来自口腔状细胞癌患者的血清通过促进调节性T细胞分化和T细胞耗尽来重塑瘤免疫逃生生态
Hongli Chen1, Jiao Chen1, Bomiao Cui1
1State Key Laboratory of Oral Diseases and National Center for Stomatology and National Clinical Research Center for Oral Diseases and West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China.
Oncology reports
|August 29, 2025
概括
口腔癌患者的血清通过增加调节性T细胞和T细胞疲劳促进免疫逃逸. 这阻碍了身体的抗瘤反应,影响了癌症生物治疗策略.
科学领域:
- 免疫学
- 癌症学
- 癌症研究
背景情况:
- 口腔状细胞癌 (OSCC) 是一种患病率高的恶性瘤.
- 了解瘤免疫逃生机制对于有效的癌症生物治疗至关重要.
- 癌症血清含有影响瘤微环境的生物标志物和免疫调节剂.
研究的目的:
- 研究OSCC患者的血清如何重塑瘤免疫逃生生态.
- 确定OSCC血清对T细胞分化和T细胞耗尽的影响.
主要方法:
- 用OSCC患者血清或胎儿牛血清培养周围血液单核细胞 (PBMC).
- 使用瘤抗原刺激PBMC培养物.
- 分析T细胞子集,细胞因子水平 (IL-4,IL-10,TGF-β) 和免疫检查点分子表达 (TIM-3,PD-L1).
主要成果:
- 在OSCC患者的血清中,调节性T细胞数量显著增加.
- 在OSCC血清中刺激瘤抗原导致抑制CD3+T细胞激活.
- 观察到IL-4,IL-10和TGF-β水平升高,T细胞TIM- 3和PD- L1表达增加,表明疲劳和抗瘤活性降低.
结论:
- 从口腔癌患者的血清积极促进免疫抑制和T细胞耗尽.
- 通过血清因子对瘤生态的这种重塑有助于OSCC的免疫逃逸.
- 结果强调血清介导的免疫调节是OSCC进展的关键因素,并建议治疗点.
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