A&R:早期系统性红斑狼疮的纵向免疫细胞谱分析

2022-06-05 MedSci原创 MedSci原创

外周辅助T细胞、滤泡辅助T细胞(Tfh细胞)和独特的Ki67+增殖性免疫细胞亚群在系统性红斑狼疮(SLE)早期扩展,早期SLE的免疫学特征(Tfh细胞和CXCL10)随着时间的推移而演变。

目的研究系统性红斑狼疮(SLE)的免疫细胞谱及其纵向变化。

方法研究人员对来自9名早期SLE患者、15名确诊SLE患者和14名非炎症对照的冷冻保存的外周血单核细胞(PBMC)中采用了具有三种不同38-39标记组(免疫表型分型、T细胞/单核细胞和B细胞)的质谱检测。使用机器学习驱动的聚类、FlowSOM(流式细胞术自组织图)和tSNEt分布随机邻域嵌入)降维来识别早期和已确诊的SLE中的独特细胞群。对于9名早期SLE患者,在入组时、入组后6个月和入组后1年对PBMC应用纵向质谱分析。还通过Luminex多重检测对血清样品中的65种细胞因子进行了检测,并评估了细胞类型和细胞因子/趋化因子之间的关联。

结果外周辅助T细胞(Tph 细胞)、滤泡辅助T细胞(Tfh细胞)和几个Ki67+增殖亚群(ICOS+Ki67+CD8 T细胞、Ki67+调节性T细胞、CD19intKi67hi浆母细胞和Ki67hi PU.1hi 单核细胞)在早期SLE中增加,与早期类风湿性关节炎(RA)患者相比,早期SLE患者的变化更为显著。对早期SLE患者样本进行的纵向质谱和多重血清细胞因子分析显示,Tfh细胞和C-X-C基序趋化因子配体10CXCL10)在入组后一年下降CXCL13与早期SLE中几个扩增的细胞群呈正相关。

结论外周辅助T细胞、滤泡辅助T细胞(Tfh细胞)和独特的Ki67+增殖性免疫细胞亚群在SLE早期扩展,早期SLE的免疫学特征(Tfh细胞和CXCL10)随着时间的推移而演变。

 

出处:Sasaki T, Bracero S, Keegan J, Chen L, Cao Y, Stevens E, Qu Y, Wang G, Nguyen J, Sparks JA, Holers VM, Alves SE, Lederer JA, Costenbader KH, Rao DA. Longitudinal immune cell profiling in early systemic lupus erythematosus. Arthritis Rheumatol. 2022 May 29. doi: 10.1002/art.42248. Epub ahead of print. PMID: 35644031.

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    2022-06-05 ms5000000644045955

    不错,学习了。

    0

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    2022-06-05 zhouqu_8

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