PMID- 35304577 OWN - NLM STAT- MEDLINE DCOM- 20220405 LR - 20230308 IS - 2399-3642 (Electronic) IS - 2399-3642 (Linking) VI - 5 IP - 1 DP - 2022 Mar 18 TI - Acetyl-CoA-carboxylase 1 (ACC1) plays a critical role in glucagon secretion. PG - 238 LID - 10.1038/s42003-022-03170-w [doi] LID - 238 AB - Dysregulated glucagon secretion from pancreatic alpha-cells is a key feature of type-1 and type-2 diabetes (T1D and T2D), yet our mechanistic understanding of alpha-cell function is underdeveloped relative to insulin-secreting beta-cells. Here we show that the enzyme acetyl-CoA-carboxylase 1 (ACC1), which couples glucose metabolism to lipogenesis, plays a key role in the regulation of glucagon secretion. Pharmacological inhibition of ACC1 in mouse islets or alphaTC9 cells impaired glucagon secretion at low glucose (1 mmol/l). Likewise, deletion of ACC1 in alpha-cells in mice reduced glucagon secretion at low glucose in isolated islets, and in response to fasting or insulin-induced hypoglycaemia in vivo. Electrophysiological recordings identified impaired K(ATP) channel activity and P/Q- and L-type calcium currents in alpha-cells lacking ACC1, explaining the loss of glucose-sensing. ACC-dependent alterations in S-acylation of the K(ATP) channel subunit, Kir6.2, were identified by acyl-biotin exchange assays. Histological analysis identified that loss of ACC1 caused a reduction in alpha-cell area of the pancreas, glucagon content and individual alpha-cell size, further impairing secretory capacity. Loss of ACC1 also reduced the release of glucagon-like peptide 1 (GLP-1) in primary gastrointestinal crypts. Together, these data reveal a role for the ACC1-coupled pathway in proglucagon-expressing nutrient-responsive endocrine cell function and systemic glucose homeostasis. CI - (c) 2022. The Author(s). FAU - Veprik, Anna AU - Veprik A AUID- ORCID: 0000-0002-3904-7151 AD - Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK. AD - Novo Nordisk Research Centre Oxford, Oxford, UK. FAU - Denwood, Geoffrey AU - Denwood G AD - The Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK. FAU - Liu, Dong AU - Liu D AD - Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK. AD - Division of Systems Medicine, School of Medicine, University of Dundee, Dundee, Scotland, UK. FAU - Bany Bakar, Rula AU - Bany Bakar R AUID- ORCID: 0000-0002-5643-0195 AD - Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK. FAU - Morfin, Valentin AU - Morfin V AD - Division of Systems Medicine, School of Medicine, University of Dundee, Dundee, Scotland, UK. FAU - McHugh, Kara AU - McHugh K AUID- ORCID: 0000-0002-2629-986X AD - School of Life Sciences, University of Dundee, Dundee, Scotland, UK. FAU - Tebeka, Nchimunya N AU - Tebeka NN AUID- ORCID: 0000-0003-3916-6107 AD - Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK. AD - Division of Systems Medicine, School of Medicine, University of Dundee, Dundee, Scotland, UK. FAU - Vetterli, Laurene AU - Vetterli L AD - Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK. FAU - Yonova-Doing, Ekaterina AU - Yonova-Doing E AD - Novo Nordisk Research Centre Oxford, Oxford, UK. FAU - Gribble, Fiona AU - Gribble F AUID- ORCID: 0000-0002-4232-2898 AD - Metabolic Research Laboratories and MRC Metabolic Diseases Unit, Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge, UK. FAU - Reimann, Frank AU - Reimann F AUID- ORCID: 0000-0001-9399-6377 AD - Metabolic Research Laboratories and MRC Metabolic Diseases Unit, Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge, UK. FAU - Hoehn, Kyle L AU - Hoehn KL AUID- ORCID: 0000-0002-0214-3238 AD - School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia. FAU - Hemsley, Piers A AU - Hemsley PA AUID- ORCID: 0000-0003-2950-0634 AD - School of Life Sciences, University of Dundee, Dundee, Scotland, UK. AD - Cell and Molecular Sciences, The James Hutton Institute, Dundee, Scotland, UK. FAU - Ahnfelt-Ronne, Jonas AU - Ahnfelt-Ronne J AD - Department of Pathology and Imaging, Novo Nordisk A/S, Malov, Denmark. FAU - Rorsman, Patrik AU - Rorsman P AUID- ORCID: 0000-0001-7578-0767 AD - The Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK. FAU - Zhang, Quan AU - Zhang Q AUID- ORCID: 0000-0002-3626-4855 AD - The Oxford Centre for Diabetes, Endocrinology and Metabolism, University of Oxford, Oxford, UK. FAU - de Wet, Heidi AU - de Wet H AUID- ORCID: 0000-0002-9871-6909 AD - Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK. FAU - Cantley, James AU - Cantley J AUID- ORCID: 0000-0003-2509-1271 AD - Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK. jcantley001@dundee.ac.uk. AD - Division of Systems Medicine, School of Medicine, University of Dundee, Dundee, Scotland, UK. jcantley001@dundee.ac.uk. LA - eng GR - MC_UU_12012/3/MRC_/Medical Research Council/United Kingdom GR - MR/V011979/1/MRC_/Medical Research Council/United Kingdom GR - MR/T002107/1/MRC_/Medical Research Council/United Kingdom GR - BB/P020666/1/BB_/Biotechnology and Biological Sciences Research Council/United Kingdom GR - WT084210Z/07/Z/WT_/Wellcome Trust/United Kingdom GR - BB/T00875X/1/BB_/Biotechnology and Biological Sciences Research Council/United Kingdom GR - WT088357Z/09/Z/WT_/Wellcome Trust/United Kingdom GR - WT_/Wellcome Trust/United Kingdom PT - Journal Article DEP - 20220318 PL - England TA - Commun Biol JT - Communications biology JID - 101719179 RN - 72-89-9 (Acetyl Coenzyme A) RN - 9007-92-5 (Glucagon) RN - EC 6.4.1.2 (ACC1 protein, mouse) RN - EC 6.4.1.2 (Acetyl-CoA Carboxylase) RN - IY9XDZ35W2 (Glucose) SB - IM MH - Acetyl Coenzyme A/metabolism MH - Acetyl-CoA Carboxylase/metabolism MH - Animals MH - Glucagon MH - *Glucagon-Secreting Cells/metabolism MH - Glucose/metabolism MH - *Insulin-Secreting Cells/metabolism MH - Mice PMC - PMC8933412 COIS- The authors declare the following competing interests: K.H. is a co-founder of Continuum Biosciences, a company developing drugs for the treatment of metabolic diseases; K.H. is an Editorial Board Member for Communications Biology but was not involved in the editorial review of, nor the decision to publish this article. All other authors declare that there is no duality of interest associated with their contribution to this paper. EDAT- 2022/03/20 06:00 MHDA- 2022/04/06 06:00 PMCR- 2022/03/18 CRDT- 2022/03/19 05:31 PHST- 2020/09/03 00:00 [received] PHST- 2022/02/08 00:00 [accepted] PHST- 2022/03/19 05:31 [entrez] PHST- 2022/03/20 06:00 [pubmed] PHST- 2022/04/06 06:00 [medline] PHST- 2022/03/18 00:00 [pmc-release] AID - 10.1038/s42003-022-03170-w [pii] AID - 3170 [pii] AID - 10.1038/s42003-022-03170-w [doi] PST - epublish SO - Commun Biol. 2022 Mar 18;5(1):238. doi: 10.1038/s42003-022-03170-w.