在复杂的环境中,N-cadherin动态调节儿科质瘤细胞迁移
Dayoung Kim1, James M Olson2,3, Jonathan A Cooper1
1Basic Sciences Division, Fred Hutchinson Cancer Center, Seattle, WA, USA.
The Journal of cell biology
|March 13, 2024
概括
儿童质瘤细胞使用N-cadherin根据其微环境来适应迁移. 这个细胞粘附分子是细胞的粘附分子.
科学领域:
- 神经瘤学神经瘤学
- 细胞生物学 细胞生物学
- 癌症研究 癌症研究
背景情况:
- 儿科高度质瘤是侵略性的,难以治疗的.
- 在复杂的大脑微环境中质瘤细胞入侵机制尚不清楚.
- N-cadherin表达与儿科质瘤的生存率较差相关.
研究的目的:
- 研究N-cadherin如何影响不同微环境中的儿科质瘤细胞迁移.
- 探索N-cadherin动态在领导和追随细胞行为中的作用.
- 了解N-cadherin,YAP1/TAZ信号传递和细胞可塑性之间的相互作用.
主要方法:
- 使用培养神经元,星细胞和细胞外基质的体外模型.
- 分析了N-cadherin在迁移的质瘤细胞中的局部化和相互作用.
- 评估了领导者与追随者细胞中的YAP1/TAZ信号活动.
- 在细胞重新定位过程中研究了N-cadherin和信号的动态变化.
主要成果:
- N-cadherin有差异地调节迁移:刺激它在神经元/星细胞上,但抑制侵入细胞外基质.
- N-cadherin局部化到不同的细胞接触:在领导者中具有丝状,在追随者中具有上皮状.
- 领导细胞表现出更高的表面/循环N-cadherin,增加了YAP1/TAZ信号和增殖.
- YAP1/TAZ信号与细胞位置动态调整,改变N-cadherin的动态.
结论:
- 儿科质瘤细胞通过调节N-cadherin动态和细胞-细胞接触来适应迁移策略.
- 通过N-cadherin介导的细胞粘附在质瘤细胞适应各种微环境线索方面发挥着关键作用.
- 针对N-cadherin调节可能为儿科质瘤提供新的治疗途径.
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