Identification of a dysfunctional exon-skipping splice variant in GLUT9/SLC2A9 causal for renal hypouricemia type 2.

Identification of a dysfunctional exon-skipping splice variant in GLUT9/SLC2A9 causal for renal hypouricemia type 2.
复制标题

DOI:
10.3389/fgene.2022.1048330
复制
发表时间:
2022
影响因子:
3.7
通讯作者:
--
中科院分区:
生物学3区
文献类型:
--
作者:

文献摘要

参考文献

相似文献

肾性低尿酸血症(RHUC)是一种病理状态,其特征是血清尿酸极低和肾脏中尿酸盐过度分泌;根据编码具有生理重要性的尿酸盐转运蛋白URAT 1和GLUT 9的致病基因,将这种遗传性疾病分为1型和2型;然而,对2型RHUC的研究仍落后于1型。我们在此描述了一个典型的家族性病例RHUC 2型发现在斯洛伐克家庭与严重的低尿酸血症和高尿酸尿。通过包括全外显子组测序和体外功能测定在内的临床遗传学分析,我们确定了一种内含子GLUT 9变体c.1419+1G>A作为可能导致p.Gly431GlufsTer28表达的因果突变,p.Gly431GlufsTer28是一种由外显子11跳读产生的功能缺失变体。在另一个不相关的马其顿轻度低尿酸血症家族中也证实了因果关系。因此,在低尿酸血症的基因诊断过程中,非编码区也应该考虑在内。我们的研究结果提供了一个更好的致病RHUC和GLUT 9的病理生理重要性的理解。
Renal hypouricemia (RHUC) is a pathological condition characterized by extremely low serum urate and overexcretion of urate in the kidney; this inheritable disorder is classified into type 1 and type 2 based on causative genes encoding physiologically-important urate transporters, URAT1 and GLUT9, respectively; however, research on RHUC type 2 is still behind type 1. We herein describe a typical familial case of RHUC type 2 found in a Slovak family with severe hypouricemia and hyperuricosuria. Via clinico-genetic analyses including whole exome sequencing and in vitro functional assays, we identified an intronic GLUT9 variant, c.1419+1G>A, as the causal mutation that could lead the expression of p.Gly431GlufsTer28, a functionally-null variant resulting from exon 11 skipping. The causal relationship was also confirmed in another unrelated Macedonian family with mild hypouricemia. Accordingly, non-coding regions should be also kept in mind during genetic diagnosis for hypouricemia. Our findings provide a better pathogenic understanding of RHUC and pathophysiological importance of GLUT9.
DOI: 10.1016/j.berh.2021.101717
发表时间: 2021-12
期刊: Best practice & research. Clinical rheumatology
影响因子: --
作者:
Halperin Kuhns VL;Woodward OM
通讯作者: Woodward OM
第三纪念医院患病率和可能导致低血血症的原因。
DOI: 10.3904/kjim.2015.125
发表时间: 2016-09
期刊: The Korean journal of internal medicine
影响因子: --
作者:
Son CN;Kim JM;Kim SH;Cho SK;Choi CB;Sung YK;Kim TH;Bae SC;Yoo DH;Jun JB
通讯作者: Jun JB
DOI: 10.1002/art.41404
发表时间: 2020-09-10
影响因子: 13.3
作者:
Safiri, Saeid;Kolahi, Ali Asghar;Smith, Emma
通讯作者: Smith, Emma
DOI: 10.1136/annrheumdis-2016-209632
发表时间: 2017-05
影响因子: 27.4
作者:
Nakayama A;Nakaoka H;Yamamoto K;Sakiyama M;Shaukat A;Toyoda Y;Okada Y;Kamatani Y;Nakamura T;Takada T;Inoue K;Yasujima T;Yuasa H;Shirahama Y;Nakashima H;Shimizu S;Higashino T;Kawamura Y;Ogata H;Kawaguchi M;Ohkawa Y;Danjoh I;Tokumasu A;Ooyama K;Ito T;Kondo T;Wakai K;Stiburkova B;Pavelka K;Stamp LK;Dalbeth N;Eurogout Consortium;Sakurai Y;Suzuki H;Hosoyamada M;Fujimori S;Yokoo T;Hosoya T;Inoue I;Takahashi A;Kubo M;Ooyama H;Shimizu T;Ichida K;Shinomiya N;Merriman TR;Matsuo H;Eurogout Consortium
通讯作者: Eurogout Consortium
DOI: 10.1038/nature742
发表时间: 2002-05-23
期刊: NATURE
影响因子: 64.8
作者:
Enomoto, A;Kimura, H;Endou, H
通讯作者: Endou, H