CK1ε/SRSF10轴调节肺癌细胞中Bcl-x的替代拼接
Qi Sun1, Yun Tang1, Lian Wang2
1Guangdong Provincial Key Laboratory of Regional Immunity and Disease, International Cancer Center, Marshall Laboratory of Biomedical Engineering, Department of Pharmacology, Shenzhen University Medical School, Shenzhen University, Shenzhen, Guangdong, China; School of Pharmacy, Shenzhen University Medical School, Shenzhen University, Shenzhen, Guangdong, China.
The Journal of biological chemistry
|July 23, 2025
概括
氨酸激酶1ε (CK1ε) 通过酸化SRSF10.0来调节Bcl-x的替代拼接. 这种CK1ε/SRSF10通路是抑制肺癌生长和化学抵抗的潜在治疗标.
科学领域:
- 分子生物学分子生物学
- 癌症研究 癌症研究
- 在RNA分离过程中.
背景情况:
- Bcl-x替代拼接失调与癌症发展和化学抵抗有关.
- 控制Bcl-x拼接的精确分子机制仍然不完全理解.
研究的目的:
- 阐明素激酶1ε (CK1ε) 在调节 Bcl-x 替代拼接中的作用.
- 研究CK1ε/SRSF10轴作为肺癌潜在的治疗策略.
主要方法:
- 利用一种特定的CK1δ/ε抑制剂 (SR3029) 来评估对Bcl-x mRNA和蛋白质水平的影响.
- 进行了CK1ε和SRSF10.0的过度表达和耗尽研究.
- 通过生物化学分析研究了蛋白质-蛋白质相互作用和酸化部位.
- 评估了CK1ε和SRSF10调制对肺癌细胞 in vitro和 in vivo行为的影响.
主要成果:
- 抑制CK1ε降低了Bcl-xL,并增加了Bcl-xS的表达.
- CK1ε过度表达降低了Bcl-xS/Bcl-xL比率,而CK1ε枯竭增加了它.
- CK1ε直接酸化SRSF10,影响其与Bcl-xLmRNA的结合.
- SRSF10的枯竭促进了亡,并抑制了肺癌细胞的活力,增殖和殖民地形成.
- 在异种移植模型中,CK1ε和SRSF10的联合抑制协同抑制了瘤生长.
结论:
- 确定了一种新的机制,其中CK1ε/SRSF10轴调节Bcl-x替代拼接.
- 这一途径代表了肺癌治疗的有前途的治疗标.
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