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Updated: Oct 22, 2025

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Published on: October 27, 2020
The Multifaceted Role of TGF-β in Gastrointestinal Tumors
Fabio Sabbadini1, Monica Bertolini1, Serena De Matteis1,2
1Digestive Molecular Clinical Oncology Research Unit, Department of Medicine, University of Verona, 37134 Verona, Italy.
Abstract:
Transforming growth factor-beta (TGF-β) is a secreted cytokine that signals via serine/threonine kinase receptors and SMAD effectors. Although TGF-β acts as a tumor suppressor during the early stages of tumorigenesis, it supports tumor progression in advanced stages. Indeed, TGF-β can modulate the tumor microenvironment by modifying the extracellular matrix and by sustaining a paracrine interaction between neighboring cells. Due to its critical role in cancer development and progression, a wide range of molecules targeting the TGF-β signaling pathway are currently under active clinical development in different diseases. Here, we focused on the role of TGF-β in modulating different pathological processes with a particular emphasis on gastrointestinal tumors.
Insights
Transforming growth factor-beta (TGF-β) is a cytokine crucial in cancer. While initially a tumor suppressor, it promotes advanced cancer by altering the tumor microenvironment, especially in gastrointestinal tumors.
Area of Science:
- Oncology
- Cell Signaling
- Molecular Biology
Background:
- Transforming growth factor-beta (TGF-β) is a cytokine with a dual role in cancer, acting as a tumor suppressor early on but promoting progression later.
- TGF-β signaling involves serine/threonine kinase receptors and SMAD effectors, influencing cellular processes.
- Its role in modulating the tumor microenvironment, including extracellular matrix modification and paracrine signaling, is critical in advanced cancer stages.
Purpose of the Study:
- To review the multifaceted role of TGF-β in pathological processes.
- To emphasize the specific involvement of TGF-β in the development and progression of gastrointestinal tumors.
Main Methods:
- Literature review focusing on TGF-β signaling pathways.
- Analysis of TGF-β's impact on tumor microenvironment and cellular interactions.
- Emphasis on studies related to gastrointestinal cancer.
Main Results:
- TGF-β transitions from a tumor suppressor to a tumor promoter in advanced cancer.
- TGF-β significantly influences the tumor microenvironment through matrix remodeling and paracrine signaling.
- Targeting the TGF-β pathway is a key strategy in current cancer therapy development.
Conclusions:
- TGF-β plays a critical and complex role in cancer progression, particularly in gastrointestinal malignancies.
- Understanding TGF-β's mechanisms is vital for developing effective cancer treatments.
- Ongoing clinical development of TGF-β pathway inhibitors shows promise for various diseases.
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