LDLR和PCSK9 3'UTR变异及其对家族高胆固醇血症中微RNA分子相互作用的假定影响:一种计算方法
Renata Caroline Costa de Freitas1,2, Raul Hernandes Bortolin1,3, Jessica Bassani Borges4
1Department of Clinical and Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, Av. Prof. Lineu Prestes, 580. São Paulo, Sao Paulo, 05508-000, Brazil.
Molecular biology reports
|September 30, 2023
概括
与FH相关基因的3'未翻译区域的变异,特别是LDLR和PCSK9,破坏了miRNA相互作用,可能与家族性高胆固醇血清症的分子诊断有关.
科学领域:
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
- 生物信息学是一种生物信息学.
背景情况:
- 家族性高胆固醇血症 (FH) 是一种影响脂质代谢的遗传疾病.
- 在LDLR,APOB,PCSK9和LDLRAP1基因中的致病变体导致FH.
- 在临床诊断的FH患者中,很大一部分缺乏已知的FH基因中确定的因果变异.
研究的目的:
- 研究3种UTR变异在FH相关基因中的作用.
- 评估这些变异对微RNA (miRNA) 相互作用的影响.
- 探索3种UTR变体与FH分子诊断之间的关联.
主要方法:
- 在83名FH患者中测序FH相关基因.
- 使用in silico工具来预测3个UTR变异对miRNA:mRNA相互作用的影响.
- 分析已识别的变异与FH分子诊断的关联.
主要成果:
- 在44.6%的FH患者中发现了致病变体.
- 在LDLR (rs5742911,rs7258146,rs7254521) 和PCSK9 (rs17111557) 中特定的3种UTR变异显示出与FH分子诊断有显著的关联.
- 这些变异被发现会破坏miRNA结合,其中一些与特定miRNAs具有更稳定的相互作用.
结论:
- 在LDLR和PCSK9中的3个UTR变异可以扰乱miRNA:mRNA相互作用.
- 这些干扰有可能影响基因表达.
- 已识别的3种UTR变异可能与家族高胆固醇血症的分子诊断有关.
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