The motor activity of myosin-X promotes actin fiber convergence at the cell periphery to initiate filopodia formation.
The motor activity of myosin-X promotes actin fiber convergence at the cell periphery to initiate filopodia formation.
复制标题
DOI:
10.1083/jcb.200703178
复制
发表时间:
2007-10-22
影响因子:
7.8
通讯作者:
Ikebe, Mitsuo
中科院分区:
文献类型:
--
作者:
Tokuo, Hiroshi;Mabuchi, Katsuhide;Ikebe, Mitsuo
Filopodia are actin-rich fingerlike protrusions found at the leading edge of migrating cells and are believed to play a role in directional sensing. Previous studies have shown that myosin-X (myoX) promotes filopodia formation and that this is mediated through its ability to deliver specific cargoes to the cell periphery (Tokuo, H., and M. Ikebe. 2004. Biochem Biophys. Commun. 319:214–220; Zhang, H., J.S. Berg, Z. Li, Y. Wang, P. Lang, A.D. Sousa, A. Bhaskar, R.E. Cheney, and S. Stromblad. 2004. Nat. Cell Biol. 6:523–531; Bohil, A.B., B.W. Robertson, and R.E. Cheney. 2006. Proc. Natl. Acad. Sci. USA. 103:12411–12416; Zhu, X.J., C.Z. Wang, P.G. Dai, Y. Xie, N.N. Song, Y. Liu, Q.S. Du, L. Mei, Y.Q. Ding, and W.C. Xiong. 2007. Nat. Cell Biol. 9:184–192). In this study, we show that the motor function of myoX and not the cargo function is critical for initiating filopodia formation. Using a dimer-inducing technique, we find that myoX lacking its cargo-binding tail moves laterally at the leading edge of lamellipodia and induces filopodia in living cells. We conclude that the motor function of the two-headed form of myoX is critical for actin reorganization at the leading edge, leading to filopodia formation.
登录
查看更多内容
影响因子:
5.7
作者:
Bentley, David;O'Connor, Timothy P.
通讯作者:
O'Connor, Timothy P.
影响因子:
4.8
作者:
Homma, K;Ikebe, M
通讯作者:
Ikebe, M
影响因子:
46.9
作者:
Mallet, VO;Mitchell, C;Gilgenkrantz, H
通讯作者:
Gilgenkrantz, H
DOI:
10.1083/jcb.200210174
发表时间:
2003-02-03
期刊:
The Journal of cell biology
影响因子:
--
作者:
Svitkina TM;Bulanova EA;Chaga OY;Vignjevic DM;Kojima S;Vasiliev JM;Borisy GG
通讯作者:
Borisy GG
影响因子:
21.3
作者:
Berg, JS;Cheney, RE
通讯作者:
Cheney, RE