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J Proteome Res. 2014 Mar 7;13(3):1647-56. doi: 10.1021/pr401108d. Epub 2014 Feb 10.

Proteome-driven elucidation of adaptive responses to combined vitamin E and C deficiency in zebrafish.

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1
Department of Chemistry, Oregon State University , 153 Gilbert Hall, Corvallis, Oregon 97331, United States.

Abstract

The purpose of this study was to determine the system-wide consequences of deficiencies in two essential micronutrients, vitamins E and C, on the proteome using zebrafish (Danio rerio) as one of the few vertebrate models that similar to humans cannot synthesize vitamin C. We describe a label-free proteomics workflow to detect changes in protein abundance estimates dependent on vitamin regimes. We used ion-mobility-enhanced data-independent tandem mass spectrometry to determine differential regulation of proteins in response to low dietary levels of vitamin C with or without vitamin E. The detection limit of the method was as low as 20 amol, and the dynamic range was five orders of magnitude for the protein-level estimates. On the basis of the quantitative changes obtained, we built a network of protein interactions that reflect the whole organism's response to vitamin C deficiency. The proteomics-driven study revealed that in vitamin-E-deficient fish, vitamin C deficiency is associated with induction of stress response, astrogliosis, and a shift from glycolysis to glutaminolysis as an alternative mechanism to satisfy cellular energy requirements.

PMID:
24476500
PMCID:
PMC3993953
DOI:
10.1021/pr401108d
[Indexed for MEDLINE]
Free PMC Article
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