Profile of NF-κBp(65/NFκBp50) among prostate specific antigen sera levels in prostatic pathologies

Area of Science:

• * Oncology and Immunology
• * Molecular Biology and Pathology

Background:

• * Nuclear factor-kappa B (NF-κB) is a key transcription factor involved in inflammation and cellular processes.
• * Prostate-specific antigen (PSA) is a widely used biomarker for prostate cancer screening and monitoring.
• * The relationship between NF-κB activation and PSA levels in various prostatic pathologies requires further elucidation.

Purpose of the Study:

• * To characterize the immunoexpression of NF-κB (p50/p65 subunits) in human prostate pathologies.
• * To investigate the activation profiles of NF-κB in relation to serum PSA levels across different patient groups.

Main Methods:

• * Immunohistochemical and Western blot analyses were performed on prostate tissue samples.
• * Serum PSA levels were quantified using an immulite autoanalyzer.
• * Study included patients with benign prostate hyperplasia (BPH), prostate cancer (PC), and normal prostates (NP).

Main Results:

• * NF-κB p65 and p50 immunoexpression was detected in BPH and PC samples, with p50 also found in normal prostate (NP) samples.
• * PC samples exhibited more intense NF-κB p65 and p50 immunoexpression, particularly in the nucleus, compared to BPH samples.
• * NF-κB p65 immunoexpression profiles varied with PSA levels in BPH patients, showing weaker expression in the 0-4 ng/mL group.

Conclusions:

• * The findings suggest a correlation between NF-κB activation and PSA levels in the progression of prostatic diseases.
• * The differential expression patterns of NF-κB in BPH and PC indicate its potential role in disease pathogenesis.
• * NF-κB and PSA's sensitivity to inflammation supports their interconnectedness in inflammatory and neoplastic prostate conditions.