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Induction and contribution of beta platelet‐derived growth factor signalling by hepatic stellate cells to liver regeneration after partial hepatectomy in mice

Hepatic stellate cells (HSCs) activate during injury to orchestrate the liver's inflammatory and fibrogenic responses. A critical feature of HSC activation is the rapid induction of beta platelet‐derived growth factor (β‐PDGFR), which drives cellular fibrogenesis and proliferation; in contrast, normal liver has minimal β‐PDGFR expression. While the role of β‐PDGFR is well established in liver injury, its expression and contribution during liver regeneration are unknown. The aim of this study was to determine whether β‐PDGFR is induced during liver regeneration following partial hepatectomy (pHx), and to define its contribution to the regenerative response.