Suppression of cell-cycle progression by Jun dimerization protein-2 (JDP2) involves downregulation of cyclin-A2
文献类型: 外文期刊
第一作者: Huang, Y-C
作者: Huang, Y-C;Lee, C-H;Tsai, E-M;Yokoyama, K. K.;Pan, J.;Nakade, K.;Masuzaki, S.;Murata, T.;Yoshiki, A.;Obata, Y.;Yokoyama, K. K.;Pan, J.;Zhu, Z-W;Hasegawa, H.;Yamaguchi, N.;Lee, C-H;Yang, W-C;Yokoyama, K. K.
作者机构:
关键词: cyclin-A2;cell proliferation;JDP2;epidermal thickness;cell-cycle arrest
期刊名称:ONCOGENE ( 影响因子:9.867; 五年影响因子:8.858 )
ISSN: 0950-9232
年卷期: 2010 年 29 卷 47 期
页码:
收录情况: SCI
摘要: We report here a novel role for Jun dimerization protein-2 (JDP2) as a regulator of the progression of normal cells through the cell cycle. To determine the role of JDP2 in vivo, we generated Jdp2-knockout (Jdp2KO) mice by targeting exon-1 to disrupt the site of initiation of transcription. The epidermal thickening of skin from the Jdp2KO mice after treatment with 12-O-tetradecanoyl-phorbol 13-acetate (TPA) proceeded more rapidly than that of control mice, and more proliferating cells were found at the epidermis. Fibroblasts derived from embryos of Jdp2KO mice proliferated faster and formed more colonies than fibroblasts from wild-type mice. JDP2 was recruited to the promoter of the gene for cyclin-A2 (ccna2) at the AP-1 site. Cells lacking Jdp2 had elevated levels of cyclin-A2 mRNA. Furthermore, reintroduction of JDP2 resulted in the repression of transcription of ccna2 and of cell-cycle progression. Thus, transcription of the gene for cyclin-A2 appears to be a direct target of JDP2 in the suppression of cell proliferation. Oncogene (2010) 29, 6245-6256; doi:10.1038/onc.2010.355; published online 30 August 2010
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