ArticleCarcinogenesis2025
Analysis of MRPL23 protein expression and its role in prostate cancer pathogenesis.
Article in Carcinogenesis, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Prostate cancer (PCa) is the fourth most commonly diagnosed malignancy worldwide and remains a major clinical challenge due to its heterogeneous course and lack of reliable prognostic biomarkers. Mitochondrial ribosomal protein L23 (MRPL23) has recently emerged as a potential contributor to cancer progression, but its role in prostate cancer remains poorly understood. Formalin-fixed, paraffin-embedded (FFPE) tissue samples from 67 PCa patients who underwent radical prostatectomy were analyzed. MRPL23 expression was assessed by immunohistochemistry using a semi-quantitative immunoreactive scale (IRS). Clinicopathological data were collected for correlation analysis. Survival outcomes were evaluated using Kaplan-Meier curves and Cox proportional hazards models. MRPL23 expression differed significantly across all tissue types, with higher levels in prostate cancer tissues compared with normal epithelium, and the highest expression observed in lymph node metastases (P < .001). High MRPL23 expression was associated with shorter overall survival (P = .003) and remained an independent prognostic factor in the multivariate analysis (HR 3.99, 95% CI 1.63-9.77, P = .002). Complementary TCGA analysis confirmed elevated MRPL23 mRNA levels in prostate adenocarcinomas compared with normal tissues (P = .01) and demonstrated that high expression predicted shorter disease-free survival (10-year DFS: 75.98% versus 92.92%, log-rank P = .01). MRPL23 is a potential prognostic biomarker in prostate cancer, linked to aggressive tumor behavior and poor outcomes. Its expression in metastatic tissue suggests a role in disease progression, while TCGA data confirm its prognostic value for recurrence risk. MRPL23 may also serve as a therapeutic target in advanced PCa.
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