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Sprenger RR, Hermansson M, Neess D, Becciolini LS, Sørensen SB, Fagerberg R, Ecker J, Liebisch G, Jensen ON, Vance DE, Færgeman NJ, Klemm RW, Ejsing CS. Lipid molecular timeline profiling reveals diurnal crosstalk between the liver and circulation. Cell Rep 2021; 34:108710. [PMID: 33535053 DOI: 10.1016/j.celrep.2021.108710] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/29/2020] [Accepted: 01/08/2021] [Indexed: 12/18/2022] Open
Abstract
Diurnal regulation of whole-body lipid metabolism plays a vital role in metabolic health. Although changes in lipid levels across the diurnal cycle have been investigated, the system-wide molecular responses to both short-acting fasting-feeding transitions and longer-timescale circadian rhythms have not been explored in parallel. Here, we perform time-series multi-omics analyses of liver and plasma revealing that the majority of molecular oscillations are entrained by adaptations to fasting, food intake, and the postprandial state. By developing algorithms for lipid structure enrichment analysis and lipid molecular crosstalk between tissues, we find that the hepatic phosphatidylethanolamine (PE) methylation pathway is diurnally regulated, giving rise to two pools of oscillating phosphatidylcholine (PC) molecules in the circulation, which are coupled to secretion of either very low-density lipoprotein (VLDL) or high-density lipoprotein (HDL) particles. Our work demonstrates that lipid molecular timeline profiling across tissues is key to disentangling complex metabolic processes and provides a critical resource for the study of whole-body lipid metabolism.
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Affiliation(s)
- Richard R Sprenger
- Department of Biochemistry and Molecular Biology, VILLUM Center for Bioanalytical Sciences, University of Southern Denmark, Odense, Denmark
| | - Martin Hermansson
- Department of Biochemistry and Molecular Biology, VILLUM Center for Bioanalytical Sciences, University of Southern Denmark, Odense, Denmark
| | - Ditte Neess
- Department of Biochemistry and Molecular Biology, VILLUM Center for Bioanalytical Sciences, University of Southern Denmark, Odense, Denmark
| | - Lena Sokol Becciolini
- Department of Biochemistry and Molecular Biology, VILLUM Center for Bioanalytical Sciences, University of Southern Denmark, Odense, Denmark
| | - Signe Bek Sørensen
- Department of Biochemistry and Molecular Biology, VILLUM Center for Bioanalytical Sciences, University of Southern Denmark, Odense, Denmark
| | - Rolf Fagerberg
- Department of Mathematics and Computer Science, University of Southern Denmark, Odense, Denmark
| | - Josef Ecker
- ZIEL-Institute for Food & Health, Research Group Lipid Metabolism, Technical University of Munich, Freising, Germany
| | - Gerhard Liebisch
- Institute of Clinical Chemistry and Laboratory Medicine, Regensburg University Hospital, Regensburg, Germany
| | - Ole N Jensen
- Department of Biochemistry and Molecular Biology, VILLUM Center for Bioanalytical Sciences, University of Southern Denmark, Odense, Denmark
| | - Dennis E Vance
- Group on Molecular and Cell Biology of Lipids, University of Alberta, Edmonton, AB, Canada
| | - Nils J Færgeman
- Department of Biochemistry and Molecular Biology, VILLUM Center for Bioanalytical Sciences, University of Southern Denmark, Odense, Denmark
| | - Robin W Klemm
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK
| | - Christer S Ejsing
- Department of Biochemistry and Molecular Biology, VILLUM Center for Bioanalytical Sciences, University of Southern Denmark, Odense, Denmark; Cell Biology and Biophysics Unit, European Molecular Biology Laboratory, Heidelberg, Germany.
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2
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Sustarsic EG, Ma T, Lynes MD, Larsen M, Karavaeva I, Havelund JF, Nielsen CH, Jedrychowski MP, Moreno-Torres M, Lundh M, Plucinska K, Jespersen NZ, Grevengoed TJ, Kramar B, Peics J, Hansen JB, Shamsi F, Forss I, Neess D, Keipert S, Wang J, Stohlmann K, Brandslund I, Christensen C, Jørgensen ME, Linneberg A, Pedersen O, Kiebish MA, Qvortrup K, Han X, Pedersen BK, Jastroch M, Mandrup S, Kjær A, Gygi SP, Hansen T, Gillum MP, Grarup N, Emanuelli B, Nielsen S, Scheele C, Tseng YH, Færgeman NJ, Gerhart-Hines Z. Cardiolipin Synthesis in Brown and Beige Fat Mitochondria Is Essential for Systemic Energy Homeostasis. Cell Metab 2018; 28:159-174.e11. [PMID: 29861389 PMCID: PMC6038052 DOI: 10.1016/j.cmet.2018.05.003] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 02/20/2018] [Accepted: 05/03/2018] [Indexed: 12/17/2022]
Abstract
Activation of energy expenditure in thermogenic fat is a promising strategy to improve metabolic health, yet the dynamic processes that evoke this response are poorly understood. Here we show that synthesis of the mitochondrial phospholipid cardiolipin is indispensable for stimulating and sustaining thermogenic fat function. Cardiolipin biosynthesis is robustly induced in brown and beige adipose upon cold exposure. Mimicking this response through overexpression of cardiolipin synthase (Crls1) enhances energy consumption in mouse and human adipocytes. Crls1 deficiency in thermogenic adipocytes diminishes inducible mitochondrial uncoupling and elicits a nuclear transcriptional response through endoplasmic reticulum stress-mediated retrograde communication. Cardiolipin depletion in brown and beige fat abolishes adipose thermogenesis and glucose uptake, which renders animals insulin resistant. We further identify a rare human CRLS1 variant associated with insulin resistance and show that adipose CRLS1 levels positively correlate with insulin sensitivity. Thus, adipose cardiolipin has a powerful impact on organismal energy homeostasis through thermogenic fat bioenergetics.
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Affiliation(s)
- Elahu G Sustarsic
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen 2200, Denmark; Department of Biomedical Sciences, University of Copenhagen, Copenhagen 2200, Denmark
| | - Tao Ma
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen 2200, Denmark; Department of Biomedical Sciences, University of Copenhagen, Copenhagen 2200, Denmark
| | - Matthew D Lynes
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215, USA
| | - Michael Larsen
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen 2200, Denmark
| | - Iuliia Karavaeva
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen 2200, Denmark; Department of Biomedical Sciences, University of Copenhagen, Copenhagen 2200, Denmark
| | - Jesper F Havelund
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense 5230, Denmark
| | - Carsten H Nielsen
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen 2200, Denmark; Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet, Copenhagen 2200, Denmark
| | | | - Marta Moreno-Torres
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense 5230, Denmark
| | - Morten Lundh
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen 2200, Denmark
| | - Kaja Plucinska
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen 2200, Denmark
| | - Naja Z Jespersen
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen 2200, Denmark; Centre of Inflammation and Metabolism and Centre for Physical Activity Research, Rigshospitalet, University Hospital of Copenhagen, Copenhagen 2200, Denmark
| | - Trisha J Grevengoed
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen 2200, Denmark
| | - Barbara Kramar
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen 2200, Denmark
| | - Julia Peics
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen 2200, Denmark; Department of Biomedical Sciences, University of Copenhagen, Copenhagen 2200, Denmark
| | - Jakob B Hansen
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen 2200, Denmark; Department of Biomedical Sciences, University of Copenhagen, Copenhagen 2200, Denmark
| | - Farnaz Shamsi
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215, USA
| | - Isabel Forss
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense 5230, Denmark
| | - Ditte Neess
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense 5230, Denmark
| | - Susanne Keipert
- Helmholtz Diabetes Center and German Diabetes Center (DZD), Helmholtz Zentrum München, Neuherberg 85764, Germany
| | - Jianing Wang
- Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Katharina Stohlmann
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen 2200, Denmark
| | - Ivan Brandslund
- Lillebaelt Hospital, Vejle 7100, Denmark; Institute of Regional Health Research, University of Southern Denmark, Odense 5230, Denmark
| | | | - Marit E Jørgensen
- Steno Diabetes Center, Gentofte 2820, Denmark; National Institute of Public Health, Southern Denmark University, Copenhagen 1353, Denmark
| | - Allan Linneberg
- Research Center for Prevention and Health, Glostrup 2600, Denmark; Center for Clinical Research and Prevention, Bispebjerg and Frederiksberg Hospital, Copenhagen, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen 2200, Denmark
| | - Oluf Pedersen
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen 2200, Denmark
| | | | - Klaus Qvortrup
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen 2200, Denmark
| | - Xianlin Han
- Barshop Institute for Longevity and Aging Studies, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
| | - Bente Klarlund Pedersen
- Centre of Inflammation and Metabolism and Centre for Physical Activity Research, Rigshospitalet, University Hospital of Copenhagen, Copenhagen 2200, Denmark
| | - Martin Jastroch
- Helmholtz Diabetes Center and German Diabetes Center (DZD), Helmholtz Zentrum München, Neuherberg 85764, Germany
| | - Susanne Mandrup
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense 5230, Denmark
| | - Andreas Kjær
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen 2200, Denmark; Department of Clinical Physiology, Nuclear Medicine & PET and Cluster for Molecular Imaging, Rigshospitalet, Copenhagen 2200, Denmark
| | - Steven P Gygi
- Department of Cell Biology, Harvard Medical School, Boston, MA 02115, USA
| | - Torben Hansen
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen 2200, Denmark
| | - Matthew P Gillum
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen 2200, Denmark
| | - Niels Grarup
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen 2200, Denmark
| | - Brice Emanuelli
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen 2200, Denmark
| | - Søren Nielsen
- Centre of Inflammation and Metabolism and Centre for Physical Activity Research, Rigshospitalet, University Hospital of Copenhagen, Copenhagen 2200, Denmark
| | - Camilla Scheele
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen 2200, Denmark; Centre of Inflammation and Metabolism and Centre for Physical Activity Research, Rigshospitalet, University Hospital of Copenhagen, Copenhagen 2200, Denmark
| | - Yu-Hua Tseng
- Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, MA 02215, USA
| | - Nils J Færgeman
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense 5230, Denmark
| | - Zachary Gerhart-Hines
- Novo Nordisk Foundation Center for Basic Metabolic Research, University of Copenhagen, Copenhagen 2200, Denmark; Department of Biomedical Sciences, University of Copenhagen, Copenhagen 2200, Denmark.
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Kruse V, Neess D, Færgeman NJ. The Significance of Epidermal Lipid Metabolism in Whole-Body Physiology. Trends Endocrinol Metab 2017; 28:669-683. [PMID: 28668301 DOI: 10.1016/j.tem.2017.06.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Revised: 06/03/2017] [Accepted: 06/06/2017] [Indexed: 12/12/2022]
Abstract
The skin is the largest sensory organ of the human body. The skin not only prevents loss of water and other components of the body, but also is involved in regulation of body temperature and serves as an essential barrier, protecting mammals from both routine and extreme environments. Given the importance of the skin in temperature regulation, it is surprising that adaptive alterations in skin functions and morphology only vaguely have been associated with systemic physiological responses. Despite that impaired lipid metabolism in the skin often impairs the epidermal permeability barrier and insulation properties of the skin, its role in regulating systemic physiology and metabolism is yet to be recognized.
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Affiliation(s)
- Vibeke Kruse
- Villum Center for Bioanalytical Sciences, Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense M, Denmark
| | - Ditte Neess
- Villum Center for Bioanalytical Sciences, Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense M, Denmark
| | - Nils J Færgeman
- Villum Center for Bioanalytical Sciences, Department of Biochemistry and Molecular Biology, University of Southern Denmark, Odense M, Denmark.
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4
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Ferreira NS, Engelsby H, Neess D, Kelly SL, Volpert G, Merrill AH, Futerman AH, Færgeman NJ. Regulation of very-long acyl chain ceramide synthesis by acyl-CoA-binding protein. J Biol Chem 2017; 292:7588-7597. [PMID: 28320857 DOI: 10.1074/jbc.m117.785345] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Indexed: 11/06/2022] Open
Abstract
Ceramide and more complex sphingolipids constitute a diverse group of lipids that serve important roles as structural entities of biological membranes and as regulators of cellular growth, differentiation, and development. Thus, ceramides are vital players in numerous diseases including metabolic and cardiovascular diseases, as well as neurological disorders. Here we show that acyl-coenzyme A-binding protein (ACBP) potently facilitates very-long acyl chain ceramide synthesis. ACBP increases the activity of ceramide synthase 2 (CerS2) by more than 2-fold and CerS3 activity by 7-fold. ACBP binds very-long-chain acyl-CoA esters, which is required for its ability to stimulate CerS activity. We also show that high-speed liver cytosol from wild-type mice activates CerS3 activity, whereas cytosol from ACBP knock-out mice does not. Consistently, CerS2 and CerS3 activities are significantly reduced in the testes of ACBP-/- mice, concomitant with a significant reduction in long- and very-long-chain ceramide levels. Importantly, we show that ACBP interacts with CerS2 and CerS3. Our data uncover a novel mode of regulation of very-long acyl chain ceramide synthesis by ACBP, which we anticipate is of crucial importance in understanding the regulation of ceramide metabolism in pathogenesis.
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Affiliation(s)
- Natalia Santos Ferreira
- From the Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Hanne Engelsby
- the Villum Center for Bioanalytical Sciences, Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark, and
| | - Ditte Neess
- the Villum Center for Bioanalytical Sciences, Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark, and
| | - Samuel L Kelly
- the School of Biology and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332-0230
| | - Giora Volpert
- From the Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Alfred H Merrill
- the School of Biology and Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332-0230
| | - Anthony H Futerman
- From the Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Nils J Færgeman
- the Villum Center for Bioanalytical Sciences, Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark, and
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5
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Gallego SF, Sprenger RR, Neess D, Pauling JK, Færgeman NJ, Ejsing CS. Quantitative lipidomics reveals age-dependent perturbations of whole-body lipid metabolism in ACBP deficient mice. Biochim Biophys Acta Mol Cell Biol Lipids 2017; 1862:145-155. [DOI: 10.1016/j.bbalip.2016.10.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 10/06/2016] [Accepted: 10/28/2016] [Indexed: 01/08/2023]
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6
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Bek S, Neess D, Dixen K, Bloksgaard M, Marcher AB, Chemnitz J, Færgeman NJ, Mandrup S. Compromised epidermal barrier stimulates Harderian gland activity and hypertrophy in ACBP-/- mice. J Lipid Res 2015; 56:1738-46. [PMID: 26142722 DOI: 10.1194/jlr.m060780] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Indexed: 11/20/2022] Open
Abstract
Acyl-CoA binding protein (ACBP) is a small, ubiquitously expressed intracellular protein that binds C14-C22 acyl-CoA esters with very high affinity and specificity. We have recently shown that targeted disruption of the Acbp gene leads to a compromised epidermal barrier and that this causes delayed adaptation to weaning, including the induction of the hepatic lipogenic and cholesterogenic gene programs. Here we show that ACBP is highly expressed in the Harderian gland, a gland that is located behind the eyeball of rodents and involved in the production of fur lipids and lipids used for lubrication of the eye lid. We show that disruption of the Acbp gene leads to a significant enlargement of this gland with hypertrophy of the acinar cells and increased de novo synthesis of monoalkyl diacylglycerol, the main lipid species produced by the gland. Mice with conditional targeting of the Acbp gene in the epidermis recapitulate this phenotype, whereas generation of an artificial epidermal barrier during gland development reverses the phenotype. Our findings indicate that the Harderian gland is activated by the compromised epidermal barrier as an adaptive and protective mechanism to overcome the barrier defect.
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Affiliation(s)
- Signe Bek
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Ditte Neess
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Karen Dixen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Maria Bloksgaard
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Ann-Britt Marcher
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - John Chemnitz
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Nils J Færgeman
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Susanne Mandrup
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
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7
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Neess D, Bek S, Engelsby H, Gallego SF, Færgeman NJ. Long-chain acyl-CoA esters in metabolism and signaling: Role of acyl-CoA binding proteins. Prog Lipid Res 2015; 59:1-25. [PMID: 25898985 DOI: 10.1016/j.plipres.2015.04.001] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 03/11/2015] [Accepted: 04/09/2015] [Indexed: 02/03/2023]
Abstract
Long-chain fatty acyl-CoA esters are key intermediates in numerous lipid metabolic pathways, and recognized as important cellular signaling molecules. The intracellular flux and regulatory properties of acyl-CoA esters have been proposed to be coordinated by acyl-CoA-binding domain containing proteins (ACBDs). The ACBDs, which comprise a highly conserved multigene family of intracellular lipid-binding proteins, are found in all eukaryotes and ubiquitously expressed in all metazoan tissues, with distinct expression patterns for individual ACBDs. The ACBDs are involved in numerous intracellular processes including fatty acid-, glycerolipid- and glycerophospholipid biosynthesis, β-oxidation, cellular differentiation and proliferation as well as in the regulation of numerous enzyme activities. Little is known about the specific roles of the ACBDs in the regulation of these processes, however, recent studies have gained further insights into their in vivo functions and provided further evidence for ACBD-specific functions in cellular signaling and lipid metabolic pathways. This review summarizes the structural and functional properties of the various ACBDs, with special emphasis on the function of ACBD1, commonly known as ACBP.
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Affiliation(s)
- Ditte Neess
- Villum Center for Bioanalytical Sciences, Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Signe Bek
- Villum Center for Bioanalytical Sciences, Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Hanne Engelsby
- Villum Center for Bioanalytical Sciences, Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Sandra F Gallego
- Villum Center for Bioanalytical Sciences, Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Nils J Færgeman
- Villum Center for Bioanalytical Sciences, Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense M, Denmark.
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Bouyakdan K, Taïb B, Budry L, Zhao S, Rodaros D, Neess D, Mandrup S, Faergeman NJ, Alquier T. A novel role for central ACBP/DBI as a regulator of long-chain fatty acid metabolism in astrocytes. J Neurochem 2015; 133:253-65. [PMID: 25598214 DOI: 10.1111/jnc.13035] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 12/15/2014] [Accepted: 01/08/2015] [Indexed: 12/29/2022]
Abstract
Acyl-CoA-binding protein (ACBP) is a ubiquitously expressed protein that binds intracellular acyl-CoA esters. Several studies have suggested that ACBP acts as an acyl-CoA pool former and regulates long-chain fatty acids (LCFA) metabolism in peripheral tissues. In the brain, ACBP is known as Diazepam-Binding Inhibitor, a secreted peptide acting as an allosteric modulator of the GABAA receptor. However, its role in central LCFA metabolism remains unknown. In the present study, we investigated ACBP cellular expression, ACBP regulation of LCFA intracellular metabolism, FA profile, and FA metabolism-related gene expression using ACBP-deficient and control mice. ACBP was mainly found in astrocytes with high expression levels in the mediobasal hypothalamus. We demonstrate that ACBP deficiency alters the central LCFA-CoA profile and impairs unsaturated (oleate, linolenate) but not saturated (palmitate, stearate) LCFA metabolic fluxes in hypothalamic slices and astrocyte cultures. In addition, lack of ACBP differently affects the expression of genes involved in FA metabolism in cortical versus hypothalamic astrocytes. Finally, ACBP deficiency increases FA content and impairs their release in response to palmitate in hypothalamic astrocytes. Collectively, these findings reveal for the first time that central ACBP acts as a regulator of LCFA intracellular metabolism in astrocytes. Acyl-CoA-binding protein (ACBP) or diazepam-binding inhibitor is a secreted peptide acting centrally as a GABAA allosteric modulator. Using brain slices, cortical, and hypothalamic astrocyte cultures from ACBP KO mice, we demonstrate that ACBP mainly localizes in astrocytes and regulates unsaturated but not saturated long-chain fatty acids (LCFA) metabolism. In addition, ACBP deficiency alters FA metabolism-related genes and results in intracellular FA accumulation while affecting their release. Our results support a novel role for ACBP in brain lipid metabolism. FA, fatty acids; KO, knockout; PL, phospholipids; TAG, triacylglycerol.
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Affiliation(s)
- Khalil Bouyakdan
- Montreal Diabetes Research Center, Centre de Recherche du Centre Hospitalier de l'Universite de Montreal (CRCHUM), Montreal, Quebec, Canada; Department of Biochemistry, University of Montreal, Montreal, Quebec, Canada
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9
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Bloksgaard M, Neess D, Færgeman NJ, Mandrup S. Acyl-CoA binding protein and epidermal barrier function. Biochim Biophys Acta Mol Cell Biol Lipids 2014; 1841:369-76. [DOI: 10.1016/j.bbalip.2013.09.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Revised: 09/20/2013] [Accepted: 09/23/2013] [Indexed: 11/29/2022]
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Mosbech MB, Olsen ASB, Neess D, Ben-David O, Klitten LL, Larsen J, Sabers A, Vissing J, Nielsen JE, Hasholt L, Klein AD, Tsoory MM, Hjalgrim H, Tommerup N, Futerman AH, Møller RS, Færgeman NJ. Reduced ceramide synthase 2 activity causes progressive myoclonic epilepsy. Ann Clin Transl Neurol 2014; 1:88-98. [PMID: 25356388 PMCID: PMC4212479 DOI: 10.1002/acn3.28] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 12/04/2013] [Indexed: 12/19/2022] Open
Abstract
Objective Ceramides are precursors of complex sphingolipids (SLs), which are important for normal functioning of both the developing and mature brain. Altered SL levels have been associated with many neurodegenerative disorders, including epilepsy, although few direct links have been identified between genes involved in SL metabolism and epilepsy. Methods We used quantitative real-time PCR, Western blotting, and enzymatic assays to determine the mRNA, protein, and activity levels of ceramide synthase 2 (CERS2) in fiibroblasts isolated from parental control subjects and from a patient diagnosed with progressive myoclonic epilepsy (PME). Mass spectrometry and fluorescence microscopy were used to examine the effects of reduced CERS2 activity on cellular lipid composition and plasma membrane functions. Results We identify a novel 27 kb heterozygous deletion including the CERS2 gene in a proband diagnosed with PME. Compared to parental controls, levels of CERS2 mRNA, protein, and activity were reduced by ˜50% in fibroblasts isolated from this proband, resulting in significantly reduced levels of ceramides and sphingomyelins containing the very long-chain fatty acids C24:0 and C26:0. The change in SL composition was also reflected in a reduction in cholera toxin B immunofluorescence, indicating that membrane composition and function are altered. Interpretation We propose that reduced levels of CERS2, and consequently diminished levels of ceramides and SLs containing very long-chain fatty acids, lead to development of PME.
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Affiliation(s)
- Mai-Britt Mosbech
- Department of Biochemistry and Molecular Biology, University of Southern Denmark Odense M, DK-5230, Denmark
| | - Anne S B Olsen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark Odense M, DK-5230, Denmark
| | - Ditte Neess
- Department of Biochemistry and Molecular Biology, University of Southern Denmark Odense M, DK-5230, Denmark
| | - Oshrit Ben-David
- Department of Biological Chemistry, Weizmann Institute of Science Rehovot, 76100, Israel
| | - Laura L Klitten
- The Danish Epilepsy Centre, Filadelfia Dianalund, DK-4293, Denmark
| | - Jan Larsen
- The Danish Epilepsy Centre, Filadelfia Dianalund, DK-4293, Denmark ; Department of Cellular and Molecular Medicine, The Panum Institute, University of Copenhagen Copenhagen, DK-2100, Denmark
| | - Anne Sabers
- Department of Neurology, Rigshospitalet, University of Copenhagen Copenhagen, DK-2100, Denmark
| | - John Vissing
- Department of Neurology, Rigshospitalet, University of Copenhagen Copenhagen, DK-2100, Denmark
| | - Jørgen E Nielsen
- Neurogenetics Clinic, Danish Dementia Research Centre, Department of Neurology, Rigshospitalet, Copenhagen University Hospital Copenhagen, DK-2100, Denmark
| | - Lis Hasholt
- Department of Cellular and Molecular Medicine, The Panum Institute, University of Copenhagen Copenhagen, DK-2100, Denmark
| | - Andres D Klein
- Department of Biological Chemistry, Weizmann Institute of Science Rehovot, 76100, Israel
| | - Michael M Tsoory
- Behavioral and Physiological Phenotyping Unit, Department of Veterinary Resources, Weizmann Institute of Science Rehovot, 76100, Israel
| | - Helle Hjalgrim
- The Danish Epilepsy Centre, Filadelfia Dianalund, DK-4293, Denmark ; Institute for Regional Health Services, University of Southern Denmark Odense, Denmark
| | - Niels Tommerup
- Department of Cellular and Molecular Medicine, The Panum Institute, University of Copenhagen Copenhagen, DK-2100, Denmark
| | - Anthony H Futerman
- Department of Biological Chemistry, Weizmann Institute of Science Rehovot, 76100, Israel
| | - Rikke S Møller
- The Danish Epilepsy Centre, Filadelfia Dianalund, DK-4293, Denmark ; Institute for Regional Health Services, University of Southern Denmark Odense, Denmark
| | - Nils J Færgeman
- Department of Biochemistry and Molecular Biology, University of Southern Denmark Odense M, DK-5230, Denmark
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11
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Bloksgaard M, Bek S, Marcher AB, Neess D, Brewer J, Hannibal-Bach HK, Helledie T, Fenger C, Due M, Berzina Z, Neubert R, Chemnitz J, Finsen B, Clemmensen A, Wilbertz J, Saxtorph H, Knudsen J, Bagatolli L, Mandrup S. The acyl-CoA binding protein is required for normal epidermal barrier function in mice. J Lipid Res 2012; 53:2162-2174. [PMID: 22829653 DOI: 10.1194/jlr.m029553] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The acyl-CoA binding protein (ACBP) is a 10 kDa intracellular protein expressed in all eukaryotic species. Mice with targeted disruption of Acbp (ACBP(-/-) mice) are viable and fertile but present a visible skin and fur phenotype characterized by greasy fur and development of alopecia and scaling with age. Morphology and development of skin and appendages are normal in ACBP(-/-) mice; however, the stratum corneum display altered biophysical properties with reduced proton activity and decreased water content. Mass spectrometry analyses of lipids from epidermis and stratum corneum of ACBP(+/+) and ACBP(-/-) mice showed very similar composition, except for a significant and specific decrease in the very long chain free fatty acids (VLC-FFA) in stratum corneum of ACBP(-/-) mice. This finding indicates that ACBP is critically involved in the processes that lead to production of stratum corneum VLC-FFAs via complex phospholipids in the lamellar bodies. Importantly, we show that ACBP(-/-) mice display a ∼50% increased transepidermal water loss compared with ACBP(+/+) mice. Furthermore, skin and fur sebum monoalkyl diacylglycerol (MADAG) levels are significantly increased, suggesting that ACBP limits MADAG synthesis in sebaceous glands. In summary, our study shows that ACBP is required for production of VLC-FFA for stratum corneum and for maintaining normal epidermal barrier function.
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Affiliation(s)
- Maria Bloksgaard
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense, Denmark; MEMPHYS-Center for Biomembrane Physics, University of Southern Denmark, DK-5230 Odense, Denmark
| | - Signe Bek
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense, Denmark
| | - Ann-Britt Marcher
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense, Denmark
| | - Ditte Neess
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense, Denmark
| | - Jonathan Brewer
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense, Denmark; MEMPHYS-Center for Biomembrane Physics, University of Southern Denmark, DK-5230 Odense, Denmark
| | | | - Torben Helledie
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense, Denmark
| | - Christina Fenger
- Institute of Molecular Medicine, University of Southern Denmark, DK-5230 Odense, Denmark
| | - Marianne Due
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense, Denmark
| | - Zane Berzina
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense, Denmark
| | - Reinhard Neubert
- Institut für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
| | - John Chemnitz
- Institute of Molecular Medicine, University of Southern Denmark, DK-5230 Odense, Denmark
| | - Bente Finsen
- Institute of Molecular Medicine, University of Southern Denmark, DK-5230 Odense, Denmark
| | - Anders Clemmensen
- Department of Dermatology, Odense University Hospital, Odense, Denmark; and
| | - Johannes Wilbertz
- Department of Dermatology, Karolinska Center of Transgene Technologies, Stockholm, Sweden
| | - Henrik Saxtorph
- Laboratory Animal Science and Comparative Medicine, University of Southern Denmark, DK-5230 Odense, Denmark and
| | - Jens Knudsen
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense, Denmark
| | - Luis Bagatolli
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense, Denmark; MEMPHYS-Center for Biomembrane Physics, University of Southern Denmark, DK-5230 Odense, Denmark; Danish Molecular Biomedical Imaging Center (DaMBIC), University of Southern Denmark, DK-5230 Odense, Denmark.
| | - Susanne Mandrup
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, DK-5230 Odense, Denmark.
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12
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Langaa S, Bloksgaard M, Bek S, Neess D, Nørregaard R, Hansen PBL, Marcher AB, Frøkiær J, Mandrup S, Jensen BL. Mice with targeted disruption of the acyl-CoA binding protein display attenuated urine concentrating ability and diminished renal aquaporin-3 abundance. Am J Physiol Renal Physiol 2012; 302:F1034-44. [DOI: 10.1152/ajprenal.00371.2011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The acyl-CoA binding protein (ACBP) is a small intracellular protein that specifically binds and transports medium to long-chain acyl-CoA esters. Previous studies have shown that ACBP is ubiquitously expressed but found at particularly high levels in lipogenic cell types as well as in many epithelial cells. Here we show that ACBP is widely expressed in human and mouse kidney epithelium, with the highest expression in the proximal convoluted tubules. To elucidate the role of ACBP in the renal epithelium, mice with targeted disruption of the ACBP gene (ACBP−/−) were used to study water and NaCl balance as well as urine concentrating ability in metabolic cages. Food intake and urinary excretion of Na+ and K+ did not differ between ACBP−/− and +/+ mice. Interestingly, however, water intake and diuresis were significantly higher at baseline in ACBP−/− mice compared with that of +/+ mice. Subsequent to 20-h water deprivation, ACBP−/− mice exhibited increased diuresis, reduced urine osmolality, elevated hematocrit, and higher relative weight loss compared with +/+ mice. There were no significant differences in plasma concentrations of renin, corticosterone, and aldosterone between mice of the two genotypes. After water deprivation, renal medullary interstitial fluid osmolality and concentrations of Na+, K+, and urea did not differ between genotypes and cAMP excretion was similar. Renal aquaporin-1 (AQP1), -2, and -4 protein abundances did not differ between water-deprived +/+ and ACBP−/− mice; however, ACBP−/− mice displayed increased apical targeting of pS256-AQP2. AQP3 abundance was lower in ACBP−/− mice than in +/+ control animals. Thus we conclude that ACBP is necessary for intact urine concentrating ability. Our data suggest that the deficiency in urine concentrating ability in the ACBP−/− may be caused by reduced AQP3, leading to impaired efflux over the basolateral membrane of the collecting duct.
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Affiliation(s)
- Stine Langaa
- Departments of 1Cardiovascular and Renal Research and
| | - Maria Bloksgaard
- Biochemistry and Molecular Biology, University of Southern Denmark, Odense; and
| | - Signe Bek
- Biochemistry and Molecular Biology, University of Southern Denmark, Odense; and
| | - Ditte Neess
- Biochemistry and Molecular Biology, University of Southern Denmark, Odense; and
| | - Rikke Nørregaard
- The Water and Salt Research Center, Institute of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | | | - Ann Britt Marcher
- Biochemistry and Molecular Biology, University of Southern Denmark, Odense; and
| | - Jørgen Frøkiær
- The Water and Salt Research Center, Institute of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Susanne Mandrup
- Biochemistry and Molecular Biology, University of Southern Denmark, Odense; and
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13
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Neess D, Bloksgaard M, Bek S, Marcher AB, Elle IC, Helledie T, Due M, Pagmantidis V, Finsen B, Wilbertz J, Kruhøffer M, Færgeman N, Mandrup S. Disruption of the acyl-CoA-binding protein gene delays hepatic adaptation to metabolic changes at weaning. J Biol Chem 2010; 286:3460-72. [PMID: 21106527 DOI: 10.1074/jbc.m110.161109] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The acyl-CoA-binding protein (ACBP)/diazepam binding inhibitor is an intracellular protein that binds C(14)-C(22) acyl-CoA esters and is thought to act as an acyl-CoA transporter. In vitro analyses have indicated that ACBP can transport acyl-CoA esters between different enzymatic systems; however, little is known about the in vivo function in mammalian cells. We have generated mice with targeted disruption of ACBP (ACBP(-/-)). These mice are viable and fertile and develop normally. However, around weaning, the ACBP(-/-) mice go through a crisis with overall weakness and a slightly decreased growth rate. Using microarray analysis, we show that the liver of ACBP(-/-) mice displays a significantly delayed adaptation to weaning with late induction of target genes of the sterol regulatory element-binding protein (SREBP) family. As a result, hepatic de novo cholesterogenesis is decreased at weaning. The delayed induction of SREBP target genes around weaning is caused by a compromised processing and decreased expression of SREBP precursors, leading to reduced binding of SREBP to target sites in chromatin. In conclusion, lack of ACBP interferes with the normal metabolic adaptation to weaning and leads to delayed induction of the lipogenic gene program in the liver.
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Affiliation(s)
- Ditte Neess
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, 5230 Odense M, Denmark
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14
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Neess D, Kiilerich P, Sandberg MB, Helledie T, Nielsen R, Mandrup S. ACBP--a PPAR and SREBP modulated housekeeping gene. Mol Cell Biochem 2006; 284:149-57. [PMID: 16411019 DOI: 10.1007/s11010-005-9039-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2004] [Accepted: 04/02/2005] [Indexed: 10/25/2022]
Abstract
The acyl-CoA binding protein (ACBP) is a 10 kD intracellular lipid binding protein that binds and transports acyl-CoA esters. The protein is expressed in most cell types at low levels; however, expression differs markedly between different cell types with expression being particularly high in e.g. cells with a high turnover of fatty acids. We show here that the relatively high basal promoter activity of the rat ACBP gene in fibroblasts and hepatoma cells relies on sequences between -331 to -182 and on the Sp1 and NF-Y sites at -172 and -143, respectively. The basal transcription is modulated by members of the PPAR and SREBP families. In adipocytes, PPARgamma is in part responsible for the induction during adipocyte differentiation, but other transcription factors appear to play a role as well. In hepatocytes, SREBP-1c is the main regulator of ACBP in response to changes in insulin levels during fasting/refeeding. PPARalpha counteracts this effect by stimulating ACBP expression during fasting. In addition, PPARalpha mediates the induction of ACBP expression in response to peroxisome proliferators. PPARalpha and PPARgamma do not require sequences upstream of -182 for transactivation; however, SREBP-1c requires the synergistic action of sequences in intron 1 for transactivation of the ACBP promoter.
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Affiliation(s)
- Ditte Neess
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, 5230, Odense M, Denmark
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