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Engineering and Characterization of an Optogenetic Model of the Human Neuromuscular Junction
Published on: April 14, 2022
A novel MuSK cell-based myasthenia gravis diagnostic assay
Jiaojiao Han1, Jing Zhang2, Mingqiang Li3
1Department of Neuroimmunology, Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450052, China; Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450052, China.
Abstract:
To improve the clinical diagnosis of neural autoimmune diseases, we developed an in-house muscle-specific kinase (MuSK) antibody cell-based assay (CBA) and compared its performance with RIA, ELISA, and other CBAs. Sera from patients with myasthenia gravis (MG) and other autoimmune diseases were analyzed. We found 46 (18.3%) MuSK-CBA Ab positive cases among 251 AChR-Ab negative cases [patients] and 4 (0.6%) MuSK-CBA Ab positive cases [among] the 624 AChR-Ab positive samples. Comparing these with available clinic assays, our highly specific CBA method is more sensitive than commercial ELISA and IFA(indirect immunofluorescence assay).
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