微生物激活瘤透的淋巴细胞
Reza Naghavian1,2, Wolfgang Faigle1,2,3, Pietro Oldrati1
1Neuroimmunology and MS Research Section (NIMS), Neurology Clinic, University of Zurich, University Hospital Zurich, Zurich, Switzerland.
Nature
|May 17, 2023
概括
微生物会影响质母细胞瘤的免疫反应. 瘤存在由T细胞识别的细菌,这表明微生物参与抗瘤免疫力和个性化癌症疫苗的潜力.
科学领域:
- 免疫学
- 微生物学
- 癌症学
背景情况:
- 微生物在人体生理学中起着至关重要的作用,并影响对免疫检查点抑制剂的反应.
- 微生物组与质母细胞瘤免疫之间的相互作用仍然是活跃的研究领域.
研究的目的:
- 研究微生物对抗质母细胞瘤免疫反应的作用.
- 确定质母细胞组织和细胞系是否具有瘤透淋巴细胞 (TIL) 识别的细菌特异性.
主要方法:
- 对质母细胞瘤组织和细胞系中的HLA分子进行分析.
- 来自HLAII类分子的细菌的化和表征.
- 使用TIL CD4+ T细胞克隆发现无偏的抗原.
- 评估T细胞对细菌和瘤相关的反应.
主要成果:
- 质母细胞瘤组织和细胞系中的HLA分子存在细菌特异性.
- 透瘤的淋巴细胞 (TIL) 很难识别来自HLAII类分子的细菌.
- 一个TIL CD4+T细胞克隆识别了各种病原细菌,开始性微生物群和质母细胞瘤抗原的.
- 这些刺激了大量的TIL和外周血液记忆细胞,然后对瘤衍生产生反应.
结论:
- 细菌病原体和肠道微生物可能有助于对质母细胞瘤抗原的特定免疫识别.
- 对TIL的微生物向抗原的鉴定为开发个性化的瘤疫苗策略提供了潜力.
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