Progenitor Cells News and Research

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N-cofilin molecule protects from neuronal disorders

Many neuronal disorders, including epilepsy, schizophrenia and lissencephaly – a form of mental retardation - result from abnormal migration of nerve cells during the development of the brain.

17 Sep 2007

Living, growing artificial heart-valve replacements for children

Infants and children receiving artificial heart-valve replacements face several repeat operations as they grow, since the since the replacements become too small and must be traded for bigger ones.

13 Sep 2007

Novel mechanism discovered that balances the sizes of functional areas in the brain

In the cerebral cortex, the brain's powerful central processing unit responsible for higher functions, specialized subdivisions known as areas are laid out like a map, but little is known about the genetic forces that shape the geography of our brains.

11 Sep 2007

Tendons found to contain a small subset of previously unknown adult stem cells

Tendon, the cord-like tissue that connects muscle to bone, contains a small subset of previously unknown adult stem cells, scientists at the National Institute of Dental and Craniofacial Research (NIDCR) part of the National Institutes of Health, and their colleagues have discovered.

11 Sep 2007

Discovery of tendon cells that self-renew

Athletes know that damage to a tendon can signal an end to their professional careers. But a consortium of scientists, led in part by USC School of Dentistry researcher Songtao Shi, has identified unique cells within the adult tendon that have stem-cell characteristics - including the ability to proliferate and self-renew.

10 Sep 2007

Does physical activity provide a molecular key to longevity?

Fitness and physical exercise are among the most neglected means to improve prognosis. They are the healthiest cardiovascular intervention. Even cardiologists focus on pharmacological treatment and evaluate classical risk factors without asking about daily exercise or objective measures of physical capacity. It is surprising considering the strong data that underscores the survival benefit of regular exercise training.

2 Sep 2007

Natural protection provides possible new treatments for stroke

Two substances that occur naturally in the brain act to protect the brain during a stroke. This is the conclusion of a dissertation published at the Sahlgrenska Academy, and the discovery may lead to new treatments for stroke patients.

21 Aug 2007

HIV protein both causes brain injury and prevents its repair

New evidence reported in the August issue of Cell Stem Cell, a publication of Cell Press, offers a novel perspective on how the HIV/AIDS virus leads to learning and memory deficits, a condition known as HIV-associated dementia.

17 Aug 2007

New insights into cell division process

Which genes are passed on from mother to child is decided very early on during the maturation of the egg cell in the ovary.

12 Aug 2007

Stem cell therapy rescues motor neurons in ALS model

In a study that demonstrates the promise of cell-based therapies for diseases that have proved intractable to modern medicine, a team of scientists from the University of Wisconsin-Madison has shown it is possible to rescue the dying neurons characteristic of amyotrophic lateral sclerosis (ALS), a fatal neuromuscular disorder also known as Lou Gehrig's disease.

3 Aug 2007

Stem cell therapy rescues motor neurons in amyotrophic lateral sclerosis model

31 Jul 2007

Scientists discover protein instrumental to brain development and repair

Scientists at Children's National Medical Center have demonstrated conclusively that a specific protein and its signaling activity are instrumental in myelination and remyelination, processes essential to the creation and repair of the brain's white matter.

9 Jul 2007

DNA repair by Brca2 prevents medulloblastoma

St. Jude investigators have gained some of the first major insights into how certain genes known to prevent cancer also guide the nervous system's normal development before birth and during infancy by repairing DNA damage.

23 Jun 2007

Researchers culture blood-forming stem cells from human fat tissue

Researchers at the University of Pittsburgh School of Medicine have successfully isolated and cultured human hematopoietic stem cells from fat, or adipose, tissue, suggesting that they have found another important source of cells for reconstituting the bone marrow of patients undergoing intensive radiation therapy for blood cancers.

17 Jun 2007

Bone marrow microenvironment can contribute to blood cell disorder

Disorders of blood cells may begin in the biological environment where the cells develop, not just with the cells themselves, according to a study from researchers at the Massachusetts General Hospital (MGH) and the Peter MacCallum Cancer Center (Peter Mac) in Melbourne, Australia.

17 Jun 2007

Injected neural stem cells reduce Parkinson's symptoms in primates

Primates with severe Parkinson's disease were able to walk, move, and eat better, and had diminished tremors after being injected with human neural stem cells, a research team from Yale, Harvard, the University of Colorado, and the Burnham Institute report in Proceedings of the National Academy of Sciences.

14 Jun 2007

Researchers engineer adult stem cells derived from human umbilical cord blood to produce insulin

The researchers announced their laboratory finding, which caps nearly four years of research, in the June 2007 issue of the medical journal Cell Proliferation, posted online this week.

28 May 2007

New adult nerves have a deeper role than simply replacing dead ones

You may not be able to relive your youth, but part of your brain can. Johns Hopkins researchers have found that newly made nerves in an adult brain's learning center experience a one-month period when they are just as active as the nerves in a developing child.

24 May 2007

Brca2 gene prevents medulloblastoma

Investigators at St. Jude Children's Research Hospital have gained some of the first major insights into how certain genes known to prevent cancer also guide the normal development of the nervous system before birth and during infancy by repairing DNA damage.

22 May 2007

Researchers identify antioxidant mechanisms involved in protection against heart disease

Zvonimir Katusic, M.D., Ph.D., and Mayo colleagues have identified antioxidant mechanisms essential for regenerative function of endothelial progenitor cells (EPCs).

30 Apr 2007