首页|通过RNA-seq探究外源性硫化氢对肝癌细胞系HepG2的影响

通过RNA-seq探究外源性硫化氢对肝癌细胞系HepG2的影响

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目的 探究外源性硫化氢(hydrogen sulfide,H2S)对肝细胞癌(hepatocellular carcinoma,HCC)的影响及可能的分子机制,为HCC诊疗提供理论实验支持.方法 从GEO数据库中获取HCC的基因表达数据,并筛选外源性H2S处理HepG2细胞的RNA-seq数据,通过差异基因筛选、GO和KEGG通路分析,确定H2S调控的主要生物学功能和信号通路.结果 数据分析表明,与正常组织相比,肝癌组织中硫化氢合成关键酶胱硫醚γ裂解酶(cystathionine γ-lyase,CSE)和胱硫醚合成酶(cystathionine β-synthase,CBS)的表达显著下降.筛选出3 640个差异基因,其中317个与细胞衰老、580个与细胞增殖、43个与凋亡相关.通过蛋白互作网络分析,Jun、MAPK1和MAPK3等关键基因被识别,提示H2S可能通过调控Jun/MAPK信号通路影响HCC的发生发展.结论 H2S在HCC中可能通过Jun/MAPK通路发挥的调控作用,为H2S在HCC中的分子机制研究和潜在治疗应用提供了基础.
Exploring the effects of exogenous hydrogen sulfide on hepatoma cell line HepG2 by RNA-seq
Objective To investigate the effects of exogenous hydrogen sulfide(H2S)on HCC and the possible mo-lecular mechanisms,and to provide experimental support for the diagnosis and treatment of HCC.Methods Gene ex-pression data of HCC were obtained from the GEO database.Transcriptomic data(RNA-seq)of HepG2 cells treated with exogenous H2S were analyzed to identify differentially expressed genes(DEGs).GO and KEGG pathway enrichment analyses were conducted to explore the main biological functions and pathways associated with these DEGs.Results GEO analysis revealed that the expression levels of key H2S-producing enzymes,cystathionine γ-lyase(CSE)and cystathi-onine β-synthase(CBS),were significantly reduced in HCC tissues compared to normal tissues.A total of 3 640 DEGs were identified,among which 317 were related to cellular senescence,580 to cell proliferation,and 43 to apoptosis.Protein-protein interaction network analysis highlighted Jun,MAPK1 and MAPK3 as key genes,suggesting that the effects of H2S on HCC may be associated with the Jun/MAPK signaling pathway.Conclusion H2S may regulate HCC development through the Jun/MAPK pathway,offering a basis for further exploration of H2S in the molecular mecha-nisms and potential therapeutic applications in HCC.

H2SHepatocellular carcinomaRNA-seq

孙睿、马佳艺、王珊珊、李磊

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首都医科大学附属北京佑安医院,北京肝病研究所,北京 100069

首都医科大学附属北京佑安医院肝病消化中心

首都医科大学附属北京积水潭医院消化内科

硫化氢 肝细胞癌 转录组学

2024

胃肠病学和肝病学杂志
郑州大学

胃肠病学和肝病学杂志

CSTPCD
影响因子:1.029
ISSN:1006-5709
年,卷(期):2024.33(12)