Recombinant Acetylcholine Receptor Immunization Induces a Robust Model of Experimental Autoimmune Myasthenia Gravis in Mice

Myasthenia gravis (MG) is a prototypical autoimmune disease of the neuromuscular junction (NMJ). The study of the underlying pathophysiology has provided novel insights into the interplay of autoantibodies and complement-mediated tissue damage. Experimental autoimmune myasthenia gravis (EAMG) emerged as a valuable animal model, designed to gain further insight and to test novel therapeutic approaches for MG. However, the availability of native acetylcholine receptor (AChR) protein is limited favouring the use of recombinant proteins. To provide a simplified platform for the study of MG, we established a model of EAMG using a recombinant protein containing the immunogenic sequence of AChR in mice. This model recapitulates key features of EAMG, including fatigable muscle weakness, the presence of anti-AChR-antibodies, and engagement of the NMJ by complement and a reduced NMJ density. Further characterization of this model demonstrated a prominent B cell immunopathology supported by T follicular helper cells. Taken together, the herein-presented EAMG model may be a valuable tool for the study of MG pathophysiology and the pre-clinical testing of therapeutic applications.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:13

Enthalten in:

Cells - 13(2024), 6 vom: 14. März

Sprache:

Englisch

Beteiligte Personen:

Theissen, Lukas [VerfasserIn]
Schroeter, Christina B [VerfasserIn]
Huntemann, Niklas [VerfasserIn]
Räuber, Saskia [VerfasserIn]
Dobelmann, Vera [VerfasserIn]
Cengiz, Derya [VerfasserIn]
Herrmann, Alexander [VerfasserIn]
Koch-Hölsken, Kathrin [VerfasserIn]
Gerdes, Norbert [VerfasserIn]
Hu, Hao [VerfasserIn]
Mourikis, Philipp [VerfasserIn]
Polzin, Amin [VerfasserIn]
Kelm, Malte [VerfasserIn]
Hartung, Hans-Peter [VerfasserIn]
Meuth, Sven G [VerfasserIn]
Nelke, Christopher [VerfasserIn]
Ruck, Tobias [VerfasserIn]

Links:

Volltext

Themen:

9007-36-7
Autoantibodies
Complement
Complement System Proteins
Experimental autoimmune myasthenia gravis
Journal Article
Murine model
Myasthenia gravis
Receptors, Cholinergic

Anmerkungen:

Date Completed 28.03.2024

Date Revised 29.03.2024

published: Electronic

Citation Status MEDLINE

doi:

10.3390/cells13060508

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM370239016