Hipk2 cooperates with p53 to suppress γ-ray radiation-induced mouse thymic lymphoma.
Hipk2 cooperates with p53 to suppress γ-ray radiation-induced mouse thymic lymphoma.
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DOI:
10.1038/onc.2011.306
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发表时间:
2012-03-01
期刊:
影响因子:
8
通讯作者:
Balmain, A.
中科院分区:
文献类型:
--
作者:
Mao, J-H;Wu, D.;Kim, I-J;Kang, H. C.;Wei, G.;Climent, J.;Kumar, A.;Pelorosso, F. G.;DelRosario, R.;Huang, E. J.;Balmain, A.
A genome-wide screen for genetic alterations in radiation-induced thymic lymphomas generated from p53+/− and p53−/− mice showed frequent loss of heterozygosity (LOH) on chromosome 6. Fine mapping of these LOH regions revealed three non-overlapping regions, one of which was refined to a 0.2 Mb interval that contained only the gene encoding homeobox-interacting protein kinase 2 (Hipk2). More than 30% of radiation-induced tumors from both p53+/− and p53−/− mice showed heterozygous loss of one Hipk2 allele. Mice carrying a single inactive allele of Hipk2 in the germline were susceptible to induction of tumors by γ-radiation, but most tumors retained and expressed the wild-type allele, suggesting that Hipk2 is a haploinsufficient tumor suppressor gene for mouse lymphoma development. Heterozygous loss of both Hipk2 and p53 confers strong sensitization to radiation-induced lymphoma. We conclude that Hipk2 is a haploinsufficient lymphoma suppressor gene.
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影响因子:
8
作者:
Di Stefano, V;Blandino, G;D'Orazi, G
通讯作者:
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DOI:
10.1073/pnas.0703213104
发表时间:
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