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.
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DOI:
10.1083/jcb.201005140
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发表时间:
2010-11-15
期刊:
影响因子:
--
通讯作者:
Nichols BJ
中科院分区:
文献类型:
--
作者:
Ludwig A;Otto GP;Riento K;Hams E;Fallon PG;Nichols BJ
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.
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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.
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
影响因子:
21.3
作者:
Glebov, OO;Bright, NA;Nichols, BJ
通讯作者:
Nichols, BJ
影响因子:
4
作者:
Conti, Mary Anne;Adelstein, Robert S.
通讯作者:
Adelstein, Robert S.