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Engineered virus effective against triple negative breast cancer cells, study shows

Date:
January 30, 2014
Source:
Federation of American Societies for Experimental Biology
Summary:
Scientists have discovered a potential cure for one of the most aggressive and least treatable forms of breast cancer called "triple negative breast cancer."

In laboratory experiments involving human cancer cells, scientists used a virus similar to the one that helped eradicate smallpox to coax cancer cells to produce a protein which makes them susceptible to radioactive iodine.
Credit: Leo Lintang / Fotolia

Scientists have discovered a potential cure for one of the most aggressive and least treatable forms of breast cancer called "triple negative breast cancer." In laboratory experiments involving human cancer cells, scientists used a virus similar to the one that helped eradicate smallpox to coax cancer cells to produce a protein which makes them susceptible to radioactive iodine.

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The discovery was published in the February 2014 issue of The FASEB Journal.

Researchers stress that human clinical trials are necessary before any definitive claims of a cure can be made and treatments can be made available.

"We hope that the recent advances in virology, genetic engineering and targeted radiotherapy will soon translate into an entire class of novel oncolytic, virotherapies for the treatment of deadly cancers," said Yuman Fong, M.D., a researcher involved in the work from the Department of Surgery at Memorial Sloan-Kettering Cancer Center in New York, NY.

To make this discovery, Fong and colleagues successfully infected and killed TNBC cells using a vaccinia virus. In addition, the researchers were also able to use the virus to cause infected cancer cells produce a cell surface protein called hNIS that normally is used to concentrate iodine in thyroid cells. The hNIS protein, expressed in thyroid cancer, is why most thyroid cancers can be cured or successfully treated with a small dose of radioactive iodine (which kills thyroid cancer cells expressing hNIS). Armed with the ability to force TNBC cells to produce this protein, researchers now have a way to deliver anticancer therapies to this deadly and resistant form of cancer.

"This is an important and significant discovery that basically combines proven cures for two other diseases," said Gerald Weissmann, M.D., Editor-in-Chief of The FASEB Journal. "Even more exciting is that the effects of this virus and radioactive iodine are well known in people, hopefully reducing the amount of time it will take for it to reach the clinic."


Story Source:

The above story is based on materials provided by Federation of American Societies for Experimental Biology. Note: Materials may be edited for content and length.


Journal Reference:

  1. S. Gholami, C.-H. Chen, E. Lou, L. J. Belin, S. Fujisawa, V. A. Longo, N. G. Chen, M. Gonen, P. B. Zanzonico, A. A. Szalay, Y. Fong. Vaccinia virus GLV-1h153 in combination with 131I shows increased efficiency in treating triple-negative breast cancer. The FASEB Journal, 2013; 28 (2): 676 DOI: 10.1096/fj.13-237222

Cite This Page:

Federation of American Societies for Experimental Biology. "Engineered virus effective against triple negative breast cancer cells, study shows." ScienceDaily. ScienceDaily, 30 January 2014. <www.sciencedaily.com/releases/2014/01/140130102044.htm>.
Federation of American Societies for Experimental Biology. (2014, January 30). Engineered virus effective against triple negative breast cancer cells, study shows. ScienceDaily. Retrieved November 22, 2014 from www.sciencedaily.com/releases/2014/01/140130102044.htm
Federation of American Societies for Experimental Biology. "Engineered virus effective against triple negative breast cancer cells, study shows." ScienceDaily. www.sciencedaily.com/releases/2014/01/140130102044.htm (accessed November 22, 2014).

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