一种免疫调节,有可能抑制瘤生长和自身免疫力
Michael Agrez1,2, Christopher Chandler3, Kristofer J Thurecht4,5
1InterK Peptide Therapeutics Limited, New South Wales, Australia. michael.agrez@interk.com.au.
Scientific reports
|November 13, 2023
概括
一种新,IK14004,抑制了易斯肺癌的生长,并增强了免疫反应. 这种可以帮助在癌症免疫治疗期间最大限度地减少自身免疫副作用,而不会影响抗瘤活性.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 自身免疫性疾病和癌症经常同时发生,免疫检查点抑制剂治疗 (ICI) 可以使自身免疫性疾病恶化.
- 以前发现一种脂质,IK14004,可以扩展调节性T细胞 (Tregs) 并激活CD8+T细胞,同时将IL-2从IFN-γ生产中解离.
研究的目的:
- 研究IK14004对易斯肺癌 (LLC) 增长和免疫细胞功能的影响.
- 探索IK14004在调节癌症免疫疗法的免疫反应方面的潜力.
主要方法:
- 用IK14004.4对易斯肺癌模型进行治疗.
- 分析脊髓细胞衍生T细胞的疲劳标记.
- 评估人类免疫细胞反应,包括T细胞受体表达,I型IFN产生,NK细胞受体表达 (NKG2D/NKp44),K562细胞毒性和IL-12受体链比.
主要成果:
- IK14004抑制了易斯肺癌的生长,并使耗尽的CD4+T细胞复原.
- 在人类免疫细胞中,IK14004调节了T细胞受体表达,诱导了I型IFN,增强了NK细胞细胞毒性和受体表达,并转移了IL-12受体链,有利于IL-12p70结合.
结论:
- IK14004显示出抗瘤活性和免疫调节效应,有利于癌症免疫治疗.
- 这种提供了一种潜在的策略,可以减轻ICI治疗的自身免疫并发症,而不会促进瘤免疫逃避.
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