Inadequate remnant volume and regenerative ability of the liver pose life-threatening risks to patients after partial liver transplantation (PLT) or partial hepatectomy (PHx), while few clinical treatments focus on safely accelerating regeneration. Recently, we discovered that supplementing 5-aminolevulinate (5-ALA) improves liver cold adaptation and functional recovery, leading us to uncover a correlation between 5-ALA metabolic activities and post-PLT recovery. In a mouse 2/3 PHx model, 5-ALA supplements enhanced liver regeneration, promoting infiltration and polarization of anti-inflammatory macrophages via P53 signaling. Intriguingly, chemokine receptor CX3CR1 functions to counterbalance these effects. Genetic ablation or pharmacological inhibition of CX3CR1 (AZD8797; phase II trial candidate) augmented the macrophagic production of insulin-like growth factor 1 (IGF-1) and subsequent hepatocyte growth factor (HGF) production by hepatic stellate cells. Thus, short-term treatments with both 5-ALA and AZD8797 demonstrated pro-regeneration outcomes superior to 5-ALA-only treatments in mice after PHx. Overall, our findings may inspire safe and effective strategies to better treat PLT and PHx patients.
Pubmed ID: 37578861 RIS Download
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View all literature mentionsThis monoclonal targets CD11b
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View all literature mentionsThis monoclonal targets CD3 antibody [SP7]
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View all literature mentionsThis monoclonal targets Akt (pan) (C67E7) Rabbit mAb
View all literature mentionsThis polyclonal targets Phospho-Akt (Ser473)
View all literature mentionsThis monoclonal targets IGFBP1 (H-5)
View all literature mentionsThis monoclonal targets Human IGF1
View all literature mentionsThis monoclonal targets Cyclin D1
View all literature mentionsThis monoclonal targets beta-Actin
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View all literature mentionsThis monoclonal targets F4/80 antibody [CI:A3-1]
View all literature mentionsThis monoclonal targets PCNA
View all literature mentionsThis polyclonal targets Ki67 antibody - Proliferation Marker
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