Medical research

Some blood cells have a surprising source—your gut

The human intestine may provide up to 10 percent of blood cells in circulation from its own reservoir of blood-forming stem cells, a surprising new study from researchers at Columbia University Vagelos College of Physicians ...

Oncology & Cancer

New stem cell therapy to improve fight against leukemia

Stem cell transplantation is effective against leukemia. In many cases, however, the transferred immune cells of the donor also attack the recipients' healthy tissue—often with fatal consequences. Researchers at the University ...

Oncology & Cancer

Extracellular vesicles could be personalized drug delivery vehicles

Creating enough nanovesicles to inexpensively serve as a drug delivery system may be as simple as putting the cells through a sieve, according to an international team of researchers who used mouse autologous—their own—immune ...

Medical research

Researchers identify new target to reduce risk of GVHD

Stem cell transplants can cure patients with high-risk leukemia or lymphoma. Graft-versus-host disease (GVHD) is a potentially life-threatening side effect that occurs when the donor's immune cells attack the recipient's ...

Medical research

Designer T cells fight viruses after transplants

Bone marrow transplants save thousands of lives but patients are vulnerable to severe viral infections in the months afterward, until their new immune system kicks in. Now scientists are developing protection for that risky ...

HIV & AIDS

2 stem cell patients stop HIV drugs, no virus seen (Update)

Two HIV-positive patients in the United States who underwent bone marrow transplants for cancer have stopped anti-retroviral therapy and still show no detectable sign of the HIV virus, researchers said Wednesday.

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