Misregulation of Rad50 expression in melanoma cells.
Misregulation of Rad50 expression in melanoma cells.
复制标题
DOI:
10.1111/j.1600-0560.2012.01915.x
复制
发表时间:
2012-07
影响因子:
1.7
通讯作者:
Cheung WL
中科院分区:
文献类型:
--
作者:
Avaritt NL;Owens R;Larson SK;Reynolds M;Byrum S;Hiatt KM;Smoller BR;Tackett AJ;Cheung WL
DNA double-strand breaks are increased in human melanoma tissue as detected by histone H2AX phosphorylation. We investigated two of the downstream effectors of DNA double-strand breaks, Rad50 and 53BP1 (tumor suppressor p53 binding protein 1), to determine if they are altered in human primary melanoma cells. Melanoma cases demonstrated high Rad50 staining (81.8%; 9/11) significantly more frequently than conventional or atypical melanocytic nevi (0%; 0/18). In contrast, the staining pattern for 53BP1 appears similar between melanoma and nevi. This is the first study that demonstrates activation and misregulation of the DNA repair pathway in human melanoma cells. The staining features of Rad50, a component of an essential DNA double-strand break repair complex, are clearly increased in melanoma cells with regards to both staining intensity and the number of positive melanoma cells. Interestingly, among the melanoma cases with increased Rad50 staining, most demonstrated cytoplasmic rather than nuclear staining (88.9%, 8/9). Further studies are needed to determine the cause of this mislocalization and its affects, if any, on DNA double-strand break repair in melanoma.
登录
查看更多内容
影响因子:
64.8
作者:
Bartkova, Jirina;Rezaei, Nousin;Gorgoulis, Vassilis G.
通讯作者:
Gorgoulis, Vassilis G.
影响因子:
5.6
作者:
Seno, JD;Dynlacht, JR
通讯作者:
Dynlacht, JR
影响因子:
3.3
作者:
Wasco, Matthew J.;Pu, Robert T.;Ma, Linglei
通讯作者:
Ma, Linglei
影响因子:
30.8
作者:
Khanna, KK;Jackson, SP
通讯作者:
Jackson, SP
DOI:
10.1038/nrm3047
发表时间:
2011-02
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
通讯作者:
--