[en] Neutrophils are vital components of the immune system for limiting the invasion and proliferation of pathogens in the body. Surprisingly, the functional annotation of porcine neutrophils is still limited. The transcriptomic and epigenetic assessment of porcine neutrophils from healthy pigs was performed by bulk RNA sequencing and transposase accessible chromatin sequencing (ATAC-seq). First, we sequenced and compared the transcriptome of porcine neutrophils with eight other immune cell transcriptomes to identify a neutrophil-enriched gene list within a detected neutrophil co-expression module. Second, we used ATAC-seq analysis to report for the first time the genome-wide chromatin accessible regions of porcine neutrophils. A combined analysis using both transcriptomic and chromatin accessibility data further defined the neutrophil co-expression network controlled by transcription factors likely important for neutrophil lineage commitment and function. We identified chromatin accessible regions around promoters of neutrophil-specific genes that were predicted to be bound by neutrophil-specific transcription factors. Additionally, published DNA methylation data from porcine immune cells including neutrophils were used to link low DNA methylation patterns to accessible chromatin regions and genes with highly enriched expression in porcine neutrophils. In summary, our data provides the first integrative analysis of the accessible chromatin regions and transcriptional status of porcine neutrophils, contributing to the Functional Annotation of Animal Genomes (FAANG) project, and demonstrates the utility of chromatin accessible regions to identify and enrich our understanding of transcriptional networks in a cell type such as neutrophils.
Disciplines :
Agriculture & agronomy
Author, co-author :
Herrera-Uribe, Juber; Department of Animal Science, Iowa State University, Ames, IA, United States
Lim, Kyu-Sang; Department of Animal Science, Iowa State University, Ames, IA, United States ; Department of Animal Resource Science, Kongju National University, Yesan, Republic of Korea
Byrne, Kristen A; USDA-Agriculture Research Service, National Animal Disease Center, Food Safety and Enteric Pathogens Research Unit, Ames, IA, United States
Daharsh, Lance; Department of Animal Science, Iowa State University, Ames, IA, United States
Liu, Haibo; Department of Animal Science, Iowa State University, Ames, IA, United States
Corbett, Ryan J; Department of Animal Science, Iowa State University, Ames, IA, United States
Marco, Gianna; Department of Animal Science, Iowa State University, Ames, IA, United States
Schroyen, Martine ; Université de Liège - ULiège > Département GxABT > Animal Sciences (AS) ; Department of Animal Science, Iowa State University, Ames, IA, United States
Koltes, James E; Department of Animal Science, Iowa State University, Ames, IA, United States
Loving, Crystal L; USDA-Agriculture Research Service, National Animal Disease Center, Food Safety and Enteric Pathogens Research Unit, Ames, IA, United States
Tuggle, Christopher K; Department of Animal Science, Iowa State University, Ames, IA, United States
Language :
English
Title :
Integrative profiling of gene expression and chromatin accessibility elucidates specific transcriptional networks in porcine neutrophils.
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