TRPC1 exacerbate metastasis in gastric cancer via ciRS-7/miR-135a-5p/TRPC1 axis.

Metastasis is frequently occurred in end-stage GC. Nevertheless, the initiation and progression of metastasis in GC remains unclear. The transient receptor potential canonical (TRPC) has been confirmed to be crucial for metastasis in many kinds of tumors, including GC. However, the molecular mechanisms regulating TRPC1 is unclear. Therefore, we investigated the role and mechanisms of TRPC1 in GC metastasis. We first evaluated the role of TRPC1 in GC by searching the public database, and tested the expression of TRPC1 in 50 paired GC tissues by qRT-PCR and IHC assays. Then, we generated BGC-823-shTRPC1 cells and MKN-45-TRPC1 cells to investigate the effects of TRPC1 on metastasis in vitro. For the mechanism study, we applied luciferase reporter assay, RNA pull-down assay, as well as RIP assay to validate the interation of ciRS-7, miR-135a-5p and TRPC1 in GC cells. This study, we showed that TRPC1 exacerbate EMT in gastric cancer via ciRS-7/miR-135a-5p/TRPC1 axis, and target TRPC1 could be beneficial for end-stage GC patients.

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