Multiomic identification of key transcriptional regulatory programs during endurance exercise training
biorxiv(2023)
摘要
Transcription factors (TFs) play a key role in regulating gene expression and responses to stimuli. We conducted an integrated analysis of chromatin accessibility and RNA expression across various rat tissues following endurance exercise training (EET) to map epigenomic changes to transcriptional changes and determine key TFs involved. We uncovered tissue-specific changes across both omic layers, including highly correlated differentially accessible regions (DARs) and differentially expressed genes (DEGs). We identified open chromatin regions associated with DEGs (DEGaPs) and found tissue-specific and genomic feature-specific TF motif enrichment patterns among both DARs and DEGaPs. Accessible promoters of up-vs. down-regulated DEGs per tissue showed distinct TF enrichment patterns. Further, some EET-induced TFs in skeletal muscle were either validated at the proteomic level (MEF2C and NUR77) or correlated with exercise-related phenotypic changes. We provide an in-depth analysis of the epigenetic and trans-factor-dependent processes governing gene expression during EET.
### Competing Interest Statement
S.C.B. has equity in Emmyon, Inc and receives grant funding from Calico Life Sciences. M.P.S. is a cofounder and scientific advisor of Personalis, Qbio, January AI, Filtricine, SensOmics, Protos, Fodsel, Rthm, Marble and scientific advisor of Genapsys, Swaz, Jupiter. S.B.M. is a consultant for BioMarin, MyOme and Tenaya Therapeutics.
* HEART
: Heart
SKM-GN
: Skeletal muscle (Gastrocnemius)
WAT-SC
: Subcutaneous white adipose tissue
BAT
: Brown adipose tissue
LIVER
: Liver
LUNG
: Lung
KIDNEY
: Kidney
HIPPOC
: Hippocampus
EET
: Endurance Exercise Training
DAR
: Differentially accessible regions
DEG
: Differentially expressed genes
DEGaP
: Differentially expressed gene associated peaks
TSS
: Transcription start site
TES
: Transcription end site
TF
: Transcription factor
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关键词
key transcriptional regulatory programs,multiomic identification,exercise,training
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