Abstract：
:The lipopolysaccharide (LPS)- toll-like receptor-4 (TLR4) pathway plays an important role in liver failure. Recombinant alkaline phosphatase (recAP) deactivates LPS. The aim of this study was to determine whether recAP prevents the progression of acute and acute-on-chronic liver failure (ACLF). Eight groups of rats were studied 4-weeks after sham surgery or bile duct ligation and were injected with saline or LPS to mimic ACLF. Acute liver failure was induced with Galactosamine-LPS and in both models animals were treated with recAP prior to LPS administration. In the ACLF model, the severity of liver dysfunction and brain edema was attenuated by recAP, associated with reduction in cytokines, chemokines, liver cell death, and brain water. The activity of LPS was reduced by recAP. The treatment was not effective in acute liver failure. Hepatic TLR4 expression was reduced by recAP in ACLF but not acute liver failure. Increased sensitivity to endotoxins in cirrhosis is associated with upregulation of hepatic TLR4, which explains susceptibility to development of ACLF whereas acute liver failure is likely due to direct hepatoxicity. RecAP prevents multiple organ injury by reducing receptor expression and is a potential novel treatment option for prevention of ACLF but not acute liver failure.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Engelmann C,Adebayo D,Oria M,De Chiara F,Novelli S,Habtesion A,Davies N,Andreola F,Jalan Rdoi
10.1038/s41598-019-57284-zsubject
Has Abstractpub_date
2020-01-15 00:00:00pages
389issue
1issn
2045-2322pii
10.1038/s41598-019-57284-zjournal_volume
10pub_type
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