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Updated: Jun 3, 2026

Intracellular Refolding Assay
Published on: January 24, 2012
Hsp70, a messenger from hyperthermia for the immune system
Anna Jolesch1, Katharina Elmer, Henriette Bendz
1Helmholtz Zentrum München-German Research Center for Environmental Health, Institute of Molecular Immunology, Marchioninistrasse 25, Munich, Germany.
Heat shock proteins (Hsps) act as chaperones inside cells but signal to the immune system when released. Hsp70, a heat-inducible Hsp, can be activated by clinical hyperthermia to initiate immune responses.
Area of Science:
- Immunology
- Molecular Biology
- Cell Biology
Background:
- Heat shock proteins (Hsps) have dual intracellular and extracellular roles.
- Intracellular Hsps function as molecular chaperones, aiding protein folding and transport.
- Extracellular Hsps act as immune messengers, revealing intracellular protein content.
Purpose of the Study:
- To elucidate the mechanisms of Hsp70 crosstalk with the immune system.
- To explore clinical hyperthermia as a method for immune activation via Hsp70.
Main Methods:
- The study describes the mechanisms of Hsp70-immune system interaction.
- It discusses the potential of clinical hyperthermia to modulate Hsp70 activity.
Main Results:
- Hsp70 released from cells communicates intracellular protein composition to the immune system.
- Upregulation of Hsp70 expression and release via necrosis can be induced by hyperthermia.
Conclusions:
- Hsp70 plays a critical role in initiating immune responses against intracellular components.
- Clinical hyperthermia presents a potential strategy to harness Hsp70's immunologic functions.
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