Differential Gene Expression Profiles in Human THP-1 Monocytes Treated with Lactobacillus plantarum or Staphylococcus aureus Lipoteichoic Acid

文献类型： 外文期刊

第一作者： Zeng, Ri-Zhong

作者： Zeng, Ri-Zhong;Kim, Han Geun;Kim, Na Ra;Geun, Min;Chung, Dae Kyun;Zeng, Ri-Zhong;Kim, Han Geun;Kim, Na Ra;Geun, Min;Chung, Dae Kyun;Ko, Mi Yeon;Lee, Seung Yeon;Chung, Dae Kyun;Kim, Chul Min;Chung, Dae Kyun;Zeng, Ri-Zhong;Chung, Dae Kyun

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关键词： Human acute monocytic leukemia cell line (THP-1);Gene expression profile;Lactoabcillus plantarum;Lipoteichoic acid;Oligonucleotide microarray;Staphylococcusaureus

期刊名称：JOURNAL OF THE KOREAN SOCIETY FOR APPLIED BIOLOGICAL CHEMISTRY （ 影响因子：1.129； 五年影响因子：0.84 ）

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收录情况： SCI

摘要： The lipoteichoic acid (LTA) of Staphylococcus aureus (aLTA) and Lactobacillus plantarum (pLTA) engage the same toll-like receptor 2 (TLR2) signaling pathway but exert different effects on innate immunity and inflammation. The mechanisms underlying these differential effects are not yet clear. Human oligonucleotide microarrays were used to investigate the transcriptome of human THP-1 monocytes upon exposure to aLTA or pLTA, and differential gene expression profiles were observed between the aLTA- andpLTA-treated cells. The expression level of 1,302 genes in aLTA-treated cells increased more than 2-fold; some of which have been implicated in immune or inflammatory responses, cell adhesion, cell signal transduction, transcription factors, anion transport, proteolysis, and oxidative processes. Particularly, a variety of genes that encode cytokines and chemokines, and TLR signaling-related molecules belonging to the tumor necrosis factor receptor-associated factor (TRAF), nuclear factor-kappa B, and signal transducer and activator of transcription families were remarkably up-regulated by aLTA stimulation. In contrast, pLTA treatment altered the expression of only 90 genes by more than 1.5-fold, and these genes were not correlated with innate immunity,inflammation or other related processes. The different effects mediated by aLTA and pLTA were further verified and compared by analysis of the expression of a selected group of genes, including TRAFs and some cytokines and chemokines, using real time-polymerase chain reaction and ELISA. These data suggest that aLTA and pLTA have different immunomodulatory potentials. Compared with pLTA, aLTA is a stronger stimulator and impacts the expression of many innate immunity- and/or inflammation-related genes.

分类号： S1

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