E-cadherin determines Caveolin-1 tumor suppression or metastasis enhancing function in melanoma cells.

E-cadherin determines Caveolin-1 tumor suppression or metastasis enhancing function in melanoma cells.
复制标题

E-钙粘着蛋白确定小窝蛋白-1肿瘤抑制或增强黑色素瘤细胞中的功能。

DOI:
10.1111/pcmr.12085
复制
发表时间:
2013-07
影响因子:
4.3
通讯作者:
Quest AF
Quest AF
中科院分区:
医学3区
文献类型:
--
作者:
Lobos-González L;Aguilar L;Diaz J;Diaz N;Urra H;Torres VA;Silva V;Fitzpatrick C;Lladser A;Hoek KS;Leyton L;Quest AF

文献摘要

参考文献

被引文献

相似文献

CAV1在癌症中的作用备受争议。CAV1抑制有利于肿瘤发展的基因,但也促进转移细胞的局灶黏附转换和迁移。这些截然不同的观察结果与体内CAV1功能的关系尚不清楚。我们之前的研究提示E-cadherin在cav1依赖性肿瘤抑制中起作用。本研究使用内源性CAV1和E-cadherin水平较低的小鼠黑色素瘤B16F10细胞,揭示CAV1如何影响肿瘤生长和转移,并评估E-cadherin在C57BL/6小鼠体内共表达如何调节CAV1功能。我们发现,在B16F10(cav-1)细胞中,过表达CAV1可减少皮下肿瘤的形成,但相对于对照细胞,可促进转移。此外,E-cadherin在B16F10(E-cad)细胞中的表达减少了皮下肿瘤的形成和肺转移。重要的是,在B16F10(CAV1 /E-cad)细胞中,CAV1和E-cadherin的共表达可消除肿瘤形成、肺转移、增加Rac-1活性和细胞迁移。最后,与CAV1参与将人类黑素瘤转变为更恶性表型的观点一致,在这些细胞中,CAV1表达水平的升高与迁移和Rac-1激活的增强相关。
The role of caveolin-1 (CAV1) in cancer is highly controversial. CAV1 suppresses genes that favor tumor development, yet also promotes focal adhesion turnover and migration of metastatic cells. How these contrasting observations relate to CAV1 function in vivo is unclear. Our previous studies implicate E-cadherin in CAV1-dependent tumor suppression. Here we use murine melanoma B16F10 cells, with low levels of endogenous CAV1 and E-cadherin, to unravel how CAV1 affects tumor growth and metastasis, and to assess how co-expression of E-cadherin modulates CAV1 function in vivo in C57BL/6 mice. We find that overexpression of CAV1 in B16F10(cav-1) cells reduces subcutaneous tumor formation, but enhances metastasis relative to control cells. Furthermore, E-cadherin expression in B16F10(E-cad) cells reduces subcutaneous tumor formation, and lung metastasis when intravenously injected. Importantly, co-expression of CAV1 and E-cadherin in B16F10(cav1/E-cad) cells abolishes tumor formation, lung metastasis, increased Rac-1 activity and cell migration observed with B16F10(cav-1) cells. Finally, consistent with the notion that CAV1 participates in switching human melanomas to a more malignant phenotype, elevated levels of CAV1 expression correlated with enhanced migration and Rac-1 activation in these cells.
DOI: 10.1038/nature09075
发表时间: 2010-05-27
期刊: Nature
影响因子: 64.8
作者:
通讯作者: --
DOI: 10.1016/s0002-9440(10)63010-6
发表时间: 2001-11-01
影响因子: 6
作者:
Kai, WC;Diatchenko, L;Sers, C
通讯作者: Sers, C
Naevi中的细胞衰老和黑色素瘤中的永生化:P16的作用?
DOI: 10.1038/sj.bjc.6603283
发表时间: 2006-08-21
影响因子: 8.8
作者:
Gray-Schopfer, V C;Cheong, S C;Chong, H;Chow, J;Moss, T;Abdel-Malek, Z A;Marais, R;Wynford-Thomas, D;Bennett, D C
通讯作者: Bennett, D C
DOI: 10.1172/jci42118
发表时间: 2010-08-01
影响因子: 15.9
作者:
Casazza, Andrea;Finisguerra, Veronica;Tamagnone, Luca
通讯作者: Tamagnone, Luca
DOI: 10.1158/1055-9965.epi-07-2729
发表时间: 2008-04-01
影响因子: 3.8
作者:
Kreizenbeck, Gretchen M.;Berger, Aaron J.;Rothberg, Bonnie E. Gould
通讯作者: Rothberg, Bonnie E. Gould