Gene Variation Analysis of 357 Cases with Gilbert Syndrome in Kunming
-
摘要:
目的 探讨昆明地区Gilbert综合征基因变异谱情况,为该疾病机制研究提供基础数据。 方法 应用高通量测序技术与生物信息学研究方法,对昆明地区357例Gilbert综合征患儿基因变异谱进行分析。 结果 在357例Gilbert综合征患儿中检出UGT1A1基因纯合变异82例,其中c.211G > A纯合变异占93.9%;c.1091C > T纯合变异占3.7%;c.1198A > C纯合变异占2.4%。检出 UGT1A1基因杂合变异275例,其中c.211G > A杂合变异占69.1%;c.1091C > T杂合变异占17.8%;c.1456T > G杂合变异占5.5%;c.1198A > C杂合变异占2.5%;c.1352C > T占1.1%;c.596C > G杂合变异占1.1%;c.1423C > T杂合变异占0.7%;c.1100G > A、c.1389G > C、c.610A > G、c.163C > T、c.715C > T、c.1021C > T杂合变异各占0.4%。 结论 昆明地区Gilbert综合征基因变异谱前3顺位为c.211G > A、c.1091C > T、c.1456T > G,与云南边境地区有所不同。为昆明地区非结合高胆红素血症疾病的诊断、预防及治疗提供了重要的参考依据,同时也为进一步探索非结合高胆红素血症的疾病发生机制提供了基础数据。 -
关键词:
- Gilbert综合征 /
- 基因变异 /
- 高通量测序
Abstract:Objective To explore the gene variation profile of Gilbert syndrome in Kunming, and to provide basic data for the mechanisms of Gilbert syndrome. Methods 357 children with Gilbert syndrome in Kunming were analyzed by high-throughput sequencing and bio-information analysis. Results Among 357 children with Gilbert syndrome, 82 cases were found to have homozygous variations in the UGT1A1 gene, with c.211G > A homozygous variation accounting for 93.9% of the cases; c.1091C > T homozygous variation accounting for 3.7% of the cases; and c.1198A > C homozygous variation accounting for 2.4% of the cases. 275 cases were found to have heterozygous variations in the UGT1A1 gene, with c.211G > A heterozygous variation accounting for 69.1% of the cases; c.1091C > T heterozygous variation accounting for 17.8% of the cases;c.1456T > G heterozygous variation accounting for 5.5% of the cases; c.1198A > C heterozygous variation accounting for 2.5% of the cases; c.1352C > T accounting for 1.1% of the cases; c.596C > G heterozygous variation accounting for 1.1% of the cases; c.1423C > T heterozygous variation accounting for 0.7% of the cases; and c.1100G > A, c.1389G > C, c.610A > G, c.163C > T, c.715C > T, c.1021C > T heterozygous variations each accounting for 0.4% of the cases. Conclusion The top three gene variants associated with Gilbert's syndrome in the Kunming region were c.211G > A, c.1091C > T, c.1456T > G, which were different from those found in the border areas of Yunnan. This provides important reference data for the diagnosis, prevention, and treatment of unconjugated hyperbilirubinemia in the Kunming region, and also lays the foundation for further exploration of the pathogenesis of unconjugated hyperbilirubinemia. -
Key words:
- Gilbert syndrome /
- Genetic variation /
- High-throughput sequencing
-
图 1 昆明地区357例Gilbert综合征基因变异位点测序图
A:c.211G > A纯合变异;B:c.1091C > T纯合变异;C:c.1198A > C纯合变异;D:c.211G > A杂合变异;E:c.1091C > T杂合变异;F:c.1456T > G杂合变异;G:c.1198A > C杂合变异;H:c.1352C > T杂合变异;I:c.596C > G杂合变异;J:c.1423C > T杂合变异;K:c.1100G > A杂合变异;L:c.1389G > C杂合变异;M:c.610A > G杂合变异;N:c.163C > T;O:c.715C > T杂合变异;P:c.1021C > T杂合变异。
Figure 1. 357 cases of Gilbert syndrome gene variant site sequencing diagram in Kunming
表 1 昆明地区357例Gilbert综合征基因变异表
Table 1. Gene variation of 357 cases with Gilbert Syndrome in Kunming
基因 基因型 数量(n) 发生异常的染色体:碱基位置 致病性 核苷酸变化 氨基酸变化 数量(n) 占比(%) UGT1A1
Hom 82 Chr2: 234669144 DFP c.211G > A p.Gly71Arg 77 93.9 Chr2: 234676872 LP c.1091C > T p.Pro364Leu 3 3.7 Chr2: 234676979 VUS c.1198A > C p.Asn400His 2 2.4 Het 275 Chr2: 234669144 DFP c.211G > A p.Gly71Arg 190 69.1 Chr2: 234676872 LP c.1091C > T p.Pro364Leu 49 17.8 Chr2: 234681059 PAT c.1456T > G p.Tyr486Asp 15 5.5 Chr2: 234676979 VUS c.1198A > C p.Asn400His 7 2.5 Chr2: 234680955 VUS c.1352C > T p.Pro451Leu 3 1.1 Chr2: 234669529 VUS c.596C > G p.Ser199Cys 3 1.1 Chr2: 234681026 VUS c.1423C > T p.Arg475Cys 2 0.7 Chr2: 234676881 VUS c.1100G > A p.Arg367His 1 0.4 Chr2: 234680992 *VUS c.1389G > C p.Glu463Asp 1 0.4 Chr2: 234669543 VUS c.610A > G p.Met204Val 1 0.4 Chr2: 234669096 *VUS c.163C > T p.His55Tyr 1 0.4 Chr2: 234669648 PAT c.715C > T p.Gln239Ter 1 0.4 Chr2: 234676519 PAT c.1021C > T p.Arg341Ter 1 0.4 Hom:纯合变异;Het:杂合变异;PAT :致病;LP:可能致病;VUS:意义不明;DFP: 功能性多态,*:该位点为 Clinvar与HGMD数据库未收录的变异位点。 -
[1] Jordovic J,Bojovic K,Simonovic-Babic J,et al. Significance of UGT1A1*28 genotype in patients with advanced liver injury caused by chronic hepatitis C[J]. J Med Biochem,2019,38(1):45-52. doi: 10.2478/jomb-2018-0015 [2] Ivanov A,Semenova E. Gibert's syndrome,bilirubin level and UGTIAl*28 genotype in men of north-west region of Russia[J]. J Clin Exp Hepatol,2021,11(6):691-699. doi: 10.1016/j.jceh.2021.01.006 [3] Kamal S,Abdelhakam S,Ghoraba D,et al. The frequency,clinical course,and health related quality of life in adults with Gilbert's syndrome: A longitudinal study[J]. BMC Gastroenterol,2019,19(1):22. doi: 10.1186/s12876-019-0931-2 [4] Amandito R,Putradista R,Jikesya C,et al. UGTlAl gene and neonatal hyperbilirubinemia: A preliminary study from Bengkulu,Indonesia[J]. BMC Res Notes,2018,11(1):172. doi: 10.1186/s13104-018-3284-y [5] Sun L,Li M,Zhang L,et al. Differences in UGTlAl gene mutations and pathological liver changes between Chinese patients with Gilbert syndrome and Crigler-Najjar syndrome type II[J]. Medicine (Baltimore),2017,96(45):e8620. [6] Mehrad-Majd H,Haerian M S,Akhtari J,et al. Effects of Gly7lArg mutation in UGTlAl gene on neonatal hyperbilirubinemia: A systematic review and meta-analysis[J]. J MaternFetal Neonatal Med,2019,32(10):175-1585. [7] 奎莉越,王明英,周百灵,等. 云南省婴儿期不同民族高非结合性胆红素血症UGT1A1基因多态性研究[J]. 分子诊断与治疗杂志,2020,12(3):386-390. [8] 成军,李莉. Gilbert综合征的分子遗传学基础[J]. 中华肝脏病杂志,2002,5(10):395-397. [9] 石航婷,龙隽,邓俊彪,等. UGT1A1 基因多态性分析与新生儿高胆红素血症的关系[J]. 中国新生儿科杂志,2013,28(1):21-24. [10] 陈伟,林美丽,王玉,等. UGT1A1 基因多态性与新生儿不明原因非结合性高胆红素血症相关性研究[J]. 中华新生儿科杂志,2019,34(2):81-86. [11] Chen Z,Su D,Ai L,et al. UGT1A1 sequence variants associated with risk of adult hyperbilirubinemia: A quantitative analysis[J]. Gene,2014,552(1):32-38. doi: 10.1016/j.gene.2014.09.009 [12] 冯家立,章莉莎. 259例Gilbert综合征UGT1A1基因检测分析[J]. 中西医结合肝病杂志,2022,32(12):1127-1129. [13] Richards S,Aziz N,Bale S,et al. Standards and guidelines for the interpretation of sequence variants: A joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology[J]. Genetics in Medicine:Official Journal of the American College of Medical Genetics,2015,17(5):405-424. doi: 10.1038/gim.2015.30 [14] 杨琳,丁俊杰,周文浩. UGTIA1基因多态性与新生儿黄疸遗传关联性的Meta分析[J]. 中国循证儿科杂志,2010,5(5):335-348. [15] Erickson-Ridout K K,Sun D,Lazarus P. Glucuronidation of the second-generation antipsychotic clozapine and its active metabolite N-desmethylclozapine. Potential importance of the UCTlA1 A( TA )TAA and UGTIA4I48V polymorphisms[J]. Pharmacogenet Genomics,2012,22(8):561-576. doi: 10.1097/FPC.0b013e328354026b [16] 孙顺昌,周指明,陈群蓉,等. 未结合型高胆红素血症患者UGT1A1基因的突变分析[J]. 中华医学遗传学杂志,2013,30(4):425-428. [17] Takeuchi K,Kobayashi Y,Tamaki S,et al. Genetic polymorphisms of bilirubin uridine diphosphate-glucuronosyltransferase gene in Japanese patients with Crigler-Najjar syndrome or Gilbert’s syndrome as well as in healthy Japanese subjects[J]. J Gastroenterol Hepatol,2004,19(9):1023-1028. doi: 10.1111/j.1440-1746.2004.03370.x [18] Bosma P J,Chowdhury J R,Bakker C,et al. The genetic basis of the reduced expression of bilirubin UDP-glucuronosyltransferase 1 in Gilbert’s syndrome[J]. N Engl J Med,1995,333(18):1171-1175. doi: 10.1056/NEJM199511023331802 [19] Zubaida B,Cheema H A,Hashmi M A,et al. Spectrum of UGT1A1 variants in Pakistani children affected with inherited unconjugated hyperbilirubinemias[J]. Clinical Biochemistry,2019,69:30-35. doi: 10.1016/j.clinbiochem.2019.05.012 [20] 郭薇薇,杨丽菲,王剑,等. 病因不明高胆红素血症新生儿尿昔二磷酸葡萄糖醛酸转移1A1基因变异分析[J]. 上海医学,2017,40(10):608-613. [21] Nong S H,Xie Y M,Chan K W,et al. Severe hyperbilirubinaemia in a Chinese girl with type I Crigler-Najjar syndrome: First case ever reported in Mainland China[J]. J Paediatr Child Health,2005,41(5-6):300-302. doi: 10.1111/j.1440-1754.2005.00616.x