Cited by 627Cell death mechanisms and regulationImmune Response and InflammationPhagocytosis and Immune Regulation

Induction of Immunological Tolerance by Apoptotic Cells Requires Caspase-Dependent Oxidation of High-Mobility Group Box-1 Protein

Open access
Kazama, Hirotaka, Ricci, Jean-Ehrland, Herndon, John M., Hoppe, George, Green, Douglas R., Ferguson, Thomas A.·2008·Immunity

Abstract

The mammalian immune system discriminates between modes of cell death; necrosis often results in inflammation and adaptive immunity, whereas apoptosis tends to be anti-inflammatory and promote immune tolerance. We have examined apoptosis for the features responsible for tolerance; specifically, we looked at the roles of caspases and mitochondria. Our results show that caspase activation targeted the mitochondria to produce reactive oxygen species (ROS), which were critical to tolerance induction by apoptotic cells. ROS oxidized the potential danger signal high-mobility group box-1 protein (HMGB1) released from dying cells and thereby neutralized its stimulatory activity. Apoptotic cells failed to induce tolerance and instead stimulated immune responses by scavenging or by mutating a mitochondrial caspase target protein when ROS activity was prohibited. Similarly, blocking sites of oxidation in HMGB1 prevented tolerance induction by apoptotic cells. These results suggest that caspase-orchestrated mitochondrial events determine the impact of apoptotic cells on the immune response.

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 · 10.1016/j.immuni.2008.05.013

Cites

60 of 60 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?

  • HMGB1 biological activities can switch from pro-inflammatory to anti-inflammatory depending on variables including oxidation state.

    “That said, it should be noted that biological activities of HMGB1 may flip from pro-inflammatory to anti-inflammatory depending on multiple variables including its oxidation state [917–923].”
  • Potential immunogenic signals from dying cells include surface-exposed proteins such as calreticulin and heat shock proteins, lipid moieties such as phosphatidylserine that flip to the outer leaflet, released proteins such as HMGB1, and extracellular nucleic acids and their degradation products (oligonucleotides, nucleotides, nucleosides, urate).

    “Potential immunogenic signals emanating from dying cells include proteins that appear at the surface of stressed and dying cells (such as calreticulin and heat shock proteins, HSPs), lipid moieties that flip from the inner plasma membrane leaflet to the outer leaflet (such as phosphatidylserine) 38,60, proteins that are released into the supernatant of cells (such as HMGB1) 51, as well as nucleic”

    From Immunogenic and tolerogenic cell death (2009) · cites this paper as [51]

  • Inhibition of caspases affects exposure of find-me signals, eat-me signals, secretion of DAMPs, and exposure of CRT on anthracyclin-treated cancer cells.

    “The inhibition of caspases affects the exposure of find-me signals 40, eat-me signals 40 (Box 4), and the secretion of DAMPs51 from dying cells, as well as the exposure of CRT on anthracyclin-treated cancer cells60.”

    From Immunogenic and tolerogenic cell death (2009) · cites this paper as [51]

  • HMGB1 may act on RAGE and possibly on TLR2 and TLR4, although the TLR action is controversial.

    “Thus, HMGB1 may act on the receptor for advanced glycated endproducts (RAGEs) and possibly the toll-like receptors (TLRs) including TLR2 and TLR4 51,52, although the latter are controversial 53.”

    From Immunogenic and tolerogenic cell death (2009) · cites this paper as [51]

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
Kazama, H., Ricci, J.-E., Herndon, J. M., Hoppe, G., Green, D. R., & Ferguson, T. A.
Affiliations
  • Washington University in St. Louis (US)
  • Université Côte d'Azur (FR)
  • Cleveland Clinic (US)
  • St. Jude Children's Research Hospital (US)
Corresponding author
Ferguson, Thomas A.
Venue
Immunity
Publisher
Elsevier BV
Published
2008-07
Volume
29
Issue
1
Pages
21-32
ISSN
1074-7613 (ISSN-L)
OpenAlex
W2084623259
Cited by
627
References
60
Citations by year
2026: 24 · 2025: 23 · 2024: 33 · 2023: 35 · 2022: 24 · 2021: 38 · 2020: 32 · 2019: 26 · 2018: 33 · 2017: 31 · 2016: 20 · 2015: 44 · 2014: 47 · 2013: 43 · 2012: 34
FWCI
19.04
Type
journal article
Language
en
Open access
Locations
  • Immunity (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Research to Prevent Blindness (EY02687)
  • National Institutes of Health (AI44848, EY02687, EY06765)
  • National Eye Institute (EY 02687, P30EY002687, EY 015570, F32EY006765, EY06765, R01EY015570, R01EY006765)
  • National Institute of Allergy and Infectious Diseases (AI44848, R01AI044828, R01AI040646)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Immunology and Microbiology › Immunology › Phagocytosis and Immune Regulation
Keywords
immune tolerance, apoptotic cells, caspases, HMGB1, high mobility group box 1 protein, reactive oxygen species, oxidative modification, damage-associated molecular patterns, necrosis, tolerance induction
MeSH terms
Animals, Dendritic Cells, HeLa Cells, Humans, Immune Tolerance, Mice, Inbred C57BL, Mitochondria, Oxidation-Reduction, Immunoblotting, Apoptosis, Reactive Oxygen Species, Caspases, HMGB1 Protein, Mice

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