长非编码RNALINCMD1在瘤发病过程中的功能性作用
Tsai-Der Chuang1, Nhu Ton1, Shawn Rysling1
1The Lundquist Institute for Biomedical Innovation, Torrance, CA 90502, USA.
International journal of molecular sciences
|November 9, 2024
概括
长跨基因非编码RNA (LINCMD1) 充当微RNA (miRNA) 的海绵,可能调节瘤的发展. 瘤组织中LINCMD1的减少和miR-135b的升高表明它在异常的Wnt/β-Catenin信号传递中发挥了作用.
科学领域:
- 生殖生物学 生殖生物学
- 分子内分泌学分子内分泌学
- 蜂信号传输是如何进行的
背景情况:
- 已知长跨基因非编码RNA (LINCMD1) 通过miRNA海绵活动来调节肌肉分化.
- 对于LINCMD1在子宫乳腺瘤的发展中的作用仍然未被探索.
- 异常的Wnt/β-Catenin信号传递与瘤病变发生有关.
研究的目的:
- 调查LINCMD1在人类子宫瘤发育中的作用.
- 为了确定LINCMD1与leiomyoma中的miR-135b之间的相互作用.
- 探索LINCMD1对Wnt/β-Catenin信号组件的影响.
主要方法:
- 对配对的子宫肌和乳腺瘤组织的分析 (n=34).
- 定量实时PCR (qRT-PCR) 用于基因表达分析.
- 路西法酶测定以确认miRNA-目标相互作用.
- 在3D光滑肌肉细胞球体中,siRNA介导的LINCMD1敲击.
主要成果:
- 与匹配的肌肉细胞相比,瘤组织表现出明显较低的LINCMD1mRNA和较高的miR-135b水平.
- 证实LINCMD1可以作为miR-135b的海绵.
- 通过LINCMD1的淘汰,增加了miR-135b,降低了APC,促进了β-catenin的积累,并增加了COL1A1的表达.
结论:
- 在线肌瘤中,LINCMD1的下调,这表明它有瘤抑制作用.
- LINCMD1作为一个miR-135b海绵,调节Wnt/β-Catenin信号传输.
- LINCMD1 代表了治疗瘤治疗的潜在治疗标.
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