Reduced programmed cell death in brains of serotonin transporter knockout mice.

Abstract:

:Serotonin (5-HT) is known to reduce apoptosis and in rodent models of brain ischemia. Modulation of programmed cell death during neural development was assessed in early postnatal brains of serotonin transporter (5-HTT) knockout mice, characterized by elevated extracellular 5-HT levels. The number of apoptotic cells visualized at postnatal day-1 (P1) by ISEL+ or TUNEL staining was significantly reduced in the striatum, thalamus/hypothalamus, cerebral cortex and hippocampus of 5-HTT knockout mice, compared to wild type and heterozygote mice, with differences displaying an increasing fronto-caudal gradient and regional specificity. These findings underscore 5-HT roles in the regulation of programmed cell death during brain development, and spur interest into pharmacological interventions aimed at relieving pathological apoptosis by potentiating serotoninergic neurotransmission.

journal_name

Neuroreport

journal_title

Neuroreport

authors

Persico AM,Baldi A,Dell'Acqua ML,Moessner R,Murphy DL,Lesch KP,Keller F

doi

10.1097/00001756-200303030-00009

subject

Has Abstract

pub_date

2003-03-03 00:00:00

pages

341-4

issue

3

eissn

0959-4965

issn

1473-558X

journal_volume

14

pub_type

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