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Development of Compendium for Esophageal Squamous Cell Carcinoma
Published on: April 12, 2024
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由HMGB2通过ANGPT1/PI3K/AKT通路调节的NK细胞功能下降及其对食道状癌细胞的影响
Xiaodi Yin1, Huihong Cai1, Aohua Zhang1
1Department of Clinical Laboratory, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
Frontiers in immunology
|November 24, 2025
概括
高流动性组盒子2 (HMGB2) 在食道状细胞癌 (ESCC) 中损害了天然杀手 (NK) 细胞的抗瘤免疫力. 削减HMGB2通过ANGPT1/PI3K/AKT通路增强NK细胞功能,提供一种潜在的免疫治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 自然杀手 (NK) 细胞对于抗瘤免疫力至关重要,但在瘤微环境中经常被抑制.
- 高流动性组盒2 (HMGB2) 在调节NK细胞功能的作用,特别是在食道状细胞癌 (ESCC) 中,仍然在很大程度上未知.
研究的目的:
- 研究HMGB2对ESCC中NK细胞功能的影响.
- 阐明HMGB2影响NK细胞介导的抗瘤活性的潜在分子机制.
主要方法:
- 来自ESCC患者和健康捐赠者的外周血液单核细胞 (PBMC) 的转录和蛋白质组分析.
- 流式细胞计量用于量化NK细胞中的HMGB2表达.
- 通过RNA干扰和CRISPR/Cas9调节NK-92细胞中的HMGB2水平.
- 评估NK细胞的细胞毒性和细胞因子的产生 (granzyme B,穿孔素,IFN-γ,TNF-α).
主要成果:
- 在ESCC患者的NK细胞中,HMGB2被上调,与晚期瘤阶段相关.
- 沉默或淘汰HMGB2显著增强NK细胞细胞毒性和对ESCC细胞的细胞因子产生.
- 减少HMGB2诱导了ANGPT1的表达,并激活了PI3K/AKT通路,这对增强NK细胞功能至关重要.
结论:
- 在ESCC中,HMGB2抑制了NK细胞介导的抗瘤免疫.
- 由于HMGB2的减少,NK细胞通过ANGPT1/PI3K/AKT信号通路增强了NK细胞的细胞毒性.
- 向HMGB2可能代表了一种新的治疗策略,用于增强基于NK细胞的ESCC免疫疗法.
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