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Proteome changes of sheep rumen epithelium during postnatal development
Kaizhi Zheng1, Liangyong Guo2, Saif Ullah3
1Institute of Animal Husbandry and Veterinary, Zhejiang Academy of Agricultural Sciences, Hangzhou, China.
Frontiers in Genetics
|November 17, 2022
Summary
Sheep rumen epithelial development relies on mitochondrial biogenesis and signaling pathways like Wnt and Notch. Ubiquitination and histone modifications are key regulators in this crucial postnatal growth process.
Area of Science:
- Animal Science
- Proteomics
- Molecular Biology
Background:
- Rumen epithelium development is vital for sheep physiology.
- The molecular mechanisms of postnatal rumen development are poorly understood.
Purpose of the Study:
- To investigate the proteomic changes during postnatal sheep rumen development.
- To identify key molecular pathways and proteins involved in rumen epithelial growth.
Main Methods:
- Shotgun proteomics approach to analyze rumen epithelium tissue at different ages (0, 15, 30, 45, 60 days).
- Bioinformatics analyses including differential protein expression, subcellular localization, Gene Ontology (GO), and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis.
Main Results:
- Identified 4,523 proteins, with significant differentially expressed proteins (DEPs) observed across developmental stages.
- Early development (day 0-15) showed enrichment of mitochondrial proteins, while later stages showed nuclear protein enrichment.
- Key enriched pathways included mitochondrion biogenesis, ubiquitination, histone modifications, glutathione synthesis, and Wnt/Notch signaling.
Conclusions:
- Mitochondrial biogenesis is essential for initiating rumen epithelial development in sheep.
- Glutathione, Wnt, and Notch signaling pathways play significant roles in rumen epithelial growth.
- Ubiquitination and histone modifications are likely critical regulators of rumen epithelial development.
