Emerging concepts and novel mechanisms in organ fibrosis.

Ruiz-Villalba, Adrián; Pardo-Saganta, Ana · NPJ Regen Med · 2025

review · Level V

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Abstract

Fibrosis, a maladaptive response characterized by excessive extracellular matrix deposition, disrupts tissue architecture and organ function. Recent advances reveal fibroblast heterogeneity across organs, with shared Postn<sup>+</sup> activated fibroblast subsets driving fibrogenesis. Emerging evidence links fibrosis to mechanical stress, metabolic rewiring, and non-coding RNA regulation, unveiling novel therapeutic targets. Innovative models and regenerative strategies - including senolytics, metabolic modulation, and in vivo reprogramming – hold promise to reverse fibrosis and promote tissue repair.