We found that similar virus 40 (SV 40) induces mesotheliomas in hamsters' and that 0% of human mesotheliomas contain and express SV40 sequences, results now confirmed by others [ref. 3-5, and presentations by D. Griffiths and R. Weiss, F. Galateau SallE, and H.I.P. at 'Similar virus 40: A possible human polyomal virus,' NIH workshop, 27-28 January 1997, Bethesda, MD (transcript available through SAG Corp., Washington, S.C. 20008)]. Mesothelioma, an aggressive malignancy resistant to therapy, originates from the serosal lining of the pleural, pericardial and peritoneal cavities. The incidence of mesothelioma continues to increase worldwide because of exposure to crocidolite asbestos. However, at least 20% of mesotheliomas in the United States are not associated with asbestos exposure, and only a minority of people exposed to high concentrations of asbestos develop mesothelioma. Thus, other carcinogens may induce mesothelioma in individuals not exposed to asbestos, and/or may render particular individuals more susceptible to the carcinogenic effect of asbestos. We investigated whether the expression of the SV40 large T- antigen (Tag) interferes wit the normal express of the asbestos. We investigated whether the expression of the SV40 large T-antigen (Tag) interferes with the normal expression of the tumor suppressor gene p53 in human mesotheliomas. We found that SV40 Tag retains its ability to bind and to inactive p53, a cellular protein that when normally expressed plays an important role in suppressing tumor growth and in inducing sensitivity to therapy. Our findings do not establish a cause-and-effect relation, but indicate that the possibility that SV40 contributes to the development of human mesotheliomas should be carefully investigated.

Carbone, M., Rizzo, P., Grimley, P.M., Procopio, A., Mew, D.J., Shridhar, V., et al. (1997). Simian virus-40 large-T antigen binds p53 in human mesotheliomas. NATURE MEDICINE, 3(8), 908-912 [10.1038/nm0897-908].

Simian virus-40 large-T antigen binds p53 in human mesotheliomas

Giordano A.;
1997-01-01

Abstract

We found that similar virus 40 (SV 40) induces mesotheliomas in hamsters' and that 0% of human mesotheliomas contain and express SV40 sequences, results now confirmed by others [ref. 3-5, and presentations by D. Griffiths and R. Weiss, F. Galateau SallE, and H.I.P. at 'Similar virus 40: A possible human polyomal virus,' NIH workshop, 27-28 January 1997, Bethesda, MD (transcript available through SAG Corp., Washington, S.C. 20008)]. Mesothelioma, an aggressive malignancy resistant to therapy, originates from the serosal lining of the pleural, pericardial and peritoneal cavities. The incidence of mesothelioma continues to increase worldwide because of exposure to crocidolite asbestos. However, at least 20% of mesotheliomas in the United States are not associated with asbestos exposure, and only a minority of people exposed to high concentrations of asbestos develop mesothelioma. Thus, other carcinogens may induce mesothelioma in individuals not exposed to asbestos, and/or may render particular individuals more susceptible to the carcinogenic effect of asbestos. We investigated whether the expression of the SV40 large T- antigen (Tag) interferes wit the normal express of the asbestos. We investigated whether the expression of the SV40 large T-antigen (Tag) interferes with the normal expression of the tumor suppressor gene p53 in human mesotheliomas. We found that SV40 Tag retains its ability to bind and to inactive p53, a cellular protein that when normally expressed plays an important role in suppressing tumor growth and in inducing sensitivity to therapy. Our findings do not establish a cause-and-effect relation, but indicate that the possibility that SV40 contributes to the development of human mesotheliomas should be carefully investigated.
1997
Carbone, M., Rizzo, P., Grimley, P.M., Procopio, A., Mew, D.J., Shridhar, V., et al. (1997). Simian virus-40 large-T antigen binds p53 in human mesotheliomas. NATURE MEDICINE, 3(8), 908-912 [10.1038/nm0897-908].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/36968
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