Nat Commun:食品防腐剂可融入培养细胞的表观基因组

2018-08-29 Nature自然科研 Nature自然科研

《自然-通讯》近日发表的一项研究Lysine benzoylation is a histone mark regulated by SIRT2表明,食品防腐剂苯甲酸钠能通过培养细胞融入其表观基因组——表观基因组指基因组中调控基因表达的一系列标记物。该研究结果提出了一种能将膳食成分整合到细胞内的潜在机制。不过,食用苯甲酸钠的生物体内能否检测到类似结果仍待进一步研究。

《自然-通讯》近日发表的一项研究Lysine benzoylation is a histone mark regulated by SIRT2表明,食品防腐剂苯甲酸钠能通过培养细胞融入其表观基因组——表观基因组指基因组中调控基因表达的一系列标记物。该研究结果提出了一种能将膳食成分整合到细胞内的潜在机制。不过,食用苯甲酸钠的生物体内能否检测到类似结果仍待进一步研究。

越来越多的证据表明,饮食不仅能影响我们的身体健康和预期寿命,还可能帮助我们预防特定疾病,如肥胖、糖尿病、癌症和精神疾病。不过,饮食对人体生理机能的影响机制尚不明确。实现细胞功能修饰的一种可能方式是通过表观遗传调控。赖氨酸乙酰化和苯甲酰化。

美国芝加哥大学的Yingming Zhao及同事运用蛋白质组学和生物化学方法,在体外培养的细胞中发现了赖氨酸苯甲酰化(lysine benzoylation)这种新型组蛋白翻译后修饰。作者发现,这种组蛋白标记的沉积会影响细胞的基因表达,从而影响各种代谢相关通路,如胰岛素的分泌。作者认为苯甲酸钠是赖氨酸苯甲酰化修饰底物的一大来源,且苯甲酸钠能促进这种组蛋白标记的累积。

原始出处:
He Huang, Di Zhang, Yi Wang,et al.Lysine benzoylation is a histone mark regulated by SIRT2.Nature Communications.volume9, Article number: 3374 (2018) .Published: 28 August 2018

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    2018-11-07 liuli5079
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    2019-04-30 liye789132251
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    2018-08-29 龙胆草

    学习谢谢分享

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