Genes Associated with Disturbed Cerebral Neurogenesis in the Embryonic Brain of Mouse Models of Down Syndrome

Down syndrome (DS), also known as trisomy 21, is the most frequent genetic cause of intellectual disability. Although the mechanism remains unknown, delayed brain development is assumed to be involved in DS intellectual disability. Analyses with human with DS and mouse models have shown that defects...

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Main Author: Keiichi Ishihara
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Genes
Subjects:
Online Access:https://www.mdpi.com/2073-4425/12/10/1598
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author Keiichi Ishihara
author_facet Keiichi Ishihara
author_sort Keiichi Ishihara
collection DOAJ
description Down syndrome (DS), also known as trisomy 21, is the most frequent genetic cause of intellectual disability. Although the mechanism remains unknown, delayed brain development is assumed to be involved in DS intellectual disability. Analyses with human with DS and mouse models have shown that defects in embryonic cortical neurogenesis may lead to delayed brain development. Cre-loxP-mediated chromosomal engineering has allowed the generation of a variety of mouse models carrying various partial Mmu16 segments. These mouse models are useful for determining genotype–phenotype correlations and identifying dosage-sensitive genes involved in the impaired neurogenesis. In this review, we summarize several candidate genes and pathways that have been linked to defective cortical neurogenesis in DS.
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spelling doaj.art-8e127baeb55f4a4fa60560306b0a1cd92023-11-22T18:22:30ZengMDPI AGGenes2073-44252021-10-011210159810.3390/genes12101598Genes Associated with Disturbed Cerebral Neurogenesis in the Embryonic Brain of Mouse Models of Down SyndromeKeiichi Ishihara0Department of Pathological Biochemistry, Kyoto Pharmaceutical University, Kyoto 607-8414, JapanDown syndrome (DS), also known as trisomy 21, is the most frequent genetic cause of intellectual disability. Although the mechanism remains unknown, delayed brain development is assumed to be involved in DS intellectual disability. Analyses with human with DS and mouse models have shown that defects in embryonic cortical neurogenesis may lead to delayed brain development. Cre-loxP-mediated chromosomal engineering has allowed the generation of a variety of mouse models carrying various partial Mmu16 segments. These mouse models are useful for determining genotype–phenotype correlations and identifying dosage-sensitive genes involved in the impaired neurogenesis. In this review, we summarize several candidate genes and pathways that have been linked to defective cortical neurogenesis in DS.https://www.mdpi.com/2073-4425/12/10/1598Down syndromeprenatal neurogenesisbrain developmentresponsible genesrelated pathway
spellingShingle Keiichi Ishihara
Genes Associated with Disturbed Cerebral Neurogenesis in the Embryonic Brain of Mouse Models of Down Syndrome
Genes
Down syndrome
prenatal neurogenesis
brain development
responsible genes
related pathway
title Genes Associated with Disturbed Cerebral Neurogenesis in the Embryonic Brain of Mouse Models of Down Syndrome
title_full Genes Associated with Disturbed Cerebral Neurogenesis in the Embryonic Brain of Mouse Models of Down Syndrome
title_fullStr Genes Associated with Disturbed Cerebral Neurogenesis in the Embryonic Brain of Mouse Models of Down Syndrome
title_full_unstemmed Genes Associated with Disturbed Cerebral Neurogenesis in the Embryonic Brain of Mouse Models of Down Syndrome
title_short Genes Associated with Disturbed Cerebral Neurogenesis in the Embryonic Brain of Mouse Models of Down Syndrome
title_sort genes associated with disturbed cerebral neurogenesis in the embryonic brain of mouse models of down syndrome
topic Down syndrome
prenatal neurogenesis
brain development
responsible genes
related pathway
url https://www.mdpi.com/2073-4425/12/10/1598
work_keys_str_mv AT keiichiishihara genesassociatedwithdisturbedcerebralneurogenesisintheembryonicbrainofmousemodelsofdownsyndrome