Hepatokine fibrinogen-like protein 1 drives liver-kidney crosstalk to promote renal fibrosis

Hepatokine FGL1 mediates liver-kidney crosstalk in renal fibrosis. Upregulated by circulating inflammatory cytokines post-injury, it binds ALK5 to potentiate TGF-β signaling and promotes fibrotic progression, presenting a promising target for CKD.