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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Role For β-catenin And Hox Transcription Factors In Caenorhabditis Elegans And Mammalian Host Epithelial-pathogen Interactions
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Role For β-catenin And Hox Transcription Factors In Caenorhabditis Elegans And Mammalian Host Epithelial-pathogen Interactions

机译:β-catenin和Hox转录因子在秀丽隐杆线虫和哺乳动物宿主上皮-病原体相互作用中的作用

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We used the model nematode Caenorhabditis elegans infected with the human pathogen Staphylococcus aureus to identify components of epithelial immunity. Transcriptional profiling and reverse genetic analysis revealed that mutation of the C. elegans β-catenin homolog bar-1 or the downstream homeobox gene eg/-5 results in a defective response and hypersensitivity to 5. aureus infection. Epistasis analysis showed that bar-1 and egl-5 function in parallel to previously described C elegans immune-response pathways. Overexpression of human homologs of egl-5 modulated NF-κB-dependent TLR2 signaling in epithelial cells. These data suggest that β-catenin and homeobox genes play an important and conserved role in innate immune defense.
机译:我们使用感染了人类病原体金黄色葡萄球菌的线虫秀丽隐杆线虫模型来鉴定上皮免疫的成分。转录谱分析和反向遗传分析表明,秀丽隐杆线虫β-catenin同源bar-1或下游同源盒基因eg //-5的突变导致对金黄色葡萄球菌感染的反应不良和超敏性。上位性分析表明,bar-1和egl-5与先前描述的秀丽隐杆线虫免疫反应途径平行起作用。 egl-5的人类同源物在上皮细胞中的过表达调节了NF-κB依赖性TLR2信号传导。这些数据表明,β-连环蛋白和同源盒基因在先天免疫防御中起着重要且保守的作用。

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