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胰腺循环瘤细胞的RNA测序涉及到转移中的WNT信号
Min Yu1, David T Ting, Shannon L Stott
1Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, Massachusetts 02114, USA.
Nature
|July 6, 2012
概括
研究人员确定Wnt2是胰腺癌中循环瘤细胞 (CTC) 的关键基因. Wnt2促进癌细胞存活和转移,这表明它是预防癌症扩散的潜在治疗标.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症转移研究 癌症转移研究
背景情况:
- 循环瘤细胞 (CTC) 很少见,但对于启动远程转移至关重要.
- 识别CTC中的细胞通路可以揭示癌症传播的机制.
研究的目的:
- 从小鼠胰腺癌模型中识别富含CTC的候选基因和途径.
- 研究已识别的基因在胰腺癌进展和转移中的作用.
主要方法:
- 从内生小鼠模型中调整了一种微流体装置,以有效地捕获CTC.
- 在捕获的CTC上进行单分子RNA测序.
- 评估了WNT2表达对胰腺癌细胞行为和体内转移的功能影响.
主要成果:
- 确定了Wnt2作为一个在CTC中显著丰富的候选基因.
- 在胰腺癌细胞中WNT2表达抑制了阿诺基斯,并增强了 anchorage-independent的生长.
- 在体内,WNT2促进了转移性倾向,与纤维素蛋白上调相关.
- 在一些病例的子集中,WNT信号在人类胰腺CTC中得到了丰富.
结论:
- 对CTC的分子分析可以确定预防癌症转移的潜在治疗点.
- WNT2是抑制胰腺癌扩散的潜在治疗标.
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