Cited by 3,812Immune Response and InflammationInflammation biomarkers and pathwaysSepsis Diagnosis and Treatment

Circulating mitochondrial DAMPs cause inflammatory responses to injury

Open access
Zhang, Qin, Raoof, Mustafa, Chen, Yu, Sumi, Yuka, Sursal, Tolga, Junger, Wolfgang, Brohi, Karim, Itagaki, Kiyoshi +1 more·2010·Nature

Abstract

Injury causes a systemic inflammatory response syndrome (SIRS) that is clinically much like sepsis. Microbial pathogen-associated molecular patterns (PAMPs) activate innate immunocytes through pattern recognition receptors. Similarly, cellular injury can release endogenous 'damage'-associated molecular patterns (DAMPs) that activate innate immunity. Mitochondria are evolutionary endosymbionts that were derived from bacteria and so might bear bacterial molecular motifs. Here we show that injury releases mitochondrial DAMPs (MTDs) into the circulation with functionally important immune consequences. MTDs include formyl peptides and mitochondrial DNA. These activate human polymorphonuclear neutrophils (PMNs) through formyl peptide receptor-1 and Toll-like receptor (TLR) 9, respectively. MTDs promote PMN Ca(2+) flux and phosphorylation of mitogen-activated protein (MAP) kinases, thus leading to PMN migration and degranulation in vitro and in vivo. Circulating MTDs can elicit neutrophil-mediated organ injury. Cellular disruption by trauma releases mitochondrial DAMPs with evolutionarily conserved similarities to bacterial PAMPs into the circulation. These signal through innate immune pathways identical to those activated in sepsis to create a sepsis-like state. The release of such mitochondrial 'enemies within' by cellular injury is a key link between trauma, inflammation and SIRS.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/nature08780

Cites

34 of 34 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Mitochondria express biomolecules resembling prokaryotic molecules, such as cardiolipin, double-stranded hypomethylated DNA and N-formylated peptides.

    “these organelles express biomolecules that resemble those expressed by prokaryotes, such as cardiolipin, double-stranded-hypomethylated DNA and N-formylated peptides12,13”

    From The role of mitochondria in rheumatic diseases (2022) · cites this paper as [13]

    The paper’s Abstract says mitochondrial DNA resembles bacterial DNA in having nonmethylated CpG motifs and identifies mitochondrial formyl peptides as bacterial-like molecular signatures. It does not identify cardiolipin among those signatures or specify that the DNA is double-stranded; those details are not supported by our copy. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • In human neutrophils, FPR1 and FPR2 binding to N-formylated peptides triggers Ca2+ release and leads to neutrophil migration and activation.

    “In human neutrophils, the binding of FPR1 and FPR2 to N-formylated peptides triggers the release of Ca2+ into the cytosol and ultimately leads to the migration and activation of neutrophils13”

    From The role of mitochondria in rheumatic diseases (2022) · cites this paper as [13]

    The paper reports that formyl peptides signal through FPR1 and FPRL-1 and that human neutrophils respond to mitochondrial DAMPs with increased intracellular calcium, activation, and migration (Abstract; page not provided). But its experiments attribute these calcium and migration responses to FPR1: blocking FPR1 inhibits them, while an FPRL-1 control antibody has no effect on the calcium response. The copy therefore does not establish the claimed role for both receptors in that response. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Mitochondria are considered to derive from endosymbiosis of an α-proteobacterium, providing the organelles many bacterial features.

    “Mitochondria are considered as deriving from the endosymbiosis of an α-synfular; proteobacterium (3, 4), providing the organelles many bacterial features (3, 5–9).”

    From Autoantibodies in Systemic Lupus Erythematosus Target Mitochondrial RNA (2019) · cites this paper as [9]

    The Abstract (page not supplied) describes mitochondria as bacterial-derived endosymbionts and identifies bacterial-like features, including formyl peptides and mtDNA motifs. Our copy does not specify that the bacterial ancestor was an α-proteobacterium. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • Cardiolipin, N-formylated peptides, mtDNA, ATP and reactive oxygen species are known mitochondrial damage-associated molecular patterns.

    “Cardiolipin, N-formylated peptides, mtDNA, ATP and reactive oxygen species are known mitochondrial damage-associated molecular patterns (9, 28–30).”

    From Autoantibodies in Systemic Lupus Erythematosus Target Mitochondrial RNA (2019) · cites this paper as [9]

    The Abstract (page unavailable) identifies N-formylated peptides and mtDNA as mitochondrial DAMPs. It does not identify cardiolipin or reactive oxygen species as such; it also reports that ATP was undetectable in the tested mitochondrial DAMP preparations and that removing ATP did not change their activity. Thus this source supports only part of the cited list. (LLM, conf=0.90)

    Experimental — accuracy not yet measured
  • Mitochondrial debris were observed in blood in the Twin Study, and mitochondrial DAMPs activate innate immune pathways.

    “Mitochondrial debris were observed in blood in the Twin Study (Garrett-Bakelman et al., 2019) and mitochondrial damage-associated molecular patterns (DAMPs) activate innate immune pathways (Banoth and Cassel, 2018; Zhang et al., 2010).”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Zhang, Q., Raoof, M., Chen, Y., Sumi, Y., Sursal, T., Junger, W., Brohi, K., Itagaki, K., & Hauser, C. J.
Affiliations
  • Beth Israel Deaconess Medical Center (US)
  • Queen Mary University of London (GB)
Corresponding author
Hauser, Carl J.
Venue
Nature
Published
2010-03
Volume
464
Issue
7285
Pages
104-107
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2134219545
Cited by
3,812
References
34
Citations by year
2026: 253 · 2025: 254 · 2024: 268 · 2023: 266 · 2022: 267 · 2021: 294 · 2020: 275 · 2019: 243 · 2018: 246 · 2017: 252 · 2016: 248 · 2015: 230 · 2014: 196 · 2013: 176 · 2012: 148
FWCI
70.40
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • U.S. Department of Defense
  • National Institute of General Medical Sciences (R01GM051477, R01GM059179)
  • Congressionally Directed Medical Research Programs
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Immunology and Microbiology › Immunology › Inflammation biomarkers and pathways
  • Health Sciences › Medicine › Epidemiology › Sepsis Diagnosis and Treatment
Keywords
mitochondrial DAMPs, mitochondrial damage-associated molecular patterns, mitochondrial DNA, formyl peptides, FPR1, TLR9, neutrophils, systemic inflammatory response syndrome, trauma (physical injury), innate immunity, neutrophil degranulation, MAPK signaling, target organ damage
MeSH terms
Animals, Cells, Cultured, DNA, Mitochondrial, Femur, Humans, Immunity, Innate, Liver, Male, Mitochondria, N-Formylmethionine Leucyl-Phenylalanine, Neutrophils, Phosphorylation, Wounds and Injuries, Rats, Sprague-Dawley, Muscle, Skeletal, Systemic Inflammatory Response Syndrome, Sepsis, CpG Islands, Calcium Signaling, Mitogen-Activated Protein Kinases, Receptors, Formyl Peptide, Fractures, Bone, Toll-Like Receptor 9, Rats, Acute Lung Injury

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review