Knockdown of SLC35F2 Inhibits the Proliferation and Metastasis of Bladder Cancer Cells

Onco Targets Ther. 2019 Dec 10:12:10771-10786. doi: 10.2147/OTT.S229332. eCollection 2019.

Abstract

Background: Many studies have shown that solute carrier family 35 member F2 (SLC35F2) plays a key role in the biological processes of multiple cancers. However, there have been no reports on the role of SLC35F2 in the occurrence and development of bladder cancer (BC).

Methods: SLC35F2 expression data and clinical and prognostic information from BC patients were obtained from databases. SLC35F2 expression in BC was verified by quantitative real-time PCR (qRT-PCR). The influence of SLC35F2 knockdown on the proliferation, apoptosis, migration and invasion in the 5637 and T24 cell lines was studied, and tumor formation experiments were performed in nude mice. Gene set enrichment analysis (GSEA) was used to predict the pathways and functions of SLC35F2 in BC.

Results: SLC35F2 was highly expressed in BC tissues and was associated with invasiveness and T stage in BC patients. SLC35F2 knockdown can inhibit the proliferation, migration and invasion of BC cells and can promote apoptosis. SLC35F2 knockdown significantly reduced tumorigenesis in nude mice. GSEA showed that BC, pathways in cancer, apoptosis and the P53 signaling pathway were significantly enriched in SLC35F2 high expression phenotype.

Conclusion: SLC35F2 can promote malignant progression and is a potential therapeutic target in BC.

Keywords: SLC35F2; bladder cancer; invasion; migration; proliferation.

Grants and funding

This research was funded by Hainan Provincial Natural Science Foundation of China (Grant No. 2017CXTD010 and 20168312), the National Science Foundation of China (Grant No. 81760465 and 81460450), the Finance science and technology project of hainan province (Grant No. ZDYF2019163 and ZDKJ2017007).