Tuesday, December 25, 2012
Brain cancer relative research
American scientists recently surprised to find by experiment, the change has been genetically engineered common cold virus can actually slipped into the rat brain cancer cells and not the surgical treatment of brain cancer kill. This scientific discovery shocked the U.S. National Cancer Institute, the U.S. Food and Drug Administration. U.S. scientists said that as soon as possible to anticancer method for the treatment of brain cancer patients. To participate in this experiment the researchers said that they had never seen the animal experiments can produce such a shock effect. If this anti-cancer eventually be able to play a role in the human body, then this will be the first one to cure malignant glial brain tumors. 1.8 million people have been diagnosed with brain cancer in the United States each year, of which 1.3 million people will die soon because of the lack of effective treatment, and about half of these deaths were suffering from malignant glial brain tumors. Patients suffering from brain cancer typically survive for only one year. Researchers of a common cold virus called adenovirus genetically modified, its weakening to the extent that does not affect healthy cells, and then give it to the placement of the "key" of a cancer cell door can be opened. Researchers such a genetically modified virus injected into the rat brain marked malignant glial brain tumor cells, resulting in a 60% cure rate, these cured mice survived for 140 days. After that, researchers will remove its brain no longer brain cancer. The researchers said that in the past, the mice injected with human brain cancer cells usually die within 20 days. Has been adopted The adenovirus is because the virus is very easy to infect human cells. Explain why this transgenic virus reached only 60% cure rate, the researchers said there are two possibilities, first, because the human brain cancer cells in the brains of some mice blooms reach cancer cells The growth rate is faster than the virus replication rate the extent there is a possibility that the virus has not been effectively injected into some mice brain. U.S. scientists say they will as soon as possible in cooperation with the Spanish scientists, to jointly develop an anti-brain cancer drug to human trials. The scientists also said that due to the development of human cancer cells in vivo follow a more complex process, so the treatment of cancer patients than the treatment of mice have been injected with human brain cancer cells to be difficult, but their studies have been fully taken into account these factors. So far, scientists have been injected with human brain cancer cells in mice through a variety of therapies, such as radiation and chemotherapy, a recent study out of new chemotherapy, although can slightly extend the survival time, but eventually died. However, with this new method, the researchers found the therapy one can be called a cure.
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