抗线粒体抗体阴性原发性胆汁性胆管炎的无创诊断
DOI: 10.12449/JCH250927
Noninvasive diagnosis of anti-mitochondrial antibody-negative primary biliary cholangitis
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摘要: 原发性胆汁性胆管炎(PBC)是一种自身免疫性疾病,主要特征是肝内胆管的胆汁淤积。抗线粒体抗体(AMA)是目前诊断PBC的关键血清标志物,但仍有5%~10%的PBC患者血清中无法检测出AMA,可能需要依赖肝脏活组织检查确诊。对于AMA阴性的PBC患者,无创性诊断仍是一个挑战。本文回顾除AMA外其他特异性血清标志物的研究进展,总结这些血清标志物诊断AMA阴性PBC的优缺点,并分析未来有望成为AMA阴性PBC患者无创性诊断的新生物标志物类型,以期为发现敏感性更高的血清标志物提供新思路。Abstract: Primary biliary cholangitis (PBC) is an autoimmune disease characterized by cholestasis of the intrahepatic bile ducts. Anti-mitochondrial antibody (AMA) is currently the key serum marker for the diagnosis of PBC, and however, there are still 5%—10% of patients with PBC who have undetectable AMA in their serum and need liver biopsy to make a confirmed diagnosis. Noninvasive diagnosis remains a challenge in AMA-negative PBC patients. This article reviews the research advances in specific serum markers other than AMA, summarizes the advantages and disadvantages of these serum markers in the diagnosis of AMA-negative PBC, and analyzes the types of new biomarkers that may be used in the noninvasive diagnosis of patients with AMA-negative PBC, in order to provide new ideas for identifying serum markers with higher sensitivities.
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Key words:
- Primary Biliary Cirrhosis /
- Autoantibodies /
- Diagnosis /
- Biomarkers
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表 1 AMA阴性PBC患者血清生物标志物的诊断效能评价
Table 1. Evaluation of the diagnostic performance of serum biomarkers in AMA-negative primary biliary cholangitis patients
血清标志物 定位 功能 敏感度
(%)特异度
(%)抗gp210抗体[14-18] 细胞核核膜,跨膜NPC蛋白 维持NPC结构的完整性 11~55 75~99 抗-NUP62抗体[18] 细胞核核膜,NPC中央通道内 物质运输功能 36 98 抗sp100抗体[17,20] 细胞核内,PML核体相关蛋白 参与调控基因转录、蛋白质合成、细胞增殖和
分化等生物学过程16~65 83~99 抗sp140抗体[17] 细胞核内,PML核体相关蛋白 参与调控基因转录、蛋白质合成、细胞增殖和
分化等生物学过程56 100 抗PML抗体[17] 细胞核内,PML核体蛋白 参与调控基因转录、蛋白质合成、细胞增殖和
分化等生物学过程41 100 抗-KLHL12抗体[28-30] 细胞核 胶原蛋白运输;调控Dishevelled蛋白泛素化 10.5~80 96~98 抗-HK1抗体[28-30] 线粒体外膜 参与细胞能量代谢;抑制细胞色素c的释放,
防止细胞凋亡11.8~40 85~98 ATX[32] 脂肪细胞、内皮细胞、单核细胞、
树突状细胞、肝细胞等细胞分泌胰岛素抵抗、细胞运动和增殖、血管生成、
血小板聚集、炎症反应调节50 93.1 -
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