Wip1 and p53 contribute to HTLV-1 Tax-induced tumorigenesis.
Wip1 and p53 contribute to HTLV-1 Tax-induced tumorigenesis.
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DOI:
10.1186/1742-4690-9-114
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发表时间:
2012-12-21
期刊:
影响因子:
3.3
通讯作者:
Jeang KT
中科院分区:
文献类型:
--
作者:
Zane L;Yasunaga J;Mitagami Y;Yedavalli V;Tang SW;Chen CY;Ratner L;Lu X;Jeang KT
Human T-cell Leukemia Virus type 1 (HTLV-1) infects 20 million individuals world-wide and causes Adult T-cell Leukemia/Lymphoma (ATLL), a highly aggressive T-cell cancer. ATLL is refractory to treatment with conventional chemotherapy and fewer than 10% of afflicted individuals survive more than 5 years after diagnosis. HTLV-1 encodes a viral oncoprotein, Tax, that functions in transforming virus-infected T-cells into leukemic cells. All ATLL cases are believed to have reduced p53 activity although only a minority of ATLLs have genetic mutations in their p53 gene. It has been suggested that p53 function is inactivated by the Tax protein. Using genetically altered mice, we report here that Tax expression does not achieve a functional equivalence of p53 inactivation as that seen with genetic mutation of p53 (i.e. a p53−/− genotype). Thus, we find statistically significant differences in tumorigenesis between Tax+p53+/+versus Tax+p53−/− mice. We also find a role contributed by the cellular Wip1 phosphatase protein in tumor formation in Tax transgenic mice. Notably, Tax+Wip1−/− mice show statistically significant reduced prevalence of tumorigenesis compared to Tax+Wip1+/+ counterparts. Our findings provide new insights into contributions by p53 and Wip1 in the in vivo oncogenesis of Tax-induced tumors in mice.
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DOI:
10.2174/187152808785107642
发表时间:
2008-06-01
期刊:
Inflammation & Allergy Drug Targets
影响因子:
--
作者:
Goncalves, Denise U.;Proietti, Fernando A.;Carneiro-Proietti, Anna B.
通讯作者:
Carneiro-Proietti, Anna B.
DOI:
10.1073/pnas.94.12.6048
发表时间:
1997-06-10
影响因子:
11.1
作者:
Fiscella, M;Zhang, HL;Appella, E
通讯作者:
Appella, E
影响因子:
56.9
作者:
Bunz, F;Dutriaux, A;Vogelstein, B
通讯作者:
Vogelstein, B
影响因子:
23.9
作者:
Demidov, Oleg N.;Timofeev, Oleg;Bulavin, Dmitry V.
通讯作者:
Bulavin, Dmitry V.
影响因子:
6.4
作者:
Chi, Ya-Hui;Ward, Jerrold M.;Jeang, Kuan-Teh
通讯作者:
Jeang, Kuan-Teh