去乙酰化酶sirtuins在脓毒症中的作用:有利还是有害?

Role of deacetylase sirtuins in sepsis:beneficial or harmful?

脓毒症是宿主对感染的反应失调导致的危及生命的器官功能障碍,严重危害公众健康。迄今为止,脓毒症机制尚未完全诠释,仍然是众多临床医生及实验室研究人员面临的巨大挑战。近年来,越来越多的实验证明去乙酰化酶sirtuins在脓毒症的不同阶段均发挥了重要作用,而sirtuins的作用机制尚不明确。Sirtuins家族由7个成员组成,其中sirtuin 1已被广泛报道;除sirtuin 1外,也有其他成员参与了脓毒症炎症及代谢通路调节的报道。值得一提的是,sirtuins家族各成员间可能存在着相互调控的作用网络。因此,根据美国国立医学图书馆(PubMed)数据库近年来发布的相关文献,对sirtuin 1/2的可能机制及sirtuin 3的下游效应进行总结,通过归纳脓毒症中sirtuins家族成员间的相互作用,为以后的研究及潜在的临床应用提供依据。

Sepsis, life-threatening organ dysfunction caused by a dysregulated host response to infection, is a major public health concern. To date, the mechanism of sepsis is not completely understood, which is still a huge task ahead of numerous clinical and laboratory researchers. Recently, increasing evidences show that deacetylase sirtuins play an important role in sepsis and the function of sirtuins are varied in different stages of sepsis. More importantly, the mechanism of sirutins is not fully understood. The sirtuins family is composed by sirtuin 1-7 members. Among them, sirtuin 1 is widely reported. In addition to sirtuin 1, other members of sirtuins are also involved in the regulation of inflammation or metabolism signaling following sepsis. Of note, the sirtuins may interact with each other and form a precious control mechanism. Herein, we tried to summarize the recent paper from PubMed, to explain the possible mechanism of distinct role of sirtuin 1/2, to generalize the downstream effects of sirtuin 3 action, and to describe the interactions among sirtuins members on sepsis, which might be helpful for our future research and potential clinical applications.