Immunolipidomics reveals a globoside network during the resolution of pro-inflammatory response in human macrophages
File(s)Accepted version with Suppl Figures.pdf (1.18 MB)
Accepted version
Author(s)
Behmoaras, Jacques
Type
Journal Article
Abstract
Toll-like receptor 4 (TLR4)-mediated changes in macrophages reshape intracellular lipid pools to coordinate an effective innate immune response. Although this has been previously well-studied in different model systems, it remains incompletely understood in primary human macrophages. Here we report time-dependent lipidomic and transcriptomic responses to lipopolysaccharide (LPS) in primary human macrophages from healthy donors. We grouped the variation of ~200 individual lipid species measured by LC-MS/MS into eight temporal clusters. Among all other lipids, glycosphingolipids (glycoSP) and cholesteryl esters (CE) showed a sharp increase during the resolution phase (between 8h or 16h post LPS). GlycoSP, belonging to the globoside family (Gb3 and Gb4), showed the greatest inter-individual variability among all lipids quantified. Integrative network analysis between GlycoSP/CEs levels and genome-wide transcripts, identified Gb4 d18:1/16:0 and CE 20:4 association with subnetworks enriched for T cell receptor signaling (PDCD1, CD86, PTPRC, CD247, IFNG) and DC-SIGN signaling (RAF1, CD209), respectively. Our findings reveal Gb3 and Gb4 globosides as sphingolipids associated with the resolution phase of inflammatory response in human macrophages.
Date Issued
2022-06-30
Date Acceptance
2022-06-06
Citation
Frontiers in Immunology, 2022, 13
ISSN
1664-3224
Publisher
Frontiers Media
Journal / Book Title
Frontiers in Immunology
Volume
13
Copyright Statement
© 2022 Muralidharan, Torta, Lin, Olona, Bagnati, Moreno-Moral, Ko, Ji, Burla, Wenk, Rodrigues, Petretto and Behmoaras. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
License URL
Sponsor
Medical Research Council (MRC)
Medical Research Council (MRC)
Medical Research Council (MRC)
Identifier
https://www.frontiersin.org/articles/10.3389/fimmu.2022.926220/full
Grant Number
MR/M004716/1
MR/N01121X/1
EP/V520354/1
Subjects
Science & Technology
Life Sciences & Biomedicine
Immunology
lipidomics
human macrophages
transcriptomics
globosides
network analysis
FATTY-ACID SYNTHESIS
LIPID-METABOLISM
LIPOPOLYSACCHARIDE
PYRUVATE
ACCUMULATION
POLARIZATION
CHOLESTEROL
INDUCTION
RAW264.7
globosides
human macrophages
lipidomics
network analysis
transcriptomics
Chromatography, Liquid
Globosides
Humans
Lipopolysaccharides
Macrophages
Tandem Mass Spectrometry
Macrophages
Humans
Globosides
Lipopolysaccharides
Chromatography, Liquid
Tandem Mass Spectrometry
1107 Immunology
1108 Medical Microbiology
Publication Status
Published