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毒素调节巨细胞的表型重编程

Camila Lima Neves1, Christiano Marcello Vaz Barbosa2, Priscila Andrade Ranéia-Silva3

  • 1Laboratory of Pathophysiology, Butantan Institute, São Paulo 05503-900, Brazil.

Toxins
|October 27, 2023
PubMed
概括
此摘要是机器生成的。

蛇毒中的毒素 (CTX) 改变了瘤环境和健康动物中的巨细胞重编程. 这种单剂量毒素影响免疫细胞功能,可能为癌症和免疫疾病提供新的治疗点.

关键词:
细胞因子 细胞因子它具有免疫调节效应.巨细胞的可塑性蛇 蛇 是一种蛇.瘤微环境是一个微环境.

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科学领域:

  • 免疫学 免疫学 免疫学
  • 药理学 药理学是指药理学的学科.
  • 癌症生物学 癌症生物学

背景情况:

  • 巨细胞的可塑性对于对抗病原体和环境变化的有效免疫反应至关重要.
  • 毒素 (CTX) 是Crotalus durissus terrificus毒液的主要成分,在临床前和临床环境中表现出已知的抗瘤特性.
  • 了解CTX对巨细胞表型的影响是探索其治疗潜力的关键.

研究的目的:

  • 为了研究CTX对巨细胞表型重编程在介质细胞瘤微环境中的作用.
  • 分析CTX对健康动物腹腔中的巨细胞的影响.
  • 为了确定CTX的使用是否调节巨细胞表型和氧化 (NO•) 生产.

主要方法:

  • 埃里希氏炎瘤 (EAT) 细胞在小鼠中通过腹膜内接种.
  • CTX是以0.9或5μg/动物的剂量进行皮下注射的.
  • 巨细胞表型 (M1/M2) 和NO•生产在13天后被评估在炎和腹细胞中.

主要成果:

  • 在携带瘤的小鼠中,CTX (0.9或5μg/动物) 向M1表型调节了巨细胞,增加了瘤中NO•的产生.
  • 在健康小鼠中,CTX诱导了剂量依赖的巨细胞两极分化:M1在0.9μg/动物和M2在5.0μg/动物.
  • 只有在健康动物的0.9μg/动物CTX剂量时,在腹巨细胞中观察到NO•的产量增加.

结论:

  • 一次CTX的使用显著影响了巨细胞的表型重编程和炎细胞的分泌状态.
  • 通过改变瘤微环境,CTX影响了介质细胞瘤进展中的关键事件.
  • 这些发现表明CTX是开发针对癌症免疫失调的新型治疗策略的潜在药物.