The melanoma-associated 24 base pair duplication in p16INK4a is functionally impaired
نویسندگان
چکیده
منابع مشابه
p16INK4a-induced senescence is disabled by melanoma-associated mutations
The p16(INK4a)-Rb tumour suppressor pathway is required for the initiation and maintenance of cellular senescence, a state of permanent growth arrest that acts as a natural barrier against cancer progression. Senescence can be overcome if the pathway is not fully engaged, and this may occur when p16(INK4a) is inactivated. p16(INK4a) is frequently altered in human cancer and germline mutations a...
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BACKGROUND Expression of the tumor suppressor p16(INK4a) increases during aging and replicative senescence. METHODOLOGY/PRINCIPAL FINDINGS Here, we report that the microRNA miR-24 suppresses p16 expression in human diploid fibroblasts and cervical carcinoma cells. Increased p16 expression with replicative senescence was associated with decreased levels of miR-24, a microRNA that was predicted...
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Carboxyl-terminal binding protein 1 (CtBP1) has been shown to suppress the transcription of several tumor suppressors in vitro. Paradoxically, a previous report showed that CtBP1 mRNA was downregulated in melanoma. Using immunostaining, we found that a large percentage of human melanomas were positive for CtBP1 protein. Furthermore, we demonstrated that CtBP1 expression in melanoma cells contri...
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Unusual HIV-1 nef alleles were isolated from a woman and her vertically infected child. Both patients eventually progressed to develop AIDS. The child died at age 6.5 years, while the mother is currently alive, 13 years since her diagnosis with HIV-1. Predicted amino acid sequences of both mother and child Nefs diverged from the HIV-1 clade B consensus. In particular, they exhibited two separat...
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ژورنال
عنوان ژورنال: International Journal of Cancer
سال: 2005
ISSN: 0020-7136,1097-0215
DOI: 10.1002/ijc.21265