考古物和细菌中的CRISPR序列与真核微RNA的比较
Reyhane Ramezani1, Mandana Behbahani2, Hassan Mohabatkar2
1Faculty of Nanochemical Engineering, Shiraz University, Shiraz, Iran.
Avicenna journal of medical biotechnology
|February 23, 2026
概括
来自古生物和细菌的重复集群定期间隔的短Palindromic重复 (CRISPR) 序列与人类的微RNA (miRNA) 有相似之处. 这些发现表明, prokaryotic CRISPR 序列与参与人类疾病的基因之间存在潜在联系.
科学领域:
- 基因组学就是基因组学.
- 微生物学 微生物学
- 生物信息学是一种生物信息学.
背景情况:
- 探索来自古生物 (Acidianus sp., A. ambivalens) 和细菌 (Yersinia ruckeri) 的重复的集群定期间隔的短时间Palindromic重复 (CRISPR) 序列.
- 将 prokaryotic CRISPR 序列与人类 microRNA (miRNA) 序列进行比较,以确定遗传相似性和潜在的疾病关联.
研究的目的:
- 研究 prokaryotic CRISPR 序列和人类 miRNAs 之间的潜在遗传相似性.
- 探索这些相似之处与人类疾病关联之间的可能联系.
主要方法:
- 从CRISPR/Cas++数据库中检索CRISPR序列,以及从miRBase.中检索人类miRNA序列.
- 使用BLASTn (E值值为1e-5) 进行了序列对齐,以确定显著的相似性.
- 使用HGNC和GeneCards数据库识别与匹配的人类miRNA相关的基因;与与疾病相关的miRNA进行比较.
主要成果:
- 鉴定了Y. ruckeri的CRISPR序列和与肺癌和肌肉发育不良相关的基因 (例如FOXO1,PTEN) 相关的miRNAs之间的相似性.
- 在A. ambivalens中发现了与与可能与围性腺癌和先兆子相关的位置相对应的miRNA的相似性 (例如,CHM13,GRCh38).
- 对Acidianus sp.的观察到的匹配情况 含有涉及银病关节炎,阿尔茨海默病,肝细胞癌和冠状动脉疾病 (例如,Irak2,NOS2) 的miRNAs.
结论:
- 来自 prokaryotes 的 CRISPR 序列与人类 miRNA 具有显著的相似之处.
- 表明 prokaryotic CRISPR 序列和参与人类重大疾病的基因之间可能存在间接联系.
- 强调需要进一步研究共享序列动机及其在宿主-病原体相互作用或进化生物学中的作用.
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