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Proteome and Phosphoproteome of AhR-dependent non-genomic signaling in endotoxin-activated macrophages

ABSTRACT: Emerging studies revealed an immunomodulatory role of the Aryl hydrocarbon receptor (AhR), a receptor sensing environmental contaminants, and involved in their detoxification. Besides its function as a transcription factor, AhR can participate in non-genomic signaling through ubiquitination and phosphorylation-dependent processes. In this study, a multi-PTM-omics approach, including proteome, ubiquitome, and phosphoproteome, was utilized to examine mechanisms of non-genomic AhR-signaling in endotoxin-activated monocyte-derived macrophages. This dataset entails proteome and phosphoproteome data.

INSTRUMENT(S): Q Exactive

ORGANISM(S): Homo Sapiens (human)

TISSUE(S): Primary Cell, Cell Culture, Macrophage

SUBMITTER: Henning Großkopf

LAB HEAD: Martin von Bergen

PROVIDER: PXD020770 | Pride | 2021-03-30

REPOSITORIES: Pride

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Project description:Sertoli cells provide nutrients and support for germ cell differentiation and maintain a stable microenvironment for spermatogenesis. Comprehensive identification of Sertoli cellular proteins is important in understanding spermatogenesis. In this study, we performed an integrative analysis of the proteome and phosphoproteome to explore the role of Sertoli cells in spermatogenesis. A total of 2912 and 753 proteins were identified from the proteome and phosphoproteome in Sertoli cells; 438 proteins were common to the proteome and phosphoproteome. In the proteome, ACTG1, ACTB, ACTA2, MYH9 were the most abundant proteins. Gene Ontology (GO) analysis indicated that most of the proteins are involved in the processes of localization, biosynthesis, gene expression, and transport. In addition, part of proteins related to Sertoli cell functions were also enriched. In the phosphoproteome, most of the proteins are involved in gene expression and the RNA metabolic process; the pathways mainly involve the spliceosome, mitogen-activated protein kinase（MAPK） signaling pathway, focal adhesion, and tight junctions. The pleckstrin homology-like domain is the most highly enriched protein domain in phosphoproteins. Cyclin-dependent kinases (CDKs) and protein kinases C (PKCs) were found to be highly active kinases in kinase-substrate network analysis. Ten proteins most closely related to network stability were found in the analysis of network interactions of proteins identified jointly by the phosphoproteome and proteome. Through immunohistochemistry and immunofluorescence verification of vimentin, it was found that there were localization differences between phosphorylated and non-phosphorylated vimentin in testicular tissue. This study is the first in-depth proteomic and phosphoproteomic analysis of the buffalo testicular Sertoli cells. The results provide insight into the role of Sertoli cells in spermatogenesis and provide clues for further study of male reproduction.

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Proteome and Phosphoproteome of AhR-dependent non-genomic signaling in endotoxin-activated macrophages

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