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Updated: Feb 17, 2026

Defining Gene Functions in Tumorigenesis by Ex vivo Ablation of Floxed Alleles in Malignant Peripheral Nerve Sheath Tumor Cells
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Tgfbr2 inactivation facilitates cellular plasticity and development of Pten-null prostate cancer

Wei Zhao1,2, Qingyuan Zhu1, Peng Tan1,3

  • 1Center for Inflammation and Epigenetics, Houston Methodist Research Institute, Houston, TX, USA.

Journal of Molecular Cell Biology
|December 12, 2017
PubMed

Insights

Targeting cellular plasticity in prostate cancer is crucial for overcoming treatment resistance. This study identifies key factors, including bone morphogenetic protein (BMP) signaling, that drive prostate cancer stemness and poor patient survival.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Research

Background:

  • Tumor mutations can induce cellular plasticity, leading to treatment resistance.
  • Novel strategies are needed to identify factors regulating cellular plasticity and combat chemoresistance.

Purpose of the Study:

  • To explore prostate epithelial cell reprogramming for identifying key factors in prostate cancer tumorigenesis and plasticity.
  • To investigate the roles of phosphatase and tensin homolog (Pten) and transforming growth factor-beta receptor type 2 (Tgfbr2) in prostate cancer progression.

Main Methods:

  • Utilized in vitro cell reprogramming and in vivo studies involving Pten and Tgfbr2 deletion in prostate epithelial cells.
  • Analyzed the impact of Tgfbr2 ablation on TGF-β and bone morphogenetic protein (BMP) signaling pathways.
  • Assessed the expression of tumor marker genes (ID1, Oct4, Nanog, Sox2) and their correlation with patient survival.

Main Results:

  • Deletion of Pten and Tgfbr2 enhanced prostate epithelial cell reprogramming efficiency and promoted rapid tumor development.
  • Tgfbr2 ablation suppressed TGF-β signaling while upregulating BMP signaling via Tmeff1.
  • Increased BMP signaling correlated with elevated expression of ID1, Oct4, Nanog, and Sox2, which were inversely linked to patient survival.

Conclusions:

  • Prostate epithelial cell reprogramming is a viable strategy to uncover factors driving cancer plasticity and tumorigenesis.
  • BMP signaling pathways play a critical role in conferring stemness to prostate tumor cells.
  • The ID1/STAT3/NANOG axis represents a potential therapeutic target for improving patient outcomes in prostate cancer.

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