LncRNA PGM5-AS1 regulates cell functions and acts as a potential biomarker to predict prognosis in breast cancer

Background The aggressive proliferation and spread of breast cancer contributes to a dismal clinical outcome. The present study was to investigate the function and underlying mechanism of the long non-coding RNA (lncRNA) PGM5-AS1 in the modulation of breast cancer. Methods Quantitative real time-polymerase chain reaction was utilized to assess the levels of PGM5-AS1 and miR-18a-3p. The prognostic significance was evaluated through Kaplan–Meier survival analysis and multivariate Cox regression analysis. Cell viability in breast cancer cells was measured utilizing a cell counting kit-8 kit. Cell migration and invasion were investigated using a transwell assay. The targeted regulatory interaction between PGM5-AS1, miR-18a-3p, and TGFBR3 was validated via dual luciferase reporter gene assay. Result Levels of PGM5-AS1 were low in both breast tissue and cancer cell lines. This reduction in expression was linked to various clinical characteristics and a reduced overall survival rate in breast cancer patients. Upregulation of PGM5-AS1 expression noticeably inhibited proliferation, migration, and invasion in breast cancer cells. PGM5-AS1 regulated breast cancer development by controlling the miR-18a-3p/TGFBR3 axis. Conclusion The lncRNA PGM5-AS1/miR-18a-3p/TGFBR3 axis is considered a potential genetic target for the development of breast cancer treatments.