#3-100E. Unraveling the Fibrotic Web: Novel Mechanisms and Targets in Systemic Sclerosis (NatRevRheumatol, 2026)

How can we effectively halt the relentless progression of refractory fibrotic diseases? This episode delves into the complex pathogenesis of systemic sclerosis (SSc), a prototypical immune-mediated fibrosing disorder12. The review comprehensively maps out how vascular injury, chronic inflammation, and misdirected repair responses synergistically drive tissue remodeling. Utilizing advanced omics technologies, this research highlights the emergence of novel profibrotic fibroblast subpopulations and sheds light on unexplored molecular drivers, such as epigenetic tissue memory and the nerve-fibroblast axis1more_horiz. These groundbreaking insights are paramount for clinicians, as they unveil a new horizon of preclinical targets that could eventually shift our therapeutic paradigm toward true disease-modifying treatments for systemic fibrosis. However, when critically appraising these findings, listeners must note that many discussed targets remain strictly in the preclinical stage, and current animal models often fail to fully recapitulate the multifaceted nature of human SSc. Understanding these emerging pathways is crucial for physicians aiming to stay at the forefront of rheumatology and anticipate the next generation of targeted antifibrotic therapies.

Citation: Distler, J.H.W. Mechanisms of fibrotic tissue remodelling: insights from systemic sclerosis. Nature Reviews Rheumatology. 2026. DOI: https://doi.org/10.1038/s41584-025-01349-z

Disclaimer: This audio summary is based on personal interpretation and does not guarantee the exact content of the original paper. Please refer to the original article for details.