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.

Scientists create first functional stem-cell niche model

Like it or not, your living room probably says a lot about you. Given a few uninterrupted moments to poke around, a stranger could probably get a pretty good idea of your likes and dislikes, and maybe even your future plans.

10 Dec 2008

Potential breakthrough for T-cell lymphoma

Preliminary results of a pivotal Phase 2 clinical trial of pralatrexate (PDX), a drug that partially works by mimicking folic acid, showed a complete or partial response in 27 percent of patients with recurrent or resistant peripheral T-cell lymphoma (PTCL).

10 Dec 2008

Intense chemo wards off recurrence in half of mantle cell lymphoma patients after seven years

More than half of younger mantle cell lymphoma patients who received an intensive regimen of chemotherapy as frontline treatment remain in remission seven years later, researchers at The University of Texas M. D. Anderson Cancer Center report today at the 50th annual meeting of the American Society of Hematology.

10 Dec 2008

Researchers discover why Gleevec-type drugs control, but do not eradicate leukemia

Oregon Health & Science University Knight Cancer Institute researchers are closer to understanding why certain chronic myeloid leukemia mutations are not stopped by the revolutionary targeted cancer pill, Gleevec, or similar therapies in that drug family.

8 Dec 2008

Lenalidomide safe for elderly patients with chronic lymphocytic leukemia

The oral medication lenalidomide is safe and well-tolerated for elderly patients with chronic lymphocytic leukemia, a group without a well-defined frontline therapy for their disease, researchers from The University of Texas M. D. Anderson Cancer Center reported today at the 50th annual meeting of the American Society of Hematology.

8 Dec 2008

Light cigarettes may be more toxic than traditional cigarettes

Typically, tobacco companies market harm-reduction cigarettes as being safer than traditional "full-flavored" brands, leading many smokers to conclude that the use of harm-reduction brands lowers their exposure to toxicants.

8 Dec 2008

Genetic signature may lead to better treatments for pediatric liver cancers

Scientists have identified a genetic signature that is remarkably effective at predicting the prognosis of an aggressive liver cancer in children.

8 Dec 2008

Trial shows safety of pre-transplant expansion of umbilical cord blood stem cells

Taking blood stem cells collected from an umbilical cord into the lab and expanding their number before transplanting them to replace a patient's blood supply is as safe as a standard cord blood transplant, researchers reported at the 50th Annual Meeting of the American Society of Hematology.

8 Dec 2008

New chemotherapy pill shows promise for stubborn lymphomas

A new chemotherapy pill is showing early success in treating people with stubborn lymphomas, according to scientists at the University of Rochester Medical Center. Doctors reported that the drug is halting disease in nearly half of the patients with chronic lymphocytic leukemia, and in patients with more aggressive lymphoma as well.

8 Dec 2008

Gene therapy used to fight AIDS

The apparent success of a case in which German doctors cured a man of AIDS using a bone marrow transplant comes as no surprise to Gerhard Bauer, a UC Davis stem cell researcher.

8 Dec 2008

Hematopoietic stem cells found to reproduce more slowly than expected

Investigators from Massachusetts General Hospital (MGH) have found a subpopulation of hematopoietic stem cells, the source of all blood and immune system cells, that reproduce much more slowly than previously anticipated.

8 Dec 2008

Rituxan in combination with chemo improves survival in chronic lymphocytic leukemia

Genentech, Inc. and Biogen Idec have announced that two global Phase III studies in chronic lymphocytic leukemia (CLL), CLL8 and REACH, showed Rituxan (rituximab) plus chemotherapy significantly increased the time patients lived without their disease advancing, as defined by the primary endpoint of progression-free survival (PFS), when compared to chemotherapy alone.

8 Dec 2008

Effects of stem cell source and patient age on stem cell transplantation outcomes

Two studies examining the effects of stem cell source and patient age on stem cell transplantation outcomes were explored at a press conference on Sunday, December 7 during the 50th Annual Meeting of the American Society of Hematology in San Francisco, CA.

8 Dec 2008

Age has no impact on survival after bone marrow transplant

Age alone should not determine whether an older patient with acute myeloid leukemia or myelodysplastic syndrome receives a blood stem cell transplant from a matched donor, researchers of the Center for International Blood and Marrow Transplant Research reported today at the 50th annual meeting of the American Society of Hematology.

8 Dec 2008

Novel therapeutic approaches for various forms of thrombocytopenia

Four studies that highlight significant advances in treatment and survival outcomes for patients with various forms of thrombocytopenia, a group of bleeding disorders characterized by a low number of platelets in the blood, were presented December 6 during the 50th Annual Meeting of the American Society of Hematology in San Francisco, CA.

8 Dec 2008

Dismissed leukemia drug flavopiridol helps chronic lymphocytic leukemia patients

A drug once dismissed as ineffective in patients with chronic lymphocytic leukemia (CLL) has shown promising results in two phase I and II clinical trials, according to researchers at The Ohio State University Comprehensive Cancer Center - James Cancer Hospital and Solove Research Institute.

8 Dec 2008

Allos Therapeutics announces results from phase 2 trial of Pralatrexate in peripheral T-cell lymphoma

Allos Therapeutics, Inc. has announced preliminary top line results from PROPEL, the Company's pivotal Phase 2 trial of pralatrexate (PDX) in patients with relapsed or refractory peripheral T-cell lymphoma (PTCL), at the 50th Annual Meeting of the American Society of Hematology (abstract 261).

8 Dec 2008

New insights into development of the human immune system

A UCSF study has found that a surprisingly high number of maternal cells enters the fetus during pregnancy, prompting the generation of special immune cells in the fetus that suppress a response against the mother.

5 Dec 2008

Discovery of groundbreaking technique for body to accept gene therapy

Researchers at Columbia University Medical Center and the State University of New York at Stony Brook (SUNY) have developed a groundbreaking technique to sneak therapeutic genes past the body's defenses, possibly clearing one of the largest hurdles to realizing the potentials of medically altering a patient's DNA.

5 Dec 2008

Model unravels rules that govern how genes are switched on and off

For years, scientists have struggled to decipher the genetic instruction book that details where and when the 20,000 genes in a human cell will be turned on or off.

5 Dec 2008