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在炎症期间使用单细胞质细胞计来表征微质信号动态.

Sushanth Kumar1,2, August D Kahle1, Austin B Keeler1

  • 1Department of Biology, College of Arts and Sciences, University of Virginia, Charlottesville, Virginia, USA.

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概括

单细胞质量细胞计揭示了对LPS和PolyI:C的显著微质信号响应. 星球细胞显著抑制微质激活,突出显示了细胞背景在神经炎症中的重要性.

关键词:
赛托夫 (CyTOF) 是一种神经炎症是一种神经炎症.星球细胞是星球细胞.脂多糖 (LPS) 是一种脂多糖.质量细胞计量质量测量微质细胞中的微质细胞聚I:C) 是一个多I:C) 是一个多I:C) 是一个多I:C) 是一个多I:C) 是一个多I:C).信号通道的信号通道.

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科学领域:

  • 神经科学是一个神经科学.
  • 免疫学 免疫学 免疫学
  • 细胞生物学 细胞生物学

背景情况:

  • 微质细胞对于中枢神经系统 (CNS) 稳态至关重要,但它们的炎症信号配置不完全理解.
  • 传统的转录学错过了微质反应的动态后翻译变化.
  • 了解微质可塑性是神经炎症疾病研究的关键.

研究的目的:

  • 用时间解析单细胞质细胞计 (CyTOF) 来表征由细菌 (LPS) 和病毒 (Poly(I:C)) 模仿物激活的动态微质信号通路.
  • 为了研究星球细胞在混合质培养中对微质信号传递的免疫调节作用.
  • 识别微质激活和反应的信号模块和关键标记物.

主要方法:

  • 初级新生小鼠微质细胞和混合质细胞培养被用LPS或Poly (I:C) 刺激了48小时.
  • 单细胞质量细胞计 (CyTOF) 使用33个抗体面板准信号和身份标记物.
  • 使用高维集群分析来识别信号模块和细胞反应.

主要成果:

  • 与PolyI:C相比,脂聚糖 (LPS) 诱导了p38 MAPK (pp38),ERK (pERK),RSK (pRSK) 和CREB (pCREB) 的更强大的早期激活.
  • 无论是LPS还是Poly (I:C) 都在以后的时间点上调节了经典的微质反应性标志物CD40和CD86.
  • 星球细胞的存在显著减弱了对LPS和Poly{I:C}的微质反应,显著降低了CD40上调.

结论:

  • 时间解析单细胞质量细胞计是有效的捕获动态微质信号的景观,以响应炎症刺激.
  • 微质反应根据炎症触发的类型而异,具有明显的早期信号事件.
  • 星球细胞的存在显著调节微质激活,强调了细胞环境在神经炎症和治疗策略中的重要性.