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单细胞和空间转录组学揭示了蝙蝠免疫力和屏障组织进化.

Roy Levinger1, Dafna Tussia-Cohen1, Sivan Friedman1

  • 1Shmunis School of Biomedicine and Cancer Research, George S Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel.

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概括

埃及水果蝙蝠表现出独特的补充系统基因表达,这可能解释了它们对病原体的抵抗力. 这与在小鼠中观察到的类似的干扰素反应形成鲜明对比,突出显示了蝙蝠的独特免疫进化.

关键词:
蝙蝠 蝙蝠 蝙蝠 蝙蝠 是一个比较的转录组学 进行比较免疫防御系统的演变单细胞转录组学 单细胞转录组学组织进化 组织进化

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科学领域:

  • 比較免疫學 比較免疫學
  • 进化生物学是进化的生物学.
  • 传染病的耐药性 传染病的耐药性

背景情况:

  • 蝙蝠表现出各种各样的病原体防御机制,包括疾病耐药性和耐受性.
  • 虽然埃及水果蝙蝠的疾病耐受性是可以理解的,但耐药性机制仍然不清楚.
  • 提高先天性免疫基因表达是其他物种耐药性的潜在驱动力.

研究的目的:

  • 调查与埃及水果蝙蝠免疫抵抗相关的转录模式.
  • 将蝙蝠组织 (肠道,肺部,血液) 的基因表达与小鼠和人类模型进行比较.
  • 在蝙蝠中识别独特的免疫系统适应.

主要方法:

  • 埃及水果蝙蝠肠,肺和血液细胞的单细胞和空间转录组.
  • 对蝙蝠,老鼠和人类基因表达的比较分析.
  • 对干扰素和补充系统基因的基因组分析.
  • 蝙蝠补体系统活动的功能性测试.

主要成果:

  • 蝙蝠的干扰素表达和诱导与小鼠相似,尽管有蝙蝠特定的基因组变化.
  • 中央补充系统基因在蝙蝠肺和肠道上皮表现出独特的高表达.
  • 这种独特的补充表达集中在蝙蝠肠密室中,这些区域具有保存的发育计划.
  • 蝙蝠补充系统基因迅速进化,并表现出强烈的溶血活性.

结论:

  • 蝙蝠对补体系统具有独特的转录特征,与小鼠和人类有很大不同.
  • 这种独特的补充系统分歧可能有助于观察到蝙蝠对病原体的耐药性.
  • 这项研究强调了蝙蝠免疫力的复杂进化适应.