Opposing roles of TGFβ and BMP signaling in prostate cancer development

Genes Dev. 2017 Dec 1;31(23-24):2337-2342. doi: 10.1101/gad.307116.117.

Abstract

SMAD4 constrains progression of Pten-null prostate cancer and serves as a common downstream node of transforming growth factor β (TGFβ) and bone morphogenetic protein (BMP) pathways. Here, we dissected the roles of TGFβ receptor II (TGFBR2) and BMP receptor II (BMPR2) using a Pten-null prostate cancer model. These studies demonstrated that the molecular actions of TGFBR2 result in both SMAD4-dependent constraint of proliferation and SMAD4-independent activation of apoptosis. In contrast, BMPR2 deletion extended survival relative to Pten deletion alone, establishing its promoting role in BMP6-driven prostate cancer progression. These analyses reveal the complexity of TGFβ-BMP signaling and illuminate potential therapeutic targets for prostate cancer.

Keywords: BMPR2; PTEN; SMAD4; TGFBR2; bone metastasis; prostate cancer.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Animals
  • Bone Morphogenetic Protein Receptors, Type II / genetics*
  • Bone Morphogenetic Protein Receptors, Type II / metabolism*
  • Bone Neoplasms / genetics
  • Bone Neoplasms / secondary
  • Disease Models, Animal
  • Gene Deletion
  • Gene Expression Profiling
  • Gene Expression Regulation, Neoplastic
  • Genotype
  • Kaplan-Meier Estimate
  • Male
  • Mice
  • Mice, Inbred C57BL
  • PTEN Phosphohydrolase / genetics
  • Prostatic Neoplasms / genetics
  • Prostatic Neoplasms / physiopathology*
  • Protein Serine-Threonine Kinases / genetics*
  • Protein Serine-Threonine Kinases / metabolism*
  • Receptor, Transforming Growth Factor-beta Type II
  • Receptors, Transforming Growth Factor beta / genetics*
  • Receptors, Transforming Growth Factor beta / metabolism*
  • Signal Transduction*
  • Smad4 Protein / genetics
  • Smad4 Protein / metabolism

Substances

  • Receptors, Transforming Growth Factor beta
  • Smad4 Protein
  • Protein Serine-Threonine Kinases
  • Bone Morphogenetic Protein Receptors, Type II
  • Receptor, Transforming Growth Factor-beta Type II
  • PTEN Phosphohydrolase