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Case Rep Oncol. 2013 Jan;6(1):104-8. doi: 10.1159/000348425. Epub 2013 Feb 21.

Are Agonistic Autoantibodies against G-Protein Coupled Receptors Involved in the Development of Long-Term Side Effects of Tumor Chemotherapy?.

Case reports in oncology

Annekathrin Haberland, Robson A S Santos, Ingolf Schimke, Gerd Wallukat

Affiliations

  1. Charité - Universitätsmedizin Berlin, Berlin, Germany.

PMID: 23569443 PMCID: PMC3618042 DOI: 10.1159/000348425

Abstract

Metabolic syndrome and cardiomyopathies are long-term consequences of chemo- and radiotherapy and develop long after completing the initial tumor treatment. The slow progression of such late effects might be an indication of the involvement of autoimmune processes in the development of such follow-up consequences. Functionally active autoantibodies, which permanently stimulate relevant cell receptors, might be a crucial component. Here, we report the detection of functionally active agonistic autoantibodies such as the autoantibody against the adrenergic alpha1-receptor, the muscarinic M2-receptor, and the newly discovered autoantibody against the Mas-receptor in the plasma of a cancer survivor following chemotherapy treatment.

Keywords: Agonistic autoantibodies; Cardiomyopathy; Chemotherapy; G-protein coupled receptor autoantibodies; Long-term disturbances; Metabolic syndrome; Tumor therapy

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