Peripheral immune landscape and natural killer-like B cells in human Vogt-Koyanagi-Harada disease
He Li , Lei Zhu , Xiuxing Liu , Lihui Xie , Rong Wang , Zhaohuai Li , Zhaohao Huang , Shizhao Yang , Binyao Chen , Jinguo Ye , Yingfeng Zheng , Wenru Su
Life Medicine ›› 2022, Vol. 1 ›› Issue (3) : 387 -400.
Peripheral immune landscape and natural killer-like B cells in human Vogt-Koyanagi-Harada disease
Vogt-Koyanagi-Harada (VKH) disease is a systemic autoimmune disorder threatening the eyesight. The pathogenic mechanisms and biomarkers reflecting disease severity and predicting treatment response require further exploration. Here, we performed a single-cell analysis of peripheral blood mononuclear cells (PBMC) obtained from eight patients with VKH disease and eight healthy controls to comprehensively delineate the changes in VKH disease. We showed a mixture of inflammation, effector, and exhausted states for PBMCs in VKH disease. Notably, our study implicated a newly identified B cell subset, natural killer-like B cells (K-BC) characterized by expressing CD19 and CD56, was correlated with VKH disease. K-BCs expanded in VKH disease, fell back after effective treatment, and promoted the differentiation of pathogenic T cells. Overall, we mapped the peripheral immune cell atlas in VKH disease and indicated the pathogenic role and potential value in predicting treatment response of K-BCs.
Vogt-Koyanagi-Harada disease / single-cell RNA sequencing / natural killer-like B cells / autoimmunity
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The Author(s) 2022. Published by Oxford University Press on behalf of Higher Education Press.
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