Abstract
BRCA1 exerts transcriptional repression through interaction with CtIP in the C-terminal BRCT domain and ZBRK1 in the central domain. A dozen genes, including angiopoietin-1 (ANG1), a secreted angiogenic factor, are corepressed by BRCA1 and CtIP based on microarray analysis of mammary epithelial cells in 3D culture. BRCA1, CtIP, and ZBRK1 form a complex that coordinately represses ANG1 expression via a ZBRK1 recognition site in the ANG1 promoter. Impairment of this complex upregulates ANG1, which stabilizes endothelial cells that form a capillary-like network structure. Consistently, Brca1-deficient mouse mammary tumors exhibit accelerated growth, pronounced vascularization, and overexpressed ANG1. These results suggest that, besides its role in maintaining genomic stability, BRCA1 directly regulates the expression of angiogenic factors to modulate the tumor microenvironment.
| Original language | English |
|---|---|
| Pages (from-to) | 13-24 |
| Number of pages | 12 |
| Journal | Cancer Cell |
| Volume | 10 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2006 Jul 1 |
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All Science Journal Classification (ASJC) codes
- Oncology
- Cell Biology
- Cancer Research
Cite this
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Removal of BRCA1/CtIP/ZBRK1 repressor complex on ANG1 promoter leads to accelerated mammary tumor growth contributed by prominent vasculature. / Furuta, Saori; Wang, Ju-Ming; Wei, Shuanzeng; Jeng, Yung Ming; Jiang, Xianzhi; Gu, Bingnan; Chen, Phang Lang; Lee, Eva Y.H.P.; Lee, Wen Hwa.
In: Cancer Cell, Vol. 10, No. 1, 01.07.2006, p. 13-24.Research output: Contribution to journal › Article
TY - JOUR
T1 - Removal of BRCA1/CtIP/ZBRK1 repressor complex on ANG1 promoter leads to accelerated mammary tumor growth contributed by prominent vasculature
AU - Furuta, Saori
AU - Wang, Ju-Ming
AU - Wei, Shuanzeng
AU - Jeng, Yung Ming
AU - Jiang, Xianzhi
AU - Gu, Bingnan
AU - Chen, Phang Lang
AU - Lee, Eva Y.H.P.
AU - Lee, Wen Hwa
PY - 2006/7/1
Y1 - 2006/7/1
N2 - BRCA1 exerts transcriptional repression through interaction with CtIP in the C-terminal BRCT domain and ZBRK1 in the central domain. A dozen genes, including angiopoietin-1 (ANG1), a secreted angiogenic factor, are corepressed by BRCA1 and CtIP based on microarray analysis of mammary epithelial cells in 3D culture. BRCA1, CtIP, and ZBRK1 form a complex that coordinately represses ANG1 expression via a ZBRK1 recognition site in the ANG1 promoter. Impairment of this complex upregulates ANG1, which stabilizes endothelial cells that form a capillary-like network structure. Consistently, Brca1-deficient mouse mammary tumors exhibit accelerated growth, pronounced vascularization, and overexpressed ANG1. These results suggest that, besides its role in maintaining genomic stability, BRCA1 directly regulates the expression of angiogenic factors to modulate the tumor microenvironment.
AB - BRCA1 exerts transcriptional repression through interaction with CtIP in the C-terminal BRCT domain and ZBRK1 in the central domain. A dozen genes, including angiopoietin-1 (ANG1), a secreted angiogenic factor, are corepressed by BRCA1 and CtIP based on microarray analysis of mammary epithelial cells in 3D culture. BRCA1, CtIP, and ZBRK1 form a complex that coordinately represses ANG1 expression via a ZBRK1 recognition site in the ANG1 promoter. Impairment of this complex upregulates ANG1, which stabilizes endothelial cells that form a capillary-like network structure. Consistently, Brca1-deficient mouse mammary tumors exhibit accelerated growth, pronounced vascularization, and overexpressed ANG1. These results suggest that, besides its role in maintaining genomic stability, BRCA1 directly regulates the expression of angiogenic factors to modulate the tumor microenvironment.
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UR - http://www.scopus.com/inward/citedby.url?scp=33745713176&partnerID=8YFLogxK
U2 - 10.1016/j.ccr.2006.05.022
DO - 10.1016/j.ccr.2006.05.022
M3 - Article
VL - 10
SP - 13
EP - 24
JO - Cancer Cell
JF - Cancer Cell
SN - 1535-6108
IS - 1
ER -