Sunday, June 19, 2011

Skin cancer

skin cancer treated with cloned CD4+T-cells

The first time successfully treated a skin cancer patient with cells cloned from his own immune system,the ground-breaking treatment for advanced melanoma, or skin cancer, led to a long remission for the patient and used his own cloned infection-fighting T-cells.

The melanoma was already well advanced and in stage four.
The T-cells which specifically fight melanoma were modified and expanded in the laboratory and some five billion cells were then infused into the patient, who received no other kind of treatment.
Two months later no tumors were found during scans of the patient's organs. And he has been cancer free for two years, Yee said.
"We were surprised by the anti-tumor effect of these CD4 T cells and its duration of response," Yee said. "For this patient we were successful, but we would need to confirm the effectiveness of therapy in a larger study."
It was the first ever case to show that cloned cells from a patient's own immune system can successful combat skin cancer. If further tests confirm the efficiency of the method, it could be used in some 25 percent of patients with late-stage skin cancer, the study said.
Using a patient's own immune system to combat cancer, called immunotherapy, is a growing area of research that aims to develop less-toxic cancer treatments than standard chemotherapy and radiation.
Some 160,000 cases of melanoma are diagnosed around the world every year, particularly affecting white men living in very sunny regions.
Although it usually affects the skin, in rare cases it can also infect the eyes and intestines.
According to the World Health Organization, some 48,000 people die from melanoma every year

Yee and his associates from the Clinical Research Division at Fred Hutchinson Cancer Research Center in Seattle removed
CD4+ T-cells, a type of white blood cell, from a 52-year-old man whose melanoma had spread to a groin lymph node and to one of his lungs.

Us doctors have for the first time successfully treated a skin cancer patient with cells cloned from his own immune system.


  1. Hello Dude,

    They activate and direct other immune cells. Theaeare essential in B cell antibody class switching, in the activation and growth of cytotoxic T cells and in maximizing bactericidal activity of phagocytes such as macrophages...

    Apoptosis Detection

  2. Thanks for your information, if you any document please send to this address
    "Mr.Jagadeesh S, GVK Biosciences PVT.LTD, Industrialtechnodrafts, Balanagar, hyderabad." That's helpful to my work..