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Titolo:
BINARY EXPRESSION OF OLFACTORY BULB-PROTEIN TYROSINE PHOSPHATASE IN RAT CENTRAL-NERVOUS-SYSTEM - DEVELOPMENTAL GENE-REGULATION IN NEONATE CEREBRAL-CORTEX AND CONSTITUTIVE EXPRESSION IN OLFACTORY-RHINENCEPHALON
Autore:
YAHAGI Y; TAGAWA M; TOMODA T; SHIRASAWA T;
Indirizzi:
TOKYO METROPOLITAN INST GERONTOL,DEPT MOLEC PATHOL,ITABASHI KU,35-2 SAKAE CHO TOKYO 173 JAPAN TOKYO METROPOLITAN INST GERONTOL,DEPT MOLEC PATHOL,ITABASHI KU TOKYO 173 JAPAN CHIBA UNIV,SCH MED,DEPT BIOCHEM CHIBA 260 JAPAN
Titolo Testata:
Neuroscience letters
fascicolo: 2, volume: 211, anno: 1996,
pagine: 125 - 128
SICI:
0304-3940(1996)211:2<125:BEOOBT>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
AXONS;
Keywords:
OLFACTORY BULB-PROTEIN TYROSINE PHOSPHATASE; OLFACTORY BULB; IN SITU HYBRIDIZATION; POSTMITOTIC NEURONS; AXONOGENESIS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
14
Recensione:
Indirizzi per estratti:
Citazione:
Y. Yahagi et al., "BINARY EXPRESSION OF OLFACTORY BULB-PROTEIN TYROSINE PHOSPHATASE IN RAT CENTRAL-NERVOUS-SYSTEM - DEVELOPMENTAL GENE-REGULATION IN NEONATE CEREBRAL-CORTEX AND CONSTITUTIVE EXPRESSION IN OLFACTORY-RHINENCEPHALON", Neuroscience letters, 211(2), 1996, pp. 125-128

Abstract

Olfactory bulb-protein tyrosine phosphatase (OB-PTP) is a receptor type PTPase dominantly expressed in olfactory bulb. Previously, we isolated and molecularly cloned a rat OB-PTP cDNA from an embryonal brain cDNA library. In the present study, we investigated its temporal and spatial gene expression by Northern blot and in situ hybridization analysis. The expression of OB-PTP gene was firstly detected in day 16 postcoitum embryo and significantly increased during the late-gestationalstage, attaining the highest level in the first week of neonate. The OB-PTP transcript was then down-regulated postnatally and was detectedbarely in an adult blain. In situ hybridization analysis showed that the transcript was characteristically localized in the postmitotic neurons of cerebral cortex and subcortical structures, and was down-regulated by day 28 when the cortical and subcortical structures have been organized. In the olfactory-rhinencephalon system including olfactory bulb and piriform cortex, the OB-PTP was preferentially expressed in the postmitotic neurons, and in contrast continuously expressed in the matured brain. Based on the evidence that DPTP10D, the Drosophila homolog of OB-PTP, is localized in the axons of specific pioneer neurons in Drosophila embryo, the OB-PTP is presumably involved in the axonogenesis of cortical and subcortical neurons as well as olfactory neurons in mammalian central nervous system. The biological significance of transcriptional regulation in olfactory system is discussed in terms of continuous axonal connections by regenerating olfactory neurons.

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Documento generato il 28/11/20 alle ore 12:47:27