Category Archives: Mesenchymal Stem Cells

Researchers have isolated egg-producing stem cells from the ovaries of reproductive age women and shown these can produce what appear to be normal egg cells or oocytes, according to a new study. The discovery "opens the door for development of unprecedented technologies to overcome infertility in women" according to the scientist who led the study. Jonathan Tilly, of Massachusetts General Hospital in the United States, said: "The primary objective of the current study was to prove that oocyte-producing stem cells do in fact exist in the ovaries of women during reproductive life, which we feel this study demonstrates very clearly." The researchers developed a precise cell-sorting technique to isolate oocyte producing stem cells (OSCs) without contamination from other cells, according to an article in the March issue of Nature Medicine. The cells were able, in the laboratory, to form cells spontaneously with characteristic features of oocytes. Further experiments on mice showed such eggs could be fertilised. Dr Tilly's team is exploring potential clinical applications from its findings which include the establishment of human OSC banks - since these cells, unlike human oocytes, can be frozen and thawed without damage - and the development of mature human oocytes from OSCs for … Continue reading →

By Carolyn Y. Johnson, Globe Staff Massachusetts General Hospital researchers reported today they have discovered a rare stem cell in women’s ovaries that they hope one day might be used to make eggs, a claim already generating vigorous debate among scientists familiar with the research. For decades, it has been thought that women are born with a finite supply of eggs, limiting their reproductive years. Doctors have sought ways of extending the fertility of women, especially as many wait later in life to begin having children. The research, led by Jonathan Tilly of Mass. General and appearing in the journal Nature Medicine, opens the door to the possibility of taking tissue from a woman’s ovaries, harvesting stem cells from that tissue, and then creating eggs. But scientists not involved with the Mass. General research said such an approach -- if it is even possible -- sits far in the future and will require considerably more work. Several scientists said Tilly, who co-founded a company focused on developing novel infertility treatments, had not yet made a convincing case that the stem cells he discovered can yield viable eggs, a critical first step. Tilly has been a lightning rod in the field … Continue reading →

SUNDAY, Feb. 26 (HealthDay News) -- Researchers report that they've isolated stem cells from adult human ovaries that can mature into eggs that may be capable of fertilization. The lab findings, which upend longstanding scientific theory, could potentially lead to new reproductive technologies and possibly extend the years of a woman's fertility. It was long believed that women were born with a lifetime supply of eggs, which was depleted by menopause. But a growing body of research -- including a new paper from Massachusetts General Hospital -- suggests egg production may continue into adulthood. The study is published in the March issue of Nature Medicine. "Fifty years of thinking, in every aspect of experiments, of interpreting the results, and of the clinical management of ovarian function and fertility in women was dictated by one simple belief that turns out to be incorrect," said lead study author Jonathan Tilly, director of the hospital's Vincent Center for Reproductive Biology. "That belief was the egg cell pool endowed at birth is a fixed entity that cannot be renewed." Dr. Avner Hershlag, chief of the Center for Human Reproduction at North Shore-LIJ Health System in Manhasset, N.Y., said the study is "exciting" but emphasized … Continue reading →

Bar Harbor – Yijun Ruan, Ph.D., an American geneticist who has pioneered new techniques to sequence and map DNA to better understand cancer growth and stem cell properties, will be the first scientist to join the new Jackson Laboratory for Genomic Medicine (JAX Genomic Medicine) in Farmington, Conn. Ruan is currently associate director and senior group leader at the Genome Institute of Singapore and professor of biochemistry at the National University of Singapore. He is also an investigator with the Encyclopedia of DNA Elements (ENCODE) project, an international consortium of research groups funded by the National Human Genome Research Institute. Ruan said he was attracted by The Jackson Laboratory’s famously collaborative research environment, and plans to “take a community approach to tackle genomic questions through intensive collaboration.” Through innovating new technologies and studying how the human and mouse genomes are regulated, he said his goal is to translate research findings into personalized medicine. Ruan has also been appointed director of JAX Genomic Sciences, and will be bringing his current research program and team with him to JAX Genomic Medicine. JAX Genomic Medicine will unite doctors, patients, scientists and industry to find new ways to tailor disease diagnosis, prevention and treatment … Continue reading →

LOS ANGELES, CA--(Marketwire -02/24/12)- A2Z Health Expo today announced it will hold its 5th annual Health Expo at the Skirball Cultural Center in Los Angeles, CA on Thursday, March 22, 2012 from 4pm to 10pm. According to Dr. Ben Drillings, Director, the keynote speaker for the event will be the co-founder of the Samueli Foundation, Susan Samueli, PhD. Mrs. Samueli serves on the Board and Advisory Board of the Susan Samueli Center for Integrated Medicine (SSCIM) at UC Irvine. SSCIM promotes integrative medicine by providing education, scientific research and a model of clinical care that emphasizes healing of the whole person. Mrs. Samueli was honored with the UCI Medal in March 2000, the 2002 Ellen Cooperman Angel Award Recipient from the John Wayne Cancer Institute and the 2005 General William Lyon Crystal Vision Philanthropy Award from the Orangewood Children's Foundation. In 2006, Susan and Henry Samueli became the owners of the NHL franchise the Anaheim Ducks. The topic of Mrs. Samueli at the expo is: "Integrated Clinic in the 21st Century: Innovations, New Models & Challenges." The A2Z Health Expo event is focusing on bringing together healthcare professionals, philanthropists, academicians, that are interested in learning more about the integrated clinic … Continue reading →

GeneCell International Launches Educational Cord Blood Workshops for South Florida Expecting Parents Miami, FL. (PRWEB) February 24, 2012 GeneCell International, a cutting-edge South Florida provider in the processing and cryogenic preservation of umbilical cord blood stem cells, announced today it would commence monthly cord blood workshops to advance the education in the community. GeneCell International specializes in the collection, transport, processing and cryogenic storage of adult stem cells from various sources including; umbilical cord blood, dental pulp and adipose tissue (fat) that can later be used to treat a variety of diseases. The laboratory is also involved in scientific research and development with a range of stem cells from various adult tissues. Umbilical cord blood preservation is a process by which blood is collected from the umbilical cord of a newborn baby and is stored cryogenically in a specially-designated bank. According to the National Marrow Donor Program, cord blood contains cells that can be transfused to a patient to treat various diseases, including lymphoma and leukemia. The list of illnesses that can be treated with cord blood continues to grow. In addition, the cord blood can be used to treat the child from whom the blood was collected as well … Continue reading →

Newswise — The International Society for Stem Cell Research (ISSCR) is pleased to announce the winner of the 2012 McEwen Award for Innovation, a coveted prize in the field of stem cell research and regenerative medicine. The 2012 recipient is Rudolf Jaenisch, MD, Founding Member of the Whitehead Institute for Biomedical Research and Professor of Biology at the Massachusetts Institute of Technology in recognition of his pioneering discoveries in the areas of genetic and epigenetic control of development in mice that directly impact the future potential of embryonic stem cells and induced pluripotent stem cells for therapeutic utility. The McEwen Award for Innovation is supported by the McEwen Centre for Regenerative Medicine in Toronto, Ontario, Canada. The $100,000 award honors original thinking and groundbreaking research pertaining to stem cells or regenerative medicine that opens new avenues of exploration towards the understanding or treatment of human disease or affliction. “Rudolf Jaenisch has consistently contributed new and groundbreaking discoveries to stem cell biology and regenerative medicines that have changed the way stem cell research is conducted, said Fred H. Gage, PhD, ISSCR President. “Importantly, Rudolf not only has an uncanny sense of the next big question, but also conducts his experiments with … Continue reading →

Bioethicists debate how to remain impartial as a bioethics journal editor joins a company that peddles unproven stem cell therapies. By Sabrina Richards | February 22, 2012 Bioethicists are debating how, or even whether, one can remain impartial when working for industry as Glenn McGee, founder and editor of the American Journal of Bioethics, joins CellTex, a company that banks patients’ cells for untested stem cell therapies, reported Nature. McGee, who joined CellTex in December of last year and will step down from AJOB on March 1, says he hopes to bring ethical standards to CellTex’s stem cell trials. CellTex licenses therapies from RNL Bio, a South Korea-based company that converts patients’ fat cells into patient-specific mesenchymal stem cells, which the company claims can be reinjected to treat conditions like spinal cord injury. To date, no clinical trials have been completed that back these claims. Though criticism has been leveled at McGee for joining CellTex while remaining at AJOB, observers also wonder whether bioethicists can work in industry at all. McGee has argued that bioethicists have a place in industry, thereby helping bioethics to have a practical purpose. Others, such as Insoo Hyun, a stem-cell bioethicist at Case Western Reserve … Continue reading →

ATLANTA, GA--(Marketwire -02/21/12)- VistaGen Therapeutics, Inc. (OTC.BB: VSTA.OB - News) (OTCQB: VSTA.OB - News), a biotechnology company applying stem cell technology for drug rescue and cell therapy, has retained MissionIR, a national investor relations consulting firm, to develop and implement a strategic investor relations campaign. Through a network of investor-oriented online websites and full suite of investor awareness services, MissionIR broadens the influence of publicly traded companies and enhances their ability to attract growth capital and improve shareholder value. "VistaGen's work with human stem cell technology is groundbreaking," said Sherri Snyder, Director of Marketing at MissionIR. "The company's versatile platform, Human Clinical Trials in a Test Tube™, provides clinically relevant predictions of potential heart toxicity of new drug candidates long before they are ever tested on humans. Guided by a management team with decades of experience, VistaGen's stem cell technology can potentially save billions of dollars in the healthcare industry while recapturing prior R&D investment in once-promising new drug candidates." "We are pleased to bring MissionIR on board as our external investor relations partner," said Shawn Singh, VistaGen's Chief Executive Officer. "The crucial work our company is doing can fundamentally change the way medicine is developed. Paired with MissionIR's global … Continue reading →

Bioethicist Glenn McGee’s new job raised questions of conflict of interest at the journal he founded. J. WILSON/KRT/NEWSCOM The field of bioethics is embroiled in a period of soul-searching, sparked by a startling career move by one of its biggest names. Glenn McGee is the editor-in-chief of the American Journal of Bioethics (AJOB), the most cited bioethics journal, which he founded in 1999. Since December 2011, he has also been president for ethics and strategic initiatives at CellTex Therapeutics in Houston, Texas, a controversial company involved in providing customers with unproven stem-cell therapies. A CellTex press release says that “Dr McGee’s responsibilities will include ensuring that all of the firm’s work, centered on adult stem cells, will meet the highest ethical standards of the medical and scientific communities.” Although McGee has said he will leave the journal on 1 March, many bioethicists have criticized him, the journal’s editorial board and its publisher, London-based Taylor and Francis. They argue that in holding both posts, McGee has a conflict of interest between his responsibilities to the journal and his new employer’s desire to promote the clinical application of stem-cell treatments that are not approved by the US Food and Drug Administration. “Imagine … Continue reading →