EWSR1 as a regulatory target in hepatic stellate cell apoptosis and liver fibrosis therapy

TL;DR

This paper explores EWSR1 as a new target for treating liver fibrosis by influencing hepatic stellate cell behavior and restoring cell death sensitivity.

Contribution

EWSR1 is proposed as a novel molecular target for liver fibrosis therapy through its regulatory role in HSC activation and apoptosis.

Findings

EWSR1 modulates fibrosis via transcriptional and non-coding RNA mechanisms.

Inhibiting EWSR1 restores apoptosis in activated hepatic stellate cells.

EWSR1 integrates TGF-β and oxidative stress pathways in fibrogenesis.

Abstract

Liver fibrosis is a progressive condition driven by hepatic stellate cell (HSC) activation and resistance to apoptosis, culminating in excessive extracellular matrix (ECM) accumulation and organ dysfunction. Current antifibrotic therapies remain limited, as most target broad pathways such as TGF-β signaling or oxidative stress without addressing upstream regulators. Emerging evidence identifies the RNA-binding protein Ewing Sarcoma Breakpoint Region 1 (EWSR1) as a pivotal modulator of HSC fate. Through transcriptional regulation, non-coding RNA networks, and stress-granule dynamics, EWSR1 integrates TGF-β signaling, oxidative stress responses, and apoptosis resistance. Inhibition of EWSR1 has been reported in experimental models to suppress fibrosis-related gene expression and restore apoptotic sensitivity in activated HSCs, highlighting its therapeutic potential. This review critically synthesizes recent insights into EWSR1 biology, its crosstalk with profibrotic pathways, and its regulatory influence on HSC activation. We further compare EWSR1 with conventional antifibrotic approaches, outline research gaps, and propose directions for translational development. By positioning EWSR1 as a novel molecular node in fibrogenesis, this article underscores its promise as a next-generation therapeutic target for halting or reversing liver fibrosis.

•EWSR1 is identified as a novel regulator in hepatic stellate cell activation.•EWSR1 modulates fibrosis via transcriptional and non-coding RNA mechanisms.•Suppression of EWSR1 restores apoptosis sensitivity in activated HSCs.•Integrates EWSR1 signaling with TGF-β and oxidative stress pathways.•Positions EWSR1 as a potential antifibrotic therapeutic target.

EWSR1 is identified as a novel regulator in hepatic stellate cell activation.

EWSR1 modulates fibrosis via transcriptional and non-coding RNA mechanisms.

Suppression of EWSR1 restores apoptosis sensitivity in activated HSCs.

Integrates EWSR1 signaling with TGF-β and oxidative stress pathways.

Positions EWSR1 as a potential antifibrotic therapeutic target.

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