Objective To investigate the effect of quinone oxidoreductase 1 (NQO1) and quinone oxidoreductase 2 (NQO2) expression in the prognosis of ovarian carcinoma.Methods The two online databases were used to perform the online analysis on the NQO1 and NQO2 mRNA levels and prognosis of ovarian cancer patients,1 306 cases of ovarian cancer were performed the Kaplan-Meier analysis by using the KaplanMeier plotter (K-M plotter);578 cases of ovarian cancer in the TCGA database were performed the univariate COX regression survival analysis.Results The K-M plotter analysis showed that the NQO1 expression level had no obvious correlation with the prognosis of ovarian cancer (P>0.05),the higher the NQO2 level,the better the prognosis (HR=0.83,P=0.006 2).The COX regression survival analysis showed that the NQO1 expression level had no obvious correlation with the prognosis of ovarian cancer(P>0.05),the higher the NQO2 level,the better the prognosis (P=0.038 29).Conclusion NQO2 expression level has no obvious correlation with the prognosis of ovarian cancer,moreover the higher the NQO2 expression level,the better the clinical prognosis of ovarian cancer.

Human corneal epithelial cells are continuously replenished by limbal stem cells to maintain ocular homeostasis and normal visual function.Some ocular surface injuries or diseases, such as thermochemical burns and Stevens-Johnson syndrome, can result in limbal stem cell deficiency, severely compromising patients' visual acuity.Non-limbal autologous epithelial tissue transplantation should be considered when both eyes are affected.Oral mucosal epithelial cells are an important source of seed cells for ocular surface reconstruction.What's more, cell sheets constructed ex vivo have achieved good results in clinical applications.This article reviews the research progress on the use of oral mucosal epithelial cells for the treatment of limbal stem cell deficiency, focusing on various factors including carriers, culture conditions, and techniques that may affect the culture of oral mucosal epithelial sheets.In addition, the strengths and weaknesses of the application of cell sheets in clinical ocular surface transplantation are also discussed, so as to provide a research direction for the safe and effective reconstruction of ocular surface epithelium.