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.

Mesoblast receives FDA clearance for heart attack stem cell trial

Australia's adult stem cell company, Mesoblast Limited has announced that the United States Food and Drug Administration (US FDA) has cleared the Investigational New Drug Submission (IND) of its US-based sister company, Angioblast Systems Inc., to commence a Phase 2 clinical trial of its allogeneic, or 'off-the-shelf', adult stem cells for patients with heart attacks.

4 May 2007

U.S. Supreme Court decision boosts stem cell patent challenge

A U.S. Supreme Court decision in favor of KSR International Corp. on Monday strengthens challenges against overreaching human embryonic stem cell patents held by an affiliate of the University of Wisconsin, the Foundation for Taxpayer and Consumer Rights (FTCR) and the Public Patent Foundation (PUBPAT) said.

2 May 2007

Unstable leukemia stem cells may predispose patients to drug resistance

The BCR-ABL gene in chronic myeloid leukemia stem cells has a tendency to quickly mutate, and this may help explain why patients are predisposed to resistance to drugs like imatinib that target that gene, according to a study in the May 2 Journal of the National Cancer Institute.

2 May 2007

Lawmakers have proposed 'witch's brew' of biotech bills

Lawmakers in recent months "have stirred up a witch's brew of initiatives that is cause for some concern -- not only for the biotech industry, but for all Americans," James Mullen, president and CEO of Biogen and chair of the Biotechnology Industry Organization, writes in a Wall Street Journal opinion piece.

1 May 2007

Smelling for first time results from knowing abnormalities in congenital loss of smell

New discoveries about the biochemical basis of the majority of cases of the congenital inability to smell any odor, no matter how strong, have enabled their discoverer, Dr. Robert I. Henkin, director of The Taste and Smell Clinic in Washington, DC, to treat such patients, enabling them to smell something for the first time in their lives.

1 May 2007

Zorro-LNA stops genetic disorders in their tracks

A study to appear in the June 2007 issue of The FASEB Journal describes a new agent, called "Zorro-LNA," which has the potential to stop genetic disorders in their tracks.

1 May 2007

Democratic Presidential candidates discuss abortion rights

Eight candidates for the Democratic presidential nomination on Thursday in a debate at South Carolina State University "uniformly criticized" the U.S. Supreme Court's decision last week to uphold a federal law (S 3) banning so-called "partial-birth" abortion, the Washington Post reports (Balz, Washington Post , 4/27).

30 Apr 2007

Discovery of backup stem cells that can repair damage to olfactory nerves

Hopkins researchers have identified a backup supply of stem cells that can repair the most severe damage to the nerves responsible for our sense of smell.

30 Apr 2007

The convergence of embryonic and cancer signaling pathways: role in tumor cell plasticity

In earlier work, Northwestern University scientist Mary J.C. Hendrix and colleagues discovered that aggressive melanoma cells (but not normal skin cells nor less aggressive melanoma cells) contain specific proteins similar to those found in embryonic stem cells.

30 Apr 2007

New understanding of how histone and DNA methylation communicate

In the May 15th issue of G&D, Dr. Michael Carey (UCLA's Jonsson Comprehensive Cancer Center) and colleagues lend new insight into the mechanism of epigenetic silencing of euchromatic genes.

30 Apr 2007

Small amounts of stem/progenitor cells from bone marrow enhance repair of damaged tissues

New studies in the laboratory of Dr. Darwin J. Prockop, Director of Tulane University's Center for Gene Therapy, are shedding light on the previously mysterious mechanism through which even relatively small amounts of stem/progenitor cells taken from a patient's own bone marrow enhance repair of damaged tissues.

30 Apr 2007

Scientists identify key mechanism for successfully transplanting tissue into the adult central nervous system

Scientists at the Schepens Eye Research Institute, an affiliate of Harvard Medical School, have identified a key mechanism for successfully transplanting tissue into the adult central nervous system.

27 Apr 2007

New gene discovered in human stem cells may benefit transplant patients

Oxford scientists have revealed a link between a gene and the activity of human blood stem cells, giving hope that stem cell transplant success for blood cancer patients may be significantly improved.

27 Apr 2007

World's first microRNA knockout mouse

A role for a microRNA in the immune system has been shown by study of one of the world's first microRNA knockout mouse, reported in Science.

27 Apr 2007

Many couples choose to donate surplus embryos for stem cell research

Nearly 50% of couples who were interviewed at least 3 years after undergoing in vitro fertilization (IVF) chose to donate their surplus, stored embryos for stem cell research, according to a report by the Spanish Stem Cell Bank in an April 26, 2007, advanced online publication of Cell Stem Cell, a new publication of Cell Press in affiliation with the International Society for Stem Cell Research.

27 Apr 2007