Cited by 251Heat shock proteins researchImmune Response and InflammationS100 Proteins and Annexins

Releasing signals, secretory pathways, and immune function of endogenous extracellular heat shock protein 72

Johnson, John D, Fleshner, Monika·2005·Journal of Leukocyte Biology

Abstract

Heat shock proteins (Hsp) were first characterized as intracellular proteins, which function to limit protein aggregation, facilitate protein refolding, and chaperone proteins. During times of cellular stress, intracellular Hsp levels increase to provide cellular protection. Recently, it has been recognized that Hsp, particularly Hsp72, are also found extracellularly (eHsp72), where they exhibit potent immunomodulatory effects on innate and acquired immunity. Circulating eHsp72 levels also greatly increase during times of stress (i.e., when an organism is exposed to a physical/psychological stressor or suffers from various pathological conditions). It has been proposed that elevated eHsp72 serves a protective role by facilitating immunological responses during times of increased risk of pathogenic challenge and/or tissue damage. This review focuses on the in vivo releasing signals and immunomodulatory function(s) of endogenous eHsp72. In addition, we present data that emphasize the importance of caution when conducting in vitro immunological tests of Hsp72 function.

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Registry

Crossref · 10.1189/jlb.0905523

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  • The release of Hsp72 after tailshock is dependent on α-adrenergic, but not β- or glucocorticoid, receptor signaling.

    “the release of Hsp72 (a possible DAMP) after tailshock is dependent on α-adrenergic, but not βor glucocorticoid, receptor signaling (Johnson et al, 2005;Johnson and Fleshner, 2006).”

    From Danger Signals and Inflammasomes: Stress-Evoked Sterile Inflammation in Mood Disorders (2017) · cites this paper as Johnson and Fleshner, 2006

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Authors
Johnson, J. D., & Fleshner, M.
Affiliations
University of Colorado Boulder (US)
Corresponding author
Fleshner, Monika
Venue
Journal of Leukocyte Biology
Published
2005-12-30
Volume
79
Issue
3
Pages
425-434
ISSN
  • 0741-5400 (ISSN-L)
  • 1938-3673
OpenAlex
W2165218249
Cited by
251
References
148
Citations by year
2026: 5 · 2025: 2 · 2024: 2 · 2023: 8 · 2022: 7 · 2021: 6 · 2020: 8 · 2019: 8 · 2018: 12 · 2017: 13 · 2016: 12 · 2015: 21 · 2014: 18 · 2013: 18 · 2012: 20
FWCI
1.02
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Leukocyte Biology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Heat shock proteins research
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › S100 Proteins and Annexins
Keywords
HSP72, secretory pathway, immunomodulation, innate immunity, adaptive immunity, stress response, molecular chaperones
MeSH terms
Animals, Cell Membrane, Humans, Immunity, Cellular, Immunity, Innate, Immunologic Factors, Receptors, Adrenergic, alpha, Stress, Physiological, Signal Transduction, Up-Regulation, Extracellular Fluid, HSP72 Heat-Shock Proteins

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