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

Rong-Zong Liu1, Mansi Garg1, Xiao-Hong Yang1

  • 1Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, AB T6G 1Z2, Canada.

Insights

A newly identified pathway involving fatty acid-binding protein 12 (FABP12) and Slug drives docetaxel resistance in prostate cancer (PCa). Targeting FABP12 may improve chemotherapy effectiveness and reduce metastatic spread in PCa patients.

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.

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