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熊去氧胆酸应答不佳原发性胆汁性胆管炎女性患者肝组织lncRNAmRNA差异表达分析
作者:高丽丽  张亦瑾  高学松  李洪杰  刘楠  高萍  段雪飞 
单位:首都医科大学附属北京地坛医院 综合科 北京 100015 
关键词:原发性胆汁性胆管炎 应答不佳 长链非编码RNA 
分类号:
出版年,卷(期):页码:2023,15(2):47-53
摘要:

 摘要:目的 筛选熊去氧胆酸(ursodeoxycholic acidUDCA)应答不佳原发性胆汁
性胆管炎(
primary biliary cholangitisPBC)女性患者肝组织长链非编码RNAlong
noncoding ribonucleic acid
lncRNA)、 mRNA差异表达基因,并进行生物信息学分
析。探讨其在
PBC应答不佳中的作用及潜在功能。 方法 收集20167月至20177月首
都医科大学附属北京地坛医院
6例女性PBC患者的肝组织穿刺标本,其中3例对UDCA
应答好(对照组),另外3例对UDCA应答不佳(试验组)。通过RNA提取、纯化、扩
增及芯片实验,以差异倍数(
fold changeFC) ≥ 1.5倍, P 0.05作为筛选条件,利
Illumina高通量测序技术检测6PBC患者肝组织中lncRNAmRNA的表达水平,筛
选差异表达的
lncRNAmRNA。对差异表达的LncRNAmRNA进行基因本体(gene
ontology
GO)功能分析、信号转导通路富集分析(kyoto encylopaedia of genes and
genomes
KEGG分析)及蛋白互作网络分析,寻找与PBC应答不佳相关的lncRNA
结果 共检测到差异表达的mRNA 599个(312个上调, 287个下调)、 lncRNA 1167
685个上调, 482个下调)。 GOKEGG分析发现,差异表达的mRNA与甘油三酯、
长链脂肪酸代谢、胆固醇排出、糖原异生及正向调节血管生成等相关。而这些
mRNA
与核受体过氧化物酶体增殖激活受体(peroxisome proliferator-activated receptor
PPAR)信号通路、转化生长因子βtransforming growth factor betaTGF-β)信号通
路、脂肪酸降解通路、细胞因子受体相互作用信号通路等相关。差异表达
lncRNA的靶
基因与磷代谢、磷酸盐代谢、能量代谢、细胞活化、免疫效应调节、抗原加工和提呈
相关。这些靶基因与病毒感染通路、泛素介导的蛋白降解通路、线粒体自噬通路、细
胞因子受体相关通路、
Wnt信号通路相关。 结论 本研究是PBC应答不佳相关lncRNA
的补充,研究发现了一定数量差异表达的
lncRNA,并预测其功能靶向基因及涉及信号
通路,有望为
PBC应答不佳研究提供新的参考依据。

Abstract: Objective To investigate the expression profile and biological functions of long
non-coding RNA (lncRNA) and mRNA in liver tissue of female primary biliary cholangitis

(PBC) patients with poor response to ursodeoxycholic acid (UDCA). Methods Liver biopsy
tissues were collected from 6 female patients with PBC in Beijing Ditan Hospital, Capital
Medical University from July 2015 to July 2016, including 3 patients with good response to
UDCA (control group) and 3 patients with poor response to UDCA (experimental group).
The tissues were subjected to RNA extraction, purification, amplification and microarray
experiments. The expression levels of lncRNA and mRNA were detected using illumina highthroughput sequencing technology. Differentially expressed lncRNA and mRNA were screened
with fold difference (FC)
1.5-fold and P 0.05 as screening conditions. Differentially
expressed lncRNA and mRNA were analyzed by gene ontology (GO) functional analysis,
signal transduction pathway enrichment (KEGG) analysis and protein interaction network
analysis.
Results A total of 599 differentially expressed mRNA (312 were up-regulated
and 287 were downregulated) and 1167 lncRNA (685 were up-regulated and 482 were
downregulated) were detected. GO and KEGG analysis revealed that differentially expressed
mRNA were associated with triglyceride, long-chain fatty acid metabolism, cholesterol ef?ux,
gluconeogenesis, positive regulation of sprouting angiogenesis and so on. These mRNA are
associated with nuclear receptor peroxisome proliferator-activated receptor (PPAR) signaling
pathway, transforming growth factor beta (TGF-β) signaling pathway, fatty acid degradation
pathway, cytokine-cytokine receptor interaction signaling pathway and so on. The target genes
of differentially expressed lncRNA are associated with phosphorus metabolism, phosphate
metabolism, energy metabolism, cell activation, immune effect regulation, antigen processing
and presentation. These target genes are associated with viral infection pathways, mitophagy
pathways, cytokine receptor-related pathways and Wnt signaling pathways.
Conclusions This
study is a supplement to the lncRNA profle associated with poor response in PBC. A certain
number of differentially expressed lncRNA were found, and their functionally targeted genes
and signaling pathways were predicted, which is expected to provide a new reference for the
study of poor response in PBC.


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