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Sex Differences in Gene Expression and Regulatory Networks across 29 Human Tissues.


ABSTRACT: Sex differences manifest in many diseases and may drive sex-specific therapeutic responses. To understand the molecular basis of sex differences, we evaluated sex-biased gene regulation by constructing sample-specific gene regulatory networks in 29 human healthy tissues using 8,279 whole-genome expression profiles from the Genotype-Tissue Expression (GTEx) project. We find sex-biased regulatory network structures in each tissue. Even though most transcription factors (TFs) are not differentially expressed between males and females, many have sex-biased regulatory targeting patterns. In each tissue, genes that are differentially targeted by TFs between the sexes are enriched for tissue-related functions and diseases. In brain tissue, for example, genes associated with Parkinson's disease and Alzheimer's disease are targeted by different sets of TFs in each sex. Our systems-based analysis identifies a repertoire of TFs that play important roles in sex-specific architecture of gene regulatory networks, and it underlines sex-specific regulatory processes in both health and disease.

SUBMITTER: Lopes-Ramos CM 

PROVIDER: S-EPMC7898458 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature

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Sex Differences in Gene Expression and Regulatory Networks across 29 Human Tissues.

Lopes-Ramos Camila M CM   Chen Cho-Yi CY   Kuijjer Marieke L ML   Paulson Joseph N JN   Sonawane Abhijeet R AR   Fagny Maud M   Platig John J   Glass Kimberly K   Quackenbush John J   DeMeo Dawn L DL  

Cell reports 20200601 12


Sex differences manifest in many diseases and may drive sex-specific therapeutic responses. To understand the molecular basis of sex differences, we evaluated sex-biased gene regulation by constructing sample-specific gene regulatory networks in 29 human healthy tissues using 8,279 whole-genome expression profiles from the Genotype-Tissue Expression (GTEx) project. We find sex-biased regulatory network structures in each tissue. Even though most transcription factors (TFs) are not differentially  ...[more]

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