Low Expression of Mitochondrial Ribosomal Protein S5 is Associated With Poor Prognosis in Patients With Clear Cell Renal Cell Carcinoma

  • 0Department of Nephrology, First Affiliated Hospital (Southwest Hospital), Army Medical University (Third Military Medical University), Chongqing, China.

Summary

This summary is machine-generated.

Mitochondrial ribosomal protein S5 (MRPS5) is underexpressed in clear cell renal cell carcinoma (ccRCC). Low MRPS5 expression is linked to poorer patient survival and serves as a potential prognostic biomarker for ccRCC.

Area Of Science

  • Oncology
  • Molecular Biology
  • Biomarker Discovery

Background

  • Mitochondrial ribosomal protein S5 (MRPS5) exhibits altered expression in various cancers.
  • Its role in clear cell renal cell carcinoma (ccRCC) and its prognostic significance remain underexplored.

Purpose Of The Study

  • To investigate the relationship between MRPS5 expression and patient prognosis in ccRCC.
  • To evaluate MRPS5 as a potential prognostic biomarker for ccRCC.

Main Methods

  • Quantitative reverse transcription polymerase chain reaction (qRT-PCR) and western blotting were used to assess MRPS5 in fresh tumoral and peritumoral tissues.
  • Immunohistochemical staining and scoring evaluated MRPS5 expression in paraffin-embedded ccRCC tissues.
  • Statistical analyses, including Kaplan-Meier and multivariate analysis, correlated MRPS5 expression with clinicopathological parameters and patient survival.

Main Results

  • MRPS5 mRNA and protein levels were significantly lower in ccRCC tumoral tissues compared to peritumoral tissues.
  • High MRPS5 expression was observed in 61.9% of 160 ccRCC samples.
  • MRPS5 expression correlated significantly with T classification, TNM stage, and Fuhrman grade.
  • Low MRPS5 expression was associated with poorer overall survival and recurrence-free survival.
  • Multivariate analysis confirmed MRPS5 as an independent predictor of survival.

Conclusions

  • MRPS5 expression is significantly reduced in ccRCC tissues.
  • Low MRPS5 expression is a risk factor and an independent predictor of poor prognosis in ccRCC patients.
  • MRPS5 holds potential as a novel prognostic biomarker for ccRCC.

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