Roles of p-ERM and Rho-ROCK signaling in lymphocyte polarity and uropod formation.
Roles of p-ERM and Rho-ROCK signaling in lymphocyte polarity and uropod formation.
复制标题
Perm和Rho-Rock信号传导在淋巴细胞极性和uropod形成中的作用。
DOI:
10.1083/jcb.200403091
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发表时间:
2004-10-25
影响因子:
7.8
通讯作者:
Shimizu, A
中科院分区:
文献类型:
--
作者:
Lee, JH;Katakai, T;Hara, T;Gonda, H;Sugai, M;Shimizu, A
Front–rear asymmetry in motile cells is crucial for efficient directional movement. The uropod in migrating lymphocytes is a posterior protrusion in which several proteins, including CD44 and ezrin/radixin/moesin (ERM), are concentrated. In EL4.G8 T-lymphoma cells, Thr567 phosphorylation in the COOH-terminal domain of ezrin regulates the selective localization of ezrin in the uropod. Overexpression of the phosphorylation-mimetic T567D ezrin enhances uropod size and cell migration. T567D ezrin also induces construction of the CD44-associated polar cap, which covers the posterior cytoplasm in staurosporine-treated, uropod-disrupted EL4.G8 cells or in naturally unpolarized X63.653 myeloma cells in an actin cytoskeleton–dependent manner. Rho-associated coiled coil–containing protein kinase (ROCK) inhibitor Y-27632 disrupts the uropod but not the polar cap, indicating that Rho–ROCK signaling is required for posterior protrusion but not for ERM phosphorylation. Phosphorylated ezrin associates with Dbl through its NH2-terminal domain and causes Rho activation. Moreover, constitutively active Q63L RhoA is selectively localized in the rear part of the cells. Thus, phosphorylated ERM has a potential function in establishing plasma membrane “posteriority” in the induction of the uropod in T lymphocytes.
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DOI:
10.1083/jcb.113.6.1267
发表时间:
1991-06
期刊:
The Journal of cell biology
影响因子:
--
作者:
Pagano RE;Martin OC;Kang HC;Haugland RP
通讯作者:
Haugland RP
影响因子:
4.8
作者:
Subauste, MC;Von Herrath, M;Hahn, KM
通讯作者:
Hahn, KM
DOI:
10.1073/pnas.93.11.5466
发表时间:
1996-05-28
影响因子:
11.1
作者:
Debant, A;SerraPages, C;Streuli, M
通讯作者:
Streuli, M
DOI:
10.1083/jcb.138.4.927
发表时间:
1997-08-25
期刊:
The Journal of cell biology
影响因子:
--
作者:
Mackay DJ;Esch F;Furthmayr H;Hall A
通讯作者:
Hall A
影响因子:
4
作者:
Smith, A;Bracke, M;Hogg, N
通讯作者:
Hogg, N