Subcellular knockout of importin β1 perturbs axonal retrograde signaling.
Subcellular knockout of importin β1 perturbs axonal retrograde signaling.
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DOI:
10.1016/j.neuron.2012.05.033
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发表时间:
2012-07-26
期刊:
影响因子:
16.2
通讯作者:
Fainzilber M
中科院分区:
文献类型:
--
作者:
Perry RB;Doron-Mandel E;Iavnilovitch E;Rishal I;Dagan SY;Tsoory M;Coppola G;McDonald MK;Gomes C;Geschwind DH;Twiss JL;Yaron A;Fainzilber M
Subcellular localization of mRNA enables compartmentalized regulation within large cells. Neurons are the longest known cells, however so far evidence is lacking for an essential role of endogenous mRNA localization in axons. Localized upregulation of importin β1 in lesioned axons coordinates a retrograde injury signaling complex transported to the neuronal cell body. Here we show that a long 3′ untranslated region (3′UTR) directs axonal localization of importin β1. Conditional targeting of this 3′UTR region in mice causes subcellular loss of importin β1 mRNA and protein in axons, without affecting cell body levels or nuclear functions in sensory neurons. Strikingly, axonal knockout of importin β1 attenuates cell body transcriptional responses to nerve injury and delays functional recovery in vivo. Thus, localized translation of importin β1 mRNA enables separation of cytoplasmic and nuclear transport functions of importins, and is required for efficient retrograde signaling in injured axons.
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影响因子:
3.7
作者:
Behnisch T;Yuanxiang P;Bethge P;Parvez S;Chen Y;Yu J;Karpova A;Frey JU;Mikhaylova M;Kreutz MR
通讯作者:
Kreutz MR
影响因子:
9.8
作者:
Dieterich, Daniela C.;Karpova, Anna;Mikhaylova, Marina;Zdobnova, Irina;Koenig, Imbritt;Landwehr, Marco;Kreutz, Martin;Smalla, Karl-Heinz;Richter, Karin;Landgraf, Peter;Reissner, Carsten;Boeckers, Tobias M.;Zuschratter, Werner;Spilker, Christina;Seidenbecher, Constanze I.;Garner, Craig C.;Gundelfinger, Eckart D.;Kreutz, Michael R.
通讯作者:
Kreutz, Michael R.
DOI:
10.1523/jneurosci.3739-09.2010
发表时间:
2010-04-14
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Higashi-Kovtun ME;Mosca TJ;Dickman DK;Meinertzhagen IA;Schwarz TL
通讯作者:
Schwarz TL
影响因子:
5.3
作者:
Gumy, Laura F.;Tan, Chin Lik;Fawcett, James W.
通讯作者:
Fawcett, James W.
DOI:
10.1073/pnas.0803906105
发表时间:
2008-11-04
影响因子:
11.1
作者:
Lai, Kwok-On;Zhao, Yali;Martin, Kelsey C.
通讯作者:
Martin, Kelsey C.