Cited by 281Immune Response and InflammationAdvanced Glycation End Products researchInflammation biomarkers and pathways

High Mobility Group Box 1 Protein Binding to Lipopolysaccharide Facilitates Transfer of Lipopolysaccharide to CD14 and Enhances Lipopolysaccharide-Mediated TNF-α Production in Human Monocytes

Youn, Ju Ho, Oh, Young Joo, Kim, Eun Sook, Choi, Ji Eun, Shin, Jeon-Soo·2008·The Journal of Immunology

Abstract

LPS-binding protein (LBP) is a central mediator that transfers LPS to CD14 to initiate TLR4-mediated proinflammatory response. However, a possibility of another LPS transfer molecule has been suggested because LBP-deficient mice showed almost normal inflammatory response after LPS injection. In this study, we describe the novel finding that high mobility group box 1 protein (HMGB1) recently identified as a mediator of sepsis has a function of LPS transfer for a proinflammatory response. We used ELISA and surface plasmon resonance to show that HMGB1 binds LPS in a concentration-dependent manner and that the binding is stronger to lipid A moiety than to the polysaccharide moiety of LPS. This binding was inhibited by LBP and polymyxin B. Using native PAGE and fluorescence-based LPS transfer analyses, we show that HMGB1 can catalytically disaggregate and transfer LPS to both soluble CD14 protein and to human PBMCs in a dose-dependent manner. However, this effect was dramatically reduced to the baseline level when HMGB1 was heat inactivated. Furthermore, a mixture of HMGB1 and LPS treatment results in a higher increase in TNF-α production in human PBMCs and peripheral blood monocytes than LPS or HMGB1 treatment alone or their summation. Thus, we propose that HMGB1 plays an important role in Gram-negative sepsis by catalyzing movement of LPS monomers from LPS aggregates to CD14 to initiate a TLR4-mediated proinflammatory response.

Integrity signals

Registry

Crossref · 10.4049/jimmunol.180.7.5067

Cites

55 of 55 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

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?

  • The relevance of observations that purified endogenous molecules induce pro-inflammatory cytokines through TLR2 and/or TLR4 has been questioned because several of these proteins, including HSPs and HMGB1, bind lipopolysaccharide (LPS), making interpretation of pro-inflammatory responses difficult.

    “the relevance of these observations has previously been questioned because of the possibility of microbial contamination: several of these proteins, including HSPs and HMGb1, bind lipopolysaccharide (LPS), making the interpretation of pro-inflammatory responses by these molecules difficult28–30.”

    From Sterile inflammation: sensing and reacting to damage (2010) · cites this paper as [30]

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Youn, J. H., Oh, Y. J., Kim, E. S., Choi, J. E., & Shin, J.-S.
Affiliations
  • Yonsei University (KR)
  • Seoul National University (KR)
Venue
The Journal of Immunology
Published
2008-04-01
Volume
180
Issue
7
Pages
5067-5074
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W1627944730
Cited by
281
References
55
Citations by year
2026: 6 · 2025: 7 · 2024: 8 · 2023: 7 · 2022: 11 · 2021: 9 · 2020: 15 · 2019: 13 · 2018: 18 · 2017: 10 · 2016: 14 · 2015: 22 · 2014: 20 · 2013: 20 · 2012: 26
FWCI
10.43
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Immunology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Advanced Glycation End Products research
  • Life Sciences › Immunology and Microbiology › Immunology › Inflammation biomarkers and pathways
Keywords
HMGB1, lipopolysaccharide, CD14, TLR4, TNF-alpha production, lipid A, sepsis, monocytes, LPS-binding protein, polymyxin B, gram-negative sepsis, pro-inflammatory response
MeSH terms
Animals, Catalysis, Cricetulus, Cricetinae, Humans, Leukocytes, Lipopolysaccharides, Micelles, Monocytes, Protein Binding, Solubility, Tumor Necrosis Factor-alpha, CHO Cells, Lipopolysaccharide Receptors, Surface Plasmon Resonance, HMGB1 Protein

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