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Updated: Mar 1, 2026

Fibroblast Derived Human Engineered Connective Tissue for Screening Applications
Published on: August 20, 2021
Therapeutic pro-fibrogenic signaling pathways in fibroblasts
Stefania Cannito1, Erica Novo1, Maurizio Parola1
1Department of Clinical and Biological Sciences, Unit of Experimental Medicine and Clinical Pathology, University of Torino, Corso Raffaello 30, 10125 Torino, Italy.
Abstract:
Myofibroblasts (MFs) play a critical role in the progression of chronic inflammatory and fibroproliferative diseases in different tissues/organs, whatever the etiology. Fibrosis is preceded and sustained by persistent injury and inflammatory response in a profibrogenic scenario involving mutual interactions, operated by several mediators and pathways, of MFs and related precursor cells with innate immunity cells and virtually any cell type in a defined tissue. These interactions, mediators and related signaling pathways are critical in initiating and perpetuating the differentiation of precursor cells into MFs that in different tissues share peculiar traits and phenotypic responses, including the ability to proliferate, produce ECM components, migrate and contribute to the modulation of inflammatory response and tissue angiogenesis. Literature studies related to liver, lung and kidney fibrosis have outlined a number of MF-related core regulatory fibrogenic signaling pathways conserved across these different organs and potentially targetable in order to develop effective antifibrotic therapeutic strategies.
Insights
Myofibroblasts (MFs) are key drivers of chronic fibrotic diseases. Targeting conserved MF signaling pathways offers a promising strategy for developing new antifibrotic therapies.
Area of Science:
- Cell Biology
- Pathology
- Immunology
Background:
- Myofibroblasts (MFs) are crucial in chronic inflammatory and fibroproliferative diseases across various organs.
- Fibrosis results from persistent injury, inflammation, and profibrogenic interactions involving MFs, precursor cells, and immune cells.
- MFs exhibit conserved phenotypic traits, including proliferation, extracellular matrix production, migration, and modulation of inflammation and angiogenesis.
Purpose of the Study:
- To elucidate the critical role of myofibroblasts in fibrotic disease progression.
- To identify conserved signaling pathways involving MFs and their interactions with other cells in fibrotic tissues.
- To explore the potential of targeting these pathways for antifibrotic therapeutic strategies.
Main Methods:
- Review of existing literature on liver, lung, and kidney fibrosis.
- Analysis of molecular mediators and signaling pathways involved in MF differentiation and function.
- Identification of conserved regulatory pathways across different fibrotic organs.
Main Results:
- MFs are central to the initiation and perpetuation of fibrosis through complex cellular interactions.
- Specific signaling pathways regulating MF differentiation and activity are conserved across different fibrotic organs.
- These conserved pathways represent potential therapeutic targets for antifibrotic interventions.
Conclusions:
- Myofibroblast-centric signaling pathways are critical in driving fibrosis.
- Understanding these conserved pathways is essential for developing effective antifibrotic treatments.
- Targeting MFs and their associated signaling offers a promising avenue for treating chronic fibrotic diseases.
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