Insights into miRNA regulation of the human glycome.

Insights into miRNA regulation of the human glycome.
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DOI:
10.1016/j.bbrc.2014.01.034
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发表时间:
2014-03-21
影响因子:
3.1
通讯作者:
Mahal, Lara K.
Mahal, Lara K.
中科院分区:
生物学4区
文献类型:
--
作者:
Kasper, Brian T.;Koppolu, Sujeethraj;Mahal, Lara K.

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糖基化是一个复杂的过程,需要多种蛋白质的协调作用,包括糖基转移酶、糖苷酶、糖核苷酸转运体和运输蛋白。几个小组的工作指出,microRNA(MiRNA)在控制参与癌症、神经迁移和成骨细胞形成的特定糖基转移酶水平方面发挥了作用。我们实验室最近的工作表明,miRNA是糖糖的主要调节者,通过调节酶水平将基因组信息翻译成糖码。在这里,我们将预测的糖基化相关基因(糖基因)的miRNA调控叠加到常见的N-连接和O-连接的糖生物合成途径的图谱上,以确定糖糖的关键调控节点。我们的分析提供了对多糖调节的洞察力,并表明在调节水平上,糖基因是非多余的。
Glycosylation is an intricate process requiring the coordinated action of multiple proteins, including glycosyltransferases, glycosidases, sugar nucleotide transporters and trafficking proteins. Work by several groups points to a role for microRNA (miRNA) in controlling the levels of specific glycosyltransferases involved in cancer, neural migration and osteoblast formation. Recent work in our laboratory suggests that miRNA are a principal regulator of the glycome, translating genomic information into the glycocode through tuning of enzyme levels. Herein we overlay predicted miRNA regulation of glycosylation related genes (glycogenes) onto maps of the common N-linked and O-linked glycan biosynthetic pathways to identify key regulatory nodes of the glycome. Our analysis provides insights into glycan regulation and suggests that at the regulatory level, glycogenes are non-redundant.
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