利用文本提取工具构建乳杆菌肽聚糖特异性免疫调节网络
首发时间:2008-03-18
摘要:目的: 探索乳杆菌肽聚糖免疫调节作用的机理。方法:BALB/c小鼠腹腔注射乳杆菌肽聚糖,从腹腔巨噬细胞和脾淋巴细胞提取RNA,基因芯片分析基因表达情况,利用Medscan从pubmed文献摘要提取肽聚糖相关基因网络,映射芯片数据获得乳杆菌肽聚糖特异基因网络。结果: 乳杆菌肽聚糖主要通过TLR2-NFkb信号通路激活炎性细胞因子的表达,但是PGRP-L可能通过降解肽聚糖对此通路有负调节作用,NF-κb的激活可能诱导NOD2表达,对此通路进行负调节。结论:乳杆菌肽聚糖通过与多种受体作用诱导独特的免疫反应,维持机体免疫稳态。
关键词: 乳杆菌;肽聚糖; 基因网络; 基因芯片
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Building of Lactobacillus peptidoglycan specific immune modulating pathway by text-miming approach
Abstract:AIM : To investigate the mechanism that Lactobacillus peptidoglycan modulating mammal immune response. METHODS: BALB/c mice were administrated (i.p.) with Lactobacillus peptidoglcyan once or three times. Peritoneal macrophages and splenic lymphocytes were isolated for gene expression analysis using genechip. Medscan were used to building a specific immune modulating pathway based on published relating scientific papers. RESULTS: The pathway implied that PGN induced a pro-inflammatory response pathway mediated by TLR2 and NF-κb. However, the response was under subtle modulation by peptidoglycan reorganization proteins L and NOD2. CONCLUSIONS: Lactobacillus peptidoglycan induces a distinct immune response to maintain host immune homeostasis.
Keywords: Lactobacilli, peptidoglycan, gene pathway, genechip
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利用文本提取工具构建乳杆菌肽聚糖特异性免疫调节网络
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