期刊
MOLECULAR AND CELLULAR BIOCHEMISTRY
卷 335, 期 1-2, 页码 29-35出版社
SPRINGER
DOI: 10.1007/s11010-009-0237-8
关键词
Kruppel-like factor 6; c-Src; Estrogen receptor{alpha}; Breast cancer
类别
资金
- National Natural Science Funds
Estrogen receptors play a key role in breast cancer development and progression. Kruppel-like factor 6 (KLF6) is a tumour-suppressing protein. The aim of this study was to identify the role of KLF6 inhibition in estrogen receptor{alpha} (ER alpha)-elicited breast cancer development. Protein expression levels were examined by western blot analysis and immunoprecipitation was used to analyse interactions between proteins. An MTT assay was used to study cell proliferation. We found that KLF6 mediates cell growth in ER alpha-positive breast cancer cells through interaction with the c-Src protein. This interaction causes inactivation of the Erk and Akt proteins. These pathways are critical for the proliferation and survival of breast cancer cells. We also established that KLF6 could not mediate cell growth in ER alpha-negative cells. We conclude that KLF6 can modulate ER alpha-mediated cell growth in breast cancer cells. The unique role of KLF6 in mediating cell growth in breast cancer cells opens up the possibility of a new therapeutic strategy for treating breast cancer.
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