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Organization of the Brain

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Related Experiment Video

Updated: Jun 29, 2026

Generation and Downstream Analysis of Single-Cell and Single-Nuclei Transcriptomes in Brain Organoids

Generation and Downstream Analysis of Single-Cell and Single-Nuclei Transcriptomes in Brain Organoids

Published on: March 29, 2024

Functional organization of the transcriptome in human brain.

Michael C Oldham¹, Genevieve Konopka, Kazuya Iwamoto

¹Interdepartmental Program for Neuroscience, University of California Los Angeles, Los Angeles, California 90095, USA. oldham@ucla.edu

Nature Neuroscience

|October 14, 2008

Summary

Researchers mapped gene coexpression in the human brain, revealing distinct transcriptional programs for major cell types like neurons and glia. This provides new insights into brain organization without cell isolation.

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Area of Science:

Neuroscience
Genomics
Molecular Biology

Background:

The human brain's complexity arises from genomic instructions.
Understanding the brain's transcriptome is key to deciphering these instructions.
Gene coexpression analysis offers a method to study transcriptome organization.

Purpose of the Study:

To analyze gene coexpression relationships in human brain tissue.
To identify transcriptional programs distinguishing major brain cell types.
To reveal the organizational structure of the human brain transcriptome.

Main Methods:

Analysis of gene coexpression relationships using microarray data from human brain regions.
Identification of coexpressed gene modules corresponding to specific cell types and functions.

Main Results:

Modules of coexpressed genes were identified, corresponding to neurons, oligodendrocytes, astrocytes, and microglia.
Distinct transcriptional programs for major human brain cell classes were described.
Cell type-specific information was obtainable from whole brain tissue.
Unique gene expression patterns were observed in subventricular zone astrocytes compared to protoplasmic astrocytes.
Modules related to other cell types, organelles, synaptic function, gender differences, and the neurogenic niche were also identified.

Conclusions:

The human brain transcriptome exhibits robust, previously unrecognized organization.
Gene coexpression analysis is a powerful tool for understanding cell type-specific gene expression in the brain.
Findings provide a foundation for future neurogenetic research.