Human Fcγ-receptor IIb modulates pathogen-specific versus self-reactive antibody responses in lyme arthritis

Danzer H, Glaesner J, Baerenwaldt A, Reitinger C, Lux A, Heger L, Dudziak D, Harrer T, Gessner A, Nimmerjahn F (2020)

Publication Type: Journal article

Publication year: 2020

Journal

eLife eLife Sciences Publications

Book Volume: 9

DOI: 10.7554/eLife.55319

Abstract

Pathogen-specific antibody responses need to be tightly regulated to generate protective but limit self-reactive immune responses. While loss of humoral tolerance has been associated with microbial infections, the pathways involved in balancing protective versus autoreactive antibody responses in humans are incompletely understood. Studies in classical mouse model systems have provided evidence that balancing of immune responses through inhibitory receptors is an important quality control checkpoint. Genetic differences between inbred mouse models and the outbred human population and allelic receptor variants not present in mice; however, argue for caution when directly translating these findings to the human system. By studying Borrelia burgdorferi infection in humanized mice reconstituted with human hematopoietic stem cells from donors homozygous for a functional or a non-functional FcγRIIb allele, we show that the human inhibitory FcγRIIb is a critical checkpoint balancing protective and autoreactive immune responses, linking infection with induction of autoimmunity in the human immune system.

Authors with CRIS profile

Heike Danzer Lehrstuhl für Genetik Carmen Reitinger Lehrstuhl für Genetik Anja Lux Lehrstuhl für Genetik Lukas Heger Department of Dermatology Diana Dudziak Professur für die Biologie Dendritischer Zellen Thomas Harrer Professur für Innere Medizin mit dem Schwerpunkt Immundefizienz Falk Nimmerjahn Lehrstuhl für Genetik

Involved external institutions

Universität Regensburg DE Germany (DE) Universitätsspital Basel CH Switzerland (CH)

How to cite

APA:

Danzer, H., Glaesner, J., Baerenwaldt, A., Reitinger, C., Lux, A., Heger, L.,... Nimmerjahn, F. (2020). Human Fcγ-receptor IIb modulates pathogen-specific versus self-reactive antibody responses in lyme arthritis. eLife, 9. https://dx.doi.org/10.7554/eLife.55319

MLA:

Danzer, Heike, et al. "Human Fcγ-receptor IIb modulates pathogen-specific versus self-reactive antibody responses in lyme arthritis." eLife 9 (2020).

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