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Atherosclerosis – An Autoimmune Disease Due to an Immune Reaction against Heat-Shock Protein 60

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Abstract

This brief overview, our concept of an autoimmune pathogenesis of atherosclerosis is summarized. In principle, we postulate that we may have to “pay” for our protective immunity against microbial heat-shock protein 60 (hsp60) with the danger of a cross-reactivity with our own hsp 60 that is expressed by endothelial cells that are stressed by classical risk factors for atherogenesis such as hypertension, high serum cholesterol levels, components of cigarette smoke and other toxins, etc. hsp60 are phylogenetically highly conserved and there is an over 55% homology between bacterial hsp60 and the human homologue forming the basis for this cross-reactivity. As another possibility, the initiation of the disease by a bona fide autoimmune reaction against chemically altered autologous hsp60 is discussed.

Zusammenfassung

In dieser kurzen Zusammenfassung wird unser “,autoimmunes Konzept” der Atherogenese beschrieben. Dieses Konzept besagt, daß wir für unsere schützende Immunität gegen mikrobielles Hitzeschockprotein 60 (hsp60) mit der Gefahr einer Kreuzreaktion mit autologem hsp60 “bezahlen” müssen, falls arterielle Endothelzellen durch klassische Atherosklerose-Risikofaktoren gestreßt werden. Die Expression von hsp60 wird in Endothelzellen durch mechanischen Streß (arterieller Bluthochdruck), hohe Serumcholesterinspiegel, Inhaltsstoffe von Zigarettenrauch, proinflammatorische Zytokine etc. produziert. Es wird auch die Möglichkeit diskutiert, daß es sich beim ersten entzündlichen Stadium der Atherosklerose um eine echte Autoimmunreaktion gegen biochemisch verändertes autologes hsp60 handeln könnte.

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Wick, G. Atherosclerosis – An Autoimmune Disease Due to an Immune Reaction against Heat-Shock Protein 60. Herz 25, 87–90 (2000). https://doi.org/10.1007/PL00001957

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  • DOI: https://doi.org/10.1007/PL00001957

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