在结肠直肠癌球状体和患者中的瘤抑制性circRNAs
Yan-Jie Su1,2, Guang-Yuh Chiou3, Chih-Ling Yeh4
1Department of Medical Education, Taipei Veterans General Hospital, Taipei, Taiwan, ROC.
Journal of the Chinese Medical Association : JCMA
|March 3, 2026
概括
这项研究发现,两个循环RNAs,hsa_circ_0039776和hsa_circ_0067353,在结直肠癌干细胞中下调,并与更好的患者存活率有关. 这些circRNAs可以作为结直肠癌的诊断生物标记物和治疗点.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 基因组学就是基因组学.
背景情况:
- 结肠直肠癌干细胞在治疗和生存方面存在重大挑战.
- 循环RNAs (circRNAs) 参与瘤形成,可能提供诊断和治疗潜力.
- 对于结直肠癌中的circRNAs存在有限的综合验证.
研究的目的:
- 在结肠直肠癌干细胞样细胞群中研究下调circRNAs的分子作用.
- 为了确定与治疗耐药性和疾病进展相关的特定circRNAs.
- 探索circRNAs作为结直肠癌生物标志物的潜力.
主要方法:
- 利用HCT-15和WiDr细胞系的3D球形培养物来建模结肠直肠癌干细胞.
- 进行了大量RNA测序,以描述circRNA和mRNA的表达.
- 使用生物信息分析 (CircInteractome,CircBank,miRDB,TargetScan) 来阐明circRNA-miRNA-mRNA的相互作用.
主要成果:
- 在球状模型和转移性结直肠癌组织中,确定了15个循环RNAs,它们的下调稳定.
- 鉴定出 hsa_circ_0039776 和 hsa_circ_0067353 是关键的抑制瘤的候选药物.
- 这些circRNAs调节致癌的miRNAs (hsa-miR-614,hsa-miR-645,hsa-miR-4689) 和瘤抑制基因 (CCL5,INSC,SLC9A1,SLC34A1),与改善生存相关.
结论:
- hsa_circ_0039776和hsa_circ_0067353是新的抑制瘤的circRNA,在结直肠癌球状和转移中表达减少.
- 建立了一个circRNA-miRNA-mRNA调节网络,影响癌症干和患者存活率.
- 这些发现凸显了特定circRNAs作为结直肠癌诊断生物标志物和治疗点的潜力.
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