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Transcriptome profile of livers from hepatocyte-specific Slc25a34 knockout mice on chow and fast-food diet

ABSTRACT: Transcriptome profile of livers from hepatocyte-specific Slc25a34 knockout mice on chow and fast-food diet

PROVIDER: PRJNA773383 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR16520779_1.fastq.gz	Fastqsanger.gz
	SRR16520779_2.fastq.gz	Fastqsanger.gz
	SRR16520780_1.fastq.gz	Fastqsanger.gz
	SRR16520780_2.fastq.gz	Fastqsanger.gz
	SRR16520781_1.fastq.gz	Fastqsanger.gz

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Project description:EGFR is a critical regulator of hepatocyte proliferation and liver regeneration. Our recent work indicated EGFR can also regulate lipid metabolism during liver regeneration after partial-hepatectomy. Based on these findings, we investigated role of EGFR in a mouse model of NAFLD utilizing a pharmacological inhibition strategy. C57BL6/J mice were fed chow-diet, or fast-food diet with/without EGFR inhibitor (Canertinib) for 2-months. EGFR inhibition completely prevented development of steatosis and liver injury in this model. In order to study if EGFR inhibition can reverse NAFLD progression, mice were fed fast-food diet for 5-months, with/without Canertinib-treatment for the last 5-weeks of the study. EGFR-inhibition remarkably decreased steatosis, liver injury, fibrosis and improved glucose tolerance. Microarray analysis revealed ~40% of genes altered by fast-food diet were differentially expressed after EGFR-inhibition, and thus, are potentially regulated by EGFR. Several genes and enzymes related to lipid metabolism (particularly fatty-acid synthesis and lipolysis), which were disrupted by fast-food diet, were found to be modulated by EGFR. Several crucial transcription factors that play a central role in regulating these lipid metabolism genes during NAFLD, including PPARγ, SREBF1, ChREBP and HNF4α, were also found to be modulated by EGFR. In fact, ChIP-analysis revealed PPARγ binding to several crucial lipid metabolisms genes (Fasn, Scd1 and Plin2) was drastically reduced by EGFR inhibition. Further upstream, EGFR-inhibition suppressed AKT signaling, which is known to control these transcription factors, including PPARγ and SREBF1, in NAFLD models. Lastly, the effect of EGFR in FFD-induced fatty-liver phenotype was not shared by receptor-tyrosine-kinase MET, as investigated using MET-KO mice. In-conclusion, our study revealed a role of EGFR in NAFLD and the potential of EGFR-inhibition as a treatment strategy for NAFLD. We used microarrays to detail the global programme of gene expression in liver of C57BL6/J mice fed fast-food diet mice treated with EGFR inhibitor (canertinib)

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Transcriptome profile of livers from hepatocyte-specific Slc25a34 knockout mice on chow and fast-food diet

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