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Newswise Researchers at UCLAs Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research have discovered a mechanism in adult stem cells by which the cells suppress their ability to initiate cancer during their dormant phase, an understanding that could be exploited for better cancer prevention strategies. The study was led by Andrew White, post-doctoral fellow, and William Lowry, associate professor of molecular, cell and developmental biology in the life sciences and the Maria Rowena Ross Term Chair in Cell Biology.

The study was published online ahead of print in Nature Cell Biology on December 15, 2013. Hair follicle stem cells (HFSC), the tissue-specific adult stem cells that generate the hair follicles, are also the cells of origin for cutaneous squamous cell carcinoma (SCC), a common skin cancer. These HFSCs cycle between periods of activation, during which they can grow, and quiescence, when they remain dormant.

Using mouse models, White and Lowry applied known cancer-causing genes (oncogenes) to HFSCs and found that during cell quiescence, the cells could not be made to initiate SCC. Once the HFSC were in their active period, they began growing cancer.

We found that this tumor suppression via adult stem cell quiescence was mediated by Pten, a gene important in regulating the cells response to signaling pathways, White said, therefore, stem cell quiescence is a novel form of tumor suppression in hair follicle stem cells, and Pten must be present for the suppression to work.

Understanding cancer suppression through quiescence could better inform preventative strategies in patients susceptible to SCC, such as organ transplant patients, or those taking the drug vemurafenib for melanoma, another type of skin cancer. This study also may reveal parallels between SCC and other cancers in which stem cells have a quiescent phase. This research was supported by the California Institute of Regenerative Medicine (CIRM), University of California Cancer Research Coordinating Committee (CRCC) and National institutes of Health (NIH).

The stem cell center was launched in 2005 with a UCLA commitment of $20 million over five years. A $20 million gift from the Eli and Edythe Broad Foundation in 2007 resulted in the renaming of the center. With more than 200 members, the Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research is committed to a multi-disciplinary, integrated collaboration of scientific, academic and medical disciplines for the purpose of understanding adult and human embryonic stem cells. The center supports innovation, excellence and the highest ethical standards focused on stem cell research with the intent of facilitating basic scientific inquiry directed towards future clinical applications to treat disease. The center is a collaboration of the David Geffen School of Medicine, UCLAs Jonsson Comprehensive Cancer Center, the Henry Samueli School of Engineering and Applied Science and the UCLA College of Letters and Science. To learn more about the center, visit our web site at http://www.stemcell.ucla.edu.

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Adult Stem Cells Found to Suppress Cancer While Dormant

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12-Dec-2013

Contact: Shaun Mason smason@mednet.ucla.edu 310-206-2805 University of California - Los Angeles

Stem cell researchers from UCLA have published the first study to identify the origin cells and track the early development of human articular cartilage, providing what could be a new cell source and biological roadmap for therapies to repair cartilage defects and damage from osteoarthritis.

Such transformative therapies could reach clinical trials within three years, said the scientists from UCLA's Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research.

The study, led by Dr. Denis Evseenko, an assistant professor of orthopedic surgery and head of UCLA's Laboratory of Connective Tissue Regeneration, was published online Dec. 12 in the journal Stem Cell Reports and will appear in a forthcoming print edition.

Articular cartilage, a highly specialized tissue formed from cells called chondrocytes, protects the bones of joints from forces associated with load-bearing and impact and allows nearly frictionless motion between the articular surfaces the areas where bone connects with other bones in a joint.

Cartilage injury and a lack of cartilage regeneration often lead to osteoarthritis, which involves the degradation of joints, including cartilage and bone. Osteoarthritis currently affects more than 20 million people in the U.S., making joint-surface restoration a major priority in modern medicine.

While scientists have studied the ability of different cell types to generate articular cartilage, none of the current cell-based repair strategies including expanded articular chondrocytes or mesenchymal stromal cells from adult bone marrow, adipose tissue, sinovium or amniotic fluid have generated long-lasting articular cartilage tissue in the laboratory.

For the current study, Evseenko and his colleagues used complex molecular biology techniques to determine which cells grown from embryonic stem cells, which can become any cell type in the body, were the progenitors of cartilage cells, or chondrocytes. They then tested and confirmed the growth of these progenitor cells into cartilage cells and monitored their growth progress, observing and recording important genetic features, or landmarks, that indicated the growth stages of these cells as they developed into the cartilage cells.

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UCLA stem cell scientists first to track joint cartilage development in humans

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Newswise Stem cell researchers from UCLAs Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research have published the first study to identify the origin cells and track the early development of human articular cartilage, providing what could be a new cell source and biological roadmap for therapies to repair cartilage defects and osteoarthritis. These revolutionary therapies could reach clinical trials within three years.

Led by Dr. Denis Evseenko, assistant professor of orthopedic surgery and head of UCLAs Laboratory of Connective Tissue Regeneration, the study was published online ahead of print in Stem Cell Reports on December 12, 2013.

Articular cartilage is a highly specialized tissue formed from cells called chondrocytes that protect the bones of joints from forces associated with load bearing and impact, and allows nearly frictionless motion between the articular surfaces. Cartilage injury and lack of cartilage regeneration often lead to osteoarthritis involving degradation of joints, including cartilage and bone. Osteoarthritis currently affects more than 20 million people in the United States alone, making joint surface restoration a major priority in modern medicine.

Different cell types have been studied with respect to their ability to generate articular cartilage. However, none of the current cell-based repair strategies including expanded articular chondrocytes or mesenchymal stromal cells from adult bone marrow, adipose tissue, sinovium or amniotic fluid have generated long-lasting articular cartilage tissue in the laboratory.

By bridging developmental biology and tissue engineering, Evseenkos discoveries represent a critical missing link providing scientists with checkpoints to tell if the cartilage cells (called chondrocytes) are developing correctly.

We began with three questions about cartilage development, Evseenko said, we wanted to know the key molecular mechanisms, the key cell populations, and the developmental stages in humans. We carefully studied how the chondrocytes developed, watching not only their genes, but other biological markers that will allow us to apply the system for the improvement of current stem cell-based therapeutic approaches.

This research was also the first attempt to generate all the key landmarks that allow generation of clinically relevant cell types for cartilage regeneration with the highest animal-free standards. This means that the process did not rely on any animal components, thus therapeutic products such as stem-cell serums can be produced that are safe for humans.

Evseenko added that in a living organism more than one cell type is responsible for the complete regeneration of tissue, so in addition to the studies involving generation of articular cartilage from human stem cells, he and his team are now trying different protocols using different combinations of adult progenitor cells present in the joint to regenerate cartilage until the best one is found for therapeutic use.

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UCLA Scientists First to Track Joint Cartilage Development in Humans

Stem cell researchers from UCLA have published the first study to identify the origin cells and track the early development of human articular cartilage, providing what could be a new cell source and biological roadmap for therapies to repair cartilage defects and damage from osteoarthritis.

Such transformative therapies could reach clinical trials within three years, said the scientists from UCLA's Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research.

The study, led by Dr. Denis Evseenko, an assistant professor of orthopedic surgery and head of UCLA's Laboratory of Connective Tissue Regeneration, was published online Dec. 12 in the journal Stem Cell Reports and will appear in a forthcoming print edition.

Articular cartilage, a highly specialized tissue formed from cells called chondrocytes, protects the bones of joints from forces associated with load-bearing and impact and allows nearly frictionless motion between the articular surfaces - the areas where bone connects with other bones in a joint.

Cartilage injury and a lack of cartilage regeneration often lead to osteoarthritis, which involves the degradation of joints, including cartilage and bone. Osteoarthritis currently affects more than 20 million people in the U.S., making joint-surface restoration a major priority in modern medicine.

While scientists have studied the ability of different cell types to generate articular cartilage, none of the current cell-based repair strategies - including expanded articular chondrocytes or mesenchymal stromal cells from adult bone marrow, adipose tissue, sinovium or amniotic fluid - have generated long-lasting articular cartilage tissue in the laboratory.

For the current study, Evseenko and his colleagues used complex molecular biology techniques to determine which cells grown from embryonic stem cells, which can become any cell type in the body, were the progenitors of cartilage cells, or chondrocytes. They then tested and confirmed the growth of these progenitor cells into cartilage cells and monitored their growth progress, observing and recording important genetic features, or landmarks, that indicated the growth stages of these cells as they developed into the cartilage cells.

By bridging developmental biology and tissue engineering, Evseenko's discoveries represent a critical "missing link," providing scientists with checkpoints to tell if the cartilage cells are developing correctly.

"We began with three questions about cartilage development," Evseenko said. "We wanted to know the key molecular mechanisms, the key cell populations and the developmental stages in humans. We carefully studied how the chondrocytes developed, watching not only their genes but other biological markers that will allow us to apply the system for the improvement of current stem cell-based therapeutic approaches."

The research was also the first to employ the highest animal-free standards in attempting to generate all the key landmarks that allow the development of cell types that could be used in treatments to regrow damaged human cartilage. Stem cells are often grown using animal-based components, which help the stem cells flourish and grow, but such components can lead to unwanted variations and contamination. Evseenko's research process did not rely on any animal components, thus allowing for the potential production of therapies, such as stem cell serums, that are safe for humans.

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Scientists first to track joint cartilage development

Worcester, MA (PRWEB) December 10, 2013

Tanja Dominko, DVM, PhD, associate professor of biology and biotechnology at Worcester Polytechnic Institute (WPI), is the 2013 Slovenian Ambassador of Science, a national award given to one Slovenian native each year in recognition of outstanding achievements and global scientific impact. The award also honors Dominko's international engagement in developing programs that bring together WPI students and faculty members with Slovenian colleagues to address important biomedical challenges.

Slovenian President Borut Pahor presided at the awards ceremony on Nov. 22, 2013, in the city of Maribor, where Dominko joined nine other scientists and engineers who received national awards for a range of accomplishments. At the event, President Pahor spoke of the vital need to support scientific research and education on a global basis to help improve the human conditiona message that Dominko says resonates deeply with her personal and professional goals to discover and translate new knowledge of human physiology to help cure disease.

"When I learned that I was selected, it was a special moment," she said. "Knowing that after working in the United States for 23 years, that the people of my homeland recognized the value of what we have been doing here gave me a sweet feeling inside. What is most important, though, is the work we are continuing to do, both here at WPI and at the University of Nova Gorica in Slovenia, to help make regenerative cell therapies a reality for all people, regardless of where they live or their ability to pay for treatment."

In a written statement congratulating Dominko for her award, Dr. Boo Cerar, Slovenian Ambassador to the United States, said, "I wish to express my sincere compliments for your outstanding work in the area of stem cell research, regenerative medicine, and tissue engineering, moreover for your valuable role in promoting education and awareness about the fields, both in Slovenia and in the United States."

Dominko is globally recognized for her research in stem cell biology and regenerative medicine. Her work has spanned embryonic transfer, cloning through somatic cell nuclear transfer, and the basic science of early embryogenesis. She is currently at the forefront of the science of cellular reprograming, exploring how mature human skin cells can be coaxed to become more like stem cells able to recapitulate damaged tissues throughout the body.

"This is wonderful recognition for an important body of work and for Tanjas ongoing commitment to advance science and education," said Karen Kashmanian Oates, Peterson Family Dean of Arts and Sciences at WPI. "Through her efforts, Tanja not only honors her homeland, but brings honor to WPI and the faculty and students who work with her. Tanjas engagement of science across borders has created informal, yet essential, networks of science diplomacy. We look forward to the exciting work that will come from these collaborations."

After earning an MS in large animal reproduction and obstetrics and a doctor of veterinary medicine degree from the University of Ljubljana in Slovenia, Dominko came to the United States in 1990 to enroll in a graduate program at the University of Wisconsin-Madison. There she earned a PhD in endocrinology and reproductive physiology, working in the lab next door to Professor Jamie Thomson, who made history by isolating the first embryonic stem cells, initially from primates and then from humans.

"I have always been interested in reproductive physiology, and when I was at Madison two important things happened that shaped my career," Dominko says. "First, there were the discoveries by Jamie Thomson. Then, two of my friends, Ian Wilmut and the late Keith Campbell in the UK, successfully cloned the sheep Dolly. So I guess it was a case of being in the right place at the right time, to be connected with these people, and then to be able to move my work into the area of stem cell biology, cloning, and ultimately regenerative cellular therapies."

After a postdoctoral fellowship at Madison, and another in the lab of Gerald Schatten, PhD, at the Oregon Health Sciences University in Portland, Dominko was recruited to Worcester for a senior research position at Advanced Cell Technology Inc. She came to WPI in 2006 as an assistant research professor and CEO of a start-up company she founded called CellThera, which moved into WPIs Bioengineering Institute. In 2008 Dominko was appointed associate professor of biology and biotechnology at WPI; she received tenure in 2012.

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Worcester Polytechnic Institute’s Tanja Dominko Named Slovenian Ambassador of Science for 2013

Durham, NC (PRWEB) December 04, 2013

A new study appearing in STEM CELLS Translational Medicine (SCTM) demonstrates the potential of a subset of stem cell called CD34+ in treating hard to heal bone fractures.

While most patients recover from broken bones with little or no complication, up to 10 percent experience fractures that wont heal. This can lead to a number of debilitating side effects, from infection to bone loss, and it can require extensive treatment involving multiple operations and prolonged hospitalization as well as long-term disability.

Regenerating broken bone using stem cells could offer an answer. Adult human peripheral blood CD34+ cells have been shown to contain an abundance of a type of stem cell called endothelial progenitor cells (EPCs) as well as hematopoietic stem cells, which give rise to all types of blood cells. As such, they could be good candidates for this therapy.

However, while other types of stem cells had been tested for their bone regeneration potential, the ability of CD34+ to do so had never been reported on before the phase I/II clinical study was published in the current SCTM. It was conducted by researchers at Kobe University Graduate School of Medicine, led by Tomoyuki Matsumoto, M.D., and Ryosuke Kuroda, M.D., members of the universitys department of orthopedic surgery and its Institute of Biomedical Research and Innovation (IBRI).

The study was designed to evaluate the safety, feasibility and efficacy of autologous and G-CSF-mobilized CD34+ cells in patients with non-healing breaks, breaks that had not healed in nine months, in their legs. (G-CSF is a drug that releases stem cells from the bone marrow into the blood.) Seven patients were treated with the stem cells after receiving bone grafts.

Bone union was successfully achieved in every case, confirmed as early as 16.4 weeks on average after treatment, Dr. Kuroda said.

Dr. Matsumoto added, Neither deaths nor life-threatening adverse events were observed during the one year follow-up after the cell therapy. These results suggest feasibility, safety and potential effectiveness of CD34+ cell therapy in patients with nonunion.

Atsuhiko Kawamoto, MD, Ph.D., a collaborator in IBRI, said, "Our team has been conducting translational research of CD34+ cell-based vascular regeneration therapy mainly in cardiovascular diseases. This promising outcome in bone fracture opens a new gate of the bone marrow-derived stem cell application to other fields of medicine."

Although the study documents a relatively small number of patients, the results suggest the feasibility, safety and potential effectiveness of CD34+ cell therapy in patients with non-healing breaks, said Anthony Atala, M.D., editor of STEM CELLS Translational Medicine and director of the Wake Forest Institute for Regenerative Medicine.

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Hard to heal bone fractures could benefit from CD34+ stem cell ...

Frederick, MD (PRWEB) November 28, 2013

Dr. Jon Rowley and Dr. Uplaksh Kumar, Co-Founders of RoosterBio, Inc., a newly formed biotech startup located in Frederick, are paving the way for even more innovation in the rapidly growing fields of Synthetic Biology and Regenerative Medicine. Synthetic Biology combines engineering principles with basic science to build biological products, including regenerative medicines and cellular therapies. Regenerative medicine is a broad definition for innovative medical therapies that will enable the body to repair, replace, restore and regenerate damaged or diseased cells, tissues and organs. Regenerative therapies that are in clinical trials today may enable repair of damaged heart muscle following heart attack, replacement of skin for burn victims, restoration of movement after spinal cord injury, regeneration of pancreatic tissue for insulin production in diabetics and provide new treatments for Parkinsons and Alzheimers diseases, to name just a few applications.

While the potential of the field is promising, the pace of development has been slow. One main reason for this is that the living cells required for these therapies are cost-prohibitive and not supplied at volumes that support many research and product development efforts. RoosterBio will manufacture large quantities of standardized primary cells at high quality and low cost, which will quicken the pace of scientific discovery and translation to the clinic. Our goal is to accelerate the development of products that incorporate living cells by providing abundant, affordable and high quality materials to researchers that are developing and commercializing these regenerative technologies says Dr. Rowley.

RoosterBios current focus is to supply high volume research-grade cells manufactured with processes consistent with current Good Manufacturing Practices (cGMP). These cells will be used for tissue engineering research and cell-based product development. This will position RoosterBio to quickly move on to producing clinical-grade cells to be used in translational R&D and clinical studies.

We have spent almost 20 years as cell and tissue technologists and have lived with the pain of needing to generate large amounts of cells for experiments this whole time. RoosterBio was founded to address this problem for cell and tissue engineers, saving them time and money, and accelerating their path to the clinic, says Dr. Rowley. RoosterBio will supply cells, starting with adult human bone marrow-derived stem cells, at volumes that will allow for a more rapid pace of experimentation in the lab.

We will also offer paired media that has been engineered to quickly and efficiently expand the supplied cells to hundreds of millions or billions of cells within 1-2 weeks, something that would take 4-8 weeks using cell and media systems currently on the market, adds Dr. Kumar. We aim to usher in a new era of productivity to the field, and we believe that our products will at least triple the efficiency of the average laboratory.

RoosterBio, Inc. is located in the Frederick Innovative Technology Center on Metropolitan Court in Frederick. Dr. Rowley entered into the incubation program in October of this year, and already gained four full time employees, and has several academic and industrial collaborators lined up. This team has made remarkable progress and are already poised for their official product launch for their human bone marrow-derived Mesenchymal Stem Cells (hBM-MSC), anticipated in March 2014.

RoosterBios product formats have been extraordinarily well received by the market, and RoosterBio has already secured customers who are anxiously awaiting their product launch. "I am excited to see that someone is taking on the challenge of providing a sufficient number of MSCs to immediately start experiments upon their receipt. This saves us several weeks of time upfront waiting for cells to expand to volumes that allow us to begin experiments, says Todd McDevitt, Director of the Stem Cell Engineering Center at the Georgia Institute of Technology. For tissue engineering folks like myself, this means we can focus our time on high priority research questions and not spend the majority of our time performing routine cell culture."

The Tissue Engineering and Regenerative Medicine industry is one of the fastest growing in the life science sector with the total expenditure in 2011 at $17.1 billion. This number is expected to increase in 2020 to $40.5 billion. The sales of stem cell products accounted for $1.38 billion in 2010 and is expected to reach $3.9 billion by the year 2014 and $8 billion in annual revenues by 2020.

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Startup to Strengthen Synthetic Biology and Regenerative ...

T he International Cellular Medicine Society (ICMS) is an international non-profit dedicated to patient safety through strict evaluation of protocols and rigorous oversight of clinics and facilities engaged in the translation of point-of-care cell-based treatments.As a Professional Medical Association, the ICMS represents Physiciansand Researchersfrom over 35 countries who share a mission to provide Scientifically Credible and Medically Appropriate Treatments to Informed Patients.Join the ICMS.

The ICMS Works Tirelessly for the Clincial Translation of Field of Cell-Based Point-of-Care Treatments through:

Comprehensive Medical Standards and Best Practice Guidelines for Cell Based Medicine,

Strict Evaluation and Rigerous Oversight of Stem Cell Clinics and Facilities through aGlobal Accreditation Process,

Physician Education through daily updates on the latest Research on Stem Cells, the monthly Currents In Stem Cell Medicine and the annual International Congress for Regenerative and Stem Cell Medicine.

Join the ICMSto receive the latest news and research from cell-based medicne, including the bi-monthly publication, Currents in Stem Cell Medicine.

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ICMS International Cell Medicine Society

The Journal of Stem cells and Regenerative Medicine (JSRM) is a fully free access exclusive Online Journal covering areas of Basic Research, Translational work and Clinical studies in the specialty of Stem Cells and Regenerative Medicine including allied specialities such as Biomaterials and Nano technology relevant to the core subject. This has also been endorsed by the German Society for Stem Cell Research(GSZ).

The JSRM issues are published regularly and articles pertaining to Stem cells and Regenerative Medicine as well as related fields of research are considered for publication

This Online Journal conceived and run by Clinicians and Scientists, originally started for the student community with reputed members in the advisory/editorial boards, has now been accepted to be the official organ of GSZ is reaching millions of Researchers, Cliniciansand Students all over the world, as it is a FREE Journal

Current activities of JSRM

1. Journal issues: will be published online and to subscribers (FREE) extracts will be sent by email 2. Weekly updates on happenings in the Stem Cell World with email updates to subscribers.

NEWS

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Journal of Stem cells & Regenerative Medicine; JSRM- ISSN Number ...

Two organizations of Filipino medical practitioners - the Philippine Medical Association (PMA) and the Philippine Society for Stem Cell Medicine (PSSCM) - are partnering to come up with ideas to help professionalize and organize the practice of stem cell therapy in the Philippines during their 1st Midyear Convention at the Historic Landmark Manila Hotel on August 12-13, 2013.

With the theme ''Current Status of the Practice of Stem Cell Therapy in the Philippines,'' the convention is expected to take up various issues surrounding stem cell therapy, which, despite the controversies, is increasingly becoming popular for treatment of certain illnesses. Among the scheduled topics for discussion in the convention are Food and Drug Administration Circular on Stem Cell Products, DOH Stem Cell Guidelines, Current Trends on Stem Cell Therapy, Clinical Use of Autologous, Adipose Derived Stem Cells, Photo-Activated Platelet-Rich Plasma for Orthopedic and Rehabilitation Applications, Umbilical Cord Blood and Cord Tissue for Stem Cell Therapy, Stem Cell Therapy in the Philippines other than for Cancer Rejuvenation, and Quality Control in Cell Transplantation.

Administrative Order 2013-0012 issued by the Department of Health (DOH) rules on the practice of stem cell, cell-based therapy, and accreditation of health facilities engaging in the treatment in the Philippines. The Professional Regulation Commission Board of Medicine (PRCBOM) requires foreign doctors wishing to practice stem cell therapy in the country to get a special temporary permit, citing their education, training, and clinical experience.

The PMA, the country's premier medical organization, has 70,000 members in 118 component medical societies, eight specialty divisions, 73 specialty and subspecialty societies, and 39 affiliate societies all over the archipelago, who advocate professional advancement and promote public health. The newly founded PSSCM is composed of physicians doing stem cell therapy and transplant. It is working closely with DOH, PRCBOM, and PMA to regulate the practice of Stem Cell therapy and protect patients.

We congratulate the Philippine Medical Association, headed by its President Dr. Leo O. Olarte, and the Philippine Society for Stem Cell Medicine, led by Dr. Rey Melchor F. Santos, in their coordinative efforts to educate and inform the public on the status of stem cell treatment as a novel medical approach in the Republic of the Philippines. CONGRATULATIONS AND MABUHAY!

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Editorial: Philippine Society for Stem Cell Medicine and Philippine Medical Association 1st Midyear Convention to be ...