Expression of KCNA5 Protein in Human Mammary Epithelial Cell Line Associated with Caveolin-1

Expression of KCNA5 Protein in Human Mammary Epithelial Cell Line Associated with Caveolin-1 Voltage-gated potassium (Kv) channels are involved in the proliferation and transformation of mammary epithelial cells. They are thought to be related to the development of breast carcinoma, although the exact role they play in this event remains unclear. In this study, we investigated whether the expression and function of Kv channels is associated with Caveolin-1 (Cav-1, a principal component of caveolae) in different cell lines. We found that expression of Cav-1 correlated with the expression of Kv channels in mammary epithelial cells (MCF10A, MCF10A-ST1, and MCF7), and silencing of Cav-1 inhibited the expression of KCNA5 (voltage-gated shaker-related subfamily A, member 5). Immunofluorescence analysis indicated the colocalization of KCNA5 with Cav-1, whereas immunoprecipitation suggested a possible interaction between the two proteins. Overall, our finding indicated that KCNA5 protein may interact with Cav-1, thereby contributing to the proliferation and early transformation of mammary cells. The Journal of Membrane Biology Springer Journals

Expression of KCNA5 Protein in Human Mammary Epithelial Cell Line Associated with Caveolin-1

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Springer US
Copyright © 2016 by Springer Science+Business Media New York
Life Sciences; Biochemistry, general; Human Physiology
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