Liver Sinusoidal Endothelial Cells Promote Metabolic Dysfunction-associated Steatohepatitis Progression via Interleukin-1R1-mediated Chemokine Production Induced by Macrophage-derived Interleukin-1β.

ABSTRACT:

Background & aims

Interleukin (IL)-1β is a key cytokine in hepatitis-related inflammation, but its role in metabolic dysfunction-associated steatotic liver disease (MASLD) or steatohepatitis (MASH) remains unclear. This study investigated IL-1β-mediated interactions in nonparenchymal liver cells to elucidate their contributions to pathological MASH progression.

Methods

We used the THP-1 monocyte-derived macrophage line and TMNK-1 liver sinusoidal endothelial cell (LSEC) line for in vitro assays. Endothelial cell-specific Il1r1-knockout (Il1r1^ΔEC) and systemic Cxcl10-knockout (Cxcl10^-/-) mice were subjected to a Western diet (WD) to establish a MASH model. An additional WD-fed cohort received the IL1R1 antagonist anakinra during the final 4 weeks. RNA se

SUBMITTER: Fukumoto K 

PROVIDER: S-EPMC12865640 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature