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罗伊氏乳杆菌诱导肠道上皮内CD4^+CD8α α^+双阳性T淋巴细胞产生
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作者 易宏波 Cervantes-Barragan +24 位作者 L. Chai J.N. Tianero M.D. Di Luccia B. Ahern p.p. Merriman J. Cortez.V.S. Caparon M.G. Donia M.S. Gilfillan S. Cella M. Gordon J.I. Hsieh C.S. Colonna M. 《广东饲料》 2018年第2期52-52,共1页
小肠组织包含CD4^+CD8αα^+双阳性上皮内T淋巴细胞(DP IELs),它们来源于低表达转录因子Th POK的肠道CD4^+T细胞并且具有调节功能。在无菌小鼠中缺乏DP IELs,提示它们的分化依赖于微生物。本研究发现,不同环境下的小鼠DP IELs数量不同,... 小肠组织包含CD4^+CD8αα^+双阳性上皮内T淋巴细胞(DP IELs),它们来源于低表达转录因子Th POK的肠道CD4^+T细胞并且具有调节功能。在无菌小鼠中缺乏DP IELs,提示它们的分化依赖于微生物。本研究发现,不同环境下的小鼠DP IELs数量不同,且与罗伊氏乳杆菌的存在有相关性。罗伊氏乳杆菌诱导无菌小鼠DP IELs的产生,而正常饲养小鼠缺乏DP IELs。罗伊氏乳杆菌没有改变DP-IEL-TCR的作用模式,但是产生内源性色氨酸激活CD4^+T细胞的芳烃受体,导致Th POK下调,进而分化成DP IELs。因此,罗伊氏乳杆菌配合色氨酸丰富的日粮,能够将肠道上皮内CD4^+T细胞重塑为免疫调节性T细胞。 展开更多
关键词 T淋巴细胞 CD4^+ CD8Α 阳性 上皮 肠道 乳杆菌 诱导
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Design of Agents Interacting with Immunoregulating Proteins:Potential Inhibitors of the Phenylpyruvate Tautomerase Activity Catalysed by Macrophage Migration Inhibitory Factor (MIF)
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作者 CARPY Alain J.M. +3 位作者 HAASBROEK p.p. OLIVER D.W. 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2003年第10期1256-1262,共7页
The macrophage migration inhibitory factor has been implicated in a number ofimmune and inflammatory processes. MIF presents particular opportunities for drug design anddevelopment with potential therapeutic applicati... The macrophage migration inhibitory factor has been implicated in a number ofimmune and inflammatory processes. MIF presents particular opportunities for drug design anddevelopment with potential therapeutic applications. Drug design strategies taking intoconsideration of specific stereochemical and tautomeric requirements in the interaction of MIF withsubstrates and inhibitors allow several novel structures to be designed. Our investigationssuccessfully explored the tautomeric and stereochemical aspects of new compounds of the2-phenylpyruvic acid type, both experimentally, through synthesis and structural investigations andcomputationally, through molecular mechanics and quantum mechanics calculations. 展开更多
关键词 macrophage migration inhibitory factor phenylpyru-vate tautomerase activity AZLACTONE phenylpyruvic acid derivative
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