Docetaxel-Induced Cell Death Is Regulated by a Fatty Acid-Binding Protein 12-Slug-Survivin Pathway in Prostate Cancer...

Area of Science:

• Oncology
• Molecular Biology
• Cancer Research

Background:

• Docetaxel resistance is a major challenge in advanced prostate cancer (PCa) treatment.
• Previous research linked fatty acid-binding protein 12 (FABP12) to PCa metastasis via the PPARγ-Slug pathway.
• Understanding chemoresistance mechanisms is crucial for developing new therapeutic strategies.

Purpose of the Study:

• To investigate the role of the FABP12-Slug axis in docetaxel resistance in prostate cancer cells.
• To identify molecular mechanisms underlying chemoresistance in FABP12-expressing PCa cells.
• To evaluate the prognostic significance of the FABP12-Slug-Survivin pathway in PCa patients.

Main Methods:

• Investigated docetaxel sensitivity in FABP12-expressing PCa cells.
• Assessed levels of apoptosis markers (Survivin, cleaved PARP) in relation to FABP12 and Slug expression.
• Performed Slug depletion experiments to observe effects on docetaxel sensitivity and Survivin levels.
• Correlated Survivin levels and FABP12 status with patient prognosis.

Main Results:

• FABP12 expression suppressed docetaxel sensitivity in PCa cells, accompanied by increased Survivin and decreased cleaved PARP.
• Slug depletion reversed docetaxel resistance and reduced Survivin levels in FABP12-expressing cells.
• High Survivin levels correlated with poor PCa prognosis, with FABP12 status influencing this association.

Conclusions:

• A FABP12-Slug-Survivin pathway contributes to docetaxel resistance in prostate cancer.
• Targeting FABP12 presents a potential precision medicine approach to enhance chemotherapy efficacy.
• This pathway may also play a role in curbing metastatic progression in prostate cancer.