Immune system harnessed to improve stem cell transplant outcomes
By daniellenierenberg
ScienceDaily (Oct. 1, 2012) A novel therapy in the early stages of development at Virginia Commonwealth University Massey Cancer Center shows promise in providing lasting protection against the progression of multiple myeloma following a stem cell transplant by making the cancer cells easier targets for the immune system.
Outlined in the British Journal of Hematology, the Phase II clinical trial was led by Amir Toor, M.D., hematologist-oncologist in the Bone Marrow Transplant Program and research member of the Developmental Therapeutics program at VCU Massey Cancer Center. The multi-phased therapy first treats patients with a combination of the drugs azacitidine and lenalidomide. Azacitidine forces the cancer cells to express proteins called cancer testis antigens (CTA) that immune system cells called T-cell lymphocytes recognize as foreign. The lenalidomide then boosts the production of T-cell lymphocytes. Using a process called autologous lymphocyte infusion (ALI), the T-cell lymphocytes are then extracted from the patient and given back to them after they undergo a stem cell transplant to restore the stem cells' normal function. Now able to recognize the cancer cells as foreign, the T-cell lymphocytes can potentially protect against a recurrence of multiple myeloma following the stem cell transplant.
"Every cell in the body expresses proteins on their surface that immune system cells scan like a barcode in order to determine whether the cells are normal or if they are foreign. Because multiple myeloma cells are spawned from bone marrow, immune system cells cannot distinguish them from normal healthy cells," says Toor. "Azacitidine essentially changes the barcode on the multiple myeloma cells, causing the immune system cells to attack them," says Toor.
The goal of the trial was to determine whether it was safe, and even possible, to administer the two drugs in combination with an ALI. In total, 14 patients successfully completed the investigational drug therapy. Thirteen of the participants successfully completed the investigational therapy and underwent a stem cell transplant. Four patients had a complete response, meaning no trace of multiple myeloma was detected, and five patients had a very good partial response in which the level of abnormal proteins in their blood decreased by 90 percent.
In order to determine whether the azacitidine caused an increased expression of CTA in the multiple myeloma cells, Toor collaborated with Masoud Manjili, D.V.M., Ph.D., assistant professor of microbiology and immunology at VCU Massey, to conduct laboratory analyses on bone marrow biopsies taken from trial participants before and after treatments. Each patient tested showed an over-expression of multiple CTA, indicating the treatment was successful at forcing the cancer cells to produce these "targets" for the immune system.
"We designed this therapy in a way that could be replicated, fairly inexpensively, at any facility equipped to perform a stem cell transplant," says Toor. "We plan to continue to explore the possibilities of immunotherapies in multiple myeloma patients in search for more effective therapies for this very hard-to-treat disease."
In addition to Manjili, Toor collaborated with John McCarty, M.D., director of the Bone Marrow Transplant Program at VCU Massey, and Harold Chung, M.D., William Clark, M.D., Catherine Roberts, Ph.D., and Allison Hazlett, also all from Massey's Bone Marrow Transplant Program; Kyle Payne, Maciej Kmieciak, Ph.D., from Massey and the Department of Microbiology and Immunology at VCU School of Medicine; Roy Sabo, Ph.D., from VCU Department of Biostatistics and the Developmental Therapeutics program at Massey; and David Williams, M.D., Ph.D., from the Department of Pathology at VCU School of Medicine, co-director of the Tissue and Data Acquisition and Analysis Core and research member of the Developmental Therapeutics program at Massey.
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Immune system harnessed to improve stem cell transplant outcomes
Stem Cell Therapy—Breakthrough in Health Paradigm
By daniellenierenberg
By Sharmistha Banerjee - September 25, 2012 | Tickers: NBS, OSIR, PSTI | 0 Comments
Sharmistha is a member of The Motley Fool Blog Network -- entries represent the personal opinions of our bloggers and are not formally edited.
Far-reaching accomplishments in the biotechnology sector meet its most ambitious expectations, stem cell therapy. The birth of this new industry has boosted the enthusiasm and energy of investors and has brought unprecedented capability and optimistic predictions. New developments in regenerative medicine are bringing about exciting, novel approaches to create therapies for hard to treat diseases. The biotechnology industry has been soaring in 2012 as companies both large and small have shown impressive growth.
The cell therapy space has seen relatively small companies making strides in the right direction with increased government support. Osiris Therapeutics (NASDAQ: OSIR) a leading stem cell company is currently the only company with an approved cell therapy. The approval is more of a first step in a long walk for Osiris. Reuters reported that shares of Osiris Therapeutics rose 15% on May 30, 2012, after U.S. health regulators said the stem cell technology company's wound treatment was eligible for reimbursement when used in hospitals in out-patient settings or in ambulances. The company carries over a $300 million market capitalization and trades at $9.50 per share, primarily on the strength of a recent Canadian approval for its stem cell drug for graft-versus-host disease. Osiris Therapeutics has a 1-year low of $4.12 and a 1-year high of $14.46. The company has a market cap of $311.3 million and a price-to-earnings ratio of 90.98. Investors are impressed and optimistic with Osiris progress in cell-based therapies. They currently have a $9.75 target price on the stock. Despite having to negotiate a more challenging regulation process the company has continued to show investors strong gains in 2012.With a current ratio of 8.51 and debt equity of (0.00%) the company boasts of a financially secure position in the market.
Pluristem Therapeutics (NASDAQ: PSTI) a small firm with a market cap of less than $180 million has been concentrating on its placenta-based cell therapies, is considered one of the more advanced in the cell therapy arena, and unlike OSIR, its lead candidates treat diseases that could potentially return significant revenue. The upside for PSTI is lower costs, quicker healing time, ease of administration, and most importantly, it can grow vessels and provide the possibility of a cure, which has led to optimism surrounding the stock. Shares of Pluristem Therapeutics are up over 3.98% and most likely headed higher in the days ahead. It has traded higher by 85% during the last three months and is now valued at $200 million. Pluristem may actually beat OSIR in the race to become the first U.S. approved cell therapy with its bone marrow therapy, in which it has recently applied for approval. Pluristem is a company that I think is showing great promise. From the stock's action in the last several months, it is clear investors recognize that Pluristem's unique platform technology has the potential for tremendous value in a lucrative range of medical markets both the very large and the very small. The company wins both ways. Its clinical segment is creating candidates with large revenue potential, with analysts projecting peak sales of $700 million for AMR-001, which treats patients following acute myocardial infarction. The company is reasonably well funded with around $42 million in cash and cash equivalents.
NeoStem (NYSEMKT: NBS) is by far the leader in regards to the manufacturing business, and no other company comes close. In addition, its stock has returned the most over in the last three months, with a 100% gain. NeoStem stocks looks promising as a biotechnology investment. First, the company is focusing on several promising areas of new stem cell treatment development. Second, its contract manufacturing business brings in revenues to offset some of its drug development expenditures. Third, the contract manufacturing business could earn substantial royalties if any of the products on which it works with customers proves to be a commercial success. NeoStem's manufacturing segment which is also known as PCT, is well positioned to return larger gains over the next 24 months with several late stage candidates under development. a $110 million company that has increased in value by 70% during the last three months, In addition to the PCT business, NeoStem's most promising therapy is aimed at preventing major cardiac problems following acute myocardial infarction (AMI), an area that is potentially a multibillion-dollar business. NeoStem's therapy is meeting endpoints never before reached,
The three companies discussed above are showing much potential for growth and each present a significant upward shift in the current stock prices while contributing greatly to the advances of cell therapy.
Osiris is the closest to generating substantial revenue by already having two approvals, and is currently testing its therapy on other diseases, thereby leaving open the possibility of future gains. Pluristem has candidates to treat diseases in potentially large markets, and is expanding with its manufacturing facility. Although Stem Cells is in the early phases of development, it still has a very innovating therapy that, if proven effective, could advance the space even further. NeoStem possesses all the benefits of an innovating technology, a diversified pipeline, and is a candidate with significant revenue potential.
At this point, it appears that the entire space is moving forward and has lifted observers' expectations by making rapid progress. It makes sense that these three stocks would trade with such considerable gains, as investors can now identify the benefits of cell therapies. And as more approvals occur, it could be a space that trades considerably higher regardless of the market's indecisiveness. With the sector growing and maturing, investing in biotech stocks seems a promising choice in future.
SharmisthaB has no positions in the stocks mentioned above. The Motley Fool has no positions in the stocks mentioned above. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.If you have questions about this post or the Fools blog network, click here for information.
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Stem Cell Therapy—Breakthrough in Health Paradigm
Making it easier to make stem cells: Kinase inhibitors lower barrier to producing stem cells in lab
By daniellenierenberg
ScienceDaily (Sep. 25, 2012) The process researchers use to generate induced pluripotent stem cells (iPSCs) -- a special type of stem cell that can be made in the lab from any type of adult cell -- is time consuming and inefficient. To speed things up, researchers at Sanford-Burnham Medical Research Institute (Sanford-Burnham) turned to kinase inhibitors. These chemical compounds block the activity of kinases, enzymes responsible for many aspects of cellular communication, survival, and growth.
As they outline in a paper published September 25 in Nature Communications, the team found several kinase inhibitors that, when added to starter cells, help generate many more iPSCs than the standard method. This new capability will likely speed up research in many fields, better enabling scientists around the world to study human disease and develop new treatments.
"Generating iPSCs depends on the regulation of communication networks within cells," explained Tariq Rana, Ph.D., program director in Sanford-Burnham's Sanford Children's Health Research Center and senior author of the study. "So, when you start manipulating which genes are turned on or off in cells to create pluripotent stem cells, you are probably activating a large number of kinases. Since many of these active kinases are likely inhibiting the conversion to iPSCs, it made sense to us that adding inhibitors might lower the barrier."
According to Tony Hunter, Ph.D., professor in the Molecular and Cell Biology Laboratory at the Salk Institute for Biological Studies and director of the Salk Institute Cancer Center, "The identification of small molecules that improve the efficiency of generating iPSCs is an important step forward in being able to use these cells therapeutically. Tariq Rana's exciting new work has uncovered a class of protein kinase inhibitors that override the normal barriers to efficient iPSC formation, and these inhibitors should prove useful in generating iPSCs from new sources for experimental and ultimately therapeutic purposes." Hunter, a kinase expert, was not involved in this study.
The promise of iPSCs
At the moment, the only treatment option available to many heart failure patients is a heart transplant. Looking for a better alternative, many researchers are coaxing stem cells into new heart muscle. In Alzheimer's disease, researchers are also interested in stem cells, using them to reproduce a person's own malfunctioning brain cells in a dish, where they can be used to test therapeutic drugs. But where do these stem cells come from? Since the advent of iPSC technology, the answer in many cases is the lab. Like their embryonic cousins, iPSCs can be used to generate just about any cell type -- heart, brain, or muscle, to name a few -- that can be used to test new therapies or potentially to replace diseased or damaged tissue.
It sounds simple enough: you start with any type of differentiated cell, such as skin cells, add four molecules that reprogram the cells' genomes, and then try to catch those that successfully revert to unspecialized iPSCs. But the process takes a long time and isn't very efficient -- you can start with thousands of skin cells and end up with just a few iPSCs.
Inhibiting kinases to make more iPSCs
Zhonghan Li, a graduate student in Rana's laboratory, took on the task of finding kinase inhibitors that might speed up the iPSC-generating process. Scientists in the Conrad Prebys Center for Chemical Genomics, Sanford-Burnham's drug discovery facility, provided Li with a collection of more than 240 chemical compounds that inhibit kinases. Li painstakingly added them one-by-one to his cells and waited to see what happened. Several kinase inhibitors produced many more iPSCs than the untreated cells -- in some cases too many iPSCs for the tiny dish housing them. The most potent inhibitors targeted three kinases in particular: AurkA, P38, and IP3K.
Working with the staff in Sanford-Burnham's genomics, bioinformatics, animal modeling, and histology core facilities -- valuable resources and expertise available to all Sanford-Burnham scientists and the scientific community at large -- Rana and Li further confirmed the specificity of their findings and even nailed down the mechanism behind one inhibitor's beneficial actions.
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Making it easier to make stem cells: Kinase inhibitors lower barrier to producing stem cells in lab
Eastday-Shanghai doctors reveal face-change leap
By daniellenierenberg
SHANGHAI doctors announced the success of a novel technology that uses people's own skin via stem cells to grow a new face for seriously disfigured patients.
It's an alternative to the surgery used in the West in which doctors transplant the face from a dead body to a patient.
Facial tissue developed with the new technology is more readily accepted physically and psychologically by patients and has no ethical issues, doctors from Shanghai No. 9 People's Hospital said yesterday.
Since adopting the new technology, doctors have used it on more than 60 patients, including seven who needed their whole face replaced or major facial changes.
Of the seven, six were a success, while one case failed as skin on part of the face died, doctors said.
Patients include women disfigured by having sulfuric acid splashed in their faces, people who lost their nose during a fight and a person whose face was seriously burned in a fire.
Under the technology, doctors remove certain blood vessels from the patient's leg to build a small vessel net and transplant it into a place on the body to grow the new face, usually on the a patient's upper chest.
Then doctors use a skin dilator to expand the skin like a bulging ball. Later they inject the patient's own stem cells to help the skin grow stronger and stimulate the growth of blood vessels.
Soft bones which are shaped into facial features like a nose and upper jaw bone in line with the patient's own facial skeleton are then transplanted under the new facial skin.
Finally, the new face is transplanted onto the disfigured face. The new face, which is thin and comprised of a whole piece of living skin, will join with the facial muscles, thus giving a patient natural facial expressions and function to the greatest extent possible.
NeoStem to Present at Noble Capital Markets' Life Sciences Exposition on September 24
By daniellenierenberg
NEW YORK, Sept. 19, 2012 (GLOBE NEWSWIRE) -- NeoStem, Inc. (NYSE MKT:NBS) ("NeoStem" or the "Company"), a rapidly emerging market leader in the fast growing cell therapy market, today announced that Company management has been invited to participate at BIOX, the Noble Financial Capital Markets' Life Sciences Exposition on Monday, September 24. Company management will make a webcasted company presentation and participate in a cell therapy panel.
Noble Financial Capital Markets Investor Conference - BIOX Life Sciences Exposition
For more information about the conference, please visit http://www.nobleresearch.com/BIOX.htm.
About NeoStem, Inc.
NeoStem, Inc. continues to develop and build on its core capabilities in cell therapy, capitalizing on the paradigm shift that we see occurring in medicine. In particular, we anticipate that cell therapy will have a significant role in the fight against chronic disease and in lessening the economic burden that these diseases pose to modern society. We are emerging as a technology and market leading company in this fast developing cell therapy market. Our multi-faceted business strategy combines a state-of-the-art contract development and manufacturing subsidiary, Progenitor Cell Therapy, LLC ("PCT"), with a medically important cell therapy product development program, enabling near and long-term revenue growth opportunities. We believe this expertise and existing research capabilities and collaborations will enable us to achieve our mission of becoming a premier cell therapy company.
Our contract development and manufacturing service business supports the development of proprietary cell therapy products. NeoStem's most clinically advanced therapeutic, AMR-001, is being developed at Amorcyte, LLC ("Amorcyte"), which we acquired in October 2011. Amorcyte is developing a cell therapy for the treatment of cardiovascular disease and is enrolling patients in a Phase 2 trial to investigate AMR-001's efficacy in preserving heart function after a heart attack. Athelos Corporation ("Athelos"), which is approximately 80%-owned by our subsidiary, PCT, is collaborating with Becton-Dickinson in the early clinical exploration of a T-cell therapy for autoimmune conditions. In addition, pre-clinical assets include our VSELTM Technology platform as well as our mesenchymal stem cell product candidate for regenerative medicine. Our service business and pipeline of proprietary cell therapy products work in concert, giving us a competitive advantage that we believe is unique to the biotechnology and pharmaceutical industries. Supported by an experienced scientific and business management team and a substantial intellectual property estate, we believe we are well positioned to succeed.
For more information on NeoStem, please visit http://www.neostem.com.
Forward-Looking Statements for NeoStem, Inc.
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements reflect management's current expectations, as of the date of this press release, and involve certain risks and uncertainties. Forward-looking statements include statements herein with respect to the successful execution of the Company's business strategy, including with respect to the Company's or its partners' successful development of AMR-001 and other cell therapeutics, the size of the market for such products, its competitive position in such markets, the Company's ability to successfully penetrate such markets and the market for its CDMO business, and the efficacy of protection from its patent portfolio, as well as the future of the cell therapeutics industry in general, including the rate at which such industry may grow. Forward looking statements also include statements with respect to satisfying all conditions to closing the disposition of Erye, including receipt of all necessary regulatory approvals in the PRC. The Company's actual results could differ materially from those anticipated in these forward- looking statements as a result of various factors, including but not limited to (i) the Company's ability to manage its business despite operating losses and cash outflows, (ii) its ability to obtain sufficient capital or strategic business arrangement to fund its operations, including the clinical trials for AMR-001, (iii) successful results of the Company's clinical trials of AMR-001 and other cellular therapeutic products that may be pursued, (iv) demand for and market acceptance of AMR-001 or other cell therapies if clinical trials are successful and the Company is permitted to market such products, (v) establishment of a large global market for cellular-based products, (vi) the impact of competitive products and pricing, (vii) the impact of future scientific and medical developments, (viii) the Company's ability to obtain appropriate governmental licenses and approvals and, in general, future actions of regulatory bodies, including the FDA and foreign counterparts, (ix) reimbursement and rebate policies of government agencies and private payers, (x) the Company's ability to protect its intellectual property, (xi) the company's ability to successfully divest its interest in Erye, and (xii) matters described under the "Risk Factors" in the Company's Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 20, 2012 and in the Company's other periodic filings with the Securities and Exchange Commission, all of which are available on its website. The Company does not undertake to update its forward-looking statements. The Company's further development is highly dependent on future medical and research developments and market acceptance, which is outside its control.
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NeoStem to Present at Noble Capital Markets' Life Sciences Exposition on September 24
UCLA researchers discover missing link between stem cells and immune system
By daniellenierenberg
Public release date: 2-Sep-2012 [ | E-mail | Share ]
Contact: Kim Irwin kirwin@mednet.ucla.edu 310-206-2805 University of California - Los Angeles Health Sciences
UCLA researchers have discovered a type of cell that is the "missing link" between bone marrow stem cells and all the cells of the human immune system, a finding that will lead to a greater understanding of how a healthy immune system is produced and how disease can lead to poor immune function.
The studies were done using human bone marrow, which contains all the stem cells that produce blood during postnatal life.
"We felt it was especially important to do these studies using human bone marrow as most research into the development of the immune system has used mouse bone marrow," said study senior author Dr. Gay Crooks, co-director of the Eli and Edythe Broad Center of Regenerative Medicine and a co-director of the Cancer and Stem Cell Biology program at UCLA's Jonsson Comprehensive Cancer Center. "The few studies with human tissue have mostly used umbilical cord blood, which does not reflect the immune system of postnatal life."
The research team was "intrigued to find this particular bone marrow cell because it opens up a lot of new possibilities in terms of understanding how human immunity is produced from stem cells throughout life," said Crooks, a professor of pathology and pediatrics.
Understanding the process of normal blood formation in human adults is a crucial step in shedding light on what goes wrong during the process that results in leukemias, or cancers of the blood.
The study appears Sept. 2 in the early online edition of Nature Immunology.
Before this study, researchers had a fairly good idea of how to find and study the blood stem cells of the bone marrow. The stem cells live forever, reproduce themselves and give rise to all the cells of the blood. In the process, the stem cells divide and produce intermediate stages of development called progenitors, which make various blood lineages like red blood cells or platelets. Crooks was most interested in the creation of the progenitors that form the entire immune system, which consists of many different cells called lymphocytes, each with a specialized function to fight infection.
"Like the stem cells, the progenitor cells are also very rare, so before we can study them we needed to find the needle in the haystack." said Lisa Kohn, a member of the UCLA Medical Scientist Training Program and first author in the paper.
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UCLA researchers discover missing link between stem cells and immune system
Stem Cell Therapy for Cerebral Palsy in Panama – Video
By daniellenierenberg
17-08-2012 13:38 The biggest thing we've noticed is her ability to track people and her vision. Her cognitive skills have improved. Before her stem cell treatment 7 months ago, she was like a 50 watt light bulb and she is like a 200 watts in comparison. She reacts more, holds her head up more and her hands are nice and open now, not fisted like before. Hand to mouth motion is much easier for her to do. Her range of motion, in general, is much better. She can now raise her hands over her head and she was never able to do that before. Her therapists have seen dramatic changes. Our family has noticed changes. The neurologist has noticed changes. We are very thankful that we were able to get this treatment for her in Panama. We couldn't imagine her not being who she is now. She is 200 times better than what she was.
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Stem Cell Therapy for Cerebral Palsy in Panama - Video
NeoStem Reports Data Safety Monitoring Board Recommends Continuation of PreSERVE AMI Phase 2 Trial
By daniellenierenberg
NEW YORK, Aug. 15, 2012 (GLOBE NEWSWIRE) -- Amorcyte, a company of NeoStem, Inc. (NYSE MKT:NBS) ("NeoStem" or the "Company"), a rapidly emerging market leader in the fast growing cell therapy market, today announced that it received on August 9, 2012 approval to continue its PreSERVE AMI Phase 2 clinical trial following its first interim data and safety review by the Data Safety Monitoring Board (DSMB). The PreSERVE trial is a Phase 2, randomized, placebo controlled, double-blind study expected to include 160 patients at more than 40 clinical sites. The trial's product candidate, AMR-001, is designed to prevent major adverse cardiac events following acute myocardial infarction (AMI). Patient enrollment for the PreSERVE trial began in January 2012 and the Company anticipates completing enrollment in 2013 with six months initial data readout near the end of 2013.
"We are pleased that, similar to our Phase 1 trial, the first external review of our Phase 2 trial data confirms that there are no safety signals that would preclude the trial from continuing as planned," said Andrew L. Pecora, M.D. FACP CPE, Chief Medical Officer of NeoStem. "The PreSERVE AMI study to date indicates that multiple National Study sites are capable of acquiring the necessary volume of bone marrow to create the AMR-001 product five to seven days after an AMI in a safe and practical manner, and once created the product can be delivered and administered without a safety signal."
NeoStem management believes that cell therapy is a disruptive technology in the $50 billion worldwide regenerative medicine market. Many key opinion leaders in the scientific, medical and investment communities consider AMR-001 to be best in class. Peak annual worldwide sales of AMR-001 for this indication could exceed $1 billion based upon a conservative market penetration of its qualified target patient population. AMR-001 is protected by two issued and multiple pending U.S. patents with corresponding patent coverage in selected markets around the world. The Amorcyte AMR-001 product development program also extends to congestive heart failure (CHF). The Company is preparing to launch its CHF Phase 1 clinical trials in early 2013. The worldwide CHF patient population is estimated to be four times larger than that of AMI.
About NeoStem, Inc.
NeoStem, Inc. ("we," "NeoStem" or the "Company") continues to develop and build on its core capabilities in cell therapy to capitalize on the paradigm shift that we see occurring in medicine. In particular, we anticipate that cell therapy will have a large role in the fight against chronic disease and in lessening the economic burden that these diseases pose to modern society. Our January 2011 acquisition of Progenitor Cell Therapy, LLC ("PCT") provides NeoStem with a foundation in both manufacturing and regulatory affairs expertise. We believe this expertise, coupled with our existing research capabilities and collaborations, will allow us to achieve our mission of becoming a premier cell therapy company. Our PCT subsidiary's manufacturing base is one of the few current Good Manufacturing Practices ("cGMP") facilities available for contracting in the burgeoning cell therapy industry. Amorcyte, LLC ("Amorcyte"), which we acquired in October 2011, is developing a cell therapy for the treatment of cardiovascular disease. Amorcyte's lead compound, AMR-001, represents NeoStem's most clinically advanced therapeutic and Amorcyte is enrolling patients for a Phase 2 trial to investigate AMR-001's efficacy in preserving heart function after a heart attack. We also expect to begin a Phase 1 clinical trial in 2013 to investigate AMR-001's utility in arresting the progression of congestive heart failure and the associated comorbidities of that disease. Athelos Corporation ("Athelos"), which is approximately 80%-owned by our subsidiary, PCT, is engaged in collaboration with Becton-Dickinson that is exploring the earlier stage clinical development of a T-cell therapy for autoimmune conditions. In addition, our pre-clinical assets include our VSELTM Technology platform as well as our MSC (mesenchymal stem cells) product candidate for regenerative medicine.
For more information on NeoStem, please visit http://www.neostem.com.
Forward-Looking Statements for NeoStem, Inc.
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements reflect management's current expectations, as of the date of this press release, and involve certain risks and uncertainties. Forward-looking statements include statements herein with respect to the successful execution of the Company's business strategy, including with respect to the Company's or its partners' successful development of AMR-001 and other cell therapeutics, the size of the market for such products, its competitive position in such markets, the Company's ability to successfully penetrate such markets and the market for its CDMO business, and the efficacy of protection from its patent portfolio, as well as the future of the cell therapeutics industry in general, including the rate at which such industry may grow. Forward-looking statements also include statements with respect to satisfying all conditions to closing the disposition of Erye, including receipt of all necessary regulatory approvals in the PRC. The Company's actual results could differ materially from those anticipated in these forward-looking statements as a result of various factors, including but not limited to (i) the Company's ability to manage its business despite operating losses and cash outflows, (ii) its ability to obtain sufficient capital or strategic business arrangement to fund its operations, including the clinical trials for AMR-001, (iii) successful results of the Company's clinical trials of AMR-001 and other cellular therapeutic products that may be pursued, (iv) demand for and market acceptance of AMR-001 or other cell therapies if clinical trials are successful and the Company is permitted to market such products, (v) establishment of a large global market for cellular-based products, (vi) the impact of competitive products and pricing, (vii) the impact of future scientific and medical developments, (viii) the Company's ability to obtain appropriate governmental licenses and approvals and, in general, future actions of regulatory bodies, including the FDA and foreign counterparts, (ix) reimbursement and rebate policies of government agencies and private payers, (x) the Company's ability to protect its intellectual property; (xi) the company's ability to successfully divest its interest in Erye, and (xii) matters described under the "Risk Factors" in the Company's Annual Report on Form 10-K filed with the Securities and Exchange Commission on March 20, 2012 and in the Company's other periodic filings with the Securities and Exchange Commission, all of which are available on its website. The Company does not undertake to update its forward-looking statements. The Company's further development is highly dependent on future medical and research developments and market acceptance, which is outside its control.
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NeoStem Reports Data Safety Monitoring Board Recommends Continuation of PreSERVE AMI Phase 2 Trial
Fears over 'stem cell tourism'
By daniellenierenberg
A GROWING number of overseas clinics touting stem cell therapy for conditions ranging from sexual disorders to HIV are targeting Australia, where such treatments are restricted.
Australian scientists have raised concerns about so-called ''stem cell tourism'', saying many of the treatments offered are unproven, untested and potentially deadly.
The Swiss firm Fetal Cell Technologies International has been advertising in Australia since last year and Emcell, based in Ukraine, started promoting its services last month.
It is estimated as many as 200 Australians have travelled overseas for the therapy. The secretary for science policy at the Australian Academy of Science, Bob Williamson, said he empathised with the desperation of seriously ill people but warned against the unproven therapies, which can cost up to $60,000.
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''The therapies are almost all untested and unproven and sometimes they have killed people,'' Professor Williamson said. The Sun-Herald's calls to Emcell's Melbourne office were not returned.
Stem Cells Australia's Megan Munsie, who is conducting a study into stem cell tourism with Monash University, said many people she interviewed were unaware of the risks of therapy overseas.
''We're not talking about rubbing something into your skin or taking a capsule, we are talking about often a very invasive procedure,'' she said.
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Fears over 'stem cell tourism'
"Master Molecule" May Help Heart Treatment
By daniellenierenberg
Johns Hopkins researchers have discovered that a single protein molecule may hold the key to turning cardiac stem cells into blood vessels or muscle tissue, according to a release from the university. This finding may lead to better ways to treat heart attack patients.
Human heart tissue typically forms scars rather than healing well after an attack. However, stem cells have been shown improve the repair process by turning into the cells that make up healthy heart tissue, including heart muscle and blood vessels. The recent discovery of a master molecule that guides the destiny of these stem cells has the potential to result in even more effective treatments for heart patients, the Johns Hopkins researchers say.
In a study published in the June 5 online edition of journal Science Signaling, the Johns Hopkins team reported that tinkering with a protein molecule called p190RhoGAP shaped the development of cardiac stem cells and prodded them to become the building blocks for either blood vessels or heart muscle. The scientists said that by altering levels of this protein, they were able to affect the future of these stem cells. In biology, finding a central regulator like this is like finding a pot of gold, said Andre Levchenko, a biomedical engineering professor and member of the Johns Hopkins Institute for Cell Engineering, who supervised the research effort.
The lead author of the journal article, Kshitiz, a postdoctoral fellow who uses only his first name, said, Our findings greatly enhance our understanding of stem cell biology and suggest innovative new ways to control the behavior of cardiac stem cells before and after they are transplanted into a patient. This discovery could significantly change the way stem cell therapy is administered in heart patients.
Stem cell therapy 'turns back clock'
By daniellenierenberg
MANILA, Philippines Stem cell therapy, aside from being a potential cure for a wide range of illnesses, can also make a patient look and feel younger, a stem cell therapist said.
Dr. Ricardo Quiones, a cosmetic surgeon and dermatologist, has trained to conduct stem cell therapy, which he describes as the future of medicine.
Quiones said stem cell therapy has become popular for its ability to regenerate and heal properties of adult stem cells.
As we grow old, our stem cells dramatically decline. When we were children, we had 80 million stem cells. As we reach the age of 40, our stem cells decline to 35 million, he told Mornings@ANC on Friday.
Quiones explained that the procedure is similar to turning back the clock because it can increase a persons stem cells to 100 million.
Ive done two patients from Zamboanga City. I called them up after the procedure and they told me they look younger. They have the stamina, the vigor and they have felt an increase in short-term memory, powers of attention and concentration, he said.
Quiones also said the procedure has the potential to cure diabetes, heart damage, brain damage such as Parkinsons and Alzheimers, osteoarthritis, stroke, baldness and even sports injuries.
3-hour procedure
Quiones said any patient, except those diagnosed with cancer, can undergo the procedure, which he said will only last for about 3 to 4 hours.
After receiving clearance from a physician and passing medical and laboratory tests, anesthesia will be administered to a patient before stem cells are harvested.
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Stem cell therapy 'turns back clock'
Adult stem cells from bone marrow: Cell replacement/tissue repair potential in adult bone marrow stem cells in animal …
By daniellenierenberg
ScienceDaily (July 3, 2012) searchers from the University of Maryland School of Maryland report promising results from using adult stem cells from bone marrow in mice to help create tissue cells of other organs, such as the heart, brain and pancreas -- a scientific step they hope may lead to potential new ways to replace cells lost in diseases such as diabetes, Parkinson's or Alzheimer's.
The research in collaboration with the University of Paris Descartes is published online in the June 29, 2012 edition of Comptes Rendus Biologies, a publication of the French Academy of Sciences.
"Finding stem cells capable of restoring function to different damaged organs would be the Holy Grail of tissue engineering," says lead author David Trisler, PhD, assistant professor of neurology at the University of Maryland School of Medicine.
He adds, "This research takes us another step in that process by identifying the potential of these adult bone marrow cells, or a subset of them known as CD34+ bone marrow cells, to be 'multipotent,' meaning they could transform and function as the normal cells in several different organs."
University of Maryland researchers previously developed a special culturing system to collect a select sample of these adult stem cells in bone marrow, which normally makes red and white blood cells and immune cells. In this project, the team followed a widely recognized study model, used to prove the multipotency of embryonic stem cells, to prove that these bone marrow stem cells could make more than just blood cells. The investigators also found that the CD34+ cells had a limited lifespan and did not produce teratomas, tumors that sometimes form with the use of embryonic stem cells and adult stem cells cultivated from other methods that require some genetic manipulation.
"When taken at an early stage, we found that the CD34+ cells exhibited similar multipotent capabilities as embryonic stem cells, which have been shown to be the most flexible and versatile. Because these CD34+ cells already exist in normal bone marrow, they offer a vast source for potential cell replacement therapy, particularly because they come from a person's own body, eliminating the need to suppress the immune system, which is sometimes required when using adults stem cells derived from other sources," explains Paul Fishman, MD, PhD, professor of neurology at the University of Maryland School of Medicine.
The researchers say that proving the potential of these adult bone marrow stem cells opens new possibilities for scientific exploration, but that more research will be needed to see how this science can be translated to humans.
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Adult stem cells from bone marrow: Cell replacement/tissue repair potential in adult bone marrow stem cells in animal ...
Study Results: Adult Stem Cells From Bone Marrow
By daniellenierenberg
FOR IMMEDIATE RELEASE: July 3, 2012
UNIVERSITY OF MARYLAND SCHOOL OF MEDICINE INVESTIGATORS FIND CELL REPLACEMENT/ TISSUE REPAIR POTENTIAL IN ADULT BONE MARROW STEM CELLS IN ANIMAL MODEL
Scientists Looking for Potential Avenue to Grow Cells of Different Organs
Newswise Baltimore, MD July 3, 2012. Researchers from the University of Maryland School of Maryland report promising results from using adult stem cells from bone marrow in mice to help create tissue cells of other organs, such as the heart, brain and pancreas - a scientific step they hope may lead to potential new ways to replace cells lost in diseases such as diabetes, Parkinsons or Alzheimers. The research in collaboration with the University of Paris Descartes is published online in the June 29, 2012 edition of Comptes Rendus Biologies, a publication of the French Academy of Sciences.
Finding stem cells capable of restoring function to different damaged organs would be the Holy Grail of tissue engineering, says lead author David Trisler, PhD, assistant professor of neurology at the University of Maryland School of Medicine.
He adds, This research takes us another step in that process by identifying the potential of these adult bone marrow cells, or a subset of them known as CD34+ bone marrow cells, to be multipotent, meaning they could transform and function as the normal cells in several different organs.
University of Maryland researchers previously developed a special culturing system to collect a select sample of these adult stem cells in bone marrow, which normally makes red and white blood cells and immune cells. In this project, the team followed a widely recognized study model, used to prove the multipotency of embryonic stem cells, to prove that these bone marrow stem cells could make more than just blood cells. The investigators also found that the CD34+ cells had a limited lifespan and did not produce teratomas, tumors that sometimes form with the use of embryonic stem cells and adult stem cells cultivated from other methods that require some genetic manipulation.
When taken at an early stage, we found that the CD34+ cells exhibited similar multipotent capabilities as embryonic stem cells, which have been shown to be the most flexible and versatile. Because these CD34+ cells already exist in normal bone marrow, they offer a vast source for potential cell replacement therapy, particularly because they come from a persons own body, eliminating the need to suppress the immune system, which is sometimes required when using adults stem cells derived from other sources, explains Paul Fishman, MD, PhD, professor of neurology at the University of Maryland School of Medicine.
The researchers say that proving the potential of these adult bone marrow stem cells opens new possibilities for scientific exploration, but that more research will be needed to see how this science can be translated to humans.
The results of this international collaboration show the important role that University of Maryland School of Medicine researchers play in advancing scientific understanding, investigating new avenues for the development of potentially life-changing treatments, says E. Albert Reece, M.D., Ph.D., M.B.A., vice president for medical affairs at the University of Maryland and the John Z. and Akiko K. Bowers Distinguished Professor and dean of the University of Maryland School of Medicine.
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Study Results: Adult Stem Cells From Bone Marrow
Prochymal Significantly Reduces Hypertrophy, Arrhythmia and Progression to Heart Failure in Patients Suffering a Heart …
By daniellenierenberg
COLUMBIA, Md.--(BUSINESS WIRE)--
Osiris Therapeutics, Inc. (OSIR), announced today interim one-year results from its groundbreaking clinical trial evaluating Prochymal (remestemcel-L) for the treatment of patients experiencing first-time acute myocardial infarction. The trial is the largest study of allogeneic or "off-the-shelf" stem cells ever conducted in heart attack patients. A total of 220 patients were given a single infusion of either Prochymal or placebo through a standard intravenous line within seven days of an acute heart attack.
Cardiac MRI assessments were conducted for six months following infarct to evaluate cardiac remodeling. Patients receiving Prochymal had significantly less cardiac hypertrophy, as measured by cardiac MRI, compared to patients receiving placebo (p<0.05). Patients treated with Prochymal also experienced significantly less stress-induced ventricular arrhythmia (p<0.05). Cardiac hypertrophy and ventricular arrhythmia are indicators of pathological remodeling following heart injury and provide insight into the mechanism by which mesenchymal stem cells attenuate heart injury following a myocardial infarction.
The mechanistic data is complemented by clinical data showing treatment with Prochymal resulted in a statistically significant reduction in heart failure. In the study, seven patients who were treated with placebo have progressed to heart failure requiring treatment with intravenous diuretics, compared to none of the Prochymal patients (p=0.01). Furthermore, patients receiving placebo tended to require re-hospitalization for cardiac issues sooner than the patients receiving Prochymal (median 27.5 days vs. 85.5 days).
This study is the largest of its kind and provides key insights into the mechanism of action of mesenchymal stem cells in the setting of acute myocardial infarction, said Lode Debrabandere, Ph.D., Senior Vice President of Therapeutics at Osiris. These important mechanistic observations are consistent with data obtained from our preclinical models and from the first placebo-controlled human trial with Prochymal published in the Journal of the American College of Cardiology. Given the quality of the data and highly encouraging results observed thus far, we are extending the trial's duration to capture a better understanding of the long-term clinical benefits of MSCs."
The trial also demonstrated that treatment with Prochymal was safe. There were no infusional toxicities observed in patients receiving Prochymal. Serious adverse events occurred with equal frequency in both treatment groups (31.8%). To date, there have been 5 deaths in the trial, 2 in the Prochymal group and 3 in the placebo group.
For interventional cardiologists, keeping our myocardial infarction patients from progressing to heart failure is central to our mission, said Mark Vesely, M.D., Principal Investigator on the Study and Assistant Professor of Medicine (Interventional Cardiology) at the University of Maryland School of Medicine. It is remarkable and very encouraging to see significant changes in clinically meaningful parameters this early in the study. We look forward to the additional data that will be gathered as the study progresses, which will help us to better understand both the magnitude and durability of the benefit to treatment.
Prochymal, the worlds first and only stem cell drug approved by an internationally recognized regulatory authority, is used for the treatment of graft vs. host disease (GvHD). GvHD is a devastating complication of bone marrow transplantation that kills up to 80 percent of children affected. Prochymal is now approved in Canada and New Zealand, and is currently available in seven other countries including the United States under an Expanded Access Program (EAP).
About the Trial
This Phase 2, multi-center, randomized, double-blind, placebo-controlled study is evaluating the safety and efficacy of Prochymal (ex-vivo cultured adult human mesenchymal stem cells) intravenous infusion following acute myocardial infarction. A total of 220 patients were randomized (1:1) at 33 centers in the United States and Canada and received a single intravenous infusion of Prochymal or placebo within 7 days following first acute myocardial infarction. In addition to screening and baseline visits prior to the infusion, initially follow-up evaluations were scheduled to be conducted through 2 years. Given the encouraging results observed at the one year time-point, the trial is being extended to include 5 years of follow-up. Both male and female subjects between 21 and 85 years of age were enrolled. Patients had to have a left ventricular ejection fraction (LVEF) between 20% and 45% as determined by quantitative echocardiography or cardiac MRI at least 24 hours after successful reperfusion of the culprit vessel. In addition, troponin levels must have been greater than 4 times the upper limit of normal during the first 72 hours of hospitalization for the MI.
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Prochymal Significantly Reduces Hypertrophy, Arrhythmia and Progression to Heart Failure in Patients Suffering a Heart ...
Stem-cell research leaders to meet in NUIG
By daniellenierenberg
The Irish Times - Monday, July 2, 2012
LORNA SIGGINS
WORLD leaders in stem-cell technology are due to exchange knowledge of potential treatments at a conference opening in NUI Galway today.
Researchers from NUIG, University College Cork and NUI Maynooth will participate in the event, which has been billed as the first major conference on stem-cell therapy in Ireland.
Prof Anthony Hollander of the University of Bristol, England who was one of a team which successful created and then transplanted the first tissue-engineered trachea or windpipe is among a number of international speakers presenting findings.
The gathering will focus on the realities of stem-cell treatment, Prof Frank Barry, director of NUIGs National Centre for Biomedical Engineering Science has said.
The therapy is complex and controversial, and sometimes exaggerated claims are made, he said.
The researchers are specialists in Mesenchymal, or adult, stem cells, and will be concentrating on what is likely in the future, he added.
The list of conditions which could be treated successfully by stem cells is small, but growing, Prof Barry said.
Leukaemia and other diseases of the blood appear to respond best.
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Stem-cell research leaders to meet in NUIG
Stem Cells From Muscular Dystrophy Patients Transplanted Into Mice
By daniellenierenberg
Editor's Choice Main Category: Muscular Dystrophy / ALS Also Included In: Transplants / Organ Donations Article Date: 29 Jun 2012 - 11:00 PDT
Current ratings for: Stem Cells From Muscular Dystrophy Patients Transplanted Into Mice
A new study published in Science Translational Medicine reveals that researchers have, for the first time, managed to turn fibroblast cells, i.e. common cells within connective tissue, from muscular dystrophy patients into stem cells and subsequently changed these cells into muscle precursor cells. After modifying the muscle precursor cells genetically, the researchers transplanted them into mice.
In future, this new technique could be used in order to treat patients with the rare condition of limb-girdle muscular dystrophy, which primarily affects the shoulders and hips, and maybe other types of muscular dystrophies. The method was initially developed in Milan at the San Raffaele Scientific Institute and was completed at UCL.
Muscular dystrophy is a genetic disorder, which typically affects skeletal muscles. The condition leads to severely impaired mobility and can, in severe cases result in respiratory and cardiac dysfunction. At present, there is no effective treatment for the condition. A number of new potential therapies, including cell therapy, are entering clinical trials.
The scientists of this study concentrated their research on genetically modifying mesoangioblasts, i.e. a self-renewing cell that originates from the dorsal aorta and differentiates into most mesodermal tissues, which demonstrated its potential for treating muscular dystrophy in earlier studies.
Given that the muscles of patients with muscular dystrophy are depleted of mesonangioblasts, the researchers were unable to obtain sufficient numbers of these cells from patients with limb-girdle muscular dystrophy, and therefore "reprogrammed" adult cells from these patients into stem cells, which enabled them to prompt them to differentiate into mesoangioblast-like cells.The team then genetically corrected these 'progenitor' cells by using a viral vector, and injected them into mice with muscular dystrophy so that the cells targeted damaged muscle fibers.
In a mice study, the same process demonstrated that dystrophic mice were able to run on a treadmill for longer a longer time than dystrophic mice that did not receive the cells.
Research leader, Dr Francesco Saverio Tedesco, from UCL Cell & Developmental Biology, who led the study, explained:
Professor Giulio Cossu, also an author at UCL, concluded:
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Stem Cells From Muscular Dystrophy Patients Transplanted Into Mice
Human model of Huntington's disease created from skin's stem cells
By daniellenierenberg
Public release date: 28-Jun-2012 [ | E-mail | Share ]
Contact: Tom Vasich tmvasich@uci.edu 949-824-6455 University of California - Irvine
Irvine, Calif., June 28, 2012 An international consortium of Huntington's disease experts, including several from the Sue & Bill Gross Stem Cell Research Center at UC Irvine, has generated a human model of the deadly inherited disorder directly from the skin cells of affected patients.
The re-created neurons, which live in a petri dish, will help researchers better understand what disables and kills brain cells in people with HD and let them gauge the effects of potential drug therapies on cells that are otherwise locked deep in the brain.
UCI scientists were part of a consortium that in 1993 identified the autosomal dominant gene mutation responsible for HD, but there is still no cure, and no treatments are available to even slow its onset or progression. The research, published online today in the journal Cell Stem Cell, is the work of the Huntington's Disease iPSC Consortium. Participants examined several other cell lines and control cell lines to ensure that their results were consistent and reproducible in different labs.
"Our discovery will enable us for the first time to test therapies on human Huntington's disease neurons," said Leslie Thompson, UCI professor of psychiatry & human behavior and neurobiology & behavior, one of the world's leading HD experts and a senior author of the study. "This has been a remarkable time in HD research, with the advent of stem cell technologies that have allowed these scientific advancements. Also, having a team of scientists working together as a consortium has benefited the research tremendously and accelerated its pace."
Leslie Lock, a UCI assistant professor of developmental & cell biology and biological chemistry whose lab helped develop the induced pluripotent stem cells (iPSC), added: "It's exciting to be carrying out work that provides hope for HD patients and their families."
Thompson said that UCI scientists will use the new model to study the specific gene expression changes in human brain cells that trigger the onset of HD, helping them understand how these changes happen and how to correct them.
Huntington's disease afflicts about 30,000 people in the U.S. typically striking in midlife and another 75,000 carry the gene that will eventually lead to it. Caused by a mutation in the gene for a protein called huntingtin, the disease damages brain cells so that individuals with HD progressively lose their ability to walk, talk and reason. It invariably culminates in death. While rare, HD is the most common inherited neurodegenerative disease.
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Human model of Huntington's disease created from skin's stem cells
Cedars-Sinai Researchers, with Stem Cells and Global Colleagues, Develop Huntington's Research Tool
By daniellenierenberg
Newswise LOS ANGELES (EMBARGOED UNTIL NOON EDT ON JUNE 28, 2012) Cedars-Sinai scientists have joined with expert colleagues around the globe in using stem cells to develop a laboratory model for Huntingtons disease, allowing researchers for the first time to test directly on human cells potential treatments for this fatal, inherited disorder.
As explained in a paper published June 28 on the Cell Stem Cell website and scheduled for print in the journals Aug. 3 issue, scientists at Cedars-Sinais Regenerative Medicine Institute and the University of Wisconsin took skin cells from patients with Huntingtons disease and reprogrammed them into powerful stem cells; these were then made into the nervous system cells affected by the disease. Seven laboratories around the world collaborated to demonstrate the cells had hallmarks of Huntingtons.
This Huntingtons disease in a dish will enable us for the first time to test therapies on human Huntingtons disease neurons, said Clive Svendsen, PhD, director of the Cedars-Sinai Regenerative Medicine Institute and a senior author of the study. In addition to increasing our understanding of this disorder and offering a new pathway to identifying treatments, this study is remarkable because of the extensive interactions between a large group of scientists focused on developing this model. Its a new way of doing trailblazing science.
The Huntingtons Disease iPSC Consortium united some of the worlds top scientists working on this disease. Cedars-Sinai researchers took skin cells from a several Huntingtons patients, including a six-year-old with a severe juvenile form of the disease. They genetically reprogrammed these tissues into induced pluripotent stem cells, which can be made into any type of cell in the body. The cells lines were banked by scientists at Cedars-Sinai and scrutinized by all consortium members for differences that may have led to the disease. These cell lines are now an important resource for Huntingtons researchers and have been made available via a National Institutes of Health-funded repository at Coriell Institute for Medical Research in New Jersey.
Huntingtons, known to the public, for example, as the cause of folksinger Woody Guthries death, typically strikes patients in midlife. It causes jerky, twitching motions, loss of muscle control, psychiatric disorders and dementia; the disease ultimately is fatal. In rare, severe cases, the disorder appears in childhood.
Researchers believe that Huntingtons results from a mutation in the huntintin gene, leading to production of an abnormal protein and ultimately cell death in specific areas of the brain that control movement and cognition. There is no cure for Huntingtons, nor therapies to slow its progression.
The consortium showed Huntingtons cell deficits or how they differ from normal cells, including that they were less likely to survive cultivation in the petri dish. Scientists tried depriving them of a growth factor present around normal cells, or stressing them, and found that Huntingtons neurons died even faster.
It was great that these characteristics were seen not only in our laboratory, but by all of the consortium members using different techniques, said Virginia Mattis, a post-doctoral scientist at the Cedars-Sinai Regenerative Medicine Institute and one of the lead authors of the study. It was very reassuring and significantly strengthens the value of this study.
This new model will provide the foundation for a new round of experiments by the consortium funded by a new grant from the NIH and the California Institute for Regenerative Medicine.
The Cedars-Sinais Regenerative Medicine Institute has made a major commitment to projects like this Huntingtons study in which stem cell research helps to advance understanding of human disease and open new and innovative methods to identify treatments and cures. The institute has developed an induced pluripotent stem cell core facility and recruited faculty to work in this emerging area of regenerative medicine research.
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Cedars-Sinai Researchers, with Stem Cells and Global Colleagues, Develop Huntington's Research Tool
HemoGenix® FDA Master File to Measure Blood Stem Cell Potency for Cellular Therapy Products:
By daniellenierenberg
COLORADO SPRINGS, Colo.--(BUSINESS WIRE)--
HemoGenix announced today that FDA CBER has given HemoGenix its first Master File Number for an in vitro blood stem cell potency, quality and release assay (HALO-96 PQR) (1)for cellular therapy products(2)used for stem cell transplantation purposes. HALO-96 PQR is the first commercially available stem cell potency assay for cellular therapy products. It incorporates the most sensitive readout available to measure changes in the cells energy source (ATP) as a function of the potential for stem cells to proliferate. Potency and quality of stem cell therapeutic products are required to be measured prior to use to help predict the engraftment of the cells in the patient. At the present time, tests such as cell number, viability and a stem cell marker called CD34 are routinely used. However, none of these tests specifically measure stem cells and none determine the stem cell biological activity required for a potency assay. The only cell functionality test presently used in this field, especially for umbilical cord blood transplantation, is the colony-forming unit (CFU) assay, which is subjective, non-validated and has been used since the early 1970s. HALO-96 PQR changes this paradigm. It is particularly needed in the umbilical cord blood stem cell transplantation field by providing an application-specific test incorporating all of the compliance characteristics required not only by regulatory agencies(3) and standards organizations, but also the cord blood community(4).
Stem cell potency is one of the most important parameters necessary for any therapeutic product, especially stem cells. Without it, the dose cannot be defined and the transplantation physician has no indication as to whether the product will engraft in the patient. The number of cord blood units collected and stored and the number of cord blood stem cell transplantations have increased exponentially over the last 12 years. During this time, significant advancements have been made in pre- and post stem cell transplantation procedures. Yet the tests used during the preparation and processing of the cells have remained unchanged and do not even measure the biological functionality of the stem cells being transplanted. Indeed, the standards organizations responsible for applying regulatory guidance to the community have so far failed to allow any new and alternative assays to be used during cord blood processing. HALO-96 PQR is the first test that actually quantitatively characterizes and defines the stem cells in cord blood, mobilized peripheral blood or bone marrow as high quality and potent active ingredients for release prior to transplantation. Presently, approximately 20% engraftment failure is encountered in cord blood transplantation. HALO-96 PQR could help reduce the risk of engraftment failure by providing valuable and time-sensitive information on the stem cells prior to use. HALO-96 PQR complies with the guidelines not only with the cord blood community, but also with regulatory agencies thereby providing a benefit to both the stem cell transplantation center and the patient, said Ivan Rich, Founder and CEO of HemoGenix (www.hemogenix.com).
About HemoGenix, Inc.
HemoGenix is a privately held Contract Research Service and Assay Development Laboratory based in Colorado Springs, Colorado. Specializing in predictive in vitro stem cell toxicity testing, HemoGenix provides its services to small, medium and many of the largest biopharmaceutical companies. HemoGenix has developed several assays for stem cell therapy and regenerative medicine applications. These and other patented and proprietary assays are manufactured and produced in Colorado Springs and sold worldwide. HemoGenix has been responsible for changing the paradigm and bringing in vitro stem cell hemotoxicity testing into the 21st century. With HALO-96 PQR the company is now also changing the paradigm to become a leader in stem cell therapy assays. To this end, HemoGenix is a member of the Alliance for Regenerative Medicine and working with other companies to decrease risk and improve safety for the patient.
Literature Cited
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Speeding Up Bone Growth by Manipulating Stem Cells
By daniellenierenberg
Newswise If you break a bone, you know you'll end up in a cast for weeks. But what if the time it took to heal a break could be cut in half? Or cut to just a tenth of the time it takes now? Qian Wang, a chemistry professor at the University of South Carolina, has made tantalizing progress toward that goal.
Wang, Andrew Lee and co-workers just reported in Molecular Pharmaceutics that surfaces coated with bionanoparticles could greatly accelerate the early phases of bone growth. Their coatings, based in part on genetically modified Tobacco mosaic virus, reduced the amount of time it took to convert stem cells into bone nodules from two weeks to just two days.
The key to hastening bone healing or growth is to coax a perfectly natural process to pick up the pace.
"If you break a rib, or a finger, the healing is automatic," said Wang. "You need to get the bones aligned to be sure it works as well as possible, but then nature takes over."
Healing is indeed very natural. The human body continuously generates and circulates cells that are undifferentiated; that is, they can be converted into the components of a range of tissues, such as skin or muscle or bone, depending on what the body needs.
The conversion of these cells called stem cells is set into motion by external cues. In bone healing, the body senses the break at the cellular level and begins converting stem cells into new bone cells at the location of the break, bonding the fracture back into a single unit. The process is very slow, which is helpful in allowing a fracture to be properly set, but after that point the wait is at least an inconvenience, and in some cases highly detrimental.
"With a broken femur, a leg, you can be really incapacitated for a long time," said Wang. "In cases like that, they sometimes inject a protein-based drug, BMP-2, which is very effective in speeding up the healing process. Unfortunately, it's very expensive and can also have some side effects."
In a search for alternatives four years ago, Wang and colleagues uncovered some unexpected accelerants of bone growth: plant viruses. They originally meant for these viruses, which are harmless to humans, to work as controls. They coated glass surfaces with uniform coverings of the Turnip yellow mosaic virus and Tobacco mosaic virus, originally intending to use them as starting points for examining other potential variations.
But they were surprised to find that the coatings alone could reduce the amount of time to grow bone nodules from stem cells. Since then, Wang and co-workers have refined their approach to better define just what it is that accelerates bone growth.
Over the course of the past four years, they've demonstrated that it's a combination of the chemistry as well as the topography of the surface that determines how long it takes a stem cell to form bone nodules. The stem cells are nestled into a nanotopgraphy defined by the plant virus, and within that nanotopography the cells make contact with the variety of chemical groups on the viral surface.
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Speeding Up Bone Growth by Manipulating Stem Cells