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Regulatory functions of FKBP5 intronic regions associated with psychiatric disorders
Journal of Psychiatric Research ( IF 4.8 ) Pub Date : 2021-08-18 , DOI: 10.1016/j.jpsychires.2021.08.014
Mariana S Mendonça 1 , Paula M Mangiavacchi 2 , Álvaro F L Rios 1
Affiliation  

The FKBP5 gene codifies a co-chaperone protein associated with the modulation of glucocorticoid receptor interaction involved in the adaptive stress response. The FKBP5 intracellular concentration affects the binding affinity of the glucocorticoid receptor (GR) to glucocorticoids (GCs). This gene has glucocorticoid response elements (GREs) located in introns 2, 5 and 7, which affect its expression. Recent studies have examined GRE activity and the effects of genetic variants on transcript efficiency and their contribution to susceptibility to behavioral disorders. Epigenetic changes and environmental factors can influence the effects of these allele-specific variants, impacting the response to GCs of the FKBP5 gene. The main epigenetic mark investigated in FKBP5 intronic regions is DNA methylation, however, few studies have been performed for all GREs located in these regions. One of the major findings was the association of low DNA methylation levels in the intron 7 of FKBP5 in patients with psychiatric disorders. To date, there are no reports of DNA methylation in introns 2 and 5 of the gene associated with diagnoses of psychiatric disorders. This review highlights what has been discovered so far about the relationship between polymorphisms and epigenetic targets in intragenic regions, and reveals the gaps that need to be explored, mainly concerning the role of DNA methylation in these regions and how it acts in psychiatric disease susceptibility.



中文翻译:

与精神疾病相关的 FKBP5 内含子区域的调节功能

FKBP5 基因编码一种与调节糖皮质激素受体相互作用相关的辅助伴侣蛋白,该相互作用涉及适应性应激反应。FKBP5 细胞内浓度影响糖皮质激素受体 (GR) 与糖皮质激素 (GC) 的结合亲和力。该基因具有位于内含子 2、5 和 7 中的糖皮质激素反应元件 (GRE),影响其表达。最近的研究检查了 GRE 活性和遗传变异对转录效率的影响及其对行为障碍易感性的贡献。表观遗传变化和环境因素会影响这些等位基因特异性变体的作用,从而影响对 FKBP5 基因 GC 的反应。在 FKBP5 内含子区域研究的主要表观遗传标记是 DNA 甲基化,然而,对位于这些地区的所有 GRE 进行的研究很少。主要发现之一是精神疾病患者 FKBP5 内含子 7 中低 DNA 甲基化水平的关联。迄今为止,没有关于与精神疾病诊断相关的基因内含子 2 和 5 中 DNA 甲基化的报道。这篇综述突出了迄今为止关于基因内区域多态性与表观遗传靶标之间关系的发现,并揭示了需要探索的差距,主要涉及DNA甲基化在这些区域中的作用及其在精神疾病易感性中的作用。没有关于与精神疾病诊断相关的基因的内含子 2 和 5 中 DNA 甲基化的报道。这篇综述突出了迄今为止关于基因内区域多态性与表观遗传靶标之间关系的发现,并揭示了需要探索的差距,主要涉及DNA甲基化在这些区域中的作用及其在精神疾病易感性中的作用。没有关于与精神疾病诊断相关的基因的内含子 2 和 5 中 DNA 甲基化的报道。这篇综述突出了迄今为止关于基因内区域多态性与表观遗传靶标之间关系的发现,并揭示了需要探索的差距,主要涉及DNA甲基化在这些区域中的作用及其在精神疾病易感性中的作用。

更新日期:2021-08-23
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