相关实验视频
Updated: Sep 20, 2025

06:07
Measuring Mitochondrial Function of Naïve and Effector CD8 T Cells
Published on: March 28, 2025
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细胞内膜网膜 (ER) 压力是否有助于B-ALL中T细胞疲劳?
Amir Kahrizi1, Armin Akbar1, Ahmad Najafi1
1Department of Immunology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.
Iranian journal of immunology : IJI
|May 26, 2025
概括
在B细胞急性淋巴细胞白血病 (B-ALL) 患者的CD8+T淋巴细胞中,内质网膜 (ER) 应激被激活. 这种ER压力可能会导致B-ALL.中的T细胞耗尽.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 在瘤学瘤学.
背景情况:
- 在T淋巴细胞中缺乏葡萄糖可以诱导补偿性代谢途径,可能导致T细胞耗尽.
- 这种代谢转变也可能触发未折叠的蛋白质反应 (UPR),从而导致内质网膜 (ER) 应激.
研究的目的:
- 研究ER压力标志物和T细胞耗尽指标的转录特征.
- 专注于从B细胞急性淋巴细胞白血病 (B-ALL) 患者中分离出来的CD8+ T淋巴细胞.
主要方法:
- 从22名未经治疗的B-ALL患者和22名健康对照组收集了周围血液.
- 使用磁激活细胞分类 (MACS) 隔离的CD8+ T淋巴细胞.
- 通过qRT-PCR评估XBP1,CHOP,GLUT1和T-bet的相对基因表达.
主要成果:
- 与对照细胞相比,显著增加的XBP1和CHOP转录水平表明B-ALL CD8+ T淋巴细胞中的激活ER压力.
- 在B-ALL患者中,GLUT1mRNA表达也显著增加.
- 在B-ALL患者和健康捐赠者之间没有观察到T-bet表达的显著差异.
结论:
- 基因表达数据表明,B-ALL患者的CD8+T淋巴细胞中的ER应激激活.
- 需要进一步的研究来探索ER应激信号通路.
- 在B-ALL的背景下,研究ER应激在促进T细胞耗尽中的潜在作用.
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