Disrupted balance between pro-inflammatory lipid mediators and anti-inflammatory specialized pro-resolving mediators is linked to hyperinflammation in patients with alcoholic hepatitis

dc.contributor.authorLi, Wei
dc.contributor.authorXia, Ying
dc.contributor.authorYang, Jing
dc.contributor.authorSanyal, Arun J.
dc.contributor.authorShah, Vijay H.
dc.contributor.authorChalasani, Naga P.
dc.contributor.authorYu, Qigui
dc.contributor.departmentMicrobiology and Immunology, School of Medicine
dc.date.accessioned2025-01-27T18:12:50Z
dc.date.available2025-01-27T18:12:50Z
dc.date.issued2024-11-21
dc.description.abstractBackground: Alcoholic hepatitis (AH) is characterized by intense systemic and liver inflammation, posing significant risks of health complications and mortality. While inflammation is a crucial defense mechanism against injury and infection, its timely resolution is essential to prevent tissue damage and restore tissue homeostasis. The resolution of inflammation is primarily governed by specialized pro-resolving mediators (SPMs), lipid metabolites derived from w-6 and w-3 poly-unsaturated fatty acids (PUFAs). Currently, the balance between pro-inflammatory lipid mediators (PLMs) and SPMs in the w-6 and w-3 PUFA metabolic pathways and the impact of alcohol abstinence on profiles of PLMs and SPMs in AH patients are not well studied. Methods: In this study, we used LC-MS/MS and ELISA to quantify levels of lipid mediators (LMs) and their precursors in the plasma samples from 58 AH patients, 29 heavy drinkers without overt liver diseases (HDCs), and 35 healthy controls (HCs). Subsequently, we assessed correlations of altered LMs with clinical parameters and inflammatory mediators. Furthermore, we conducted a longitudinal study to analyze the effects of alcohol abstinence on LMs over 6- and 12-month follow-ups. Results: AH patients exhibited significantly higher plasma levels of w-6 PLMs (PGD2 and LTB4) and SPM RvE1 compared to HDCs or HCs. Conversely, the SPM LXA4 was significantly downregulated in AH patients. Some of these altered LMs were found to correlate with AH disease severity and various inflammatory cytokines. Particularly, the LTB4/LXA4 ratio was substantially elevated in AH patients relative to HDCs and HCs. This altered ratio displayed a positive correlation with the MELD score. Importantly, the majority of dysregulated LMs, particularly PLMs, were normalized following alcohol abstinence.
dc.eprint.versionFinal published version
dc.identifier.citationLi W, Xia Y, Yang J, et al. Disrupted balance between pro-inflammatory lipid mediators and anti-inflammatory specialized pro-resolving mediators is linked to hyperinflammation in patients with alcoholic hepatitis. Front Immunol. 2024;15:1377236. Published 2024 Nov 21. doi:10.3389/fimmu.2024.1377236
dc.identifier.urihttps://hdl.handle.net/1805/45515
dc.language.isoen_US
dc.publisherFrontiers Media
dc.relation.isversionof10.3389/fimmu.2024.1377236
dc.relation.journalFrontiers in Immunology
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttps://creativecommons.org/licenses/by/4.0
dc.sourcePMC
dc.subjectAlcoholic hepatitis
dc.subjectSpecialized pro-resolving mediator
dc.subjectLipid mediator
dc.subjectLongitudinal study
dc.subjectAlcohol abstinence
dc.titleDisrupted balance between pro-inflammatory lipid mediators and anti-inflammatory specialized pro-resolving mediators is linked to hyperinflammation in patients with alcoholic hepatitis
dc.typeArticle
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