揭开免疫检查点生物学的AMPK和BET调节:对个性化医学的影响
bioRxiv : the preprint server for biology
|February 9, 2026
概括
患有2型糖尿病 (T2D) 的三阴性乳腺癌 (TNBC) 患者的治疗结果较差. 基因和超终端域 (BET) 蛋白质和5'腺氨酸单酸激活蛋白激酶 (AMPK) 影响免疫检查点,可能改善T2DTNBC的免疫疗法.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 代谢性疾病 代谢性疾病
背景情况:
- 患有2型糖尿病 (T2D) 的三阴性乳腺癌 (TNBC) 患者的生存率更差.
- 免疫检查点阻塞 (ICB) 在TNBC中的有效性尚未确定.
- 2型糖尿病 (T2D) 与免疫抑制有关,而甲胺激活5'腺胺单酸激活蛋白激酶 (AMPK) 需要对AMPK在免疫检查点调节中的作用进行调查.
研究的目的:
- 为了研究AMPK和odomain和ExtraTerminal域 (BET) 蛋白质在TNBC中调节免疫检查点表达中的作用.
- 探索潜在的治疗策略,以提高TNBC患者的ICB疗效,特别是那些患有并发性T2D的患者.
主要方法:
- 利用流细胞计分析刺激的外周血液单核细胞上的免疫检查点蛋白表达 (TIM-3,TIGIT,PD-1,CTLA-4).
- 使用AMPK (化合物C) 和BET蛋白 (泛BET抑制剂JQ1,BRD4选择性PROTAC抑制剂MZ-1) 的化学抑制来评估它们的调节途径.
主要成果:
- BET蛋白质对免疫检查点蛋白TIM-3,TIGIT,PD-1和CTLA-4进行差异调节.
- 贝特蛋白通过AMPK依赖的通路调节PD-1和CTLA-4.
- BET蛋白通过AMPK独立的通路调节TIM-3和TIGIT.
结论:
- BET蛋白和AMPK在调节与TNBC相关的免疫检查点方面发挥着不同的作用.
- 准BET蛋白和AMPK通路可能提供个性化的治疗策略,以提高TNBCT2D患者的ICB疗效.
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