新的长非编码RNA生物标记物和ceRNA网络在结直肠癌中的miR-616-3p:基于生物信息学的研究
Mohammad Abdolvand1,2,3, Zahra Mohammadi Chermahini3, Sahar Bahaloo4
1Cellular, Molecular and Genetics Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
概括
这项研究确定了新型长非编码RNAs (lncRNAs) 和信使RNAs (mRNAs) 作为结直肠癌 (CRC) 的潜在生物标志物. 这些发现揭示了新的调控网络,涉及用于CRC诊断和治疗的microRNA (miRNA).
科学领域:
- 分子生物学分子生物学
- 基因组学就是基因组学.
- 癌症研究 癌症研究
背景情况:
- 长非编码RNAs (lncRNAs) 作为竞争的内源RNAs (ceRNAs) 起作用,隔离microRNAs (miRNAs) 并影响基因表达.
- 通过lncRNA介导的ceRNA网络的失调与各种癌症的发展有关,包括结直肠癌 (CRC).
研究的目的:
- 确定结直肠癌 (CRC) 中的一种新型调节轴,涉及微RNA-616-3p (miR-616-3p).
- 发现基于lncRNA和mRNA表达的CRC潜在的诊断和预后生物标志物.
- 阐明CRC中尚未探索的ceRNA网络.
主要方法:
- 利用基因表达综合数据库识别CRC中的差异表达lncRNAs (DELs) 和mRNAs.
- 使用生物信息学工具 (RegRNA,TargetScan,ciBioPortal,Ensemble) 来预测RNA相互作用并构建ceRNA网络.
- 使用定量实时聚合酶链反应 (qRT-PCR) 验证了关键RNA分子的表达水平.
主要成果:
- 确定Linc01282,lnc-MYADM-1:1,和指蛋白347 (ZNF347) 在CRC中显著过度表达.
- 在CRC中发现盐诱导性激酶1 (SIK1) 和miR-616-3p的下调.
- 证实了CRC组织中特定的lncRNAs,mRNAs和miRNAs的失调.
结论:
- 发现了新的,未报告的 lncRNAs,有可能作为CRC的预后生物标志物.
- 确定了潜在的mRNA作为潜在的治疗点和CRC的预测生物标志物.
- 发现了以前未经探索的ceRNA网络,需要进一步研究CRC病变的发生.
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