PMID- 36097292 OWN - NLM STAT- MEDLINE DCOM- 20220928 LR - 20221119 IS - 1545-9985 (Electronic) IS - 1545-9993 (Print) IS - 1545-9985 (Linking) VI - 29 IP - 9 DP - 2022 Sep TI - Isoform-resolved mRNA profiling of ribosome load defines interplay of HIF and mTOR dysregulation in kidney cancer. PG - 871-880 LID - 10.1038/s41594-022-00819-2 [doi] AB - Hypoxia inducible factor (HIF) and mammalian target of rapamycin (mTOR) pathways orchestrate responses to oxygen and nutrient availability. These pathways are frequently dysregulated in cancer, but their interplay is poorly understood, in part because of difficulties in simultaneous measurement of global and mRNA-specific translation. Here, we describe a workflow for measurement of ribosome load of mRNAs resolved by their transcription start sites (TSSs). Its application to kidney cancer cells reveals extensive translational reprogramming by mTOR, strongly affecting many metabolic enzymes and pathways. By contrast, global effects of HIF on translation are limited, and we do not observe reported translational activation by HIF2A. In contrast, HIF-dependent alterations in TSS usage are associated with robust changes in translational efficiency in a subset of genes. Analyses of the interplay of HIF and mTOR reveal that specific classes of HIF1A and HIF2A transcriptional target gene manifest different sensitivity to mTOR, in a manner that supports combined use of HIF2A and mTOR inhibitors in treatment of kidney cancer. CI - (c) 2022. The Author(s). FAU - Sugimoto, Yoichiro AU - Sugimoto Y AD - The Francis Crick Institute, London, UK. FAU - Ratcliffe, Peter J AU - Ratcliffe PJ AUID- ORCID: 0000-0002-2853-806X AD - The Francis Crick Institute, London, UK. peter.ratcliffe@crick.ac.uk. AD - Ludwig Institute for Cancer Research, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK. peter.ratcliffe@crick.ac.uk. LA - eng GR - CC2092/CRUK_/Cancer Research UK/United Kingdom GR - CC2092/MRC_/Medical Research Council/United Kingdom GR - CC2092/WT_/Wellcome Trust/United Kingdom GR - 106241/Z/14/Z/WT_/Wellcome Trust/United Kingdom GR - WT_/Wellcome Trust/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220912 PL - United States TA - Nat Struct Mol Biol JT - Nature structural & molecular biology JID - 101186374 RN - 0 (Basic Helix-Loop-Helix Transcription Factors) RN - 0 (Protein Isoforms) RN - 0 (RNA, Messenger) RN - EC 2.7.1.1 (MTOR protein, human) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - S88TT14065 (Oxygen) SB - IM MH - Basic Helix-Loop-Helix Transcription Factors/*metabolism MH - Humans MH - *Kidney Neoplasms/genetics MH - Oxygen MH - Protein Isoforms MH - RNA, Messenger/genetics/metabolism MH - Ribosomes/metabolism MH - *TOR Serine-Threonine Kinases PMC - PMC9507966 COIS- P. J. R. is a scientific co-founder and equity holder in ReOx Ltd. He is a non-executive director of Immunocore Ltd and holds a consultancy with IDP Discovery Pharma SL. Y. S. declares no competing interests. EDAT- 2022/09/14 06:00 MHDA- 2022/09/28 06:00 PMCR- 2022/09/12 CRDT- 2022/09/13 00:13 PHST- 2021/07/06 00:00 [received] PHST- 2022/07/15 00:00 [accepted] PHST- 2022/09/14 06:00 [pubmed] PHST- 2022/09/28 06:00 [medline] PHST- 2022/09/13 00:13 [entrez] PHST- 2022/09/12 00:00 [pmc-release] AID - 10.1038/s41594-022-00819-2 [pii] AID - 819 [pii] AID - 10.1038/s41594-022-00819-2 [doi] PST - ppublish SO - Nat Struct Mol Biol. 2022 Sep;29(9):871-880. doi: 10.1038/s41594-022-00819-2. Epub 2022 Sep 12.