Nov 16, 2019

Brain cell type-specific enhancer-promoter interactome maps and disease- risk association

Science
Alexi NottChristopher K Glass

Abstract

Noncoding genetic variation is a major driver of phenotypic diversity, but functional interpretation is challenging. To better understand common genetic variation associated with brain diseases, we defined noncoding regulatory regions for major cell types of the human brain. Whereas psychiatric disorders were primarily associated with variants in transcriptional enhancers and promoters in neurons, sporadic Alzheimer's disease (AD) variants were largely confined to microglia enhancers. Interactome maps connecting disease-risk variants in cell-type-specific enhancers to promoters revealed an extended microglia gene network in AD. Deletion of a microglia-specific enhancer harboring AD-risk variants ablated BIN1 expression in microglia, but not in neurons or astrocytes. These findings revise and expand the list of genes likely to be influenced by noncoding variants in AD and suggest the probable cell types in which they function.

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Citations

Mentioned in this Paper

Brain Diseases
Genes
Transcription, Genetic
Neurons
Brain
Astrocytes
Gene Deletion
Promoter
Alzheimer's Disease
T-Cell Specificity

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