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Published on: October 27, 2020
Transforming growth factor-beta1 and disorders of the lung
Blanca Camoretti-Mercado1, Julian Solway
1Department of Medicine, The University of Chicago, 5841 S. Maryland Avenue, MC6026, Chicago, IL 60637, USA. bcamoret@medicine.bsd.uchicago.edu
Abstract:
The transforming growth factor (TGF) superfamily encompasses about 30 members in mammals. The effect of TGF-beta subfamily members is exerted and regulated via selective pathways of synthesis and signaling that involve activation of latent TGF-beta, specific and high-affinity binding to cell membrane serine/threonine kinase receptors, activation of intracellular cascades that include Smad molecules and mitogen-activated protein kinases, and regulated termination of the effect by diverse mechanisms including protein degradation and transcriptional activation. Several comprehensive reviews on TGF-beta biology in general and on the role of this cytokine in other diseases have been published recently. In recent years an unexpected role of TGF-beta on lung homeostasis has been revealed. Here, we discuss the contribution of TGF-beta to the pathogenesis of asthma and chronic obstructive pulmonary disease, two common illnesses of the lung, as well as of lymphangioleiomyomatosis, a rare disease in women. The information we collate and integrate places TGF-beta at a pivotal point within complex networks that control lung physiology as well as the physiopathology of these lung diseases.
Insights
Transforming growth factor-beta (TGF-beta) plays a critical role in lung homeostasis and disease. This review details TGF-beta
Area of Science:
- Molecular Biology
- Cell Biology
- Pulmonary Medicine
Background:
- The transforming growth factor (TGF) superfamily has approximately 30 members in mammals.
- TGF-beta signaling involves complex pathways including receptor binding, Smad activation, and protein degradation.
- Recent findings highlight an unexpected role for TGF-beta in lung homeostasis.
Purpose of the Study:
- To discuss the contribution of TGF-beta to the pathogenesis of common and rare lung diseases.
- To integrate current knowledge on TGF-beta's role in lung physiology and pathology.
Main Methods:
- Literature review and synthesis of existing research on TGF-beta.
- Focus on TGF-beta's involvement in asthma, chronic obstructive pulmonary disease (COPD), and lymphangioleiomyomatosis (LAM).
Main Results:
- TGF-beta is implicated in the pathogenesis of asthma and COPD.
- TGF-beta also contributes to the development of lymphangioleiomyomatosis.
- TGF-beta is a key regulator in complex networks controlling lung function and disease.
Conclusions:
- TGF-beta is a pivotal factor in maintaining lung homeostasis.
- Dysregulation of TGF-beta signaling contributes to the development of various lung diseases.
- Understanding TGF-beta pathways is crucial for addressing lung physiopathology.
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