Flotillin microdomains interact with the cortical cytoskeleton to control uropod formation and neutrophil recruitment.

Flotillin microdomains interact with the cortical cytoskeleton to control uropod formation and neutrophil recruitment.
复制标题

DOI:
10.1083/jcb.201005140
复制
发表时间:
2010-11-15
期刊:
The Journal of cell biology
影响因子:
--
通讯作者:
Nichols BJ
Nichols BJ
中科院分区:
其他
文献类型:
--
作者:
Ludwig A;Otto GP;Riento K;Hams E;Fallon PG;Nichols BJ

文献摘要

参考文献

被引文献

相似文献

flotillin 微结构域和皮质细胞骨架之间的关联控制着肌球蛋白 IIa 的激活和中性粒细胞的趋化性。我们研究了由蛋白 flotillin 1 和 flotillin 2 定义的质膜微域在尾足形成和中性粒细胞趋化中的功能。暴露于 N-甲酰基-Met-Leu-Phe (fMLP) 等化学引诱剂后,Flotillin 会集中在中性粒细胞的尾足中。在这里,我们发现缺乏flotillin 1的小鼠不具有flotillin微结构域,并且这些小鼠体内向fMLP的中性粒细胞募集减少。离体时,在没有弗洛替林微区的情况下,中性粒细胞通过电阻基质的迁移会减少,但感测化学引诱剂功能所需的机制正常。 Flotillin 微结构域与肌球蛋白 IIa 和血影蛋白特异性相关。在 flotillin 1 敲除的中性粒细胞中,尾足形成和肌球蛋白 IIa 活性均受到损害。我们得出的结论是,flotillin 微结构域和皮质细胞骨架之间的关联在中性粒细胞迁移、尾足形成和肌球蛋白 IIa 的调节过程中具有重要功能。
The association between flotillin microdomains and the cortical cytoskeleton controls myosin IIa activation and neutrophil chemotaxis. We studied the function of plasma membrane microdomains defined by the proteins flotillin 1 and flotillin 2 in uropod formation and neutrophil chemotaxis. Flotillins become concentrated in the uropod of neutrophils after exposure to chemoattractants such as N-formyl-Met-Leu-Phe (fMLP). Here, we show that mice lacking flotillin 1 do not have flotillin microdomains, and that recruitment of neutrophils toward fMLP in vivo is reduced in these mice. Ex vivo, migration of neutrophils through a resistive matrix is reduced in the absence of flotillin microdomains, but the machinery required for sensing chemoattractant functions normally. Flotillin microdomains specifically associate with myosin IIa, and spectrins. Both uropod formation and myosin IIa activity are compromised in flotillin 1 knockout neutrophils. We conclude that the association between flotillin microdomains and cortical cytoskeleton has important functions during neutrophil migration, in uropod formation, and in the regulation of myosin IIa.
DOI: 10.1016/j.febslet.2007.08.074
发表时间: 2007-10-02
期刊: FEBS LETTERS
影响因子: 3.5
作者:
Langhorst, Matthias F.;Solis, Gonzalo P.;Stuermer, Claudia A. O.
通讯作者: Stuermer, Claudia A. O.
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
发表时间: 2004-10-25
影响因子: 7.8
作者:
Lee, JH;Katakai, T;Hara, T;Gonda, H;Sugai, M;Shimizu, A
通讯作者: Shimizu, A
DOI: 10.1083/jcb.200810041
发表时间: 2009-02-23
期刊: The Journal of cell biology
影响因子: --
作者:
Doyle AD;Wang FW;Matsumoto K;Yamada KM
通讯作者: Yamada KM
DOI: 10.1038/ncb1342
发表时间: 2006-01-01
影响因子: 21.3
作者:
Glebov, OO;Bright, NA;Nichols, BJ
通讯作者: Nichols, BJ
DOI: 10.1242/jcs.007112
发表时间: 2008-01-01
影响因子: 4
作者:
Conti, Mary Anne;Adelstein, Robert S.
通讯作者: Adelstein, Robert S.