Cited by 75Organ Transplantation Techniques and OutcomesImmune Response and InflammationCell death mechanisms and regulation

Mitochondrial Damage-Associated Molecular Patterns (MTDs) Are Released during Hepatic Ischemia Reperfusion and Induce Inflammatory Responses

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Hu, Qianni, Wood, Caroline Ruth, Cimen, Sanem, Venkatachalam, Ananda Baskaran, Alwayn, Ian Patrick Joseph·2015·PLOS ONE

Abstract

Ischemia / reperfusion injury (IRI) during the course of liver transplantation enhances the immunogenicity of allografts and thus impacts overall graft outcome. This sterile inflammatory insult is known to activate innate immunity and propagate organ damage through the recognition of damage-associate molecular pattern (DAMP) molecules. The purpose of the present study was to investigate the role of mitochondrial DAMPs (MTDs) in the pathogenesis of hepatic IRI. Using in vitro models we observed that levels of MTDs were significantly higher in both transplantation-associated and warm IR, and that co-culture of MTDs with human and rat hepatocytes significantly increased cell death. MTDs were also released in an in vivo rat model of hepatic IRI and associated with increased secretion of inflammatory cytokines (TNF-α, IL-6, and IL-10) and increased liver injury compared to the sham group. Our results suggest that hepatic IR results in a significant increase of MTDs both in vitro and in vivo suggesting that MTDs may serve as a novel marker in hepatic IRI. Co-culture of MTDs with hepatocytes showed a decrease in cell viability in a concentration dependent manner, which indicates that MTDs is a toxic mediator participating in the pathogenesis of liver IR injury.

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  1. [24]Bamboat ZM, Balachandran VP, Ocuin LM, Obaid H, Plitas G, DeMatteo RP (2010) Toll-like receptor 9 inhibition confers protection from liver ischemia-reperfusion injury. Hepatology 51: 621– 632. 10.1002/hep.23365 19902481 PMC3164814 · DOI
  2. [37]Lemasters JJ (2009) Hypoxic, Ischemic and reperfusion injury to liver The Liver: Biology and Pathobiology. Fourth ed: Wiley.
  3. [42]Liu B, Qian JM, Wang QB, Wang FR, Ma ZY, Qiao Y (2014) Butyrate Protects Rat Liver against Total Hepatic Ischemia Reperfusion Injury with Bowel Congestion. Plos One 9. PMC4149529 25171217
  4. [44]Huang H, Evankovich J, Yan W, Nace G, Zhang LM, Ross M, et al (2011) Endogenous Histones Function as Alarmins in Sterile Inflammatory Liver Injury Through Toll-like Receptor 9 in Mice. Hepatology 54: 999– 1008. 10.1002/hep.24501 21721026 PMC3213322 · DOI

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Authors
Hu, Q., Wood, C. R., Cimen, S., Venkatachalam, A. B., & Alwayn, I. P. J.
Affiliations
Dalhousie University (CA)
Corresponding author
Alwayn, Ian Patrick Joseph
Venue
PLOS ONE
Published
2015-10-09
Volume
10
Issue
10
Pages
e0140105
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2207964139
Cited by
75
References
44
Citations by year
2026: 5 · 2025: 6 · 2024: 10 · 2023: 3 · 2022: 5 · 2021: 8 · 2020: 7 · 2019: 8 · 2018: 15 · 2017: 6 · 2016: 2
FWCI
7.73
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • Canadian Institutes of Health Research (RES0017362)
  • National Institute of Environmental Health Sciences (R03ES017362)
Topics
  • Health Sciences › Medicine › Surgery › Organ Transplantation Techniques and Outcomes
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
Keywords
mitochondrial damage-associated molecular patterns, hepatic ischemia-reperfusion injury, liver transplantation, sterile inflammation, innate immunity, hepatocyte death, inflammatory cytokines, TNF-α, interleukin-6, IL-10, liver injury, allograft immunogenicity, biomarkers
MeSH terms
Animals, Cell Line, Cell Survival, DNA, Mitochondrial, Humans, Inflammation, Ischemia, Liver, Male, Mitochondria, Biomarkers, Reperfusion Injury, Liver Transplantation, Cytokines, Apoptosis, Coculture Techniques, Hepatocytes, Rats

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