Journal
BRITISH POULTRY SCIENCE
Volume 57, Issue 5, Pages 628-635Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/00071668.2016.1201199
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Funding
- NSFC-Guangdong Joint Fund [U0931004]
- Special Fund for Agro-scientific Research in the Public Interest [201003011]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
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The fat mass and obesity associated (FTO) gene, which encodes a demethylase of m(6)A, has been reported to respond to lipopolysaccharide (LPS) and to serve as a link between inflammation and metabolic responses. The objective of this study was to determine whether LPS-induced changes in the expression of FTO and metabolic genes are associated with alterations of m(6)A in relevant mRNAs.LPS challenge significantly decreased hepatic mRNA expression of carnitine palmitoyl transferase 1 (CPT1) and CPT2, which coincided with a tendency of higher triglyceride accumulation in the liver.LPS significantly down-regulated the full length cFTO1, yet up-regulated the truncated cFTO4 protein in the liver nuclear extracts.Nuclear protein content of cFTO4 in the liver was negatively correlated with the mRNA abundances of CPT1 (r=0.629) and CPT2 (r=0.622).Methylated RNA immunoprecipitation analysis revealed that the m(6)A level around the translation start site of CPT1 was markably decreased in the liver of LPS-treated chickens.These results indicate that LPS-induced changes in FTO protein expression are associated with alteration of mRNA m(6)A modification in chicken liver.
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