FcRN receptor antagonists in the management of myasthenia gravis

Myasthenia gravis (MG) is an autoimmune disorder characterized by autoantibodies specifically directed against proteins located within the postsynaptic membrane of the neuromuscular junction. These pathogenic autoantibodies can be reduced by therapies such as plasma exchange, IVIG infusions and othe...

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Main Authors: Vinaya Bhandari, Vera Bril
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-08-01
Series:Frontiers in Neurology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2023.1229112/full
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author Vinaya Bhandari
Vera Bril
author_facet Vinaya Bhandari
Vera Bril
author_sort Vinaya Bhandari
collection DOAJ
description Myasthenia gravis (MG) is an autoimmune disorder characterized by autoantibodies specifically directed against proteins located within the postsynaptic membrane of the neuromuscular junction. These pathogenic autoantibodies can be reduced by therapies such as plasma exchange, IVIG infusions and other immunosuppressive agents. However, there are significant side effects associated with most of these therapies. Since there is a better understanding of the molecular structure and the biological properties of the neonatal Fc receptors (FcRn), it possesses an attractive profile in treating myasthenia gravis. FcRn receptors prevent the catabolism of IgG by impeding their lysosomal degradation and facilitating their extracellular release at physiological pH, consequently extending the IgG half-life. Thus, the catabolism of IgG can be enhanced by blocking the FcRn, leading to outcomes similar to those achieved through plasma exchange with no significant safety concerns. The available studies suggest that FcRn holds promise as a versatile therapeutic intervention, capable of delivering beneficial outcomes in patients with distinct characteristics and varying degrees of MG severity. Efgartigimod is already approved for the treatment of generalized MG, rozanolixizumab is under review by health authorities, and phase 3 trials of nipocalimab and batoclimab are underway. Here, we will review the available data on FcRn therapeutic agents in the management of MG.
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spelling doaj.art-39d941d860e942a5aab48ba46f2534b42023-08-04T15:40:45ZengFrontiers Media S.A.Frontiers in Neurology1664-22952023-08-011410.3389/fneur.2023.12291121229112FcRN receptor antagonists in the management of myasthenia gravisVinaya BhandariVera BrilMyasthenia gravis (MG) is an autoimmune disorder characterized by autoantibodies specifically directed against proteins located within the postsynaptic membrane of the neuromuscular junction. These pathogenic autoantibodies can be reduced by therapies such as plasma exchange, IVIG infusions and other immunosuppressive agents. However, there are significant side effects associated with most of these therapies. Since there is a better understanding of the molecular structure and the biological properties of the neonatal Fc receptors (FcRn), it possesses an attractive profile in treating myasthenia gravis. FcRn receptors prevent the catabolism of IgG by impeding their lysosomal degradation and facilitating their extracellular release at physiological pH, consequently extending the IgG half-life. Thus, the catabolism of IgG can be enhanced by blocking the FcRn, leading to outcomes similar to those achieved through plasma exchange with no significant safety concerns. The available studies suggest that FcRn holds promise as a versatile therapeutic intervention, capable of delivering beneficial outcomes in patients with distinct characteristics and varying degrees of MG severity. Efgartigimod is already approved for the treatment of generalized MG, rozanolixizumab is under review by health authorities, and phase 3 trials of nipocalimab and batoclimab are underway. Here, we will review the available data on FcRn therapeutic agents in the management of MG.https://www.frontiersin.org/articles/10.3389/fneur.2023.1229112/fullneonatal Fc receptor (FcRn)myasthenia gravis (MG)immunoglobulins (IgG)clinical trialsFc receptor inhibitors
spellingShingle Vinaya Bhandari
Vera Bril
FcRN receptor antagonists in the management of myasthenia gravis
Frontiers in Neurology
neonatal Fc receptor (FcRn)
myasthenia gravis (MG)
immunoglobulins (IgG)
clinical trials
Fc receptor inhibitors
title FcRN receptor antagonists in the management of myasthenia gravis
title_full FcRN receptor antagonists in the management of myasthenia gravis
title_fullStr FcRN receptor antagonists in the management of myasthenia gravis
title_full_unstemmed FcRN receptor antagonists in the management of myasthenia gravis
title_short FcRN receptor antagonists in the management of myasthenia gravis
title_sort fcrn receptor antagonists in the management of myasthenia gravis
topic neonatal Fc receptor (FcRn)
myasthenia gravis (MG)
immunoglobulins (IgG)
clinical trials
Fc receptor inhibitors
url https://www.frontiersin.org/articles/10.3389/fneur.2023.1229112/full
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