RGD Reference Report - MAPK-upstream protein kinase (MUK) regulates the radial migration of immature neurons in telencephalon of mouse embryo. - Rat Genome Database

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MAPK-upstream protein kinase (MUK) regulates the radial migration of immature neurons in telencephalon of mouse embryo.

Authors: Hirai, S  Kawaguchi, A  Hirasawa, R  Baba, M  Ohnishi, T  Ohno, S 
Citation: Hirai S, etal., Development 2002 Oct;129(19):4483-95.
RGD ID: 727427
Pubmed: PMID:12223406   (View Abstract at PubMed)

The radial migration of differentiating neurons provides an essential step in the generation of laminated neocortex, although its molecular mechanism is not fully understood. We show that the protein levels of a JNK activator kinase, MUK/DLK/ZPK, and JNK activity increase potently and temporally in newly generated neurons in developing mouse telencephalon during radial migration. The ectopic expression of MUK/DLK/ZPK in neural precursor cells in utero impairs radial migration, whereas it allows these cells to leave the ventricular zone and differentiate into neural cells. The MUK/DLK/ZPK protein is associated with dotted structures that are frequently located along microtubules and with Golgi apparatus in cultured embryonic cortical cells. In COS-1 cells, MUK/DLK/ZPK overexpression impairs the radial organization of microtubules without massive depolymerization. These results suggest that MUK/DLK/ZPK and JNK regulate radial cell migration via microtubule-based events.

Objects referenced in this article
Gene Map3k12 mitogen-activated protein kinase kinase kinase 12 Mus musculus
Gene Mapk1 mitogen-activated protein kinase 1 Mus musculus
Gene Mapk12 mitogen-activated protein kinase 12 Mus musculus
Gene Mapk14 mitogen-activated protein kinase 14 Mus musculus
Gene Mapk3 mitogen-activated protein kinase 3 Mus musculus
Gene Mapk9 mitogen-activated protein kinase 9 Mus musculus
Gene Map3k12 mitogen activated protein kinase kinase kinase 12 Rattus norvegicus

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