“Latest Stem Cells News”

Howard Hughes Medical Institute (HHMI) scientists have discovered that endothelial cells, the building blocks of the vascular system, keep blood stem cells dividing healthily in a lab dish much longer and more effectively than previous methods of growing the cells. The new advance dramatically improves scientists’ ability to manufacture large quantities of authentic adult blood stem cells, which may help revolutionize the field of bone marrow transplantation.

Shahin Rafii, an HHMI investigator at Weill Cornell Medical College in New York City, and his colleagues report on the development of an endothelial cell platform that supports self-renewal of the blood stem cells, known as long-term hematopoietic stem cells (LT-HSCs), in the March 2010 issue of the journal Cell Stem Cell. Their study also describes a novel mechanism by which endothelial cells support propagation of LT-HSCs in adult mice.

The adult stem cell nutrition is the world’s first natural stem cell enhancer, supports the natural release of adult stem cells which, Rebuild, Renew, Rejuvenate the Body!

Numerous studies performed by various scientific teams throughout the world, including the National Institute of Health have clearly established that the higher the levels of circulating stem cells the better the ability of the body to maintain optimal health.

A recent publication in the New England Journal of Medicine reported that the level of stem cells in the blood was one of the best indicators of cardiovascular health. Elevating the number of stem cells in the blood has been shown to improve health in many ways. This stem cell nutrition supports the natural release of stem cells by 25-30%, which is bound to assist the body in maintaining optimal health.

AUGUSTA, Ga. – Medical College of Georgia researchers are conducting the first FDA-approved clinical trial to determine whether an infusion of stem cells from umbilical cord blood can improve the quality of life for children with cerebral palsy.

The study will include 40 children age 2-12 whose parents have stored cord blood at the Cord Blood Registry in Tucson, Ariz.
Umbilical cord blood is rich in stem cells, which can divide and morph into different types of cells throughout the body, said Dr. James Carroll, professor and chief of pediatric neurology in MCG School of Medicine and principal investigator on the study.

Cerebral palsy, caused by a brain injury or lack of oxygen in the brain before birth or during the first few years of life, can impair movement, learning, hearing, vision and cognitive skills. Two to 3 children in 1,000 are affected by it, according to the Centers for Disease Control.
Animal studies indicate that infused stem cells help injured brain cells recover and replace brain cells that have died, Dr. Carroll said.

U.S. researchers have found that a supplemental protein may help restore impaired mobility of people who suffer from a stroke.
Naturally occurring in humans, the protein has proved to work well in restoring motor function in rats after a stroke, according to two new studies by researchers at the University of California, Irvine (UCI).
The researchers hope that the protein will also help humans.

Administered directly to the brain, the protein restores 99 percent of lost movement; if it’s given through the nose, 70 percent of lost movement is regained. Untreated rats improve by only 30 percent.

Report of the Brain Tumor Progress Review Group (SuDoc HE 20.3502:B 73/10)

A study published this week reinforces the potential value of stem cells in repairing major injuries involving the loss of bone structure.
The study shows that delivering stem cells on a polymer scaffold to treat large areas of missing bone leads to improved bone formation and better mechanical properties compared to treatment with the scaffold alone. This type of therapeutic treatment could be a potential alternative to bone grafting operations.

“Massive bone injuries are among the most challenging problems that orthopedic surgeons face, and they are commonly seen as a result of accidents as well as in soldiers returning from war,” said the study’s lead author Robert Guldberg, a professor in Georgia Tech’s Woodruff School of Mechanical Engineering. “This study shows that there is promise in treating these injuries by delivering stem cells to the injury site. These are injuries that would not heal without significant medical intervention.” (…)

Stroke-damaged brains could be repaired within 5-10 years using adult stem cells from teeth, according to one of Australia’s leading stroke physicians who is pioneering new research in this field.

Associate Professor Simon Koblar from the University of Adelaide and The Queen Elizabeth Hospital is leading a research project that shows dental pulp stem cells extracted from teeth may prove far more beneficial for brain repair than other types of stem cells.

His research involving adult stem cells is the first of its kind in Australia and will be explained at a free public lecture at the University of Adelaide tomorrow night as part of the University’s highly successful Research Tuesdays monthly seminar series.

Stroke is the leading cause of disability in Australia, with 60,000 people suffering a stroke every year and approximately 30% of them losing their lives.

Assoc. Prof. Koblar says dental pulp stem cells have a natural ability to produce and repair neurones (nerve cells). Because they are in teeth, they can also be easily extracted and don’t pose rejection issues for patients.

In 2007 Assoc. Prof. Koblar was awarded $100,000 by the Catholic Archdiocese of Sydney for a collaborative pilot study on adult stem cells with Associate Professor Stan Gronthos from SA Pathology. Stroke SA also provided additional financial support for this project in 2009.

The two scientists are senior members of the University of Adelaide’s Centre for Stem Cell Research at the Robinson Institute.

“We have some very promising data from trials involving stroke-affected rats, who have shown an improvement in mobility when transplanted with dental pulp stem cells,” he says.

Assoc. Prof. Koblar says more research needs to be done to prove the benefit in animal models before it can be trialled in humans.

The Robinson Institute is currently working with University of Adelaide graduate and stroke victim Peter Couche to set up a Stem Cell for Stroke Foundation in his name.

“Like all research, what we can achieve will depend on how much money can be raised,” Assoc. Prof. Koblar says.

“Stem cell research has great potential to affect stroke patients and benefit the Australian community as a whole, because its impact in this country is enormous. Even if all we can do is to get someone’s hand function to improve, that would be a magnificent advance.”

An inaugural $75,000 collaborative research grant from the Centre for Stem Cell Research has been awarded to Associate Professors Koblar and Gronthos to continue their research into adult stem cell therapy for stroke patients.

from http://www.adelaide.edu.au/news/news37182.html