The clinical need for clustered AChR cell-based assay testing of seronegative MG.

The clinical need for clustered AChR cell-based assay testing of seronegative MG.
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基于ACHR细胞的临床需求基于ACHR细胞的测定测试。

DOI:
10.1016/j.jneuroim.2022.577850
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发表时间:
2022-06-15
影响因子:
3.3
通讯作者:
'Connor, Kevin C. O.
'Connor, Kevin C. O.
中科院分区:
医学4区
文献类型:
--
作者:
Masi, Gianvito;Li, Yingkai;Karatz, Tabitha;Pham, Minh C.;Oxendine, Seneca R.;Nowak, Richard J.;Guptill, Jeffrey T.;'Connor, Kevin C. O.

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重症肌无力(MG)的试验资格在很大程度上取决于自身抗体阳性的血清状态。这极大地阻碍了血清阴性MG (SNMG)患者接受潜在有益的新治疗。在一小部分SNMG患者中,乙酰胆碱受体(AChR)自身抗体可通过基于AChR细胞的聚集性测定(CBA)检测到。来自美国两个学术中心的99例SNMG患者中,18例(18.2%)通过该方法检测呈阳性。18例患者中有17例自身抗体阳性。在一项补充实验中,循环achr特异性B细胞在cba阳性SNMG患者中被鉴定出来。这些发现证实了在评估SNMG患者时进行聚集性AChR CBA检测的临床必要性。
Trial eligibility in myasthenia gravis (MG) remains largely dependent on a positive autoantibody serostatus. This significantly hinders seronegative MG (SNMG) patients from receiving potentially beneficial new treatments. In a subset of SNMG patients, acetylcholine receptor (AChR) autoantibodies are detectable by a clustered AChR cell-based assay (CBA). Of 99 SNMG patients from two academic U.S. centers, 18 (18.2%) tested positive by this assay. Autoantibody positivity was further validated in 17/18 patients. In a complementary experiment, circulating AChR-specific B cells were identified in a CBA-positive SNMG patient. These findings corroborate the clinical need for clustered AChR CBA testing when evaluating SNMG patients.
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