Prognostic significance of tumor-infiltrating T cells in ovarian cancer: A meta-analysis

► Meta-analysis of ten studies with 1815 ovarian cancer patients confirms a significant survival advantage associated with tumor-infiltrating lymphocytes (TIL). ► This effect was demonstrated across diverse patient cohorts regardless of the tumor grade, stage, or histologic subtype studied. ► A standardized measure of CD8+ TILs in ovarian cancer will facilitate the clinical use of this robust biomarker.