Adipocyte inflammation is the primary driver of hepatic insulin resistance in a human iPSC-based microphysiological system.

ABSTRACT: Interactions between adipose tissue, liver and immune system are at the center of metabolic dysfunction-associated steatotic liver disease and type 2 diabetes. To address the need for an accurate in vitro model, we establish an interconnected microphysiological system (MPS) containing white adipocytes, hepatocytes and proinflammatory macrophages derived from isogenic human induced pluripotent stem cells. Using this MPS, we find that increasing the adipocyte-to-hepatocyte ratio moderately affects hepatocyte function, whereas macrophage-induced adipocyte inflammation causes lipid accumulation in hepatocytes and MPS-wide insulin resistance, corresponding to initiation of metabolic dysfunction-associated steatotic liver disease. We also use our MPS to identify and characterize pharmacological

SUBMITTER: Qi L 

PROVIDER: S-EPMC11393072 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature