在慢性SIV感染期间,桃体组织的先天适应性免疫细胞动态
Rajni Kant Shukla1, Manuja Gunasena1, Nicole Reinhold-Larsson1
1Department of Microbial Infection and Immunity, College of Medicine, Ohio State University, Columbus, OH, United States.
Frontiers in immunology
|September 6, 2023
概括
慢性SIV感染会改变桃体的免疫细胞,增加一些人群,同时减少其他人群. 减少的IFN-γ可能会增加艾滋病毒患者对EBV和B细胞恶性瘤的敏感性.
科学领域:
- 免疫学 免疫学 免疫学
- 病毒学 病毒学
- 口腔医学是指口腔医学.
背景情况:
- 感染艾滋病毒的人面临口腔感染的增加和与EBV相关的B细胞癌症.
- 口腔免疫在口腔病变发展中的作用尚不清楚.
- 桃体作为关键的口腔-喉淋巴组织,对粘膜免疫至关重要.
研究的目的:
- 在慢性SIV感染期间调查的桃体中免疫细胞的变化.
- 了解SIV对桃体内先天性和适应性免疫反应的影响.
- 探索桃体免疫变化和口腔健康并发症之间的潜在联系.
主要方法:
- 通过流式细胞计量对子桃体中免疫细胞群的分析.
- 特定细胞子集的量化,包括单细胞,T细胞和B细胞.
- 评估细胞因子的产生 (TNF-α,IL-22,IFN-γ) 和细胞毒性标志物 (CD107a).
主要成果:
- 在SIV感染的中,古典单细胞,NKT样细胞,DP T细胞,CD161+ CD4 T细胞和NKB细胞的频率增加.
- 中间单细胞和DN T细胞的频率下降.
- 增加了TNF-α和CD107a的表达,但免疫细胞减少了IL-22和IFN-γ的产生.
结论:
- 桃体中SIV诱导的免疫反应与其他粘膜组织不同.
- 桃体先天性免疫细胞中IFN-γ的减少可能会增加对EBV和B细胞转换的敏感性.
- 这些发现增强了对SIV感染期间口腔先天免疫的理解,有助于艾滋病毒相关口腔感染研究.
关键词:
在CD161+T细胞中.在这里,我们可以看到NK NK NK NK NK.NKB 细胞是 NKB 细胞.这就是SIV SIV.在T细胞,T细胞.单细胞 (Monocytes) 是一种单细胞.桃体 桃体 桃体 是一个更多相关视频
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