Evidence map›Paper›PMID 31062071›Full record

ArticleCellular and molecular life sciences : CMLS2019

Saturation of acyl chains converts cardiolipin from an antagonist to an activator of Toll-like receptor-4.

Malvina Pizzuto, Caroline Lonez, Alberto Baroja-Mazo, Helios Martínez-Banaclocha, Panagiotis Tourlomousis, Monique Gangloff, Pablo Pelegrin, Jean-Marie Ruysschaert, Nicholas J Gay, Clare E Bryant

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in Cellular and molecular life sciences : CMLS, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
2.2field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

34 citing papers in PubMed, 52 citations in OpenAlex.

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  12. Mechanisms of mitochondrial damage-associated molecular patterns associated with inflammatory response in cardiovascular diseases.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2025
    Review
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  15. Article
  16. Mitochondria in health, disease, and aging.Physiological reviews · 2023
    Review
  17. Review
  18. Review
  19. Resolution Potential of Necrotic Cell Death Pathways.International journal of molecular sciences · 2022
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 3 countries.

Malvina PizzutoStructure and Function of Biological Membranes, Université Libre de Bruxelles, Blvd du Triomphe Access 2, 1050, Brussels, Belgium. malvina.pizzuto@gmail.com.ORCID http://orcid.org/0000-0001-6330-6937
Caroline LonezStructure and Function of Biological Membranes, Université Libre de Bruxelles, Blvd du Triomphe Access 2, 1050, Brussels, Belgium.
Alberto Baroja-MazoMolecular Inflammation Group, Biomedical Research Institute of Murcia IMIB-Arrixaca, Clinical University Hospital Virgen de la Arrixaca, Carretera Buenavista s/n, 30120, Murcia, Spain.
Helios Martínez-BanaclochaMolecular Inflammation Group, Biomedical Research Institute of Murcia IMIB-Arrixaca, Clinical University Hospital Virgen de la Arrixaca, Carretera Buenavista s/n, 30120, Murcia, Spain.
Panagiotis TourlomousisDepartment of Veterinary Medicine, University of Cambridge, Madingley Rd, Cambridge, CB3 0ES, UK.
Monique GangloffDepartment of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA, UK.
Pablo PelegrinMolecular Inflammation Group, Biomedical Research Institute of Murcia IMIB-Arrixaca, Clinical University Hospital Virgen de la Arrixaca, Carretera Buenavista s/n, 30120, Murcia, Spain.
Jean-Marie RuysschaertStructure and Function of Biological Membranes, Université Libre de Bruxelles, Blvd du Triomphe Access 2, 1050, Brussels, Belgium.
Nicholas J GayDepartment of Biochemistry, University of Cambridge, 80 Tennis Court Road, Cambridge, CB2 1GA, UK.
Clare E BryantDepartment of Veterinary Medicine, University of Cambridge, Madingley Rd, Cambridge, CB3 0ES, UK.
University of Cambridge · GBInstituto Murciano de Investigación Biosanitaria · ESUniversité Libre de Bruxelles · BE

Funding

Biotechnology and Biological Sciences Research Council BB/H003916/1European Research Council ERC-2013-CoG 614578Fondation Philippe Wiener - Maurice Anspach N/AFonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture F3/5/5-MCF/XH/FC-17514H2020 Marie Skłodowska-Curie Actions TLR4-CAT PIEF-GA-2012-326481Medical Research Council MR/P02260X/1Medical Research Council MR/S002340/1Medical Research Council RG87390Wellcome TrustWellcome Trust 108045/Z/15/ZWellcome Trust WT100321/z/12/Z
6 · The paper itself

Abstract

Cardiolipins (CLs) are tetra-acylated diphosphatidylglycerols found in bacteria, yeast, plants, and animals. In healthy mammals, CLs are unsaturated, whereas saturated CLs are found in blood cells from Barth syndrome patients and in some Gram-positive bacteria. Here, we show that unsaturated but not saturated CLs block LPS-induced NF-κB activation, TNF-α and IP-10 secretion in human and murine macrophages, as well as LPS-induced TNF-α and IL-1β release in human blood mononuclear cells. Using HEK293 cells transfected with Toll-like receptor 4 (TLR4) and its co-receptor Myeloid Differentiation 2 (MD2), we demonstrate that unsaturated CLs compete with LPS for binding TLR4/MD2 preventing its activation, whereas saturated CLs are TLR4/MD2 agonists. As a consequence, saturated CLs induce a pro-inflammatory response in macrophages characterized by TNF-α and IP-10 secretion, and activate the alternative NLRP3 inflammasome pathway in human blood-derived monocytes. Thus, we identify that double bonds discriminate between anti- and pro-inflammatory properties of tetra-acylated molecules, providing a rationale for the development of TLR4 activators and inhibitors for use as vaccine adjuvants or in the treatment of TLR4-related diseases.

Indexed as

AnimalsAnti-Infective AgentsBinding, CompetitiveCardiolipinsCell SurvivalChemokine CXCL10HEK293 CellsHumansLipopolysaccharide ReceptorsLipopolysaccharidesLymphocyte Antigen 96MacrophagesMiceMonocytesNF-kappa BNLR Family, Pyrin Domain-Containing 3 ProteinAnti-Infective AgentsCardiolipinsChemokine CXCL10CXCL10 protein, humanLipopolysaccharide ReceptorsLipopolysaccharidesLymphocyte Antigen 96NF-kappa BNLR Family, Pyrin Domain-Containing 3 ProteinToll-Like Receptor 4Tumor Necrosis Factor-alphaAnti-inflammatoryBarth syndromeCardiolipinInflammation resolutionTLR4-agonistTLR4-antagonistToll-like receptor (TLR)Vaccine adjuvant

Identifiers

PMID31062071
PMCPMC6697720
OpenAlexW2944232397

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.