Stem Cells News and Research

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Stem cells have the remarkable potential to develop into many different cell types in the body during early life and growth. In addition, in many tissues they serve as a sort of internal repair system, dividing essentially without limit to replenish other cells as long as the person or animal is still alive. When a stem cell divides, each new cell has the potential either to remain a stem cell or become another type of cell with a more specialized function, such as a muscle cell, a red blood cell, or a brain cell.

Researchers reveal ambivalent role of CXCL12/CXCR4 molecule in myocardial infarction

The chemokine CXCL12 acts as a chemical signal which mobilizes hematopoietic and other types of stem cells to leave the bone marrow and enter the circulation. Secretion of CXCL12 also guides these cells to sites at which the perfusion of tissue is sub-optimal due to localized obstruction of blood flow. These capabilities have made CXCL12 and its cognate receptor CXCR4 interesting candidates for therapies aimed at mitigating the effects of damage to the heart caused by myocardial infarction.

1 Dec 2011

Immune system stimulant used as suppressor to treat chronic graft-versus-host disease

In a study that seems to pivot on a paradox, scientists at Dana-Farber Cancer Institute have used an immune system stimulant as an immune system suppressor to treat a common, often debilitating side effect of donor stem cell transplantation in cancer patients. The effect, in some cases, was profound.

1 Dec 2011

Joslin study uncovers potential targets for soft-tissue sarcomas

Scientists at Joslin Diabetes Center in Boston have uncovered important molecular and genetic keys to the development of soft-tissue sarcomas in skeletal muscle, giving researchers and clinicians additional targets to stop the growth of these often deadly tumors.

30 Nov 2011

ACGME approves Cedars-Sinai's neurology residency training program

The Accreditation Council for Graduate Medical Education has approved a neurology residency training program at Cedars-Sinai Medical Center. Recruitment of the first group of three residents is under way through the 2012 "match," a process in which an independent organization pairs applicants with programs to meet the preferences of each.

30 Nov 2011

Affymetrix signs definitive agreement to acquire eBioscience

Affymetrix, Inc., today announced that it has signed a definitive agreement to acquire eBioscience, Inc., a privately-held San Diego, CA-based company with an industry-leading position in flow cytometry and immunoassay reagents for immunology and oncology research and diagnostics. Under the terms of the agreement, Affymetrix will acquire eBioscience for $330 million in cash subject to certain customary adjustments.

30 Nov 2011

Scientists regenerate functional muscle tissue in mice

A team of scientists from Worcester Polytechnic Institute (WPI) and CellThera, a private company located in WPI's Life Sciences and Bioengineering Center, have regenerated functional muscle tissue in mice, opening the door for a new clinical therapy to treat people who suffer major muscle trauma.

30 Nov 2011

Scientists create genetically-altered neurons that light up as they fire

In a scientific first that potentially could shed new light on how signals travel in the brain, how learning alters neural pathways, and might lead to speedier drug development, scientists at Harvard have created genetically-altered neurons that light up as they fire.

30 Nov 2011

Largest survey on genetic, epigenetic stability of stem cells

An international study, published today in the prestigious journal Nature Biotechnology, reveals more about human pluripotent stem cells and their genetic stability and has important implications for the development of therapies using these cells.

29 Nov 2011

Blood stem cells engineered to create cancer-killing T-cells

Researchers from UCLA's cancer and stem cell centers have demonstrated for the first time that blood stem cells can be engineered to create cancer-killing T-cells that seek out and attack a human melanoma. The researchers believe this approach could be useful in 40 percent of Caucasians with this malignancy.

29 Nov 2011

NIH awards $3.2M for development of highly efficient system of generating nucleic acid molecules

The National Institutes of Health (NIH) has awarded $3.2 million to a team of preeminent engineering, chemistry, and biology researchers to develop a highly efficient system of generating nucleic acid molecules, called aptamers.

29 Nov 2011

Bacterin to distribute Jeil's LeForte craniomaxillofacial system in the U.S. and Canada

Bacterin International Holdings, Inc., a leader in the development of revolutionary bone graft material and antimicrobial coatings for medical applications, signed an exclusive agreement with Jeil Medical Corporation for distribution in the U.S. and Canada of Jeil's LeForte System.

28 Nov 2011

Rare syndrome's workings could help explain how brain wiring goes awry

Potential clues to how autism miswires the brain are emerging from a study of a rare, purely genetic form of the disorders that affects fewer than 20 people worldwide. Using cutting-edge "disease-in a-dish" technology, researchers funded by the National Institutes of Health have grown patients' skin cells into neurons to discover what goes wrong in the brain in Timothy Syndrome.

28 Nov 2011

Most people with Timothy syndrome mutation have autistic symptoms

Neuroscientists at Stanford University School of Medicine have homed in on potential differences in autistic people's brain cells by studying brainlike spheres grown in an elaborate process from skin cells.

28 Nov 2011

Moleac launches NurAiD II in France and Belgium

Biopharmaceutical Company Moleac has announced the launch in France and Belgium of NurAiD II. NurAiD II is a natural health supplement engineered to stimulate neuroplasticity and recovery.

25 Nov 2011

Transplantation of new neurons into damaged area of the brain could restore brain functions

Without neurons reacting to the blood leptin level, the brain does not control the feeling of hunger and fullness. This type of genetic defects results in severe obesity in humans and animals.

25 Nov 2011

Scientists decode how Machado-Joseph disease arises

Neurodegenerative diseases represent one of the greatest challenges of our aging society. However, investigation into these diseases is made particularly difficult due to the limited availability of human brain tissue. Scientists from the Life & Brain Research Center and Neurology Clinic of Bonn University have now taken a roundabout path: They reprogrammed skin cells from patients with a hereditary movement disorder into so-called induced pluripotent stem cells (iPS cells) and obtained functional nerve cells from them.

24 Nov 2011

B-type lamins are necessary for proper organ development

Scientists have long held theories about the importance of proteins called B-type lamins in the process of embryonic stem cells replicating and differentiating into different varieties of cells. New research from a team led by Carnegie's Yixian Zheng indicates that, counter to expectations, these B-type lamins are not necessary for stem cells to renew and develop, but are necessary for proper organ development.

24 Nov 2011

Carefully selected young, healthy neurons can repair brain circuitry

Neuron transplants have repaired brain circuitry and substantially normalized function in mice with a brain disorder, an advance indicating that key areas of the mammalian brain are more reparable than was widely believed.

24 Nov 2011

Transplantation of tissue-engineered windpipe can benefit patients with tracheal cancer

Tracheal tumors can be surgically removed, but most are too large for the surgery to be successful by the time they are discovered. Therefore, new therapeutic options are needed. Even in patients with operable tumors, the proportion of complete tumor resection is less than 60%. This outcome would be greatly improved if a trachea substitute with similar anatomical, physiological and biomechanical properties of the patient's original trachea were available.

24 Nov 2011

Combination of radiation treatment and LY2109761 can prevent glioblastoma

Glioblastoma is regarded as the most malignant form of brain tumor. In many cases, neurosurgeons are not able to remove such tumors completely because of the risk of destroying too much brain tissue in the process. Moreover, it is often impossible to identify all the fine extensions by which the tumor spreads into surrounding healthy tissue. To at least slow down the growth of tumor cells that have remained in the head, almost all glioblastoma patients are treated by radiotherapy after surgery.

24 Nov 2011