初级培养毛囊上皮细胞的形态和免疫学特征
Thomas Willer1, Annette Kaiser1, Adrian Smith2
11Clinic for Poultry, University of Veterinary Medicine Hannover, Foundation, Buenteweg 17, 30559 Hanover, Germany.
European journal of microbiology & immunology
|June 21, 2024
概括
肉初级上皮细胞 (PECC) 是一个适合用于研究宿主-病原体相互作用的体外模型. 这些细胞具有上皮特征,并通过托尔类受体 (TLR) 对微生物刺激做出反应,使免疫反应研究成为可能.
科学领域:
- 动物模型动物模型
- 细胞生物学 细胞生物学
- 免疫学 免疫学 免疫学
背景情况:
- 初级细胞与细胞系相比,与体内组织更为相似.
- 细胞系可能不适用于所有细胞类型或物种,而永生化可能会改变细胞生物学.
- 在体外模型对于研究宿主-病原体相互作用至关重要,这些相互作用在体内调查是具有挑战性的.
研究的目的:
- 为了评估的原发性上皮细胞 (PECCs) 作为宿主-病原体相互作用研究的体外模型.
- 确认PECCs的上皮特征和免疫反应能力.
主要方法:
- 通过紧密/粘合结和细胞形态确认上皮性质.
- 酸分布的分析.酸分布的分析.
- 确定通关类受体 (TLRs) 的信息库.
- 用多诺辛酸-多西酸 (多I:C) 和脂多糖 (LPS) 进行刺激.
- 测量干扰素 (IFN) 和介质蛋白 (IL) 的mRNA表达.
主要成果:
- PECCs表现出类似卵石的形态,并具有紧密的和粘附的结点,证实了它们的上皮质性质.
- 在PECC中酸的分布反映了白内障冷切割中的分布.
- PECCs表达了一系列类似收纳器 (TLRs) 的表达.
- 暴露于多I:C或LPS诱导了I型和III型干扰素 (IFN) 和IL-1β,IL-6和IL-8mRNA表达的上调.
- PECCs证明了两极分化的上皮细胞的特性.
结论:
- 肉初级上皮细胞 (PECC) 是一个适合用于宿主-病原体相互作用研究的体外模型.
- 在PECC中TLRs的存在和差异表达,以及它们的模式识别受体依赖免疫反应,支持它们的实用性.
- PECC为研究难以在体内研究的宿主-病原体动态提供了宝贵的工具.
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