Abstract:
:Autoantibodies have been associated with autoimmune diseases. However, studies have identified autoantibodies in healthy donors (HD) who do not develop autoimmune disorders. Here we provide evidence of a network of immunoglobulin G (IgG) autoantibodies targeting G protein-coupled receptors (GPCR) in HD compared to patients with systemic sclerosis, Alzheimer's disease, and ovarian cancer. Sex, age and pathological conditions affect autoantibody correlation and hierarchical clustering signatures, yet many of the correlations are shared across all groups, indicating alterations to homeostasis. Furthermore, we identify relationships between autoantibodies targeting structurally and functionally related molecules, such as vascular, neuronal or chemokine receptors. Finally, autoantibodies targeting the endothelin receptor type A (EDNRA) exhibit chemotactic activity, as demonstrated by neutrophil migration toward HD-IgG in an EDNRA-dependent manner and in the direction of IgG from EDNRA-immunized mice. Our data characterizing the in vivo signatures of anti-GPCR autoantibodies thus suggest that they are a physiological part of the immune system.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Cabral-Marques O,Marques A,Giil LM,De Vito R,Rademacher J,Günther J,Lange T,Humrich JY,Klapa S,Schinke S,Schimke LF,Marschner G,Pitann S,Adler S,Dechend R,Müller DN,Braicu I,Sehouli J,Schulze-Forster K,Trippel T,Sdoi
10.1038/s41467-018-07598-9subject
Has Abstractpub_date
2018-12-06 00:00:00pages
5224issue
1issn
2041-1723pii
10.1038/s41467-018-07598-9journal_volume
9pub_type
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