主要Sjogren综合征与肺腺癌相关:探测潜在的常见致病机制和实验验证
Ying Li1, Xue-Lei Chu2, Peng Xue2
1Graduate School, Beijing University of Chinese Medicine.
Journal of visualized experiments : JoVE
|October 7, 2024
概括
炎症与原发性Sjogren综合征 (pSS) 和肺腺癌 (LUAD) 有关. 在pSS小鼠模型中,PM2.5暴露激活了炎症途径,通过IL6和JAK2.2等关键基因促进LUAD的发展.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 生物信息学是一种生物信息学.
背景情况:
- 主要Sjogren综合征 (pSS) 是一种自身免疫性疾病,具有增加肺腺癌 (LUAD) 风险.
- 连接pSS和LUAD的常见致病机制尚不清楚,需要对共享的分子途径进行调查.
研究的目的:
- 通过综合生物信息学和实验方法,确定pSS和LUAD之间的共同致病机制.
- 阐明炎症在pSS和LUAD的同时发生中的作用.
主要方法:
- 从公共数据库 (GEO,Genecard) 获取了pSS和LUAD基因表达数据.
- 进行了差异基因表达分析,KEGG/GO丰富,并构建了蛋白质-蛋白质相互作用网络.
- 使用NOD/Ltj小鼠作为pSS模型,暴露在PM2.5,并使用qPCR,ELISA和西方抹杀进行实验验证.
主要成果:
- 生物信息学分析确定炎症是关键的链接机制,强调IL6,CCNA2,JAK2,IL1B,ASPM,CCNB2,NUSAP1和CEP55作为核心目标.
- 在小鼠中,PM2.5暴露诱导了IL-6和IL-1β的升高,激活了JAK2/STAT3通路,并上调了与瘤相关的基因 (CCNA2,CCNB2,CEP55).
- 与BALB/c小鼠相比,NOD/Ltj小鼠显示出更显著的炎症和分子变化.
结论:
- 在pSS背景下的肺炎可以驱动LUAD致癌.
- 准炎症途径和确定关键基因可能为PSS患者的LUAD预防提供策略.
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