Loss of p53 promotes RhoA-ROCK-dependent cell migration and invasion in 3D matrices.

Loss of p53 promotes RhoA-ROCK-dependent cell migration and invasion in 3D matrices.
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p53的损失促进了3D矩阵中的Rhoa-Rock依赖性细胞迁移和侵袭。

DOI:
10.1083/jcb.200701120
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发表时间:
2007-07-02
影响因子:
7.8
通讯作者:
Roux, Pierre
Roux, Pierre
中科院分区:
生物学1区
文献类型:
--
作者:
Gadea, Gilles;de Toledo, Marion;Anguille, Christelle;Roux, Pierre

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除了控制细胞周期进程的作用外,肿瘤抑制蛋白P53还可以影响其他细胞功能,如细胞迁移。在这项研究中,我们发现,在三维基质中培养的小鼠胚胎成纤维细胞中,P53的缺失导致了从细长的纺锤形形态转变为与高动态膜泡相关的明显的球形和弹性的形态。这些圆形的、可移动的细胞表现出阿米巴样的运动,并具有相当大的侵袭性。这种形态转变需要RhoA-ROCK(Rho相关的线圈蛋白激酶)途径,并被RhoE阻止。在黑色素瘤A375P癌细胞中也观察到了类似的P53介导的转变。我们的数据表明,肿瘤中P53基因的改变足以促进肿瘤的运动和侵袭,从而促进转移。
In addition to its role in controlling cell cycle progression, the tumor suppressor protein p53 can also affect other cellular functions such as cell migration. In this study, we show that p53 deficiency in mouse embryonic fibroblasts cultured in three-dimensional matrices induces a switch from an elongated spindle morphology to a markedly spherical and flexible one associated with highly dynamic membrane blebs. These rounded, motile cells exhibit amoeboid-like movement and have considerably increased invasive properties. The morphological transition requires the RhoA–ROCK (Rho-associated coil-containing protein kinase) pathway and is prevented by RhoE. A similar p53-mediated transition is observed in melanoma A375P cancer cells. Our data suggest that genetic alterations of p53 in tumors are sufficient to promote motility and invasion, thereby contributing to metastasis.
DOI: 10.1126/science.1064829
发表时间: 2001-11-23
期刊: SCIENCE
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