Myasthenia gravis: measurement of anti-AChR autoantibodies using cell line TE671.
cross_sectional · Level IV
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Abstract
Anti-acetylcholine receptor (AChR) antibodies in myasthenia gravis (MG) can be quantitated using AChR extracted from the human rhabdomyosarcoma cell line TE671 (AChRTE671) as a practical alternative to AChR from human amputated limbs (AChRAMP). We compared the two antigen preparations using serum samples from different clinical groups of MG patients (n = 112) and various controls (n = 189). With two exceptions, both tests were positive or negative in the same patients. However, in the generalized MG group, the TE671 assay yielded significantly lower titers than the AChRAMP assay.
Medical subject headings
- Autoantibodies
- Myasthenia Gravis
- Receptors, Cholinergic