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埃尔马普,加勒-9和德-2之间的结合促进了库普弗细胞的化和抗瘤免疫力
Jie Li1, Xiao-Gang Liu2, Rui-Liang Ge3
1Department of Medical Genetics, Shanghai Key Laboratory of Medical Bioprotection, Key Laboratory of Biological Defense, Ministry of Education, Naval Medical University, Shanghai, China.
Nature immunology
|October 9, 2023
概括
研究人员发现了一种新的"吃我"信号,涉及ERMAP,加勒-9和德-2. 这一途径有助于库普费尔细胞检测和清除癌细胞,可能减少肝脏转移.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
背景情况:
- 库弗弗细胞对于识别和去除肝脏中的癌细胞至关重要.
- 库普弗细胞癌细胞检测和细胞形成的精确分子机制在很大程度上是未知的.
研究的目的:
- 阐明库弗弗细胞检测和细胞化癌细胞的分子机制.
- 确定参与控制肝转移的新信号通路.
主要方法:
- 在体内全基因组的CRISPR-Cas9淘汰查被用于识别关键基因.
- 研究了蛋白质与蛋白质的相互作用和依赖于糖化酶的结合.
- 对患者瘤样本中的ERMAP表达进行了分析.
主要成果:
- 癌细胞上的跨膜蛋白ERMAP被确定为一个关键的信号分子.
- 埃尔马普激活了库普弗细胞的细胞分裂,并影响了肝脏转移.
- 在ERMAP,galectin-9 (在Kupffer细胞上) 和dectin-2 (在Kupffer细胞上) 之间形成的复合物有助于癌细胞的识别和清除.
- 瘤中的低ERMAP表达与肝转移的增加相关.
结论:
- 在ERMAP-galectin-9-dectin-2轴作为一个"吃我"信号,促进Kupffer细胞癌细胞的细胞化.
- 这一途径代表了减少肝转移的潜在治疗标.
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