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miRNAs-MUC 13调控体系中与仔猪腹泻有关的基因与通路

文献类型: 中文期刊

作者: 路伏增 1 ; 华卫东 1 ; 褚晓红 1 ; 戴丽荷 1 ; 陈晓宇 1 ; 章利丰 1 ; 王志刚 1 ; 徐如海 1 ;

作者机构: 1.浙江省农业科学院畜牧兽医研究所

关键词: Mucin;13;MICRORNA;仔猪腹泻;基因网络

期刊名称: 浙江农业学报

ISSN:

年卷期: 2023 年 012 期

页码: 2785-2793

收录情况: 北大核心 ; CSCD

摘要: 为研究microRNAs-Mucin 13(miRNAs-MUC 13)调控体系中与仔猪腹泻相关的分子调控机制,对miRNAs-MUC 13调控体系中与仔猪腹泻有关的基因与通路进行了发掘与验证.用NCBI的blastn工具比对了小鼠MUC 13基因和猪基因库中的核酸序列,发现两者的相似性在74%~87%,同源性较高.以小鼠为模型,选择miRDB、mirTarBase、TargetScan数据库预测调控MUC 13基因的miRNA序列,通过StarBase数据库预测这些miRNA序列的靶基因,得到36个靶基因交集.用Cytoscape软件围绕MUC 13和这36个靶基因构建仔猪腹泻基因互作网络,该网络包含19个筛选到的靶基因,基于MCOMD算法分析获得4个分子复合物集团.通过DAVID平台对这4个分子复合物进行基因和通路富集分析,结果发现,靶基因SRF和STAG 2及其参与的有关通路与仔猪腹泻相关.以大肠埃希菌200和仔猪肠上皮细胞系(IPEC-1)作为试验材料,通过体外细胞试验设计仔猪腹泻模型进行验证,实时荧光定量PCR(qRT-PCR)检测结果显示,试验组MUC 13、SRF、IL-6、MAPK、STAG 2、NF-κB、TLR 7等基因的表达量均显著(P<0.05)高于对照组,由此推测,SRF与STAG 2基因在miRNAs-MUC 13调控体系中分别通过MAPK、IL6、Toll-like受体信号通路参与仔猪腹泻调控.围绕miRNAs-MUC 13调控体系发掘了4个分子复合物集团和2个核心基因(SRF和STAG 2)并进行了试验验证,这为靶向治疗仔猪腹泻提供了理论参考和科学依据.

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