Data/hora: 16/06/2024 01:27:09

Biblioteca(s): | Embrapa Agricultura Digital.
Data corrente: | 17/01/2017
Data da última atualização: | 22/02/2017
Autoria: | CESAR, A. S. M.; REGITANO, L. C. de A.; POLETI, M. D.; ANDRADE, S. C. da S.; TIZIOTO, P. C.; OLIVEIRA, P. S. N. de; FELICIO, A. M.; NASCIMENTO, M. L. do; CHAVES, A. S.; LANNA, D. P. D.; TULLIO, R. R.; NASSU, R. T.; KOLTES, J. E.; FRITZ-WATERS, E.; MOURÃO, G. B.; ZERLOTINI NETO, A.; REECY, J. M.; COUTINHO, L. L.
Afiliação: | ALINE SILVA MELLO CESAR, USP, Iowa State University; LUCIANA CORREIA DE ALMEIDA REGITANO, CPPSE; MIRELE DAIANA POLETI, USP; SÓNIA CRISTINA DA SILVA ANDRADE, USP; POLYANA CRISTINE TIZIOTO, CPPSE; PRISCILA SILVA NEUBERN DE OLIVEIRA, CPPSE; ANDREZZA MARIA FELÍCIO, USP; MICHELE LOPES DO NASCIMENTO, USP; AMALIA SATURNINO CHAVES, USP; DANTE PAZZANESE DUARTE LANNA, USP; RYMER RAMIZ TULLIO, CPPSE; RENATA TIEKO NASSU, CPPSE; JAMES EUGENE KOLTES, University of Arkansas; ERIC FRITZ-WATERS, University of Arkansas; GERSON BARRETO MOURÃO, USP; ADHEMAR ZERLOTINI NETO, CNPTIA; JAMES M. REECY, Iowa State University; LUIZ LEHMANN COUTINHO, USP.
Título: | Differences in the skeletal muscle transcriptome profile associated with extreme values of fatty acids content.
Ano de publicação: | 2016
Fonte/Imprenta: | BMC Genomics, London, v. 17, p. 1-16, 2016.
DOI: | 10.1186/s12864-016-3306-x
Idioma: | Inglês
Conteúdo: | Background: Lipids are a class of molecules that play an important role in cellular structure and metabolism in all cell types. In the last few decades, it has been reported that long-chain fatty acids (FAs) are involved in several biological functions from transcriptional regulation to physiological processes. Several fatty acids have been both positively and negatively implicated in different biological processes in skeletal muscle and other tissues. To gain insight into biological processes associated with fatty acid content in skeletal muscle, the aim of the present study was to identify differentially expressed genes (DEGs) and functional pathways related to gene expression regulation associated with FA content in cattle. Results: Skeletal muscle transcriptome analysis of 164 Nellore steers revealed no differentially expressed genes (DEGs, FDR 10%) for samples with extreme values for linoleic acid (LA) or stearic acid (SA), and only a few DEGs for eicosapentaenoic acid (EPA, 5 DEGs), docosahexaenoic acid (DHA, 4 DEGs) and palmitic acid (PA, 123 DEGs), while large numbers of DEGs were associated with oleic acid (OA, 1134 DEGs) and conjugated linoleic acid cis9 trans11 (CLA-c9t11, 872 DEGs). Functional annotation and functional enrichment from OA DEGs identified important genes, canonical pathways and upstream regulators such as SCD, PLIN5, UCP3, CPT1, CPT1B, oxidative phosphorylation mitochondrial dysfunction, PPARGC1A, and FOXO1. Two important genes associated with lipid metabolism, gene expression and cancer were identified as DEGs between animals with high and low CLA-c9t11, specifically, epidermal growth factor receptor (EGFR) and RNPS. Conclusion: Only two out of seven classes of molecules of FA studied were associated with large changes in the expression profile of skeletal muscle. OA and CLA-c9t11 content had significant effects on the expression level of genes related to important biological processes associated with oxidative phosphorylation, and cell growth, survival, and migration. These results contribute to our understanding of how some FAs modulate metabolism and may have protective health function.
Palavras-Chave: | Global oxidative metabolism.
Thesagro: | Bos Indicus.
Thesaurus Nal: | Cattle; Gene expression; Human Health; Lipids; Sequence analysis; Zebu.
Categoria do assunto: | --
Registro original: | Embrapa Agricultura Digital (CNPTIA)
Exemplares: | CNPTIA - (18977-1) - UPC - AP - DD -  -  -  - DIS