Nature:共生细菌产生可以模拟人信号分子的GPCR配体

2017-08-31 海北 MedSci原创

共生细菌在人类健康中起着至关重要的作用。但是至今为止,我们对它们影响哺乳动物生理特征的机制依旧知之甚少。但是毋庸置疑的是,细菌代谢物是其和宿主相互作用中的关键组成部分。 来自洛克菲勒大学的研究人员利用生物信息学和合成生物学的手段,在人类微生物群中寻找和G-蛋白偶联受体(GPCR)相互作用的N-酰基酰胺。

共生细菌在人类健康中起着至关重要的作用。但是至今为止,我们对它们影响哺乳动物生理特征的机制依旧知之甚少。但是毋庸置疑的是,细菌代谢物是其和宿主相互作用中的关键组成部分。

来自洛克菲勒大学的研究人员利用生物信息学和合成生物学的手段,在人类微生物群中寻找和G-蛋白偶联受体(GPCR)相互作用的N-酰基酰胺。

研究人员发现,肠道微生物中富含N-酰基酰胺合成酶基因,它们编码的脂质可以和GPCR相互作用,以调节胃肠道生理学特征。研究人员在小鼠和细胞模型中的研究显示,和人源配体类似,共生GPR119激动剂能够有效调节代谢激素和葡萄糖的体内平衡。但是研究人员也坦言,我们还需要未来的研究,来确定其在人类中潜在的生理作用。

因此,研究人员的结果显示,对真核生物信号分子的化学模拟在共生细菌中可能是常见的。我们可能可以通过小分子影响微生物基因编码的代谢物,改变宿主细胞应答。这是一种潜在的治疗模式(微生物生物合成基因治疗)。


原始出处:

Louis J. Cohen et al. Commensal bacteria make GPCR ligands that mimic human signalling moleculesNature, 2017; DOI: 10.1038/nature23874


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    2018-02-19 马龙
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    2017-09-01 Tommy1950
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    2018-02-11 liye789132251
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    2017-08-31 Y—xianghai

    学习了新知识

    0

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    2017-08-31 小小瑞

    期待深入研究结果

    0

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