Article ; Online: Combined transcriptomics and proteomics unveil the impact of vitamin C in modulating specific protein abundance in the mouse liver.
2024 Volume 57, Issue 1, Page(s) 26
Abstract: Background: Vitamin C (ascorbate) is a water-soluble antioxidant and an important cofactor for various biosynthetic and regulatory enzymes. Mice can synthesize vitamin C thanks to the key enzyme gulonolactone oxidase (Gulo) unlike humans. In the current ...
Abstract | Background: Vitamin C (ascorbate) is a water-soluble antioxidant and an important cofactor for various biosynthetic and regulatory enzymes. Mice can synthesize vitamin C thanks to the key enzyme gulonolactone oxidase (Gulo) unlike humans. In the current investigation, we used Gulo Results: Principal component analyses revealed distinctive differences in the mRNA and protein profiles as a function of sex between all the mouse cohorts. Despite such sexual dimorphism, Spearman analyses of transcriptomics data from females and males revealed correlations of hepatic ascorbate levels with transcripts encoding a wide array of biological processes involved in glucose and lipid metabolisms as well as in the acute-phase immune response. Moreover, integration of the proteomics data showed that ascorbate modulates the abundance of various enzymes involved in lipid, xenobiotic, organic acid, acetyl-CoA, and steroid metabolism mainly at the transcriptional level, especially in females. However, several proteins of the mitochondrial complex III significantly correlated with ascorbate concentrations in both males and females unlike their corresponding transcripts. Finally, poly(ribo)some profiling did not reveal significant enrichment difference for these mitochondrial complex III mRNAs between Gulo Conclusions: Thus, the abundance of several subunits of the mitochondrial complex III are regulated by ascorbate at the post-transcriptional levels. Our extensive omics analyses provide a novel resource of altered gene expression patterns at the transcriptional and post-transcriptional levels under ascorbate deficiency. |
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MeSH term(s) | Animals ; Ascorbic Acid/metabolism ; Liver/metabolism ; Liver/drug effects ; Female ; Male ; Proteomics ; Mice ; L-Gulonolactone Oxidase/genetics ; L-Gulonolactone Oxidase/metabolism ; Gene Expression Profiling ; Transcriptome ; Principal Component Analysis ; Antioxidants/metabolism |
Chemical Substances | Ascorbic Acid (PQ6CK8PD0R) ; L-Gulonolactone Oxidase (EC 1.1.3.8) ; Antioxidants |
Language | English |
Publishing date | 2024-05-12 |
Publishing country | England |
Document type | Journal Article |
ZDB-ID | 1138990-4 |
ISSN | 0717-6287 ; 0716-9760 |
ISSN (online) | 0717-6287 |
ISSN | 0716-9760 |
DOI | 10.1186/s40659-024-00509-x |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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