Mechanisms of organ fibrosis : Emerging concepts and implications for novel treatment strategies

Copyright © 2023 Elsevier Ltd. All rights reserved..

Fibrosis, or tissue scarring, develops as a pathological deviation from the physiological wound healing response and can occur in various organs such as the heart, lung, liver, kidney, skin, and bone marrow. Organ fibrosis significantly contributes to global morbidity and mortality. A broad spectrum of etiologies can cause fibrosis, including acute and chronic ischemia, hypertension, chronic viral infection (e.g., viral hepatitis), environmental exposure (e.g., pneumoconiosis, alcohol, nutrition, smoking) and genetic diseases (e.g., cystic fibrosis, alpha-1-antitrypsin deficiency). Common mechanisms across organs and disease etiologies involve a sustained injury to parenchymal cells that triggers a wound healing response, which becomes deregulated in the disease process. A transformation of resting fibroblasts into myofibroblasts with excessive extracellular matrix production constitutes the hallmark of disease, however, multiple other cell types such as immune cells, predominantly monocytes/macrophages, endothelial cells, and parenchymal cells form a complex network of profibrotic cellular crosstalk. Across organs, leading mediators include growth factors like transforming growth factor-β and platelet-derived growth factor, cytokines like interleukin-10, interleukin-13, interleukin-17, and danger-associated molecular patterns. More recently, insights into fibrosis regression and resolution of chronic conditions have deepened our understanding of beneficial, protective effects of immune cells, soluble mediators and intracellular signaling. Further in-depth insights into the mechanisms of fibrogenesis can provide the rationale for therapeutic interventions and the development of targeted antifibrotic agents. This review gives insight into shared responses and cellular mechanisms across organs and etiologies, aiming to paint a comprehensive picture of fibrotic diseases in both experimental settings and in human pathology.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:92

Enthalten in:

Molecular aspects of medicine - 92(2023) vom: 11. Aug., Seite 101191

Sprache:

Englisch

Beteiligte Personen:

Lurje, Isabella [VerfasserIn]
Gaisa, Nadine T [VerfasserIn]
Weiskirchen, Ralf [VerfasserIn]
Tacke, Frank [VerfasserIn]

Links:

Volltext

Themen:

Cytokines
EMT
Fibroblast
Journal Article
Mechanism
Myofibroblast
Research Support, Non-U.S. Gov't
Review
TGF-beta

Anmerkungen:

Date Completed 03.07.2023

Date Revised 12.01.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.mam.2023.101191

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM35738279X