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首页> 外文期刊>Epigenetics: official journal of the DNA Methylation Society >Hepatic ontogeny and tissue distribution of mRNAs of epigenetic modifiers in mice using RNA-sequencing
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Hepatic ontogeny and tissue distribution of mRNAs of epigenetic modifiers in mice using RNA-sequencing

机译:RNA测序技术在小鼠肝脏中的发育和表观遗传修饰子mRNA的组织分布

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摘要

Developmental regulation of gene expression is controlled by distinct epigenetic signatures catalyzed by various epigenetic modifiers. Little is known about the ontogeny and tissue distribution of these epigenetic modifiers. In the present study, we used a novel approach of RNA-sequencing to elucidate hepatic ontogeny and tissue distribution of mRNA expression of 142 epigenetic modifiers, including enzymes involved in DNA methylation/demethylation, histone acetylation/deacetylation, histone methylation/demethylation, histone phosphorylation and chromosome remodeling factors in male C57BL/6 mice. Livers from male C57BL/6 mice were collected at 12 ages from prenatal to adulthood. Many of these epigenetic modifiers were expressed at much higher levels in perinatal livers tha n adult livers, such asDnmt1, Dnmt3a, Dnmt3b, Apobec3, Kat1, Ncoa4, Setd8, Ash2l, Dot1l, Cbx1, Cbx3, Cbx5, Cbx6, Ezh2, Suz12, Eed, Suv39h1, Suv420h2, Dek, Hdac1, Hdac2, Hdac7, Kdm2b, Kdm5c, Kdm7, Prmt1-5, Prmt7, Smarca4, Smarcb1, Chd4 and Ino80e. In contrast, hepatic mRNA expression of a few epigenetic modifiers increased during postnatal liv er development, such as Smarca2, Kdm1b, Cbx7 and Chd3. In adult mice (60 d of age), most epigenetic modifiers were expressed at moderately (1-3-fold) higher levels in kidney and/or small intestine than liver. In conclusion, this study, for the first time, unveils developmental changes in mRNA abundance of all major known epigenetic modifiers in mouse liver. These data suggest that ontogenic changes in mRNA expression of epigenetic modifiers may play important roles in determining the addition and/or removal of corresponding epigenetic signatures during liver development.
机译:基因表达的发育调控受各种表观遗传修饰子催化的不同表观遗传标志的控制。这些表观遗传修饰子的个体发育和组织分布知之甚少。在本研究中,我们使用一种新颖的RNA测序方法来阐明142种表观遗传修饰剂的肝细胞发生和组织mRNA表达的分布,包括参与DNA甲基化/去甲基化,组蛋白乙酰化/去乙酰化,组蛋白甲基化/去甲基化,组蛋白磷酸化的酶C57BL / 6雄性小鼠的染色体和染色体重塑因子。从产前到成年,在12岁时收集雄性C57BL / 6小鼠的肝脏。这些表观遗传修饰剂中的许多在成年肝脏的围产期肝脏中表达水平更高,例如Dnmt1,Dnmt3a,Dnmt3b,Apobec3,Kat1,Ncoa4,Setd8,Ash2l,Dot11,Cbx1,Cbx3,Cbx5,Cbx6,Ezh2,Suz2 Eed,Suv39h1,Suv420h2,Dek,Hdac1,Hdac2,Hdac7,Kdm2b,Kdm5c,Kdm7,Prmt1-5,Prmt7,Smarca4,Smarcb1,Chd4和Ino80e。相反,一些表观遗传修饰子在肝脏的mRNA表达在出生后的生命发展过程中增加,例如Smarca2,Kdm1b,Cbx7和Chd3。在成年小鼠(60 d龄)中,大多数表观遗传修饰因子在肾脏和/或小肠中的表达水平均较肝脏高(1-3倍)。总之,这项研究首次揭示了小鼠肝脏中所有​​主要已知表观遗传修饰子的mRNA丰度的变化。这些数据表明,表观遗传修饰子的mRNA表达中的本体变化可能在确定肝脏发育过程中相应表观遗传标记的添加和/或去除中起重要作用。

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