Vitamin E Deficiency Disrupts Gene Expression Networks During Zebrafish Development
Overview
Affiliations
Vitamin E (VitE) is essential for vertebrate embryogenesis, but the mechanisms involved remain unknown. To study embryonic development, we fed zebrafish adults (>55 days) either VitE sufficient (E+) or deficient (E-) diets for >80 days, then the fish were spawned to generate E+ and E- embryos. To evaluate the transcriptional basis of the metabolic and phenotypic outcomes, E+ and E- embryos at 12, 18 and 24 h post-fertilization (hpf) were subjected to gene expression profiling by RNASeq. Hierarchical clustering, over-representation analyses and gene set enrichment analyses were performed with differentially expressed genes. E- embryos experienced overall disruption to gene expression associated with gene transcription, carbohydrate and energy metabolism, intracellular signaling and the formation of embryonic structures. mTOR was apparently a major controller of these changes. Thus, embryonic VitE deficiency results in genetic and transcriptional dysregulation as early as 12 hpf, leading to metabolic dysfunction and ultimately lethal outcomes.
Zebrafish ApoB-Containing Lipoprotein Metabolism: A Closer Look.
Moll T, Farber S Arterioscler Thromb Vasc Biol. 2024; 44(5):1053-1064.
PMID: 38482694 PMC: 11042983. DOI: 10.1161/ATVBAHA.123.318287.
Jian L, Xue Y, Gao Y, Wang B, Qu Y, Li S Molecules. 2021; 26(15).
PMID: 34361674 PMC: 8348559. DOI: 10.3390/molecules26154520.
RedEfish: Generation of the Polycistronic mScarlet: GSG-T2A: Ttpa Zebrafish Line.
Head B, La Du J, Barton C, Zhang J, Wong C, Ho E Antioxidants (Basel). 2021; 10(6).
PMID: 34208660 PMC: 8235169. DOI: 10.3390/antiox10060965.
Watt A, Head B, Leonard S, Tanguay R, Traber M J Nutr Biochem. 2021; 97:108801.
PMID: 34119630 PMC: 10129037. DOI: 10.1016/j.jnutbio.2021.108801.