NF-κB Signaling in the Brain of Autistic Subjects

Autism is a neurodevelopmental disorder characterized by problems in communication, social skills, and repetitive behavior. Recent studies suggest that apoptotic and inflammatory mechanisms may contribute to the pathogenesis of this disorder. Nuclear factor-κB (NF-κB) is an important gene transcript...

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Main Authors: Mazhar Malik, Zujaja Tauqeer, Ashfaq M. Sheikh, Guang Wen, Amenah Nagori, Kun Yang, W. Ted Brown, Xiaohong Li
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Mediators of Inflammation
Online Access:http://dx.doi.org/10.1155/2011/785265
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author Mazhar Malik
Zujaja Tauqeer
Ashfaq M. Sheikh
Guang Wen
Amenah Nagori
Kun Yang
W. Ted Brown
Xiaohong Li
author_facet Mazhar Malik
Zujaja Tauqeer
Ashfaq M. Sheikh
Guang Wen
Amenah Nagori
Kun Yang
W. Ted Brown
Xiaohong Li
author_sort Mazhar Malik
collection DOAJ
description Autism is a neurodevelopmental disorder characterized by problems in communication, social skills, and repetitive behavior. Recent studies suggest that apoptotic and inflammatory mechanisms may contribute to the pathogenesis of this disorder. Nuclear factor-κB (NF-κB) is an important gene transcriptional factor involved in the mediation of inflammation and apoptosis. This study examined the activities of the NF-κB signaling pathway in the brain of autistic subjects and their age-matched controls. The NF-κB activation is also determined in the brain of BTBR mice, which is a promising animal model for study of pathogenic mechanisms responsible for autism. Our results showed that the level of IKKα kinase, which phosphorylates the inhibitory subunit IκBα, is significantly increased in the cerebellum of autistic subjects. However, the expression and phosphorylation of IκBα are not altered. In addition, our results demonstrated that the expression of NF-κB (p65), and the phosphorylation/activation of NF-κB (p65) at Ser536 are not significantly changed in the cerebellum and cortex of both autistic subjects and BTBR mice. Our findings suggest that the NF-κB signaling pathway is not disregulated in the brain of autistic subjects and thus may not be significantly involved in the processes of abnormal inflammatory responses suggested in autistic brain.
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spelling doaj-art-fb778b8d8b1d49e9b19f481aefb0162d2025-02-03T05:58:51ZengWileyMediators of Inflammation0962-93511466-18612011-01-01201110.1155/2011/785265785265NF-κB Signaling in the Brain of Autistic SubjectsMazhar Malik0Zujaja Tauqeer1Ashfaq M. Sheikh2Guang Wen3Amenah Nagori4Kun Yang5W. Ted Brown6Xiaohong Li7Department of Neurochemistry, New York State Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Road, Staten Island, New York, NY 10314, USADepartment of Neurochemistry, New York State Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Road, Staten Island, New York, NY 10314, USADepartment of Neurochemistry, New York State Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Road, Staten Island, New York, NY 10314, USADepartment of Neurochemistry, New York State Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Road, Staten Island, New York, NY 10314, USADepartment of Neurochemistry, New York State Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Road, Staten Island, New York, NY 10314, USADepartment of Neurochemistry, New York State Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Road, Staten Island, New York, NY 10314, USADepartment of Neurochemistry, New York State Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Road, Staten Island, New York, NY 10314, USADepartment of Neurochemistry, New York State Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Road, Staten Island, New York, NY 10314, USAAutism is a neurodevelopmental disorder characterized by problems in communication, social skills, and repetitive behavior. Recent studies suggest that apoptotic and inflammatory mechanisms may contribute to the pathogenesis of this disorder. Nuclear factor-κB (NF-κB) is an important gene transcriptional factor involved in the mediation of inflammation and apoptosis. This study examined the activities of the NF-κB signaling pathway in the brain of autistic subjects and their age-matched controls. The NF-κB activation is also determined in the brain of BTBR mice, which is a promising animal model for study of pathogenic mechanisms responsible for autism. Our results showed that the level of IKKα kinase, which phosphorylates the inhibitory subunit IκBα, is significantly increased in the cerebellum of autistic subjects. However, the expression and phosphorylation of IκBα are not altered. In addition, our results demonstrated that the expression of NF-κB (p65), and the phosphorylation/activation of NF-κB (p65) at Ser536 are not significantly changed in the cerebellum and cortex of both autistic subjects and BTBR mice. Our findings suggest that the NF-κB signaling pathway is not disregulated in the brain of autistic subjects and thus may not be significantly involved in the processes of abnormal inflammatory responses suggested in autistic brain.http://dx.doi.org/10.1155/2011/785265
spellingShingle Mazhar Malik
Zujaja Tauqeer
Ashfaq M. Sheikh
Guang Wen
Amenah Nagori
Kun Yang
W. Ted Brown
Xiaohong Li
NF-κB Signaling in the Brain of Autistic Subjects
Mediators of Inflammation
title NF-κB Signaling in the Brain of Autistic Subjects
title_full NF-κB Signaling in the Brain of Autistic Subjects
title_fullStr NF-κB Signaling in the Brain of Autistic Subjects
title_full_unstemmed NF-κB Signaling in the Brain of Autistic Subjects
title_short NF-κB Signaling in the Brain of Autistic Subjects
title_sort nf κb signaling in the brain of autistic subjects
url http://dx.doi.org/10.1155/2011/785265
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