Critical Evaluation of Transcripts and Long Noncoding RNA Expression Levels in Prostate Cancer Following Radical...

Area of Science:

• Oncology
• Molecular Biology
• Biomarker Discovery

Background:

• Prostate cancer (PCa) exhibits variable clinical behavior, necessitating improved prognostic tools beyond the Gleason score.
• Accurate risk stratification is crucial for intermediate-risk PCa patients to guide treatment decisions.

Purpose of the Study:

• To identify novel gene and noncoding RNA (ncRNA) expression biomarkers associated with biochemical recurrence (BR) in prostate cancer patients.
• To explore the potential of these biomarkers for stratifying intermediate-risk PCa patients.

Main Methods:

• Gene expression analysis of 86 cancer hallmark genes in 171 PCa patients post-radical prostatectomy.
• ncRNA expression profiling in a sub-cohort of 39 patients with Gleason score 7 tumors.
• Correlation analysis between gene/ncRNA expression and biochemical recurrence (BR).

Main Results:

• Specific gene expression patterns (low IGF1/SRD52A, high TIMP2/PLAUR/S100A2/CANX) correlated with BR.
• High expression of ncRNAs LINC00624, LINC00593, LINC00482, and cd27-AS1 was significantly associated with BR.
• A strong correlation was observed between LINC00624 and KRT8 gene expression, suggesting a role in PCa progression.

Conclusions:

• Identified potential gene and ncRNA biomarkers for predicting BR in PCa.
• Findings suggest tumor-promoting roles for ncRNAs in intermediate-risk PCa.
• These biomarkers may aid in identifying patients who could benefit from adjuvant therapies.