Huang Enfu,Chen Jiao,Cao Xu,et al.Preliminary study of MicroRNA differential expression in hypospadias[J].Journal of Clinical Pediatric Surgery,2019,18(04):335-340.[doi:10.3969/j.issn.1671-6353.2019.04.018]
尿道下裂相关miRNA差异表达分析的初步探讨
- Title:
- Preliminary study of MicroRNA differential expression in hypospadias
- 关键词:
- 尿道下裂/病因学; 微RNAs; 人绒毛膜促性腺激素; 反转录酶-聚合酶连锁反应
- Keywords:
- Hypospadias/ET; MicoRNAs; HCG; RT-PCR
- 分类号:
- R726.9;R393
- 摘要:
- 目的 通过筛选尿道下裂、术前经HCG治疗的尿道下裂以及正常包皮组织中miRNA差异表达，探究其与尿道下裂的发生以及术前HCG治疗影响预后的可能途径，为探究尿道下裂病因提供新思路。方法 选取9例尿道下裂（其中3例术前进行HCG治疗）以及3例包茎患儿（对照组）为研究对象，分别取包皮组织抽提总RNA，利用芯片技术筛选各组差异性表达的miRNAs，并用RT-PCR技术对筛选结果进行验证。结果 芯片筛选结果：与对照组比较，尿道下裂患儿的包皮组织里差异性表达的miRNAs中上调的19个，下调的15个。与术前行HCG治疗组的患儿相比，术前未行HCG治疗的尿道下裂患儿包皮组织里差异性表达的miRNA中上调的19个，下调的25个；RT-PCR验证结果：在差异性表达的miRNA中选择10个miRNA进行验证，其中5个miRNA与芯片结果相符，分别是let-7b-3p、miR-145-5p、miR-376a-3p、miR-377-3p和miR-1-3p。其中let-7b-3p、miR-145-5p、miR-376a-3p、miR-377-3p在尿道下裂组中低表达，在对照组和术前HCG治疗的尿道下裂组中高表达；miR-1-3p在术前HCG治疗的尿道下裂患儿中较未用药组中高表达。结论 首次建立尿道下裂患儿miRNAs的基因表达谱，并筛选出在术前行HCG治疗尿道下裂、术前未行HCG治疗尿道下裂与包茎之间存在差异表达的miRNAs。根据筛选出的差异性表达的miRNAs，推测其与尿道下裂的关系，为今后疾病的预防以及提高治疗效果提供新的线索。
- Abstract:
- Objective To detect the differential expression of miRNAs in foreskin tissue related to hypospadiac deformation in etiology,explore the possible role for preoperative human chorionic gonadotropin (HCG) treatment for facilitating surgical operation and reduce the complications.Methods Foreskin tissue was collected for total RNA extraction from 9 cases of hypospadiac children including 3 cases with preoperative HCG treatment and 3 children with phimosis as control.Chip was used for screening the differential expression of miRNA and the results were verified by real-time polymerase chain reaction (RT-PCR).Results Results of miRNA chips:Compared to children with phimosis,the number of up-regulated miRNA was 19 while down-regulated miRNA was 15 in foreskin tissue of hypospadiacs.As compared to hypospadiacs with preoperative HCG treatment,the number of up-regulated miRNA was 19 while down-regulated miRNA was 25 in foreskin tissue of those without preoperative treatment.Results of RT-PCR:Among 10 differentially expressed miRNAs,half of them were verified,i.e.let-7b-3p,miR-145-5p,miR-376a-3p,miR-377-3p and miR-1-3p.And let-7b-3p,miR-145-5p,miR-376a-3p,miR-377-3p were down-regulated in hypospadias group and up-regulated in phimosis and hypospadias with preoperative HCG treatment.Yet miR-1-3p was up-regulated in hypospadias with preoperative HCG treatment as compared to hypospadias group.Conclusion This study has established the miRNA expression profiles of hypospadias for the first time.Differentially expressed miRNAs are screened among children with hypospadias,those with phimosis and those with hypospadias with preoperative HCG treatment.Future studies of differentially expressed miRNAs may provide new etiological clues for hypospadias.
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备注/Memo
收稿日期:2017-06-13。
基金项目:江苏省临床医学科技专项（编号：BL2012051）；苏州市民生科技项目（编号：SS201754）
通讯作者:周云,Email:cloudyzy@189.cn