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Updated: Feb 20, 2026

Generation of Tumor Organoids from Genetically Engineered Mouse Models of Prostate Cancer
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Molecular insights for the tumor suppressor role of SPOP in prostate cancer

Peiqiang Yan1, Xutong Xue2, Tao Hou1

  • 1Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA.

Biochimica Et Biophysica Acta. Reviews on Cancer
|February 18, 2026
PubMed

Insights

Speckle-type POZ protein (SPOP) acts as a tumor suppressor in prostate cancer by degrading oncogenic proteins. Impaired SPOP function promotes cancer progression, highlighting its therapeutic potential.

Area of Science:

  • Molecular Biology
  • Oncology
  • Biochemistry

Background:

  • Speckle-type POZ protein (SPOP) is a key component of the C3 E3 ubiquitin ligase complex.
  • SPOP regulates protein degradation, impacting cellular processes.
  • Dysregulation of SPOP is linked to prostate cancer development.

Purpose of the Study:

  • To review SPOP's tumor suppressor roles in prostate cancer.
  • To explore SPOP's structural features and upstream regulation.
  • To summarize SPOP-targeting therapeutic strategies for prostate cancer.

Main Methods:

  • Literature review of SPOP's function in prostate cancer.
  • Analysis of SPOP's role in protein ubiquitination and degradation pathways.
  • Summary of SPOP mutations and their oncogenic implications.

Main Results:

  • SPOP mediates the degradation of oncogenic proteins (AR, SRC3, Cdc20, MYC, ERG, PD-L1, BRD4).
  • SPOP mutations impair its tumor suppressor function, promoting cancer.
  • SPOP's mechanisms in oncogenesis are crucial for understanding cancer progression.

Conclusions:

  • SPOP functions as a critical tumor suppressor in prostate cancer.
  • Understanding SPOP's molecular mechanisms is vital for novel drug development.
  • Targeting SPOP offers a promising therapeutic avenue for prostate cancer treatment.
Keywords:
E3 ligaseProstate cancerProtein degradationSPOPTumor suppressorUbiquitination

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