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双抗原膜性脏病是双抗原的

Samih H Nasr¹, Tiffany N Caza², Christopher P Larsen²

¹Department of Laboratory Medicine and Pathology, Division of Anatomic Pathology, Mayo Clinic, Rochester, Minnesota, USA.

Kidney international

|November 6, 2025

概括

双抗原膜性病 (MN) 可能被低诊断,涉及各种MN抗原. 液体染色学双重质谱法 (LC MS/MS) 对于检测双抗原MN非常有价值.

科学领域:

腎臟病學 (nephrology) 是一種醫學專業.
免疫病理学免疫病理学
生物标志物发现发现

背景情况:

膜性脏病 (MN) 通常涉及单个主要抗原.
通过免疫组织化学 (IHC) /免疫光 (IF) 或血清学检测发现了罕见的双抗原MN病例.
这项研究调查了梅奥诊所和阿卡纳实验室的双抗原MN.

研究的目的:

为了识别和描述双抗原膜性病的病例.
评估激光捕获微解剖与液体染色学双重质谱学 (LC MS/MS) 结合的实用性,用于检测活检中的多个MN抗原.

主要方法:

来自梅奥诊所的脏活检组织的分析,使用激光捕获微解剖和LCMS/MS检测12个MN抗原.
使用LCMS/MS和IHC/IF两种方法确认双抗原MN病例.

主要成果:

确认了9例双抗原MN,其中包括NELL1,CNTN1,NCAM1,EXT1/2,NDNF,PLA2R1,THSD7A,PCDH7的组合.
患者通常表现为性综合征和微观出血症,平均年龄为68岁.
双抗原MN占梅奥诊所PLA2R1阴性MN病例的2.6%.

结论:

双抗原MN可能被低诊断,特别是当PLA2R1参与时,因为抗原检测不是常规执行的.
多种MN抗原,包括podocyte表达,跨膜和分泌类型,可以参与双抗原MN.
LCMS/MS是识别双抗原MN的宝贵工具,有助于理解其病理生理学,治疗和临床结果.

关键词:

在EXT1/EXT2中使用.在NCAM1中,它是NCAM1.尼尔 (NELL) 是一个名为NELL的公司.联系在-1-1的联系质谱测量质谱测量质谱测量质谱测量质量测量质谱测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量质量测量膜性脏病是一种脏病.

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