Takaku Motoki, Grimm Sara A, Wade Paul A
Epigenetics and Stem Cell Biology Laboratory, National Institute of Environmental Health Science, Research Triangle Park, NC, USA.
Gene Expr. 2015;16(4):163-8. doi: 10.3727/105221615X14399878166113.
GATA3 is a highly conserved, essential transcription factor expressed in a number of tissues, including the mammary gland. GATA3 expression is required for normal development of the mammary gland where it is estimated to be the most abundant transcription factor in luminal epithelial cells. In breast cancer, GATA3 expression is highly correlated with the luminal transcriptional program. Recent genomic analysis of human breast cancers has revealed high-frequency mutation in GATA3 in luminal tumors, suggesting "driver" function(s). Here we discuss mutation of GATA3 in breast cancer and the potential mechanism(s) by which mutation may lead to a growth advantage in cancer.
GATA3是一种高度保守的必需转录因子,在包括乳腺在内的多种组织中表达。乳腺的正常发育需要GATA3的表达,据估计它是腔上皮细胞中最丰富的转录因子。在乳腺癌中,GATA3的表达与腔转录程序高度相关。最近对人类乳腺癌的基因组分析显示,腔肿瘤中GATA3存在高频突变,提示其具有“驱动”功能。在此,我们讨论乳腺癌中GATA3的突变以及突变可能导致癌症生长优势的潜在机制。