mir-425-5p mediation of malignant behavior and immune escape of cervical cancer cells by targeting ncam1

Microrna (mir)-425-5p is used as a molecular biomarker to identify cervical cancer (cxca). however, few studies have examined the mir-425-5p-based modulation of the vital activities of cxca cells.the levels of neural cell adhesion molecule 1 (ncam1) and mir-425-5p in cxca tissues and cells were tested using western blot and reverse transcription quantitative polymerase chain reaction (rt-qpcr) tests. cxca cells' malignant phenotype was examined through clone formation tests, and transwell tests. cd8+t cells were co-cultured with cxca cells and then analyzed for apoptosis rates and the expression of activation proteins (granzyme b (gzmb) and perforin) as well as immune factors (tumor necrosis factor-alpha (tnf-α) and interferon-gamma (ifn-γ)) using flow cytometry, western blot, and enzyme-linked immunosorbent assay (elisa) methods. finally, in nude mouse experiments, the tumor size was measured for subcutaneous tumors, and the expression of cd8+t cell-related factors was detected.the ncam1 and mir-425-5p were down-regulated and up-regulated in cxca tissue and cells, respectively. after silencing mir-425-5p, cxca cells showed attenuation in vitality, clone formation rate, and their capacities to migrate, penetrate, and evade immune responses. ncam1 was targeted and silenced by mir-425-5p. when ncam1 was silenced, it partially counteracted mir-425-5p's inhibitory effects on the immune escape and proliferation. in nude mice, the tumor size and weight decreased after silencing mir-425-5p, and levels of cd8, ifn-γ, tnf-α, perforin, and gzmb were elevated. however, these changes were reversed when ncam1 was silenced.in conclusion, mir-425-5p mediates the biological behavior and immune evasion of cxca cells by regulating ncam1.