September 28, 2025 • 2 mins
New research from the Myasthenia Gravis Rare Disease Network (MGNet). This summary is based on a paper published in the journal Neurology Neuroimmunology & Neuroinflammation on July 18, 2025, titled "AChR Autoantibody Pathogenic Properties Are Heterogeneously Distributed and Undergo Temporal Changes Among Patients With Myasthenia Gravis."
Read the paper here.
Learn more about MGNet.
Transcript:
New research from the Myasthenia Gravis Rare Disease Network (MGNet), a research group of the Rare Diseases Clinical Research Network.
Investigating Pathogenic Properties of Acetylcholine Receptor Autoantibodies in Myasthenia Gravis.
This summary is based on a paper published in the journal Neurology Neuroimmunology & Neuroinflammation on July 18, 2025.
Myasthenia gravis (MG) is a neuromuscular disorder caused by an autoimmune response which blocks or damages the neuromuscular junction in muscles, causing disabling weakness with characteristic fluctuation in severity over time. The most common form of MG is caused by acetylcholine receptor (AChR) autoantibodies, which either block the AChR, increase their removal from the muscle surface, or block complement.
In this study, researchers investigated the pathogenic properties of AChR autoantibodies in MG and whether they varied over time in relationship to severity of disease. The team analyzed serum specimens from 50 patients with MG collected every six months for two years. Next, they used live cell-based assays to measure AChR autoantibody isotypes, immunoglobulin G subclasses, and the nature of the pathogenic mechanisms.
Results showed that the pathogenic mechanisms of the antibodies fluctuated over time and were generally not associated with disease severity. Authors concluded that additional studies of autoantibody pathogenicity should be incorporated into MG clinical trials to assess differential treatment responses.
Read the paper here.
Learn more about MGNet.
Transcript:
New research from the Myasthenia Gravis Rare Disease Network (MGNet), a research group of the Rare Diseases Clinical Research Network.
Investigating Pathogenic Properties of Acetylcholine Receptor Autoantibodies in Myasthenia Gravis.
This summary is based on a paper published in the journal Neurology Neuroimmunology & Neuroinflammation on July 18, 2025.
Myasthenia gravis (MG) is a neuromuscular disorder caused by an autoimmune response which blocks or damages the neuromuscular junction in muscles, causing disabling weakness with characteristic fluctuation in severity over time. The most common form of MG is caused by acetylcholine receptor (AChR) autoantibodies, which either block the AChR, increase their removal from the muscle surface, or block complement.
In this study, researchers investigated the pathogenic properties of AChR autoantibodies in MG and whether they varied over time in relationship to severity of disease. The team analyzed serum specimens from 50 patients with MG collected every six months for two years. Next, they used live cell-based assays to measure AChR autoantibody isotypes, immunoglobulin G subclasses, and the nature of the pathogenic mechanisms.
Results showed that the pathogenic mechanisms of the antibodies fluctuated over time and were generally not associated with disease severity. Authors concluded that additional studies of autoantibody pathogenicity should be incorporated into MG clinical trials to assess differential treatment responses.
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