Cited by 767Gene expression and cancer classificationSingle-cell and spatial transcriptomicsBioinformatics and Genomic Networks

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Functional organization of the transcriptome in human brain

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Abstract

The enormous complexity of the human brain ultimately derives from a finite set of molecular instructions encoded in the human genome. These instructions can be directly studied by exploring the organization of the brain's transcriptome through systematic analysis of gene coexpression relationships. We analyzed gene coexpression relationships in microarray data generated from specific human brain regions and identified modules of coexpressed genes that correspond to neurons, oligodendrocytes, astrocytes and microglia. These modules provide an initial description of the transcriptional programs that distinguish the major cell classes of the human brain and indicate that cell type-specific information can be obtained from whole brain tissue without isolating homogeneous populations of cells. Other modules corresponded to additional cell types, organelles, synaptic function, gender differences and the subventricular neurogenic niche. We found that subventricular zone astrocytes, which are thought to function as neural stem cells in adults, have a distinct gene expression pattern relative to protoplasmic astrocytes. Our findings provide a new foundation for neurogenetic inquiries by revealing a robust and previously unrecognized organization to the human brain transcriptome.

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Metadata

Authors
Oldham, M. C., Konopka, G., Iwamoto, K., Langfelder, P., Kato, T., Horvath, S., & Geschwind, D. H.
Affiliations
  • University of California, Los Angeles (US)
  • RIKEN Center for Brain Science (JP)
Corresponding author
  • Oldham, Michael C
  • Geschwind, Daniel H
Venue
Nature Neuroscience
Published
2008-10-12
Volume
11
Issue
11
Pages
1271-1282
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W2081837126
Cited by
752
References
50
Citations by year
2026: 17 · 2025: 19 · 2024: 26 · 2023: 18 · 2022: 40 · 2021: 70 · 2020: 43 · 2019: 59 · 2018: 53 · 2017: 51 · 2016: 42 · 2015: 54 · 2014: 53 · 2013: 53 · 2012: 53
FWCI
13.73
Type
journal article
Language
en
Open access
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Mental Health (R37MH060233)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene expression and cancer classification
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Single-cell and spatial transcriptomics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bioinformatics and Genomic Networks
Keywords
human brain transcriptome, gene co-expression, gene co-expression modules, cell type-specific gene expression, neurons, oligodendrocytes, astrocytes, microglia, neural stem cells, synaptic function, gender differences, neurogenesis, transcriptional programs
MeSH terms
Brain, Caudate Nucleus, Cerebellum, Cerebral Cortex, Humans, Neuroglia, Neurons, Gene Expression, Gene Expression Profiling, Databases, Genetic, Microarray Analysis, Gene Regulatory Networks

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