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Updated: Aug 17, 2026

Studying TGF-β Signaling and TGF-β-induced Epithelial-to-mesenchymal Transition in Breast Cancer and Normal Cells
Published on: October 27, 2020
Disruption of the TGF-beta pathway and modeling human cancer in mice
1Laboratary of Cell Regulation and Carcinogenesis, The Center for Cancer Research, NCI, NIH, Bethesda, MD 20892-5055, USA. letterij@mail.nih.gov
Abstract:
There is considerable complexity underlying the mechanisms through which the TGF-beta signaling pathway regulates the initiation and progression of cancer. Analysis of this pathway and the role that it plays in human malignancy continues to elucidate novel mechanisms through which various genetic and epigenetic events subvert the controls that TGF-beta exerts over cell growth, differentiation, and malignant transformation. Modeling these events in the mouse represents an important goal, as the relevant preclinical models are essential not only for improving our understanding of the role of the TGF-beta pathway in the molecular pathogenesis of cancer, but also as tools for evaluating the impact of novel therapeutics on TGF-beta signaling and the role they may play in the prevention and treatment of malignancies. Here, we consider highlights from a number of in vivo murine model systems and relate a few of the significant observations to what we know about TGF-beta signaling in human cancer.
Insights
The transforming growth factor-beta (TGF-beta) signaling pathway
Area of Science:
- Oncology
- Molecular Biology
- Cell Signaling
Background:
- The transforming growth factor-beta (TGF-beta) signaling pathway plays a complex role in cancer initiation and progression.
- Genetic and epigenetic alterations can disrupt TGF-beta's control over cell growth, differentiation, and malignant transformation.
Purpose of the Study:
- To elucidate novel mechanisms of TGF-beta signaling in cancer.
- To highlight the utility of murine models for studying TGF-beta in cancer pathogenesis.
- To evaluate TGF-beta's role in cancer prevention and treatment.
Main Methods:
- Analysis of TGF-beta signaling in human malignancy.
- In vivo murine model systems for studying cancer.
- Preclinical evaluation of novel therapeutics targeting TGF-beta.
Main Results:
- TGF-beta signaling complexity in cancer is being uncovered.
- Murine models provide insights into TGF-beta's role in cancer.
- Observations in mouse models relate to human cancer signaling.
Conclusions:
- Understanding TGF-beta's role in cancer requires complex analysis.
- Murine models are crucial for cancer research and therapeutic development.
- Further study of TGF-beta signaling in cancer is warranted.
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TGF - β Signaling Pathway

