ITGA7 functions as a tumor suppressor and regulates migration and invasion in breast cancer

Cancer Management and Research
Adheesh BhandariXiaohua Zhang

Abstract

Breast cancer is the most common malignancy in women and the underlying mechanism of breast cancer cell metastasis is still far from uncover. Integrin subunit alpha 7 (ITGA7) is a functioning protein. It has been detected in many malignancies. But the function of ITGA7 in breast cancer is not clear. Our aim is to explore ITGA7 expression and its role in breast cancer. Real-time PCR was performed to determine ITGA7 expression in BC tissues and normal adjacent tissues. The specific functions of ITGA7 in breast cancer cell lines (MDA-MB-231 and BT-549) transfected with small interfering RNA were determined through migration, invasion assays. Western blot assays were performed to determine the expression of c-met and vimentin. ITGA7 was down-regulated in breast cancer tissues compared to the adjacent normal tissues (T:N =7.68±27.38: 41.01± 31.47, P<0.001) and this observation was consistent with the TCGA cohort (T:N =4.51±0.45:5.40±0.61, P<0.0001). In vitro experiments showed that knocking down ITGA7 significantly inhibited the migration and invasion of the breast cancer cell lines (MDA-MB-231 and BT-549). Meanwhile, knockdown of ITGA7 promoted c-met and vimentin expression, which may induce invasion and migration. ITGA7 plays an i...Continue Reading

Citations

May 24, 2019·Journal of Cellular and Molecular Medicine·Adheesh BhandariDuping Huang
Jul 3, 2020·Pathology Oncology Research : POR·Viktoria KoroknaiMargit Balazs

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Methods Mentioned

BETA
PCR
transfection
electrophoresis

Software Mentioned

SPSS

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