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Updated: Jul 26, 2025

Studying TGF-β Signaling and TGF-β-induced Epithelial-to-mesenchymal Transition in Breast Cancer and Normal Cells
Published on: October 27, 2020
Small extracellular vesicle TGF-β in cancer progression and immune evasion
Reza Hosseini1, Nashmin Hosseinzadeh2, Leila Asef-Kabiri2
1Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. reza.hosseini6970@sbmu.ac.ir.
Abstract:
Transforming growth factor-β (TGF-β) is a well-known cytokine that controls various processes in normal physiology and disease context. Strong preclinical and clinical literature supports the crucial roles of the TGF-β in several aspects of cancer biology. Recently emerging evidence reveals that the release of TGF-β from tumor/immune/stromal cells in small extracellular vesicles (sEVs) plays an important part in tumor development and immune evasion. Hence, this review aims to address the packaging, release, and signaling pathways of TGF-β carried in sEVs (sEV-TGF-β) in cancer, and to explore its underpinning roles in tumor development, growth, progression, metastasis, etc. We also highlight key progresses in deciphering the roles of sEV-TGF-β in subverting anti-tumor immune responses. The paper ends with a focus on the clinical significance of TGF-β carried in sEVs and draws attention to its diagnostic, therapeutic, and prognostic importance.
Insights
Transforming growth factor-β (TGF-β) within small extracellular vesicles (sEVs) drives cancer progression and immune evasion. Understanding sEV-TGF-β is crucial for developing new cancer diagnostics and therapies.
Area of Science:
- Oncology
- Cell Biology
- Immunology
Background:
- Transforming growth factor-β (TGF-β) is a key cytokine in physiology and disease.
- TGF-β critically influences multiple facets of cancer biology.
- Emerging evidence highlights TGF-β within small extracellular vesicles (sEVs) in tumor development.
Purpose of the Study:
- To review the packaging, release, and signaling of TGF-β in cancer-associated sEVs (sEV-TGF-β).
- To explore the roles of sEV-TGF-β in tumor growth, progression, and metastasis.
- To examine sEV-TGF-β's function in subverting anti-tumor immunity.
Main Methods:
- Literature review focusing on preclinical and clinical studies.
- Analysis of molecular mechanisms of sEV-TGF-β packaging and release.
- Synthesis of data on sEV-TGF-β's impact on tumor microenvironment and immune response.
Main Results:
- sEV-TGF-β is actively released by tumor, immune, and stromal cells.
- sEV-TGF-β promotes tumor development, growth, and metastasis.
- sEV-TGF-β plays a significant role in immune evasion and subversion of anti-tumor responses.
Conclusions:
- sEV-TGF-β is a critical mediator of cancer progression and immune evasion.
- Understanding sEV-TGF-β offers insights into tumor biology.
- sEV-TGF-β holds significant diagnostic, therapeutic, and prognostic potential in oncology.
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