The microtubule minus-end-binding protein patronin/PTRN-1 is required for axon regeneration in C. elegans.
The microtubule minus-end-binding protein patronin/PTRN-1 is required for axon regeneration in C. elegans.
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DOI:
10.1016/j.celrep.2014.09.054
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发表时间:
2014-11-06
期刊:
影响因子:
8.8
通讯作者:
Chisholm AD
中科院分区:
文献类型:
--
作者:
Chuang M;Goncharov A;Wang S;Oegema K;Jin Y;Chisholm AD
Precise regulation of microtubule (MT) dynamics is increasingly recognized as a critical determinant of axon regeneration. In contrast to developing neurons, mature axons exhibit noncentrosomal microtubule nucleation. The factors regulating noncentrosomal MT architecture in axon regeneration remain poorly understood. We report that PTRN-1, the C. elegans member of the Patronin/Nezha/CAMSAP family of microtubule minus end binding proteins, is critical for efficient axon regeneration in vivo. ptrn-1 null mutants display generally normal developmental axon outgrowth but significantly impaired regenerative regrowth after laser axotomy. Unexpectedly, mature axons in ptrn-1 mutants display elevated numbers of dynamic axonal MT before and after injury, suggesting PTRN-1 inhibits MT dynamics. The CKK domain of PTRN-1 is necessary and sufficient for its functions in axon regeneration and MT dynamics, and appears to stabilize MTs independent of minus end localization. Whereas in developing neurons PTRN-1 inhibits activity of the DLK-1 MAPK cascade, we find that in regeneration PTRN-1 and DLK-1 function together to promote axonal regrowth.
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影响因子:
48
作者:
Frokjaer-Jensen, Christian;Davis, M. Wayne;Hollopeter, Gunther;Taylor, Jon;Harris, Todd W.;Nix, Paola;Lofgren, Rachel;Prestgard-Duke, Michael;Bastiani, Michael;Moerman, Donald G.;Jorgensen, Erik M.
通讯作者:
Jorgensen, Erik M.
影响因子:
9.8
作者:
Shu X;Lev-Ram V;Deerinck TJ;Qi Y;Ramko EB;Davidson MW;Jin Y;Ellisman MH;Tsien RY
通讯作者:
Tsien RY
影响因子:
10.7
作者:
Baines, Anthony J.;Bignone, Paola A.;Phillips, Gareth W.
通讯作者:
Phillips, Gareth W.
影响因子:
11.8
作者:
Jiang, Kai;Hua, Shasha;Akhmanova, Anna
通讯作者:
Akhmanova, Anna
DOI:
10.1073/pnas.1404133111
发表时间:
2014-04-22
影响因子:
11.1
作者:
Hendershott, Melissa C.;Vale, Ronald D.
通讯作者:
Vale, Ronald D.