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Increased level of HSP27 but not of HSP72 in human heart allografts in relation to acute rejection

Item Type:Article
Title:Increased level of HSP27 but not of HSP72 in human heart allografts in relation to acute rejection
Creators Name:Schimke, I. and Lutsch, G. and Schernes, U. and Kruse, I. and Duebel, H.P. and Pregla, R. and Hummel, M. and Meyer, R. and Stahl, J.
Abstract:Background. Increased expression of heat shock proteins (HSPs) was assumed during cardiac allograft rejection. To find evidence for this in man, we quantified HSP27 and HSP72 in cardiac allograft biopsies. Methods. In parallel to histological assessment of rejection, HSP27 was quantified by Western blotting in a total of 43 biopsies sampled from 3 patients. HSP72 was analyzed in parallel in 30 of the 43 cases. For comparison, HSPs were analyzed in myocardium. Results. HSP27 was significantly higher in rejecting cardiac allografts than in non-rejecting allografts and non-failing myocardium (1.52±0.25 vs. 0.83±0.11 vs. 0.50±0.05 μg/mg protein). Similarity for HSP72 (6.27±1.54 vs. 4.06±1.03 vs. 6.27±0.76 μg/mg protein) was not found. Conclusion. For the first time in humans with cardiac allograft rejection, increased expression of HSP27, which could be important for cardiac self-protection, was demonstrated. For the lack of increased HSP72 expression, the influence of the cyclosporine A treatment was discussed.
Keywords:Acute Disease, Cyclosporine, Fluorescence Microscopy, Graft Rejection, Heart Transplantation, Heat-Shock Proteins, Homologous Transplantation, HSP72 Heat-Shock Proteins, Immunosuppressive Agents, Myocardium, Neoplasm Proteins
Publisher:Lippincott Williams & Wilkins
Page Range:1694-1697
Date:27 December 2000
PubMed:View item in PubMed

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