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- W4283696643 abstract "Abstract The β 2 -adrenergic receptor (β 2 AR) is a G protein-coupled receptor (GPCR) that mediates the majority of cellular responses to external stimuli. Aberrant expression of β 2 AR results in various pathophysiological disorders, including tumorigenesis, but little is known about its role in liver regeneration. This study aims to investigate the impact and the underlying mechanism of β 2 AR in liver regeneration. Here, we found that β 2 AR was upregulated during liver regeneration induced by 70% PH. Deletion of β 2 AR in mice resulted in 62% mortality 2 days post-PH, decreased proliferative marker expression and impaired liver function throughout regeneration. Moreover, AAV8-mediated overexpression of β 2 AR in hepatocytes accelerated the regeneration process and increased target gene expression. Mechanistically, β 2 AR recruited G-protein-coupled receptor kinase 2 (GRK2) to the membrane and then formed a complex with c-met to transactivate c-met signaling, which triggered downstream extracellular regulated protein kinase (ERK) signaling activation and nuclear translocation. Inhibition of c-met with SU11274 or ERK with U0126 decreased β 2 AR overexpression-induced hepatocyte proliferation. Our findings revealed that β 2 AR might act as a critical mediator regulating liver regeneration by crosstalk with c-met and activation of ERK signaling." @default.
- W4283696643 created "2022-06-30" @default.
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- W4283696643 date "2022-06-27" @default.
- W4283696643 modified "2023-10-15" @default.
- W4283696643 title "β2-adrenergic receptor promotes liver regeneration partially through crosstalk with c-met" @default.
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- W4283696643 doi "https://doi.org/10.1038/s41419-022-04998-0" @default.
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