One of the most important functional specializations of the human cerebral cortex is that of the perisylvian cortex and the other subcortical regions with which it is connected. These regions are involved in human higher cognition and behavior, including language. Surprisingly little is known about the biological processes that underlie the development of perisylvian cortical regions in humans, their asymmetry, and presence in other potential model organisms. This proposal is an extension of the Pi's Merit Award, in which we have worked successfully to identify key genes involved in human higher cognition by virtue of their asymmetric expression or enrichment in perisylvian cortex, including CNTNAP2 and other extracellular adhesion molecules that are also related to neuropsychlatric disease. In parallel, we have developed an entirely novel approach to elucidate the complex structure of the transcriptome, and successfully applied this to adult human brain. We propose to apply these methods in conjunction with NextGen sequencing to perform digital gene expression in anatomically defined interconnected human language cortex and its homologues in nonhuman primates. This work will put gene products in a clear functional context, enabling characterization of the set of genes most central to this aspect of human brain organization, rather than relying on less structured means of prioritizing genes for follow-up. Putative differentially expressed genes and key hub genes within the networks will be confirmed using qRT-PCR and In Situ hybridization. Cross species comparisons, in mice and non-human primate species will continue to be performed to investigate the evolutionary conservation of genes that are central hubs of the modules that are enriched in languagerelated cortex in adults, or asymmetrically expressed in the developing human cerebral cortex. This will provide insight into the potential role of these genes in the development and evolution of language and related human cognitive specializations and the relationship of these regions in lower species to homologous human structures. All of this will clearly inform the study of human neurodevelopmental disorders that are related to speech and language, such as autism or schizoprenia, as we and others have already demonstrated, and provide proper context for the use of animal models for these disorders.

Public Health Relevance

This work will identify some of the critical pathways involved in human higher cognitive functions, such as language and social cognition. This has great relevance to our understanding of neurodevelopmental disorders such as autism and schizophrenia.

Agency
National Institute of Health (NIH)
Institute
National Institute of Mental Health (NIMH)
Type
Method to Extend Research in Time (MERIT) Award (R37)
Project #
5R37MH060233-12
Application #
8302392
Study Section
Special Emphasis Panel (NSS)
Program Officer
Beckel-Mitchener, Andrea C
Project Start
1999-07-10
Project End
2015-06-30
Budget Start
2012-07-01
Budget End
2013-06-30
Support Year
12
Fiscal Year
2012
Total Cost
$583,568
Indirect Cost
$204,628
Name
University of California Los Angeles
Department
Type
Schools of Medicine
DUNS #
092530369
City
Los Angeles
State
CA
Country
United States
Zip Code
90095
Parras, Alberto; Anta, Héctor; Santos-Galindo, María et al. (2018) Autism-like phenotype and risk gene mRNA deadenylation by CPEB4 mis-splicing. Nature 560:441-446
Jasinska, Anna J; Zelaya, Ivette; Service, Susan K et al. (2017) Genetic variation and gene expression across multiple tissues and developmental stages in a nonhuman primate. Nat Genet 49:1714-1721
Werling, Donna M; Parikshak, Neelroop N; Geschwind, Daniel H (2016) Gene expression in human brain implicates sexually dimorphic pathways in autism spectrum disorders. Nat Commun 7:10717
Miller, Leslie R; Jorgensen, Matthew J; Kaplan, Jay R et al. (2016) Alterations in levels and ratios of n-3 and n-6 polyunsaturated fatty acids in the temporal cortex and liver of vervet monkeys from birth to early adulthood. Physiol Behav 156:71-8
Parikshak, Neelroop N; Swarup, Vivek; Belgard, T Grant et al. (2016) Genome-wide changes in lncRNA, splicing, and regional gene expression patterns in autism. Nature 540:423-427
Won, Hyejung; de la Torre-Ubieta, Luis; Stein, Jason L et al. (2016) Chromosome conformation elucidates regulatory relationships in developing human brain. Nature 538:523-527
de la Torre-Ubieta, Luis; Won, Hyejung; Stein, Jason L et al. (2016) Advancing the understanding of autism disease mechanisms through genetics. Nat Med 22:345-61
Villar, Diego; Berthelot, Camille; Aldridge, Sarah et al. (2015) Enhancer evolution across 20 mammalian species. Cell 160:554-66
Bakken, Trygve E; Miller, Jeremy A; Luo, Rui et al. (2015) Spatiotemporal dynamics of the postnatal developing primate brain transcriptome. Hum Mol Genet 24:4327-39
Oguro-Ando, A; Rosensweig, C; Herman, E et al. (2015) Increased CYFIP1 dosage alters cellular and dendritic morphology and dysregulates mTOR. Mol Psychiatry 20:1069-78

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