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Abnormal P53 High-Grade Endometrioid Endometrial Cancer: A Systematic Review and Meta-Analysis

Overview
Journal Cancers (Basel)
Publisher MDPI
Date 2025 Jan 11
PMID 39796669
Authors
Affiliations
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Abstract

Objective: Our primary objective was to evaluate the oncologic outcomes of patients with abnormal p53 FIGO grade 3 (high-grade) endometrioid endometrial cancer. As secondary objectives, we determined the global prevalence of abnormal p53 in grade 3 endometrioid endometrial carcinomas and the geographical variations.

Methods: The following electronic databases were searched: PubMed/Medline, EMBASE, Cochrane Library, Scopus, and Web of Science. We followed the Meta-Analysis for Observational Studies in Epidemiology guidelines and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses. This review was preregistered with PROSPERO (no: CRD42023495192). Bias was assessed using the Quality in Prognosis Studies tool. For time-to-event data, the effect of p53 status on grade 3 endometrial cancer was described using hazard ratios (HRs) and corresponding 95% confidence intervals (CIs). Overall survival and progression-free survival were analyzed using one- and two-stage approaches, the Kaplan-Meier method, and Cox proportional hazards models.

Results: Fifty-seven studies with 2528 patients were included. Patients with abnormal p53 had an increased risk of death (HR, 1.29 (95% CI, 1.11-1.48); I = 88%) and disease progression (HR, 1.63; 95% CI, 1.42-1.88; I = 2%) compared with patients with wildtype p53 G3 endometrial cancer. The global pooled prevalence of abnormal p53 was 30% (95% CI, 25-34%; tau = 0.02; I = 74%), with the highest prevalence being found in studies conducted in Asia (95% CI, 27-41%; tau = 0.01; I = 52%).

Conclusions: Abnormal p53 grade 3 endometrioid endometrial cancer is more common in Asia, and it is associated with decreased overall survival and progression-free survival.

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