Category Archives: Stem Cell Treatments

CLEARWATER, FL--(Marketwire -05/29/12)- Biostem U.S., Corporation, (HAIR.PK) (HAIR.PK) (Biostem, the Company), a fully reporting public company in the stem cell regenerative medicine sciences sector, today announced that Philip A. Lowry, MD, has been appointed as the Chairman of its Scientific and Medical Board of Advisors (SAMBA).

According to Biostem CEO, Dwight Brunoehler, "As Chairman, Dr. Lowry will work with a team drawn from a cross-section of medical specialties. His combination of research, academic and community practice experience make him the perfect individual to coordinate and lead the outstanding group of physicians that makes up our SAMBA. As a group, The SAMBA will guide the company to maintain the highest ethical standards in every effort, while seeking and developing new cutting edge technology based on stem cell use. I am privileged to work with Dr. Lowry, once again."

Dr. Lowry stated, "Dwight is an innovative businessman with an eye on cutting-edge stem cell technology. His history in the industry speaks for itself. I like the plan at Biostem and look forward to working with everyone involved."

Dr. Philip A. Lowry received his undergraduate degree from Harvard College before going on to the Yale University School of Medicine. His completed his internal medicine residency at the University of Virginia then pursued fellowship training in hematology and oncology there as well. During fellowship training and subsequently at the University of Massachusetts, he worked in the laboratory of Dr. Peter Quesenberry working on in vitro and in vivo studies of mouse and human stem cell biology.

Dr. Lowry twice served on the faculty at the University of Massachusetts Medical Center from 1992-1996 and from 2004-2009 as an assistant and then associate clinical professor of medicine establishing the bone marrow/stem cell transplantation program there, serving as medical director of the Cryopreservation Lab supporting the transplant program, helping to develop a cord blood banking program, and teaching and coordinating the second year medical school course in hematology and oncology. Dr. Lowry additionally has ten years experience in the community practice of hematology and oncology. In 2010, Dr. Lowry became chief of hematology/oncology for the Guthrie Health System, a three-hospital tertiary care system serving northern Pennsylvania and southern New York State. He is charged with developing a cutting-edge cancer program that can project into a traditionally rural health care delivery system.

Dr. Lowry has also maintained a career-long interest in regenerative medicine springing from his research and practice experience in stem cell biology. His new role positions him to foster further development of that field. As part of a horizontally and vertically integrated multi-specialty team, he is closely allied with colleagues in cardiology, neurology/neurosurgery, and orthopedics among others with whom he hopes to stimulate the expansion of regenerative techniques.

About Biostem U.S., Corporation

Biostem U.S., Corporation is a fully reporting Nevada corporation with offices in Clearwater, Florida. Biostem is a technology licensing company with proprietary technology centered on providing hair re-growth using human stem cells. The company also intends to train and license selected physicians to provide Regenerative Cellular Therapy treatments to assist the body's natural approach to healing tendons, ligaments, joints and muscle injuries by using the patient's own stem cells. Biostem U.S. is seeking to expand its operations worldwide through licensing of its proprietary technology and acquisition of existing stem cell-related facilities. The company's goal is to operate in the international biotech market, focusing on the rapidly growing regenerative medicine field, using ethically sourced adult stem cells to improve the quality and longevity of life for all mankind.

More information on Biostem U.S., Corporation can be obtained through http://www.biostemus.com, or by calling Fox Communications Group 310-974-6821.

Link:
Biostem U.S., Corporation Appoints Philip A. Lowry, MD as Chairman of Its Scientific and Medical Board of Advisors

Arrangement pairs one of Canada's most successful biotech executive teams with academic discovery engine to address the need for better drugs targeting cancer stem cells and regenerative medicine.

TORONTO/HAMILTON, May 29, 2012 /CNW/ - Actium Research Inc., ("Actium" or the "Company") Toronto, and McMaster University ("McMaster"), Hamilton, have entered into a landmark collaboration covering McMaster's proprietary adult human stem cell lines, cancer stem cells and the directed differentiation platform developed by Dr. Mick Bhatia and his team at the McMaster Stem Cell and Cancer Research Institute ("The Stem Cell Institute"). Together these technologies and the expertise at The Stem Cell Institute provide leading edge tools for drug discovery and better treatments for serious illnesses.

Actium is a drug discovery and development company targeting two types of stem cells; cancer stem cells to improve survival and health outcomes and normal tissue stem cells to promote healing and address the need for cure in chronic diseases. Actium was founded by Dr. David Young and Helen Findlay. Dr. Bhatia joined as the scientific founder in 2012. The team will put their experience with managing drug discovery platforms, development pathways and product pipelines to work to build Actium into a leading biotech company.

Previously, Dr. David Young and Ms Helen Findlay were uniquely successful in creating ARIUS Research Inc. ("ARIUS"), a public biotech company, trading on the TSX, specializing in the discovery and development of therapeutic cancer antibodies based entirely on technology developed in its own research labs. ARIUS' FunctionFIRST technology was partnered with leading companies such as Takeda Pharmaceuticals, Japan's largest drug company, Genentech, the leader in cancer antibodies, and Protein Design Labs, a pioneer in antibody humanization. These and other partnerships represented over $400 million of value. ARIUS was a singular financial success story in Canada. The sale of the company to Roche in 2008 generated a five times return on capital, cash on cash, representing the largest return to date for investors in a Canadian biotech company. More importantly, the company created the first specific cancer stem cell drug to enter human clinical trials. The company was well recognized for its accomplishments: it was named as a top 50 company by the TSX Venture Exchange in 2005, a top 10 company by Ottawa Life Sciences Council in 2006, and Biotech Company of the Year by BioteCanada in 2009.

"After we founded Actium we were presented with many interesting technologies looking for commercialization support." said David Young, Actium CEO. "Ontario has a wealth of great researchers and I think with Dr. Mick Bhatia's leadership and the support from the community, the Stem Cell Institute at McMaster stands at the forefront. Much has been written about Canada's commercialization gap and desperate need to move our research from the bench into the clinic so that we benefit from medical innovation both as patients and as a society. The federal government placed a lot of emphasis on addressing this gap in the most recent budget and our agreement with McMaster represents a great example of academia working with the private sector to achieve these goals. Actium is pleased to join the other companies and groups working to see Ontario's medical research advanced to provide our physicians with new tools to achieve better outcomes."

McMaster University is committed to creating collaborations that help accelerate the pace intellectual property is transferred from its labs and to the marketplace, where it will have the greatest impact.

"This specific initiative will assist us in doing just that," said Mo Elbestawi, McMaster Vice-President, Research and International Affairs. "These discoveries from Dr. Bhatia's lab show great promise and we're delighted with his efforts to commercialize the results of his research, from which many will benefit."

Initially, Actium will develop anti-cancer stem cell drugs that are directed against a newly identified cancer stem cell marker in leukemia and breast cancer. Cancer stem cells are a unique group of cells within a tumor that do not respond to conventional therapies and may be responsible for cancers that spread or that return after treatment. The company will also work through research agreements with McMaster and The Stem Cell Institute to identify drugs that cause "normal" stem cells to become specialized as different tissue types to promote healing. In addition, the Actium strategy includes accessing technologies that expand drug development capabilities or fill pipeline gaps. The overall development strategy is guided by principles of pipeline management where projects compete with each other for resources, and allocations are made according to success-based performance metrics. "This is the most efficient way to allocate resources to the compounds with the best chances of becoming breakthrough drugs. In this horse race the winners go on to the next race until a champion is crowned", said Dr. Bhatia, Actium Chief Scientific Officer.

About McMaster University and the McMaster Industry Liaison Office

McMaster University, one of four Canadian universities listed among the Top 100 universities in the world, is renowned for its innovation in both learning and discovery. With a research income of more than $395 million, McMaster ranks second in research intensity among Canadian universities. It is home to more than 23,000 students, 1,300 faculty members, and 70 world-class research centres and institutes. Through the McMaster Industry Liaison Office, the University facilitates the commercialization efforts of its faculty by connecting them to the marketplace.

Go here to see the original:
Actium Research and McMaster University Collaborate to Commercialize Stem Cell Technologies

EDINBURGH, Scotland, May 29, 2012 /PRNewswire/ -- Research into conditions such as multiple sclerosis and heart and liver disease will benefit from multi-million dollar stem cell research and life sciences facilities opened yesterday by HRH, the Princess Royal.

The Princess Royal is to unveil plaques this afternoon at the $85 million Scottish Centre for Regenerative Medicine (SCRM) and $38 million bio-incubator facility, Nine, in Edinburgh.

The University of Edinburgh's Scottish Centre for Regenerative Medicine will carry out cutting-edge stem cell research to help find therapies for patients with conditions such as multiple sclerosis, Parkinson's disease, motor neurone disease, and heart and liver diseases.

The centre is the first large-scale, purpose-built facility of its kind and provides accommodation for up to 250 stem cell scientists. The centre, funded by the University of Edinburgh, Scottish Enterprise, the Medical Research Council (MRC) and the British Heart Foundation through its Mending Broken Hearts Appeal, was opened by the Princess Royal in her role as Chancellor of the University. It includes the most up-to-date facilities in the UK, which meet the highest guidelines, to manufacture stem cell lines that could be used for patient therapies.

Nine, which has been jointly funded by Scottish Enterprise and the UK Government's Department for Business, Innovation and Skills, provides 85,000 square feet of laboratory and office space for both established biotechnology companies and start-up ventures. These could include potential spin-out companies from the University of Edinburgh.

Both buildings form a major investment in research at Edinburgh BioQuarter, which is in the city's Little France area and encompasses the Royal Infirmary of Edinburgh and the University of Edinburgh's Queen's Medical Research Institute and Chancellor's Building.

Professor Charles french-Constant, Director of the Medical Research Council Centre for Regenerative Medicine at the SCRM and Chair of Medical Neurology at the University of Edinburgh, said: "Recent research into stem cells has heralded the beginning of a revolution in modern medicine. The Scottish Centre for Regenerative Medicine's great strength lies in bringing world-class clinicians and scientists to work together, encouraging the translation of laboratory discoveries into treatments for patients. The research will help in finding treatments for devastating conditions, for which there are currently no cures."

Jim McFarlane, Managing Director of Operations at Scottish Enterprise said: "Scotland has a distinguished history in developing breakthroughs in medical science and we believe that, collectively, the concentration of world-class research and facilities at Edinburgh BioQuarter will provide a breeding ground conducive to new medical discoveries that will continue that tradition for centuries to come and have a significant impact on the Scottish economy.

"Already, Nine has secured its first tenants and is attracting significant interest from potential occupiers from Scotland's life sciences sector.The official opening of the bio-incubator facility marks a major milestone in cementing Scotland's global reputation for excellence in commercialization of medical research."

Edinburgh BioQuarter is a joint venture between NHS Lothian, Scottish Enterprise, the University of Edinburgh and Alexandria Real Estate Equities, to boost developments in life sciences. This includes assisting the formation of spin-out companies from NHS and University of Edinburgh research, as well as encouraging partnerships with the bio-pharmaceutical industry.

Continued here:
Scotland opens stem cell research center and bio-medical incubator

By the time Dr. Spencer Misner had carved away the dead and diseased flesh from Bobby Rices right foot last year, little remained other than bones and tendons.

I couldnt believe it. It didnt look real. It looked like something out of a movie, recalled Rice, a Whitfield County resident.

Today, the ankle has almost completely healed. It looks like Rice had simply scraped it. And Rices foot has largely healed, too. Misner credits cutting-edge stem cell treatments for saving Rices foot and leg.

Rice, who has diabetes, stepped on a piece of glass last fall and his foot quickly became infected. After trying a home remedy, Rice eventually went to Daltons Hamilton Medical Center emergency room, where doctors found he had a rapidly spreading necrotizing fasciitis, or in laymans terms, flesh-eating bacteria.

Physicians treated the infection with antibiotics. However, Rice had one toe amputated. Doctors had to strip away much of the flesh from Rices foot and a great deal of flesh along his ankle.

We did what we had to do, Misner said. We got the infection out. We saved his life. But what do you do next? Wed normally say all you can do now is cut of his leg so he can get on with his life.

But Misner had another idea. He contacted Ed Fickey, a sales representative for Osiris Therapeutics and asked about using the companys new stem cell technologies to rebuild the foot and ankle.

Stem cells can grow and differentiate into many different types of cells. Stem cell treatments introduce these cells into damaged or diseased organs to repair them.

The problem is that Bobby is an indigent patient and didnt have the financial resources. Ed spoke to the company, and they agreed to donate the products for free, Misner said.

Osiris provided two products called Grafix and Ovation. Fickey said they are made from adult stem cells derived from donated placenta and do not come from embryos.

Go here to read the rest:
Stem cell treatment regrows Whitfield man’s foot

ScienceDaily (May 24, 2012) A team of scientists at McMaster University has discovered a drug, thioridazine, successfully kills cancer stem cells in the human while avoiding the toxic side-effects of conventional cancer treatments.

"The unusual aspect of our finding is the way this human-ready drug actually kills cancer stem cells; by changing them into cells that are non-cancerous," said Mick Bhatia, the principal investigator for the study and scientific director of McMaster's Stem Cell and Cancer Research Institute in the Michael G. DeGroote School of Medicine.

Unlike chemotherapy and radiation, thioridazine appears to have no effect on normal stem cells.

The research, published May 24 in the science journal Cell, holds the promise of a new strategy and discovery pipeline for the development of anticancer drugs in the treatment of various cancers. The research team has identified another dozen drugs that have good potential for the same response.

For 15 years, some researchers have believed stem cells are the source of many cancers. In 1997, Canadian researchers first identified cancer stem cells in certain types of leukemia. Cancer stem cells have since been identified in blood, breast, brain, lung, gastrointestinal, prostate and ovarian cancer.

To test more than a dozen different compounds, McMaster researchers pioneered a fully automated robotic system to identify several drugs, including thioridazine.

"Now we can test thousands of compounds, eventually defining a candidate drug that has little effect on normal stem cells but kills the cells that start the tumor," said Bhatia.

The next step is to test thioridazine in clinical trials, focusing on patients with acute myeloid leukemia whose disease has relapsed after chemotherapy. Bhatia wants to find out if the drug can put their cancer into remission, and by targeting the root of the cancer (cancer stem cells) prevent the cancer from coming back. Researchers at McMaster have already designed how these trials would be done.

Bhatia's team found thioridazine works through the dopamine receptor on the surface of the cancer cells in both leukemia and breast cancer patients. This means it may be possible to use it as a biomarker that would allow early detection and treatment of breast cancer and early signs of leukemia progression, he said.

The research team's next step is to investigate the effectiveness of the drug in other types of cancer. In addition, the team will explore several drugs identified along with thioridazine. In the future, thousands of other compounds will be analyzed with McMaster robotic stem cell screening system in partnership with collaborations that include academic groups as well as industry.

Excerpt from:
Drug destroys human cancer stem cells but not healthy ones

Public release date: 25-May-2012 [ | E-mail | Share ]

Contact: Scott LaFee slafee@ucsd.edu 619-543-6163 University of California - San Diego

Five scientists from the University of California, San Diego and its School of Medicine have been awarded almost $12 million in new grants from the California Institute for Regenerative Medicine (CIRM) to conduct stem cell-based research into regenerating spinal cord injuries, repairing gene mutations that cause amyotrophic lateral sclerosis and finding new drugs to treat heart failure and Alzheimer's disease.

The awards mark the third round of funding in CIRM's Early Translational Awards program, which supports projects that are in the initial stages of identifying drugs or cell types that could become disease therapies. More than $69 million in awards were announced yesterday, including funding for first-ever collaboratively funded research projects with China and the federal government of Australia.

"With these new awards, the agency now has 52 projects in 33 diseases at varying stages of working toward clinical trials," said Jonathan Thomas, JD, PhD and CIRM governing board chair. "Californians should take pride in being at the center of this worldwide research leading toward new cures. These projects represent the best of California stem cell science and the best international experts who, together, will bring new therapies for patients."

The five new UC San Diego awards are:

With a $1.8 million award, Lawrence Goldstein, PhD, professor in the Department of Cellular and Molecular Medicine, Howard Hughes Medical Institute Investigator and director of the UC San Diego Stem Cell Program, and colleagues will continue their work developing new methods to find and test drug candidates for Alzheimer's disease (AD). Currently, there is no effective treatment for AD. The researchers screen novel candidates using purified human brain cells made from human reprogrammed stem cells. Already, they have discovered that these human brain cells exhibit a unique biochemical behavior that indicates early development of AD in a dish.

Mark H. Tuszynski, MD, PhD, professor of neurosciences and director of the Center for Neural Repair at UC San Diego, and colleagues seek to develop more potent stem cell-based treatments for spinal cord injuries. By combining grafts of neural stem cells with scaffolds placed at injury sites, the researchers have reported substantial progress in restoring functional improvement in impaired animal models. The new $4.6 million grant will fund work to identify the optimal human neural stem cells for preclinical development and, in an unprecedented step, test this treatment in appropriate preclinical models of spinal cord injury, providing the strongest validation for human translation.

Amyotrophic lateral sclerosis or ALS (Lou Gehrig's disease) is a progressive neurological condition that is currently incurable. Gene Yeo, PhD, assistant professor in the Department of Cellular and Molecular Medicine, and colleagues will use a $1.6 million grant to exploit recent discoveries that specific mutations in RNA-binding proteins cause neuronal dysfunction and death. They will use neurons generated from patient cells containing the mutations to identify the unique RNA "signature" of these doomed neurons and screen for drug-like compounds that bypass the mutations to correct the RNA signature to obtain healthy neurons.

Eric David Adler, MD, an associate clinical professor of medicine and cardiologist, studies heart failure, including the use of stem cells to treat it. His $1.7 million award will fund research into Danon disease, a type of inherited heart failure that frequently kills patients by their 20s. Adler and colleagues will turn stem cells created from skin cells of patients with Danon disease into heart cells, then screen hundreds of thousands of drug candidates for beneficial effects. The most promising drugs will subsequently be tested on mice with a genetic defect similar to Danon disease, with the ultimate goal of identifying a suitable candidate for human clinical trials. The research may have broader applications for other conditions with similar pathogenesis, such as cancer and Parkinson's disease.

Read the original:
UC San Diego researchers receive new CIRM funding

Public release date: 24-May-2012 [ | E-mail | Share ]

Contact: Tom Vasich tmvasich@uci.edu 949-824-6455 University of California - Irvine

Irvine, Calif., May 24, 2012 A UC Irvine immunologist will receive $4.8 million to create a new line of neural stem cells that can be used to treat multiple sclerosis.

The California Institute for Regenerative Medicine awarded the grant Thursday, May 24, to Thomas Lane of the Sue & Bill Gross Stem Cell Research Center at UCI to support early-stage translational research.

CIRM's governing board gave 21 such grants worth $69 million to 11 institutions statewide. The funded projects are considered critical to the institute's mission of translating basic stem cell discoveries into clinical cures. They are expected to either result in candidate drugs or cell therapies or make significant strides toward such treatments, which can then be developed for submission to the Food & Drug Administration for clinical trial.

Lane's grant brings total CIRM funding for UCI to $76.65 million.

"I am delighted that CIRM has chosen to support our efforts to advance a novel stem cell-based therapy for multiple sclerosis," said Peter Donovan, director of the Sue & Bill Gross Stem Cell Research Center.

MS is a disease of the central nervous system caused by inflammation and loss of myelin, a fatty tissue that insulates and protects nerve cells. Current treatments are often unable to stop the progression of neurologic disability most likely due to irreversible nerve destruction resulting from myelin deficiencies. The limited ability of the body to repair damaged nerve tissue highlights a critically important and unmet need for MS patients.

In addressing this issue, Lane who also directs UCI's Multiple Sclerosis Research Center will target a stem cell treatment that will not only halt ongoing myelin loss but also encourage the growth of new myelin that can mend damaged nerves.

"Our preliminary data are very promising and suggest that this goal is possible," said Lane, a Chancellor's Fellow and professor of molecular biology & biochemistry. "Research efforts will concentrate on refining techniques for production and rigorous quality control of transplantable cells generated from high-quality human pluripotent stem cell lines, leading to the development of the most therapeutically beneficial cell type for eventual use in patients with MS."

Read the original:
UCI stem cell researcher to receive $4.8 million in state funding

Released: 5/16/2012 2:15 PM EDT Embargo expired: 5/24/2012 12:00 PM EDT Source: McMaster University

Newswise Hamilton, ON (May 24, 2012) -- A team of scientists at McMaster University has discovered a drug, thioridazine, successfully kills cancer stem cells in the human while avoiding the toxic side-effects of conventional cancer treatments.

The unusual aspect of our finding is the way this human-ready drug actually kills cancer stem cells; by changing them into cells that are non-cancerous, said Mick Bhatia, the principal investigator for the study and scientific director of McMasters Stem Cell and Cancer Research Institute in the Michael G. DeGroote School of Medicine.

Unlike chemotherapy and radiation, thioridazine appears to have no effect on normal stem cells.

The research, published today in the science journal CELL, holds the promise of a new strategy and discovery pipeline for the development of anticancer drugs in the treatment of various cancers. The research team has identified another dozen drugs that have good potential for the same response.

For 15 years, some researchers have believed stem cells are the source of many cancers. In 1997, Canadian researchers first identified cancer stem cells in certain types of leukemia. Cancer stem cells have since been identified in blood, breast, brain, lung, gastrointestinal, prostate and ovarian cancer.

To test more than a dozen different compounds, McMaster researchers pioneered a fully automated robotic system to identify several drugs, including thioridazine.

Now we can test thousands of compounds, eventually defining a candidate drug that has little effect on normal stem cells but kills the cells that start the tumor, said Bhatia.

The next step is to test thioridazine in clinical trials, focusing on patients with acute myeloid leukemia whose disease has relapsed after chemotherapy. Bhatia wants to find out if the drug can put their cancer into remission, and by targeting the root of the cancer (cancer stem cells) prevent the cancer from coming back. Researchers at McMaster have already designed how these trials would be done.

Bhatias team found thioridazine works through the dopamine receptor on the surface of the cancer cells in both leukemia and breast cancer patients. This means it may be possible to use it as a biomarker that would allow early detection and treatment of breast cancer and early signs of leukemia progression, he said.

Here is the original post:
Researchers Discover Drug Destroys Human Cancer Stem Cells but Not Healthy Ones

On a special surface that could help advance stem cell therapies, UM researchers have turned human skin cells into adult-derived stem cells, coaxed them into bone cells and then transplanted them into holes in the skulls of mice. The cells produced four times as much new bone growth as in the mice without the extra bone cells. In this pink-stained image, the black outline partially encloses the new bone growth in the skull. Image credit: Villa-Diaz, L.G., Brown, S.E., Liu, Y. Ross, A.M., Lahann, J.M., Krebsbach, P.H., University of Michigan

ANN ARBOR University of Michigan researchers have proven that a special surface, free of biological contaminants, allows adult-derived stem cells to thrive and transform into multiple cell types. Their success brings stem cell therapies another step closer.

To prove the cells regenerative powers, bone cells grown on this surface were then transplanted into holes in the skulls of mice, producing four times as much new bone growth as in the mice without the extra bone cells.

An embryos cells really can be anything they want to be when they grow up: organs, nerves, skin, bone, any type of human cell. Adult-derived induced stem cells can do this and better. Because the source cells can come from the patient, they are perfectly compatible for medical treatments.

In order to make them, Paul Krebsbach, professor of biological and materials sciences at the UM School of Dentistry, said, We turn back the clock, in a way. Were taking a specialized adult cell and genetically reprogramming it, so it behaves like a more primitive cell.

Specifically, they turn human skin cells into stem cells. Less than five years after the discovery of this method, researchers still dont know precisely how it works, but the process involves adding proteins that can turn genes on and off to the adult cells.

Before stem cells can be used to make repairs in the body, they must be grown and directed into becoming the desired cell type. Researchers typically use surfaces of animal cells and proteins for stem cell habitats, but these gels are expensive to make, and batches vary depending on the individual animal.

You dont really know whats in there, said Joerg Lahann associate professor of chemical engineering and biomedical engineering.

For example, he said that human cells are often grown over mouse cells, but they can go a little native, beginning to produce some mouse proteins that may invite an attack by a patients immune system.

The polymer gel created by Lahann and his colleagues in 2010 avoids these problems because researchers are able to control all of the gels ingredients and how they combine.

View post:
UM: Stem-Cell-Growing Surface Enables Bone Repair

Public release date: 24-May-2012 [ | E-mail | Share ]

Contact: Veronica McGuire vmcguir@mcmaster.ca 90-552-591-402-2169 McMaster University

Hamilton, ON (May 24, 2012) -- A team of scientists at McMaster University has discovered a drug, thioridazine, successfully kills cancer stem cells in the human while avoiding the toxic side-effects of conventional cancer treatments.

"The unusual aspect of our finding is the way this human-ready drug actually kills cancer stem cells; by changing them into cells that are non-cancerous," said Mick Bhatia, the principal investigator for the study and scientific director of McMaster's Stem Cell and Cancer Research Institute in the Michael G. DeGroote School of Medicine.

Unlike chemotherapy and radiation, thioridazine appears to have no effect on normal stem cells.

The research, published today in the science journal CELL, holds the promise of a new strategy and discovery pipeline for the development of anticancer drugs in the treatment of various cancers. The research team has identified another dozen drugs that have good potential for the same response.

For 15 years, some researchers have believed stem cells are the source of many cancers. In 1997, Canadian researchers first identified cancer stem cells in certain types of leukemia. Cancer stem cells have since been identified in blood, breast, brain, lung, gastrointestinal, prostate and ovarian cancer.

To test more than a dozen different compounds, McMaster researchers pioneered a fully automated robotic system to identify several drugs, including thioridazine.

"Now we can test thousands of compounds, eventually defining a candidate drug that has little effect on normal stem cells but kills the cells that start the tumor," said Bhatia.

The next step is to test thioridazine in clinical trials, focusing on patients with acute myeloid leukemia whose disease has relapsed after chemotherapy. Bhatia wants to find out if the drug can put their cancer into remission, and by targeting the root of the cancer (cancer stem cells) prevent the cancer from coming back. Researchers at McMaster have already designed how these trials would be done.

Read the original:
McMaster University researchers discover drug destroys human cancer stem cells but not healthy ones