Cited by 80Systemic Lupus Erythematosus ResearchExtracellular vesicles in diseaseImmune Response and Inflammation

Microparticles as a source of extracellular DNA

Open access
Pisetsky, David S., Gauley, Julie, Ullal, Anirudh J.·2011·Immunologic Research

Abstract

Microparticles are small membrane-bound vesicles that display pro-inflammatory and pro-thrombotic activities important in the pathogenesis of a wide variety of diseases. These particles are released from activated and dying cells and incorporate nuclear and cytoplasmic molecules for extracellular export. Of these molecules, DNA is a central autoantigen in systemic lupus erythematosus (SLE). As studies in our laboratory show, DNA occurs prominently in microparticles, translocating into these structures during apoptotic cell death. This DNA is antigenically active and can bind to lupus anti-DNA autoantibodies. These findings suggest that microparticles are an important source of extracellular DNA to serve as an autoantigen and autoadjuvant in SLE.

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  • Detection of mitochondrial motives by innate and adaptive immunity might elicit potent pro-inflammatory responses.

    “Given the bacterial features of mitochondria, the detection of mitochondrial motives by cells of the innate and adaptive immunity might elicit potent pro-inflammatory responses147,276,277.”

    From The role of mitochondria in rheumatic diseases (2022) · cites this paper as [276]

    The Introduction discusses immune responses to bacterial CpG motifs and to DNA-containing immune complexes, but it does not address mitochondrial motifs or their detection by innate and adaptive immune cells. Searches for mitochondrial DNA, mitochondria, and mitochondrial motifs found no passage supporting the attributed claim. The available passages have no page numbers. (LLM, conf=0.75)

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Authors
Pisetsky, D. S., Gauley, J., & Ullal, A. J.
Affiliations
  • Durham VA Medical Center (US)
  • Duke Medical Center (US)
Corresponding author
Pisetsky, David S.
Venue
Immunologic Research
Published
2010-12-04
Volume
49
Issue
1-3
Pages
227-234
ISSN
  • 0257-277X (ISSN-L)
  • 1559-0755
OpenAlex
W2037870966
Cited by
80
References
25
Citations by year
2026: 2 · 2025: 2 · 2024: 7 · 2023: 3 · 2022: 6 · 2021: 2 · 2020: 5 · 2019: 3 · 2018: 4 · 2017: 5 · 2016: 9 · 2015: 9 · 2014: 5 · 2013: 8 · 2012: 8
FWCI
4.02
Type
journal article
Language
en
Open access
Locations
  • Immunologic Research (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Institute of Allergy and Infectious Diseases (AI083923, R21AI082402, R21AI083923, AI082402)
Topics
  • Health Sciences › Medicine › Rheumatology › Systemic Lupus Erythematosus Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Extracellular vesicles in disease
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
Keywords
microparticles, extracellular DNA, systemic lupus erythematosus, autoantigens, apoptosis, membrane vesicles, autoimmunity
MeSH terms
Antibodies, Antinuclear, Autoantibodies, Autoantigens, Cell Line, DNA, Extracellular Space, Humans, Lupus Erythematosus, Systemic, Cytokines, Apoptosis, Toll-Like Receptors, Cell-Derived Microparticles

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