Role of histone deacetylases in bone development and skeletal disorders.

Role of histone deacetylases in bone development and skeletal disorders.
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组蛋白去乙酰化酶在骨发育和骨骼疾病中的作用。

DOI:
10.1016/j.bone.2020.115606
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发表时间:
2021-03
期刊:
影响因子:
4.1
通讯作者:
Wein MN
Wein MN
中科院分区:
医学2区
文献类型:
--
作者:
Wang JS;Yoon SH;Wein MN

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骨细胞必须不断地对激素和机械信号做出反应,以改变基因表达程序。在细胞用于动态改变细胞类型特异性基因表达的无数表观基因组机制中,组蛋白乙酰化和去乙酰化在过去二十年中受到强烈关注。组蛋白脱乙酰基酶(HDAC)代表了具有保守的脱乙酰基酶结构域的蛋白质大家族,其首先被描述为使组蛋白尾部上的赖氨酸残基脱乙酰基。现在认识到,存在多种HDAC,其中一些明显被错误命名,因为组蛋白尾部上的乙酰化赖氨酸残基不是其脱乙酰酶结构域的主要功能。在这里,我们将审查在骨细胞中的脱乙酰基酶结构域的蛋白质轴承的作用,专注于目前的遗传证据,为每个人的HDAC基因。虽然I类HDAC是核蛋白,其主要作用是使组蛋白脱乙酰化,但IIa类和III类HDAC具有其他重要的细胞功能。对个体HDAC在骨发育和重塑中的作用的详细了解将为未来在治疗骨质疏松症等骨骼疾病中专门针对个体HDAC家族成员的努力奠定基础。
Bone cells must constantly respond to hormonal and mechanical cues to change gene expression programs. Of the myriad of epigenomic mechanisms used by cells to dynamically alter cell type-specific gene expression, histone acetylation and deacetylation has received intense focus over the past two decades. Histone deacetylases (HDACs) represent a large family of proteins with a conserved deacetylase domain first described to deacetylate lysine residues on histone tails. It is now appreciated that multiple classes of HDACs exist, some of which are clearly misnamed in that acetylated lysine residues on histone tails is not the major function of their deacetylase domain. Here, we will review the roles of proteins bearing deacetylase domains in bone cells, focusing on current genetic evidence for each individual HDAC gene. While class I HDACs are nuclear proteins whose primary role is to deacetylate histones, class IIa and class III HDACs serve other important cellular functions. Detailed knowledge of the roles of individual HDACs in bone development and remodeling will set the stage for future efforts to specifically target individual HDAC family members in the treatment of skeletal diseases such as osteoporosis.
SIRT3 线粒体脱乙酰酶在细胞生理学、癌症和神经退行性疾病中的功能。
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