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Updated: Jun 14, 2026
06:54
Studying TGF-β Signaling and TGF-β-induced Epithelial-to-mesenchymal Transition in Breast Cancer and Normal Cells
Published on: October 27, 2020
Role of Radiation-induced TGF-beta Signaling in Cancer Therapy
Horatiu C Dancea1, Mohammed M Shareef, Mansoor M Ahmed
1Department of General Surgery, Geisinger Clinic, Danville, Pennsylvania.
Molecular and Cellular Pharmacology
|September 28, 2011
Summary
Transforming growth factor-beta (TGF-β) signaling impacts cancer and development. Neutralizing TGF-β shows promise in overcoming radioresistance and developing new radio-therapeutic strategies for solid tumors.
Area of Science:
- Molecular Biology
- Cell Biology
- Oncology
Background:
- Transforming growth factor-beta (TGF-β) signaling is crucial for cell growth, differentiation, apoptosis, motility, angiogenesis, epithelial-mesenchymal transition, and extracellular matrix production.
- TGF-β's role in embryonic development and disease pathogenesis, including cancer, is context-dependent, sometimes promoting and sometimes suppressing cell growth and invasion.
- Dysregulation of TGF-β signaling, through mutations in TGF-beta type II receptor (TβRII) or Smad4, contributes to cancer progression and loss of growth suppression.
Purpose of the Study:
- To investigate the multifaceted roles of TGF-β signaling in biological processes and cancer.
- To explore the potential of targeting TGF-β signaling in radio-adjuvant therapies.
- To understand the mechanisms underlying TGF-β's involvement in radiation-induced normal tissue injury and fibrosis.
Main Methods:
- Utilized classical TGF-β pathway components like TβRII and SMAD4 in radio-adjuvant therapy studies.
- Investigated the negative feedback mechanism involving SMAD7 in radiation-induced TGF-β signaling.
- Employed neutralizing antibodies against TGF-β to assess radioresistance effects.
Main Results:
- TGF-β signaling can promote cell proliferation and invasion in certain contexts, despite its known growth-inhibitory effects.
- Radiation induces TGF-β, primarily contributing to normal tissue injury and fibrosis.
- Neutralizing antibodies against TGF-β demonstrated a robust radio-resistant effect in studies.
Conclusions:
- Understanding TGF-β signaling interactions is key to developing effective adjuvant radio-therapeutic strategies for solid tumors.
- Targeting TGF-β, particularly through antibody neutralization, offers a promising approach to enhance radio-therapeutic efficacy and mitigate radioresistance.
- Further research into the functional interactions of TGF-β pathway components may lead to improved cancer treatment protocols.
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