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Studying TGF-β Signaling and TGF-β-induced Epithelial-to-mesenchymal Transition in Breast Cancer and Normal Cells
Published on: October 27, 2020
[Transforming growth factor-beta as a therapeutic target]
Francisco Javier Gálvez-Gastélum1, Ana Soledad Sandoval-Rodríguez, Juan Armendáriz-Borunda
1Instituto de Biología Molecular y Terapia Génica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Jalisco, México.
Abstract:
Transforming growth factor-beta (TGF-beta) family members include TGF-beta, activins, and bone morphogenetic proteins (BMP). These proteins are structurally related cytokines secreted in diverse Metazoans. TGF-beta family members regulate cellular functions such as proliferation, apoptosis, differentiation, and migration, and play an important role in organism development. Deregulated TGF-beta family signaling participates in various human pathologies including autoimmune diseases, vascular disorders, fibrotic disease, and cancer. Ligand-induced activation of TGF-beta family receptors with intrinsic serine/threonine kinase activity, triggers phosphorylation of the intracellular effectors of TGF-beta signaling, the Smads proteins. Once these proteins are activated they translocate into the nucleus, where they induce transcription of target genes and regulate cellular processes and functions. Novel therapeutic strategies are currently being developed to correct alterations in pathologies that involve TGF-beta as the main mediator. The English version of this paper is available at: http://www.insp.mx/salud/index.html.
Insights
Transforming growth factor-beta (TGF-beta) signaling regulates cell functions and development. Dysregulation of this pathway is implicated in diseases like cancer, prompting new therapeutic strategies.
Area of Science:
- Molecular Biology
- Cell Biology
- Biochemistry
Context:
- Transforming growth factor-beta (TGF-beta) superfamily proteins, including TGF-beta, activins, and bone morphogenetic proteins (BMPs), are crucial secreted cytokines in Metazoans.
- These proteins regulate fundamental cellular processes like proliferation, apoptosis, differentiation, and migration, essential for organismal development.
Purpose:
- To review the role of TGF-beta family signaling in cellular functions and human pathologies.
- To explain the mechanism of TGF-beta receptor activation and Smad protein signaling.
- To highlight the therapeutic potential for diseases involving TGF-beta pathway dysregulation.
Summary:
- TGF-beta family members are key regulators of cell behavior and development.
- Aberrant TGF-beta signaling contributes to various human diseases, including cancer and fibrotic conditions.
- Activation of TGF-beta receptors leads to Smad protein phosphorylation, nuclear translocation, and target gene transcription.
Impact:
- Understanding TGF-beta signaling is vital for comprehending developmental processes and disease pathogenesis.
- Targeting the TGF-beta pathway offers promising therapeutic avenues for numerous human pathologies.
- This review provides a foundation for developing novel treatments for TGF-beta-mediated diseases.
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