A requirement for MAP kinase in the assembly and maintenance of the mitotic spindle.
A requirement for MAP kinase in the assembly and maintenance of the mitotic spindle.
复制标题
DOI:
10.1083/jcb.200304144
复制
发表时间:
2003-06-23
期刊:
影响因子:
--
通讯作者:
Guadagno TM
中科院分区:
文献类型:
--
作者:
Horne MM;Guadagno TM
Circumstantial evidence has suggested the possibility of microtubule-associated protein (MAP) kinase's involvement in spindle regulation. To test this directly, we asked whether MAP kinase was required for spindle assembly in Xenopus egg extracts. Either the inhibition or the depletion of endogenous p42 MAP kinase resulted in defective spindle structures resembling asters or half-spindles. Likewise, an increase in the length and polymerization of microtubules was measured in aster assays suggesting a role for MAP kinase in regulating microtubule dynamics. Consistent with this, treatment of extracts with either a specific MAP kinase kinase inhibitor or a MAP kinase phosphatase resulted in the rapid disassembly of bipolar spindles into large asters. Finally, we report that mitotic progression in the absence of MAP kinase signaling led to multiple spindle abnormalities in NIH 3T3 cells. We therefore propose that MAP kinase is a key regulator of the mitotic spindle.
登录
查看更多内容
影响因子:
9.2
作者:
Gross, SD;Schwab, MS;Maller, JL
通讯作者:
Maller, JL
影响因子:
5.3
作者:
Roberts, EC;Shapiro, PS;Ahn, NG
通讯作者:
Ahn, NG
DOI:
10.1073/pnas.92.19.8881
发表时间:
1995-09-12
影响因子:
11.1
作者:
RESZKA, AA;SEGER, R;FISCHER, EH
通讯作者:
FISCHER, EH
DOI:
10.1083/jcb.200202052
发表时间:
2002-05-13
期刊:
The Journal of cell biology
影响因子:
--
作者:
Lefebvre C;Terret ME;Djiane A;Rassinier P;Maro B;Verlhac MH
通讯作者:
Verlhac MH
影响因子:
9.2
作者:
Schwab, MS;Roberts, BT;Maller, JL
通讯作者:
Maller, JL