• Kirk Hartley

SV40 and Mesothelioma – New Research from Australia’s NCARD

SV40. Simian virus 40. As described by my sister the scientist, it can leave cells looking like a bomb went off inside the cell. It’s been linked by some to various cancers, including brain cancers, DLBCL, and mesothelioma. Some partisan advocates provide some history, with a bias.

SV40 is back in the news for asbestos litigation, after years of controversy back and forth about its prevalence, lab comtamination and the extent to which it was distributed with the Salk polio vaccine.

Last year, a paper from Italian researchers updated on SV40 findings related to mesothelioma. Now, a new paper in Carcinogenesis explores and finds a link between SV40 and mesothelioma. The abstract is online and pasted below:

"Simian virus 40 (SV40) has been implicated in the development of several cancers including malignant mesothelioma. A definitive role for the virus in human mesothelioma has not been unequivocally demonstrated but has been rigorously debated. The virus clearly has oncogenic potential: the TAg is one of the most potent transforming proteins known and acts synergistically with crocidolite asbestos to transform mesothelial cells. In this study, we show that SV40 oncogenes alone can cause malignant transformation and that asbestos-induced DNA damage and apoptosis occurs principally in cycling cells. After long-term exposure (up to 100 days) to both SV40 and asbestos, cells become resistant to stress-induced senescence. Significantly, these cells demonstrate resistance to chemotherapy-induced apoptosis. This finding has implications for the development of effective treatment options for patients with mesothelioma."


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