['Cervical cancer has the second highest morbidity and mortality rates of any malignancy in women worldwide, and it is one of the leading causes of death in Uygur women in Xinjiang China. MicroRNAs are involved in cancer development and progression. Previously, we found that miR-101 is significantly down-regulated in cervical cancer tissues from Uyghur women. The underlying pathophysiology and relevance to tumorigenesis of miR-101 is still largely unknown. The purpose of this study was to elucidate the molecular mechanisms of miR-101 regulation of cervical cancer cell viability and invasion.', 'The expression of miR-101 in cervical cancer cell line (SiHa) was detected by real-time PCR. A miR-101 mimic was overexpressed in SiHa cells, and MTT assays were performed to determine the impact on cell proliferation. Cell would heal assays and flow cytometry were used to detect migratory ability and cellular apoptosis, respectively. Immunohistochemistry was performed to assess protein expression of the miR-101 target gene COX-2.', 'MiR-101 was endogenously expressed in SiHa cells, and alterations in its expression had profound effects on cellular migration and invasion efficiency. Overexpression of miR-101 decreased proliferation in the MTT assay (the mimics at 490 nm absorbance is lower 60% than normal, and decreased cellular motility in the cell would healing assay (transfected: 37 ± 2 m, pre-transfected 184 ± 2 m). Apoptosis rate was significantly higher with overexpression of miR-101 relative to control (transfected: 76.6%, pre-transfected: 3.5%) (P < 0.05). The expression of Cox-2 was decreased in transfected cells.'] Does microRNA-101 regulate the viability and invasion of cervical cancer cells?