来自iPSC的低免疫性组织常存记忆T细胞介导强大的抗瘤活性,对抗宫癌
Yoshiki Furukawa1, Midori Ishii1, Jun Ando2
1Department of Hematology, Juntendo University School of Medicine, 2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan.
Cell reports. Medicine
|December 13, 2023
概括
针对人类乳头瘤病毒 (HPV) 的工程T细胞显示出对宫癌治疗的希望. 修改后的T细胞逃避免疫排斥,提供了潜在的"现成"疗法.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 干细胞生物学 干细胞生物学
背景情况:
- 人类乳头瘤病毒 (HPV) 特定的细胞毒性T淋巴细胞 (CTLs) 可以抑制子宫癌.
- 自主T细胞疗法耗时,全基因方法面临免疫排斥.
- 现有疗法与晚期子宫癌治疗时间表作斗争.
研究的目的:
- 开发双重集成的HLA-A24和HLA-E修饰的HPV特异性T细胞 (rejTs),用于增强抗癌疗法.
- 为了克服异构T细胞移植中的免疫排斥.
- 建立一个可行的"现成"的T细胞治疗宫癌.
主要方法:
- 从诱导的多能干细胞生成功能复原的HPV特异性CTLs.
- 在删除 HLA I 类抗原后,设计具有双 HLA-A24 和 HLA-E 集成的 rejT.
- 单细胞RNA测序以分析RJT特征和机制.
主要成果:
- 工程技术 rejTs 有效地抑制了接受者的免疫排斥.
- 与原来的CTL相比,HPV-rejT对宫癌具有更强大的细胞毒性.
- 单细胞分析显示,组织内存T细胞与高调的TGFβR信号传递和CD103表达得到了丰富.
结论:
- 双重集成的HPV-rejT克服了免疫排斥并增强了抗癌细胞毒性.
- 上调的免疫突触基因促进更强的T细胞受体激活和细胞死亡.
- 这种方法为开发用于宫癌的"现成"T细胞疗法提供了一个有希望的策略.
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