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Series GSE224743 Query DataSets for GSE224743
Status Public on Nov 28, 2023
Title Contrasting effects of whole-body and hepatocyte-specific deletion of the RNA polymerase III repressor Maf1 in the mouse [RNA-Seq]
Organism Mus musculus
Experiment type Expression profiling by high throughput sequencing
Summary MAF1 is a nutrient-sensitive, TORC1-regulated repressor of RNA polymerase III (Pol III). MAF1 downregulation leads to increased lipogenesis in Drosophila melanogaster, Caenorhabditis elegans, and mice. However, Maf1−/− mice are lean as increased lipogenesis is counterbalanced by futile pre-tRNA synthesis and degradation, resulting in increased energy expenditure. We compared Chow-fed Maf1−/− mice with Chow- or High Fat (HF)-fed Maf1hep−/− mice that lack MAF1 specifically in hepatocytes. Unlike Maf1−/− mice, Maf1hep−/− mice become heavier and fattier than control mice with old age and much earlier under a HF diet. Liver ChIPseq, RNAseq and proteomics analyses indicate increased Pol III occupancy at Pol III genes, very few differences in mRNA accumulation, and protein accumulation changes consistent with increased lipogenesis. Futile pretRNA synthesis and degradation in the liver, as likely occurs in Maf1hep−/− mice, thus seems insufficient to counteract increased lipogenesis. Indeed, RNAseq and metabolite profiling indicate that liver phenotypes of Maf1−/− mice are strongly influenced by systemic inter-organ communication. Among common changes in the three phenotypically distinct cohorts, Angiogenin downregulation is likely linked to increased Pol III occupancy of tRNA genes in the Angiogenin promoter.
Overall design Three mouse cohorts, with KO and CTRL samples : Maf1-/- on CHOW diet (5 KO, 7 CTRL), Maf1Hep-/- on CHOW diet (4 KO, 4 CTRL) and Maf1Hep-/- on High Fat diet (4 KO 5 CTRL).
Web link
Contributor(s) Willemin G, Mange F, Praz V, Lorrain S, Cousin P, Roger C, Willis IM, Hernandez N
Citation(s) 38143800
Submission date Feb 07, 2023
Last update date Dec 29, 2023
Contact name Gilles Willemin
Organization name Université de Lausanne
Department Center For Integrative Genomics
Lab Hernandez
Street address Génopode
City Lausanne
State/province VD
ZIP/Postal code 1015
Country Switzerland
Platforms (1)
GPL17021 Illumina HiSeq 2500 (Mus musculus)
Samples (29)
GSM7030675 CF-tCT1
GSM7030676 CF-tCT2
GSM7030677 CF-tCT3
This SubSeries is part of SuperSeries:
GSE224917 Contrasting effects of whole-body and hepatocyte-specific deletion of the RNA polymerase III repressor Maf1 in the mouse
BioProject PRJNA932334

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Supplementary file Size Download File type/resource
GSE224743_RNAseq_rsem_counts_table.xlsx 2.2 Mb (ftp)(http) XLSX
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Processed data are available on Series record

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