PMID- 30076527 OWN - NLM STAT- MEDLINE DCOM- 20190806 LR - 20201119 IS - 1559-1182 (Electronic) IS - 0893-7648 (Print) IS - 0893-7648 (Linking) VI - 56 IP - 4 DP - 2019 Apr TI - Modulation of Glucose Metabolism in Hippocampal Neurons by Adiponectin and Resistin. PG - 3024-3037 LID - 10.1007/s12035-018-1271-x [doi] AB - Obese individuals exhibit altered circulating levels of adipokines, the proteins secreted by adipose tissue to mediate tissue cross-talk and regulate appetite and energy expenditure. The effect of adipokines on neuronal glucose metabolism, however, remains largely unknown. Two adipokines produced in adipose tissue, adiponectin and resistin, can gain access to the central nervous system (CNS), and their levels in the cerebrospinal fluid (CSF) are altered in obesity. We hypothesized that dysregulated adipokines in the CNS may underlie the reported link between obesity and higher risk of neurological disorders like Alzheimer's disease (AD), by affecting glucose metabolism in hippocampal neurons. Using cultured primary rat hippocampal neurons and mouse hippocampus slices, we show that recombinant adiponectin and resistin, at a concentration found in the CSF, have opposing effects on glucose metabolism. Adiponectin enhanced glucose uptake, glycolytic rate, and ATP production through an AMP-activated protein kinase (AMPK)-dependent mechanism; inhibiting AMPK abrogated the effects of adiponectin on glucose uptake and utilization. In contrast, resistin reduced glucose uptake, glycolytic rate, and ATP production, in part, by inhibiting hexokinase (HK) activity in hippocampal neurons. These data suggest that altered CNS levels of adipokines in the context of obesity may impact glucose metabolism in hippocampal neurons, brain region involved in learning and memory functions. FAU - Cisternas, Pedro AU - Cisternas P AD - Centro de Envejecimiento y Regeneracion (CARE-UC), Departamento de Biologia Celular y Molecular, Facultad de Ciencias Biologicas, Pontificia Universidad Catolica de Chile, Alameda Bernardo O'Higgins 340, P. O. Box 114-D, Santiago, Chile. pcisternas@bio.puc.cl. FAU - Martinez, Milka AU - Martinez M AD - Centro de Envejecimiento y Regeneracion (CARE-UC), Departamento de Biologia Celular y Molecular, Facultad de Ciencias Biologicas, Pontificia Universidad Catolica de Chile, Alameda Bernardo O'Higgins 340, P. O. Box 114-D, Santiago, Chile. FAU - Ahima, Rexford S AU - Ahima RS AD - Division of Endocrinology, Diabetes & Metabolism, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA. FAU - William Wong, G AU - William Wong G AD - Department of Physiology and Center for Metabolism and Obesity Research, Johns Hopkins University School of Medicine, Baltimore, MD, USA. FAU - Inestrosa, Nibaldo C AU - Inestrosa NC AUID- ORCID: 0000-0003-3118-9726 AD - Centro de Envejecimiento y Regeneracion (CARE-UC), Departamento de Biologia Celular y Molecular, Facultad de Ciencias Biologicas, Pontificia Universidad Catolica de Chile, Alameda Bernardo O'Higgins 340, P. O. Box 114-D, Santiago, Chile. ninestrosa@bio.puc.cl. AD - Centre for Healthy Brain Ageing, School of Psychiatry, Faculty of Medicine, University of New South Wales, Sydney, Australia. ninestrosa@bio.puc.cl. AD - Centro de Excelencia en Biomedicina de Magallanes (CEBIMA), Universidad de Magallanes, Punta Arenas, Chile. ninestrosa@bio.puc.cl. LA - eng GR - R01 DK084171/DK/NIDDK NIH HHS/United States PT - Journal Article DEP - 20180803 PL - United States TA - Mol Neurobiol JT - Molecular neurobiology JID - 8900963 RN - 0 (Adiponectin) RN - 0 (Resistin) RN - IY9XDZ35W2 (Glucose) MH - Adiponectin/*pharmacology MH - Animals MH - Cells, Cultured MH - Glucose/*metabolism MH - Glycolysis/drug effects MH - Hippocampus/*cytology/*metabolism MH - Male MH - Mice, Inbred C57BL MH - Models, Biological MH - Neurons/drug effects/*metabolism MH - Rats, Sprague-Dawley MH - Resistin/*pharmacology PMC - PMC7672532 MID - NIHMS1645631 OTO - NOTNLM OT - Adiponectin OT - Brain functions OT - Glucose metabolism OT - Hippocampus OT - Obesity OT - Resistin COIS- Conflict of Interest The authors declare that they have no conflicts of interest. EDAT- 2018/08/05 06:00 MHDA- 2019/08/07 06:00 PMCR- 2020/11/18 CRDT- 2018/08/05 06:00 PHST- 2018/05/24 00:00 [received] PHST- 2018/07/19 00:00 [accepted] PHST- 2018/08/05 06:00 [pubmed] PHST- 2019/08/07 06:00 [medline] PHST- 2018/08/05 06:00 [entrez] PHST- 2020/11/18 00:00 [pmc-release] AID - 10.1007/s12035-018-1271-x [pii] AID - 10.1007/s12035-018-1271-x [doi] PST - ppublish SO - Mol Neurobiol. 2019 Apr;56(4):3024-3037. doi: 10.1007/s12035-018-1271-x. Epub 2018 Aug 3.