MAPK和STAT3抑制剂调节FoxP3表达和调节T细胞功能
Nuria García-Díaz1,2, Elise Solli1,2, Ehsan Hajjar1
1Department of Cancer Immunology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway.
European journal of immunology
|February 16, 2025
概括
研究人员将博苏替尼和尼福洛克萨齐德确定为降低表达FoxP3.3的调节性T细胞 (Tregs) 的化合物. 这些药物及其类似物通过向这些免疫抑制细胞,有望改善癌症免疫疗法.
科学领域:
- 免疫学 免疫学 免疫学
- 癌症生物学 癌症生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 通过FoxP3表达识别的调节性T细胞 (Tregs) 对于免疫调节至关重要.
- Tregs 在瘤中积累,促进癌症生长并阻碍免疫反应.
- 准FoxP3+Tregs是一个潜在的策略,可以增强癌症免疫疗法.
研究的目的:
- 为了识别降低人类初级T细胞FoxP3表达的化合物.
- 发现用于提高癌症免疫疗法疗效的新型治疗剂.
主要方法:
- 一个药物重定向图书馆的高通量表型选.
- 识别和验证针对FoxP3表达的化合物及其结构类似物.
- 对Treg抑制功能和激活标记物的化合物作用的评估.
- 对由化合物调节的特定信号通路 (FAK,CaMKII,STAT3) 的分析.
主要成果:
- Bosutinib和nifuroxazide被确定为Tregs中的FoxP3表达的有效抑制剂.
- 博苏替尼和尼福洛克萨齐德的结构类型在降低FoxP3.3的调节方面表现出类似或增强的效力.
- 所有测试的化合物都抑制了Treg抑制功能,并减少了Treg激活标志物.
- 博苏替尼偏好地破坏了FAK和CaMKII信号传输,而尼福洛克沙和NA16则准了STAT3.
- 与其他Treg亚组相比,博苏替尼和NA16对效应Tregs的疗效更大.
结论:
- 博苏替尼,尼福洛克萨齐德及其类型有效抑制FoxP3表达和Treg功能.
- 这些化合物代表了增强当前癌症免疫治疗策略的有希望的工具.
- 通过FoxP3下调来准Tregs为癌症治疗提供了一种可行的方法.
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