Cited by 219Eating Disorders and BehaviorsRegulation of Appetite and ObesityChild Nutrition and Feeding Issues

Bacterial ClpB heat-shock protein, an antigen-mimetic of the anorexigenic peptide α-MSH, at the origin of eating disorders

Open access
Tennoune, N, Chan, P, Breton, J, Legrand, R, Chabane, Y N, Akkermann, K, Järv, A, Ouelaa, W +12 more·2014·Translational Psychiatry

Abstract

The molecular mechanisms at the origin of eating disorders (EDs), including anorexia nervosa (AN), bulimia and binge-eating disorder (BED), are currently unknown. Previous data indicated that immunoglobulins (Igs) or autoantibodies (auto-Abs) reactive with α-melanocyte-stimulating hormone (α-MSH) are involved in regulation of feeding and emotion; however, the origin of such auto-Abs is unknown. Here, using proteomics, we identified ClpB heat-shock disaggregation chaperone protein of commensal gut bacteria Escherichia coli as a conformational antigen mimetic of α-MSH. We show that ClpB-immunized mice produce anti-ClpB IgG crossreactive with α-MSH, influencing food intake, body weight, anxiety and melanocortin receptor 4 signaling. Furthermore, chronic intragastric delivery of E. coli in mice decreased food intake and stimulated formation of ClpB- and α-MSH-reactive antibodies, while ClpB-deficient E. coli did not affect food intake or antibody levels. Finally, we show that plasma levels of anti-ClpB IgG crossreactive with α-MSH are increased in patients with AN, bulimia and BED, and that the ED Inventory-2 scores in ED patients correlate with anti-ClpB IgG and IgM, which is similar to our previous findings for α-MSH auto-Abs. In conclusion, this work shows that the bacterial ClpB protein, which is present in several commensal and pathogenic microorganisms, can be responsible for the production of auto-Abs crossreactive with α-MSH, associated with altered feeding and emotion in humans with ED. Our data suggest that ClpB-expressing gut microorganisms might be involved in the etiology of EDs.

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/tp.2014.98

Cites

48 of 48 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?

  • Chronic intragastric delivery of ClpB-expressing E. coli in mice stimulated production of α-MSH-reactive antibodies and decreased food intake.

    “chronic intragastric delivery of ClpB-expressing E. coli in mice stimulated the production of α-MSH-reactive antibodies and decreased food intake (Breton et al., 2016b;Tennoune et al., 2014).”

    From The Microbiota-Gut-Brain Axis (2019) · cites this paper as Tennoune et al., 2014

  • Autoantibody-induced interference with the central melanocortin system is one of the key microbiota-gut-brain mechanisms contributing to dysregulated appetite control in eating disorders.

    “Finally, data on the bacterial protein C1pB (produced by both commensal and pathogenic microorganisms) as a mimetic of α-MSH and its effects on activating host satiety pathways in rodents [47], as well as the elevated plasma concentration of anti-C1pB IgG that is cross-reactive with α-MSH in patients with eating disorders [48], accord with the notion that autoantibody-induced interference with the”

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

1 retracted

Flagged first, then by citations

Research works printed but not linked: 1

  1. Fetissov SO Neuropsychiatric Disorders and InfectionFatemi SH (ed). Taylor & Francis Books Ltd 2004 253 262

Cited by

Sorted by citations

Authors
Tennoune, N., Chan, P., Breton, J., Legrand, R., Chabane, Y. N., Akkermann, K., Järv, A., Ouelaa, W., Takagi, K., Ghouzali, I., Francois, M., Lucas, N., Bole-Feysot, C., Pestel-Caron, M., do Rego, J.-C., Vaudry, D., Harro, J., Dé, E., Déchelotte, P., & Fetissov, S. O.
Affiliations
  • Inserm (FR)
  • Institute for Research and Innovation in Biomedicine (FR)
  • Centre National de la Recherche Scientifique (FR)
  • Tartu University Hospital (EE)
Corresponding author
Fetissov, S O
Venue
Translational Psychiatry
Published
2014-10-07
Volume
4
Issue
10
Pages
e458-e458
ISSN
2158-3188 (ISSN-L)
OpenAlex
W2151670857
Cited by
218
References
48
Citations by year
2026: 14 · 2025: 17 · 2024: 27 · 2023: 21 · 2022: 21 · 2021: 22 · 2020: 15 · 2019: 16 · 2018: 13 · 2017: 15 · 2016: 17 · 2015: 18 · 2014: 2
FWCI
20.91
Type
journal article
Language
en
Open access
Locations
  • Translational Psychiatry (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Funders
  • European Commission
  • Région Normandie
  • Langley Research Center
  • Japan Society for the Promotion of Science (25670355)
  • Interreg
Topics
  • Social Sciences › Psychology › Clinical Psychology › Eating Disorders and Behaviors
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Psychiatry and Mental health › Child Nutrition and Feeding Issues
Keywords
alpha-melanocyte-stimulating hormone, autoantibodies, antigen mimicry, eating disorders, anorexia nervosa, bulimia nervosa, binge eating disorder, Escherichia coli, gut commensal bacteria, anxiety, dietary intake, gut microbiota, autoimmunity
MeSH terms
Adolescent, Adult, alpha-MSH, Animals, Feeding and Eating Disorders, Autoantibodies, Disease Models, Animal, Electrophoresis, Polyacrylamide Gel, Escherichia coli, Female, Heat-Shock Proteins, Humans, Male, Mice, Inbred C57BL, Immunoblotting, Escherichia coli Proteins, Endopeptidase Clp, Mice, Young Adult

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