Cellular changes in eculizumab early responders with generalized myasthenia gravis
Copyright © 2021 Elsevier Inc. All rights reserved.
| Veröffentlicht in: | Clinical immunology (Orlando, Fla.). - 1999. - 231(2021) vom: 01. Okt., Seite 108830 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2021
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| Zugriff auf das übergeordnete Werk: | Clinical immunology (Orlando, Fla.) |
| Schlagworte: | Journal Article Research Support, Non-U.S. Gov't Complement C5 Complement inactivating agents Flow cytometry Lymphocytes Myasthenia gravis Antibodies, Monoclonal, Humanized Complement Inactivating Agents eculizumab |
| Zusammenfassung: | Copyright © 2021 Elsevier Inc. All rights reserved. Eculizumab (ECU), a C5 complement inhibitor, is approved to treat acetylcholine receptor autoantibody positive generalized myasthenia gravis (AChR MG). The clinical effect of ECU relies on inhibition of the terminal complement complex; however, the effect of ECU on lymphocytes is largely unknown. We evaluated innate and adaptive immunity among AChR MG patients (N = 3) before ECU and ≥3 months later while on stable therapy, and found reduced activation markers in memory CD4+ T cell subsets, increased regulatory T cell populations, and reduced frequencies of CXCR5+HLA-DR+CCR7+ Tfh subsets and CD11b+ migratory memory B cells. We observed increases within CD8+ T cell subsets that were terminally differentiated and senescent. Our data suggest complement inhibition with ECU modulates the adaptive immunity in patients with MG, consistent with preclinical data showing changes in complement-mediated signaling by T- and antigen-presenting cells. These findings extend our understanding of ECU's mechanism of action when treating patients with MG |
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| Beschreibung: | Date Completed 09.11.2021 Date Revised 09.11.2021 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1521-7035 |
| DOI: | 10.1016/j.clim.2021.108830 |