下游的NF-κB miR-1262通过向FGFR1来扰乱结肠癌细胞的恶性行为
Weilin Zhang1,2,3, Zhongcheng Huang3, Zhigang Xiao3
1The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510080, China.
Acta biochimica et biophysica Sinica
|October 23, 2023
概括
微RNA-1262 (miR-1262) 通过向纤维细胞生长因子受体1 (FGFR1) 在结肠癌中起到瘤抑制作用. 核因子kappa B (NF-κB) 抑制了miR-1262,影响了癌症的进展.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
背景情况:
- 结肠直肠癌是癌症相关死亡的主要原因,尽管治疗进展.
- 核因子kappa B (NF-κB) 信号驱动炎症性肠道疾病中的恶性转变.
- 微RNAs (miRNAs) 与结肠癌的发展和进展有关.
研究的目的:
- 为了研究放松调节的miRNAs在结肠癌中的作用.
- 在体外和体内确定miRNAs的特定功能.
- 分析miRNA下游目标及其调节机制.
主要方法:
- 在结肠癌组织和细胞系中对放松调节的miRNA进行分析.
- 使用癌细胞进行体外功能检测.
- 在体内研究使用皮下异种移植和肺转移小鼠模型.
- 验证miRNA-目标结合和调节.
- 对NF-κB与miR-1262促进体结合的研究.
主要成果:
- 发现miR-1262在结肠癌中被降低了.
- 过度表达miR-1262抑制了结肠癌细胞的增殖,入侵,迁移,瘤的发展和转移.
- miR-1262直接向并抑制纤维细胞生长因子受体1 (FGFR1).
- 过度表达FGFR1促进了致癌功能,部分扭转了miR-1262的影响.
- NF-κB与miR-1262促进体结合,抑制其转录.
- 通过CAPE抑制NF-κB显示出抗瘤效应,由miR-1262抑制部分逆转.
结论:
- miR-1262通过准FGFR1.1,在结肠癌中起到抗瘤miRNA的作用.
- NF-κB/miR-1262/FGFR1轴是结肠癌细胞表型的关键调节者.
- 这个轴影响癌细胞的增殖,入侵和迁移,提供潜在的治疗点.
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