ARID3B Directly Regulates Ovarian Cancer Promoting Genes.
ARID3B Directly Regulates Ovarian Cancer Promoting Genes.
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DOI:
10.1371/journal.pone.0131961
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发表时间:
2015
期刊:
影响因子:
3.7
通讯作者:
Cowden Dahl KD
中科院分区:
文献类型:
--
作者:
Bobbs A;Gellerman K;Hallas WM;Joseph S;Yang C;Kurkewich J;Cowden Dahl KD
The DNA-binding protein AT-Rich Interactive Domain 3B (ARID3B) is elevated in ovarian cancer and increases tumor growth in a xenograft model of ovarian cancer. However, relatively little is known about ARID3B's function. In this study we perform the first genome wide screen for ARID3B direct target genes and ARID3B regulated pathways. We identified and confirmed numerous ARID3B target genes by chromatin immunoprecipitation (ChIP) followed by microarray and quantitative RT-PCR. Using motif-finding algorithms, we characterized a binding site for ARID3B, which is similar to the previously known site for the ARID3B paralogue ARID3A. Functionality of this predicted site was demonstrated by ChIP analysis. We next demonstrated that ARID3B induces expression of its targets in ovarian cancer cell lines. We validated that ARID3B binds to an epidermal growth factor receptor (EGFR) enhancer and increases mRNA expression. ARID3B also binds to the promoter of Wnt5A and its receptor FZD5. FZD5 is highly expressed in ovarian cancer cell lines, and is upregulated by exogenous ARID3B. Both ARID3B and FZD5 expression increase adhesion to extracellular matrix (ECM) components including collagen IV, fibronectin and vitronectin. ARID3B-increased adhesion to collagens II and IV require FZD5. This study directly demonstrates that ARID3B binds target genes in a sequence-specific manner, resulting in increased gene expression. Furthermore, our data indicate that ARID3B regulation of direct target genes in the Wnt pathway promotes adhesion of ovarian cancer cells.
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DOI:
10.1042/bj20110112
发表时间:
2011-07-01
期刊:
The Biochemical journal
影响因子:
--
作者:
Barbolina MV;Burkhalter RJ;Stack MS
通讯作者:
Stack MS
影响因子:
11.2
作者:
Chien, Chian-Shiu;Wang, Mong-Lien;Chiou, Shih-Hwa
通讯作者:
Chiou, Shih-Hwa
影响因子:
6.4
作者:
BERNS, EMJJ;KLIJN, JGM;FOEKENS, JA
通讯作者:
FOEKENS, JA
影响因子:
10.5
作者:
Herrscher, RF;Kaplan, MH;Tucker, PW
通讯作者:
Tucker, PW
影响因子:
14.9
作者:
Bailey TL;Boden M;Buske FA;Frith M;Grant CE;Clementi L;Ren J;Li WW;Noble WS
通讯作者:
Noble WS