首都医科大学学报 ›› 2023, Vol. 44 ›› Issue (1): 85-92.doi: 10.3969/j.issn.1006-7795.2023.01.013

• 基础研究 • 上一篇    下一篇

P53凋亡刺激蛋白2介导酒精性肝病脂代谢相关基因的转录组学分析

张莹1,2, 刘超楠3, 时红林1,2, 刘芳1,2, 陈德喜1,2, 时红波1,2*   

  1. 1.首都医科大学附属北京佑安医院北京肝病研究所,北京 100069;
    2.北京市肝炎、肝癌精准医学与转化工程技术研究中心,北京 100069;
    3.山西中医药大学第三临床学院,山西晋中 030619
  • 收稿日期:2022-05-04 出版日期:2023-02-21 发布日期:2023-01-13
  • 基金资助:
    国家重点研发计划(2022YFC2305002),北京市自然科学基金(M22030),北京市医院管理中心“登峰”计划专项经费资助(DFL20221501),北京市属医学科研院所公益发展改革试点项目(京医研2021-10)。

Transcriptome analysis of lipid metabolization-related differential genes mediated by P53 apoptosis-stimulating protein 2 in alcoholic liver disease

Zhang Ying1,2, Liu Chaonan3, Shi Honglin1,2, Liu Fang1,2, Chen Dexi1,2, Shi Hongbo1,2*   

  1. 1. Beijing Institute of Hepatology, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China;
    2. Beijing Engineering Research Center for Precision Medicine and Transformation of Hepatitis and Liver Cancer, Beijing 100069, China;
    3. The Third Clinical College of Shanxi University of Chinese Medicine, Jinzhong 030619, Shanxi Province, China
  • Received:2022-05-04 Online:2023-02-21 Published:2023-01-13
  • Contact: *E-mail:shihongbo@ccmu.edu.cn
  • Supported by:
    National Key Research and Development Program of China (2022YFC2305002), Natural Science Foundation of Beijing (M22030), “Peak Climbing” Program of Beijing Hospital Management Center (DFL20221501), Public Welfare Development and Reform Pilot Project of Beijing Municipal Medical Research Institutes (Beijing Medical Research Institute 2021-10).

摘要: 目的 应用转录组学测序探讨P53凋亡刺激蛋白2(apoptosis stimulating protein 2,ASPP2)对酒精性肝病脂代谢相关基因表达的影响。方法 首先用慢病毒转染人肝细胞HL-7702细胞系,构建7702Control-shRNA和7702ASPP2-shRNA细胞模型。然后,两组细胞均用400 mmol/L乙醇处理24 h,构建7702Control-shRNA和7702ASPP2-shRNA酒精肝模型。Illumina测序平台筛选差异表达基因,并进行基因本体(gene ontology,GO)富集分析和互作分析。结果 高通量测序以P<0.05且 |log2(foldchange)|>1的筛选标准获得150个差异表达的基因,其中上调的差异基因有58个,下调92个。其中,与脂代谢相关的上调差异基因有8个,下调差异基因有7个。GO富集分析发现4个脂代谢相关的细胞组分,包括高密度脂蛋白粒子,血浆脂蛋白粒子,脂蛋白粒子以及蛋白-脂质复合物。结论 本研究发现15种脂代谢相关差异基因,这些基因可能参与ASPP2介导的酒精性肝病脂代谢,为进一步研究ASPP2在酒精性肝病脂代谢中的调控机制奠定了基础。

关键词: 凋亡刺激蛋白2, 酒精性肝病, 脂代谢, 转录组学, 生物信息学

Abstract: Objective We used the Illumina sequencing platform to investigate the effect of p53 apoptosis stimulating protein 2 (ASPP2) on the expression of genes related to lipid metabolism in alcoholic liver disease. Methods The expression of ASPP2 was down-regulated by human hepatocyte HL-7702 cells infected with lentivirus. The two groups of cells (ASPP2-low and control) were cultured in a definite concentration of alcohol for 24 h. Then we used the Illumina sequencing platform to screen the differentially expressed genes. Then, a functional enrichment analysis and network interaction analysis were performed to explore the biological processes involving these genes. Results Total 150 differentially expressed genes were screened out by high-throughput sequencing according to the criteria of P<0.05 and | log2 (foldchange) |>1, of which 58 were up-regulated and 92 were down-regulated. Among them, there were 8 up-regulated genes and 7 down-regulated genes related to lipid metabolism. Gene ontology (GO) enrichment analysis found four cell components related to lipid metabolism, including high-density lipoprotein particles, plasma lipoprotein particles, lipoprotein particles, and protein-lipid complexes. Conclusion We found 15 different genes related to lipid metabolism in this study. These genes may be involved in ASPP2 mediated lipid accumulation in alcoholic liver disease, which lays a foundation for further study on the regulation mechanism of ASPP2 in lipid metabolism of alcoholic liver disease.

Key words: apoptosis stimulating protein 2(ASPP2), alcoholic liver disease, lipid metabolism, transcriptomics, bioinformatics

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