Fibrotic skin diseases are characterized by the accumulation of collagen. The hallmarks of fibrotic skin diseases are unbalanced fibroblast proliferation and differentiation, extracellular matrix production and transforming growth factor-β signalling. Numerous studies have investigated the possibility that microRNAs (miRNAs or miRs) are involved in the pathogenesis of certain fibrotic diseases, including skin, heart, lung and liver diseases. miRNAs are a class of small non-coding RNAs, which modify gene expression by binding to target messenger RNA (mRNA) and blocking the translation or inducing the degradation of target mRNA. The biological relevance of miRNAs has been investigated in physiological and pathological conditions, and there is increasing evidence that the miR-29 family is associated with fibrotic diseases. The aim of the present review is to provide an up-to-date summary of current knowledge on the latest developments associated with the miR-29 family and fibrotic skin diseases.
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http://dx.doi.org/10.3892/br.2017.900 | DOI Listing |
JID Innov
March 2025
Cell Biology & Cutaneous Research, Blizard Institute, Queen Mary University of London, London, United Kingdom.
Junctional epidermolysis bullosa caused by loss-of-function variants in genes encoding the skin basement membrane proteins laminin 332, type XVII collagen, or integrin α6β4 affects patients from birth with severe blistering, eventually leading to scarring and early lethality. In this study, we have optimized a previously published junctional epidermolysis bullosa-knockout mouse model with weekly tamoxifen intraperitoneal injections, resulting in a more controllable and severe model. Owing to the titratable dosing, this model now recapitulates both early and advanced stages of the human disease, strengthening its use in therapeutic studies.
View Article and Find Full Text PDFJ Cachexia Sarcopenia Muscle
February 2025
Department of Physical Therapy, University of Florida Health Cancer Center, Gainesville, Florida, USA.
Background: Cancer cachexia represents a debilitating muscle wasting condition that is highly prevalent in gastrointestinal cancers, including pancreatic ductal adenocarcinoma (PDAC). Cachexia is estimated to contribute to ~30% of cancer-related deaths, with deterioration of respiratory muscles suspected to be a key contributor to cachexia-associated morbidity and mortality. In recent studies, we identified fibrotic remodelling of respiratory accessory muscles as a key feature of human PDAC cachexia.
View Article and Find Full Text PDFBackground: Systemic sclerosis (SSc) is a rare connective tissue disease, frequently affecting the skin, lungs, and pulmonary vasculature. Approximately 30-50% of SSc patients develop interstitial lung disease (SSc-ILD), with 30-35% of related deaths attributed to it. Even though men are less likely to develop systemic sclerosis, they have a higher incidence of SSc-ILD than women, and they tend to develop it at a younger age with a higher mortality rate.
View Article and Find Full Text PDFImmune Netw
December 2024
Division of Rheumatology, Department of Internal Medicine and Institute of Medical Science, Gyeongsang National University School of Medicine and Gyeongsang National University Hospital, Jinju 52727, Korea.
Systemic sclerosis (SSc) is a complex autoimmune disease with an unclear etiology and no effective treatments. Recent research has suggested involvement of the microbiome in SSc pathogenesis. This study aimed to identify specific microbial species associated with SSc and explore their therapeutic potential.
View Article and Find Full Text PDFArthritis Rheumatol
January 2025
Division of Medicine, Department of Inflammation and Rare Diseases, UCL Centre for Rheumatology, University College London, London, NW3 2PF, UK.
Objective: Scleroderma is a life-threatening autoimmune disease characterized by inflammation, tissue remodelling, and fibrosis. This study aimed to investigate the expression and function of transglutaminase 2 (TGM2) in scleroderma skin and experimentally-induced dermal fibrosis to determine its potential role and therapeutic implications.
Methods: We performed immunohistochemistry on skin sections to assess TGM2 expression and localisation, and protein biochemistry of both SSc-derived and healthy control dermal fibroblasts to assess TGM2 expression, function and ECM deposition in the presence of a TGM2 and TGFβ neutralizing antibodies and a small molecule inhibitor of the TGFβRI kinase.
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