OBJECTIVE: Explored the correlation between CD1a expression in recurrence and prognosis of ovarian cancer (OV). METHODS: The CD1a expression profile in OV, recurrent OV, and normal tissues, as well as corresponding clinical data, were obtained from The Cancer Genome Atlas (TCGA), International Cancer Genome Consortium (ICGC), Gene Expression Omnibus (GEO), and Genotype Tissue Expression (GTEx) databases. Meanwhile, immunohistochemical detection of CD1a expression in normal and OV tissues. Kaplan-Meier curves were plotted to estimate the hazard ...