A Study of Ki-67 Immunostaining in Prostate Carcinomas and Its Correlation with Gleason's Score and Prognosis: An...

Area of Science:

• Oncology
• Pathology

Background:

• Prostate cancer is a leading cause of male cancer mortality globally.
• Accurate prognostic biomarkers are crucial for risk stratification and treatment decisions.

Purpose of the Study:

• To evaluate Ki-67 as a prognostic marker in prostate cancer.
• To examine the association between Ki-67 expression and clinicopathological parameters.

Main Methods:

• Cross-sectional study of 102 prostate core biopsy specimens.
• Histopathological grading using Gleason scoring.
• Statistical analysis using Kruskal-Wallis and Fisher's exact tests in R software.

Main Results:

• Significant correlations found between Ki-67 expression and clinicopathological parameters.
• High Ki-67 associated with higher Gleason scores, perineural invasion, advanced T stages, and metastasis.
• Positive association with lymph node metastasis, distant metastasis, and higher prognostic stage groups.

Conclusions:

• Ki-67 shows potential as a prognostic marker in prostate cancer.
• Ki-67 aids in risk stratification and treatment decision-making when combined with morphological assessments.
• Findings support Ki-67's utility alongside Gleason scoring and perineural invasion analysis.