Trophoblast proliferation, migration, and invasion is regulated by the miR-195/EGFR signaling pathway in recurrent spontaneous abortion patients

OBJECTIVETo investigate the effect of the miR-195/EGFR signaling pathway on trophoblasts in patients with recurrent spontaneous abortion, thus providing a clinical basis for the diagnosis and treatment of recurrent spontaneous abortion.\n\nMETHODSRT-qPCR, western blot, flow cytometry, CCK8, cell scratch assay, transwell, and a dual Luciferase reporter assay were used to detect changes in the miR-195/EGFR signaling pathways in clinical samples and in vitro cultured cells and to explore how these changes affect trophoblasts in affected patients.\n\nRESULTSExpression of miR-195 was elevated in villus tissues of patients with recurrent spontaneous abortion, while the expression levels of EGFR and its downstream genes p38 and AKT phosphorylation were down-regulated. In vitro cultured cell experiments showed that miR-195 inhibited the proliferation, migration, and invasion of trophoblast cells. EGFR is a target gene of miR-195, and miR-195 suppresses the expression of EGFR.\n\nConclusionThe miR-195/EGFR signaling pathway regulates the proliferation, migration, and invasion of trophoblast cells, thus playing an important role in recurrent spontaneous abortion.