MIF Facilitates Resistance to Androgen Deprivation Therapy by Regulating AMPD2 Expression in Prostate Cancer Cells

Changying Li1,2,3, Chenchen He4, Jiancheng Pan1

  • 1The Second Hospital of Tianjin Medical University, Tianjin, China.

The Prostate
|September 19, 2025
PubMed
Abstract

Insights

Androgen deprivation therapy (ADT) resistance in prostate cancer is driven by increased Macrophage migration inhibitory factor (MIF). Inhibiting MIF overcomes resistance, offering a new therapeutic strategy for advanced prostate cancer.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Androgen deprivation therapy (ADT) is a primary treatment for advanced prostate cancer.
  • Resistance to ADT significantly limits treatment effectiveness and patient outcomes.

Purpose of the Study:

  • To identify key genes mediating resistance to ADT in prostate cancer.
  • To elucidate the molecular mechanisms underlying ADT resistance.

Main Methods:

  • Genome-wide CRISPR/Cas9 knockout (GeCKO) library screening.
  • Single-cell RNA sequencing (scRNA-seq) for gene identification.
  • Functional assays to validate gene targets.

Main Results:

  • Macrophage migration inhibitory factor (MIF) was identified as a critical mediator of ADT resistance.
  • Inhibition of MIF effectively overcomes ADT resistance in preclinical models.
  • Androgen receptor (AR) signaling negatively regulates MIF, with ADT leading to MIF upregulation.
  • MIF promotes prostate cancer cell proliferation by upregulating AMPD2 expression.

Conclusions:

  • ADT induces MIF upregulation, contributing to prostate cancer cell proliferation and ADT resistance.
  • Targeting MIF represents a promising therapeutic strategy to overcome ADT resistance.
  • The AR-MIF-AMPD2 axis is a key pathway in the development of ADT resistance.

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