Developmentally regulated expression of Neuro-p24 and its possible function in neurite extension

Process extension is a most marked and characteristic neuronal feature that is observed during the development, regeneration and plasticity of nervous system tissues. Neuro-p24, a novel membranous protein with a molecular weight of 24 kDa, is specifically localized in neurons, particularly in the ne...

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Veröffentlicht in:Neuroscience research 2002-12, Vol.44 (4), p.379-389
Hauptverfasser: Araki, Masasuke, Nagata, Kizashi, Satoh, Yumiko, Kadota, Yoichi, Hisha, Hiroko, Adachi, Yasushi, Taketani, Shigeru
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container_end_page 389
container_issue 4
container_start_page 379
container_title Neuroscience research
container_volume 44
creator Araki, Masasuke
Nagata, Kizashi
Satoh, Yumiko
Kadota, Yoichi
Hisha, Hiroko
Adachi, Yasushi
Taketani, Shigeru
description Process extension is a most marked and characteristic neuronal feature that is observed during the development, regeneration and plasticity of nervous system tissues. Neuro-p24, a novel membranous protein with a molecular weight of 24 kDa, is specifically localized in neurons, particularly in the neurites. Based on its molecular structure and distribution pattern in the brain we proposed that Neuro-p24 plays a role in neurite extension. In the present study we have made several findings that support this hypothesis; first, Neuro-p24 was abundant in motor axonal fibers, neurites of dorsal root ganglia neurons and apical dendrites of cerebral cortex neurons when their extension or arborization was proceeding very actively. Secondly, when COS-7 epithelial cells were transfected with either wild-type or deletion-mutated Neuro-p24 cDNAs, ectopic expression of wild-type cDNA caused morphological alterations resulting in a neuron-like appearance. These observations firmly support our proposal and indicate that Neuro-p24 plays an important role in the nervous tissue.
doi_str_mv 10.1016/S0168-0102(02)00156-6
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source MEDLINE; ScienceDirect Journals (5 years ago - present)
subjects Animals
Animals, Newborn
cDNA transfection
Cell Differentiation - physiology
Cerebral cortex
Cerebral Cortex - cytology
Cerebral Cortex - growth & development
Cerebral Cortex - metabolism
COS Cells
DNA, Complementary - genetics
DRG neuron
Epithelial Cells - cytology
Epithelial Cells - metabolism
Ganglia, Spinal - cytology
Ganglia, Spinal - growth & development
Ganglia, Spinal - metabolism
Gene Expression Regulation, Developmental - physiology
Immunohistochemistry
Mice
Motor nerve axon
Mutation - genetics
Nerve Tissue Proteins - deficiency
Nerve Tissue Proteins - genetics
Nervous System - cytology
Nervous System - growth & development
Nervous System - metabolism
Neurite extension
Neurites - metabolism
Neuro-p24
Neuromuscular Junction - cytology
Neuromuscular Junction - growth & development
Neuromuscular Junction - metabolism
Neuronal Plasticity - physiology
Pyramidal Cells - cytology
Pyramidal Cells - metabolism
title Developmentally regulated expression of Neuro-p24 and its possible function in neurite extension
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