Pharmacological Blockade of Cannabinoid CB1 Receptors in Diet-Induced Obesity Regulates Mitochondrial Dihydrolipoamide Dehydrogenase in Muscle

Sergio Arrabal; Miguel Angel Lucena; Miren Josune Canduela; Almudena Ramos-Uriarte; Patricia Rivera; Antonia Serrano; Francisco Javier Pavón; Juan Decara; Antonio Vargas; Elena Baixeras; Mercedes Martín-Rufián; Javier Márquez; Pedro Fernández-Llébrez; Baukje De Roos; Pedro Grandes; Fernando Rodríguez de Fonseca; Juan Suárez

doi:10.1371/journal.pone.0145244

Pharmacological Blockade of Cannabinoid CB1 Receptors in Diet-Induced Obesity Regulates Mitochondrial Dihydrolipoamide Dehydrogenase in Muscle

Sergio Arrabal, Miguel Angel Lucena, Miren Josune Canduela, Almudena Ramos-Uriarte, Patricia Rivera, Antonia Serrano, Francisco Javier Pavón, Juan Decara, Antonio Vargas, Elena Baixeras, Mercedes Martín-Rufián, Javier Márquez, Pedro Fernández-Llébrez, Baukje De Roos, Pedro Grandes, Fernando Rodríguez de Fonseca, Juan Suárez

The Rowett Institute of Nutrition and Health

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Abstract

Cannabinoid CB1 receptors peripherally modulate energy metabolism. Here, we investigated the role of CB1 receptors in the expression of glucose/pyruvate/tricarboxylic acid (TCA) metabolism in rat abdominal muscle. Dihydrolipoamide dehydrogenase (DLD), a flavoprotein component (E3) of α-ketoacid dehydrogenase complexes with diaphorase activity in mitochondria, was specifically analyzed. After assessing the effectiveness of the CB1 receptor antagonist AM251 (3 mg kg-1, 14 days) on food intake and body weight, we could identified seven key enzymes from either glycolytic pathway or TCA cycle-regulated by both diet and CB1 receptor activity-through comprehensive proteomic approaches involving two-dimensional electrophoresis and MALDI-TOF/LC-ESI trap mass spectrometry. These enzymes were glucose 6-phosphate isomerase (GPI), triosephosphate isomerase (TPI), enolase (Eno3), lactate dehydrogenase (LDHa), glyoxalase-1 (Glo1) and the mitochondrial DLD, whose expressions were modified by AM251 in hypercaloric diet-induced obesity. Specifically, AM251 blocked high-carbohydrate diet (HCD)-induced expression of GPI, TPI, Eno3 and LDHa, suggesting a down-regulation of glucose/pyruvate/lactate pathways under glucose availability. AM251 reversed the HCD-inhibited expression of Glo1 and DLD in the muscle, and the DLD and CB1 receptor expression in the mitochondrial fraction. Interestingly, we identified the presence of CB1 receptors at the membrane of striate muscle mitochondria. DLD over-expression was confirmed in muscle of CB1-/- mice. AM251 increased the pyruvate dehydrogenase and glutathione reductase activity in C2C12 myotubes, and the diaphorase/oxidative activity in the mitochondria fraction. These results indicated an up-regulation of methylglyoxal and TCA cycle activity. Findings suggest that CB1 receptors in muscle modulate glucose/pyruvate/lactate pathways and mitochondrial oxidative activity by targeting DLD.

Original language	English
Article number	e0145244
Number of pages	23
Journal	PloS ONE
Volume	10
Issue number	12
Early online date	15 Dec 2015
DOIs	https://doi.org/10.1371/journal.pone.0145244
Publication status	Published - 2015

Bibliographical note

Funding: This work was supported by CIBERobn (CB06/03/1008), Ministerio de Economía y Competitividad (MINECO) (PG: BFU2012-33334), Instituto de Salud Carlos III (ISCIII), MINECO, co-funded by UE-ERDF program (JS: CP12/03109), Red de Trastornos Adictivos (FRF: RD12/0028/0001, PG: RD12/0028/0004, JM: RD12/0028/0013), The Basque Country Government (PG: BCG IT764-13), Consejería de Economía, Innovación y Ciencia, Junta de Andalucía, UE-ERDF (FRF: CTS-8221, JM: CVI-6656), Consejería de Salud, Junta de Andalucía, UE-ERDF (FRF: SAS111224), and University of the Basque Country UPV/EHU (PG: UFI11/41). JS, FJP and AS hold “Miguel Servet” research contracts from the National System of Health, ISCIII, UE-ERDF (CP12/03109, CP14/00212, and CP14/00173 respectively)

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Pharmacological Blockade of Cannabinoid CB1 Receptors in Diet-Induced Obesity Regulates Mitochondrial Dihydrolipoamide Dehydrogenase in Muscle
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Baukje de Roos
- School of Medicine, Medical Sciences & Nutrition, The Rowett Institute of Nutrition and Health - Personal Chair
Person: Academic

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Arrabal, S., Lucena, M. A., Canduela, M. J., Ramos-Uriarte, A., Rivera, P., Serrano, A., Pavón, F. J., Decara, J., Vargas, A., Baixeras, E., Martín-Rufián, M., Márquez, J., Fernández-Llébrez, P., De Roos, B., Grandes, P., Rodríguez de Fonseca, F., & Suárez, J. (2015). Pharmacological Blockade of Cannabinoid CB1 Receptors in Diet-Induced Obesity Regulates Mitochondrial Dihydrolipoamide Dehydrogenase in Muscle. PloS ONE, 10(12), Article e0145244. https://doi.org/10.1371/journal.pone.0145244

Arrabal, S, Lucena, MA, Canduela, MJ, Ramos-Uriarte, A, Rivera, P, Serrano, A, Pavón, FJ, Decara, J, Vargas, A, Baixeras, E, Martín-Rufián, M, Márquez, J, Fernández-Llébrez, P, De Roos, B, Grandes, P, Rodríguez de Fonseca, F & Suárez, J 2015, 'Pharmacological Blockade of Cannabinoid CB1 Receptors in Diet-Induced Obesity Regulates Mitochondrial Dihydrolipoamide Dehydrogenase in Muscle', PloS ONE, vol. 10, no. 12, e0145244. https://doi.org/10.1371/journal.pone.0145244

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title = "Pharmacological Blockade of Cannabinoid CB1 Receptors in Diet-Induced Obesity Regulates Mitochondrial Dihydrolipoamide Dehydrogenase in Muscle",

abstract = "Cannabinoid CB1 receptors peripherally modulate energy metabolism. Here, we investigated the role of CB1 receptors in the expression of glucose/pyruvate/tricarboxylic acid (TCA) metabolism in rat abdominal muscle. Dihydrolipoamide dehydrogenase (DLD), a flavoprotein component (E3) of α-ketoacid dehydrogenase complexes with diaphorase activity in mitochondria, was specifically analyzed. After assessing the effectiveness of the CB1 receptor antagonist AM251 (3 mg kg-1, 14 days) on food intake and body weight, we could identified seven key enzymes from either glycolytic pathway or TCA cycle-regulated by both diet and CB1 receptor activity-through comprehensive proteomic approaches involving two-dimensional electrophoresis and MALDI-TOF/LC-ESI trap mass spectrometry. These enzymes were glucose 6-phosphate isomerase (GPI), triosephosphate isomerase (TPI), enolase (Eno3), lactate dehydrogenase (LDHa), glyoxalase-1 (Glo1) and the mitochondrial DLD, whose expressions were modified by AM251 in hypercaloric diet-induced obesity. Specifically, AM251 blocked high-carbohydrate diet (HCD)-induced expression of GPI, TPI, Eno3 and LDHa, suggesting a down-regulation of glucose/pyruvate/lactate pathways under glucose availability. AM251 reversed the HCD-inhibited expression of Glo1 and DLD in the muscle, and the DLD and CB1 receptor expression in the mitochondrial fraction. Interestingly, we identified the presence of CB1 receptors at the membrane of striate muscle mitochondria. DLD over-expression was confirmed in muscle of CB1-/- mice. AM251 increased the pyruvate dehydrogenase and glutathione reductase activity in C2C12 myotubes, and the diaphorase/oxidative activity in the mitochondria fraction. These results indicated an up-regulation of methylglyoxal and TCA cycle activity. Findings suggest that CB1 receptors in muscle modulate glucose/pyruvate/lactate pathways and mitochondrial oxidative activity by targeting DLD.",

author = "Sergio Arrabal and Lucena, {Miguel Angel} and Canduela, {Miren Josune} and Almudena Ramos-Uriarte and Patricia Rivera and Antonia Serrano and Pav{\'o}n, {Francisco Javier} and Juan Decara and Antonio Vargas and Elena Baixeras and Mercedes Mart{\'i}n-Rufi{\'a}n and Javier M{\'a}rquez and Pedro Fern{\'a}ndez-Ll{\'e}brez and {De Roos}, Baukje and Pedro Grandes and {Rodr{\'i}guez de Fonseca}, Fernando and Juan Su{\'a}rez",

note = "Funding: This work was supported by CIBERobn (CB06/03/1008), Ministerio de Econom{\'i}a y Competitividad (MINECO) (PG: BFU2012-33334), Instituto de Salud Carlos III (ISCIII), MINECO, co-funded by UE-ERDF program (JS: CP12/03109), Red de Trastornos Adictivos (FRF: RD12/0028/0001, PG: RD12/0028/0004, JM: RD12/0028/0013), The Basque Country Government (PG: BCG IT764-13), Consejer{\'i}a de Econom{\'i}a, Innovaci{\'o}n y Ciencia, Junta de Andaluc{\'i}a, UE-ERDF (FRF: CTS-8221, JM: CVI-6656), Consejer{\'i}a de Salud, Junta de Andaluc{\'i}a, UE-ERDF (FRF: SAS111224), and University of the Basque Country UPV/EHU (PG: UFI11/41). JS, FJP and AS hold “Miguel Servet” research contracts from the National System of Health, ISCIII, UE-ERDF (CP12/03109, CP14/00212, and CP14/00173 respectively)",

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T1 - Pharmacological Blockade of Cannabinoid CB1 Receptors in Diet-Induced Obesity Regulates Mitochondrial Dihydrolipoamide Dehydrogenase in Muscle

AU - Arrabal, Sergio

AU - Lucena, Miguel Angel

AU - Canduela, Miren Josune

AU - Ramos-Uriarte, Almudena

AU - Rivera, Patricia

AU - Serrano, Antonia

AU - Pavón, Francisco Javier

AU - Decara, Juan

AU - Vargas, Antonio

AU - Baixeras, Elena

AU - Martín-Rufián, Mercedes

AU - Márquez, Javier

AU - Fernández-Llébrez, Pedro

AU - De Roos, Baukje

AU - Grandes, Pedro

AU - Rodríguez de Fonseca, Fernando

AU - Suárez, Juan

N1 - Funding: This work was supported by CIBERobn (CB06/03/1008), Ministerio de Economía y Competitividad (MINECO) (PG: BFU2012-33334), Instituto de Salud Carlos III (ISCIII), MINECO, co-funded by UE-ERDF program (JS: CP12/03109), Red de Trastornos Adictivos (FRF: RD12/0028/0001, PG: RD12/0028/0004, JM: RD12/0028/0013), The Basque Country Government (PG: BCG IT764-13), Consejería de Economía, Innovación y Ciencia, Junta de Andalucía, UE-ERDF (FRF: CTS-8221, JM: CVI-6656), Consejería de Salud, Junta de Andalucía, UE-ERDF (FRF: SAS111224), and University of the Basque Country UPV/EHU (PG: UFI11/41). JS, FJP and AS hold “Miguel Servet” research contracts from the National System of Health, ISCIII, UE-ERDF (CP12/03109, CP14/00212, and CP14/00173 respectively)

PY - 2015

Y1 - 2015

N2 - Cannabinoid CB1 receptors peripherally modulate energy metabolism. Here, we investigated the role of CB1 receptors in the expression of glucose/pyruvate/tricarboxylic acid (TCA) metabolism in rat abdominal muscle. Dihydrolipoamide dehydrogenase (DLD), a flavoprotein component (E3) of α-ketoacid dehydrogenase complexes with diaphorase activity in mitochondria, was specifically analyzed. After assessing the effectiveness of the CB1 receptor antagonist AM251 (3 mg kg-1, 14 days) on food intake and body weight, we could identified seven key enzymes from either glycolytic pathway or TCA cycle-regulated by both diet and CB1 receptor activity-through comprehensive proteomic approaches involving two-dimensional electrophoresis and MALDI-TOF/LC-ESI trap mass spectrometry. These enzymes were glucose 6-phosphate isomerase (GPI), triosephosphate isomerase (TPI), enolase (Eno3), lactate dehydrogenase (LDHa), glyoxalase-1 (Glo1) and the mitochondrial DLD, whose expressions were modified by AM251 in hypercaloric diet-induced obesity. Specifically, AM251 blocked high-carbohydrate diet (HCD)-induced expression of GPI, TPI, Eno3 and LDHa, suggesting a down-regulation of glucose/pyruvate/lactate pathways under glucose availability. AM251 reversed the HCD-inhibited expression of Glo1 and DLD in the muscle, and the DLD and CB1 receptor expression in the mitochondrial fraction. Interestingly, we identified the presence of CB1 receptors at the membrane of striate muscle mitochondria. DLD over-expression was confirmed in muscle of CB1-/- mice. AM251 increased the pyruvate dehydrogenase and glutathione reductase activity in C2C12 myotubes, and the diaphorase/oxidative activity in the mitochondria fraction. These results indicated an up-regulation of methylglyoxal and TCA cycle activity. Findings suggest that CB1 receptors in muscle modulate glucose/pyruvate/lactate pathways and mitochondrial oxidative activity by targeting DLD.

AB - Cannabinoid CB1 receptors peripherally modulate energy metabolism. Here, we investigated the role of CB1 receptors in the expression of glucose/pyruvate/tricarboxylic acid (TCA) metabolism in rat abdominal muscle. Dihydrolipoamide dehydrogenase (DLD), a flavoprotein component (E3) of α-ketoacid dehydrogenase complexes with diaphorase activity in mitochondria, was specifically analyzed. After assessing the effectiveness of the CB1 receptor antagonist AM251 (3 mg kg-1, 14 days) on food intake and body weight, we could identified seven key enzymes from either glycolytic pathway or TCA cycle-regulated by both diet and CB1 receptor activity-through comprehensive proteomic approaches involving two-dimensional electrophoresis and MALDI-TOF/LC-ESI trap mass spectrometry. These enzymes were glucose 6-phosphate isomerase (GPI), triosephosphate isomerase (TPI), enolase (Eno3), lactate dehydrogenase (LDHa), glyoxalase-1 (Glo1) and the mitochondrial DLD, whose expressions were modified by AM251 in hypercaloric diet-induced obesity. Specifically, AM251 blocked high-carbohydrate diet (HCD)-induced expression of GPI, TPI, Eno3 and LDHa, suggesting a down-regulation of glucose/pyruvate/lactate pathways under glucose availability. AM251 reversed the HCD-inhibited expression of Glo1 and DLD in the muscle, and the DLD and CB1 receptor expression in the mitochondrial fraction. Interestingly, we identified the presence of CB1 receptors at the membrane of striate muscle mitochondria. DLD over-expression was confirmed in muscle of CB1-/- mice. AM251 increased the pyruvate dehydrogenase and glutathione reductase activity in C2C12 myotubes, and the diaphorase/oxidative activity in the mitochondria fraction. These results indicated an up-regulation of methylglyoxal and TCA cycle activity. Findings suggest that CB1 receptors in muscle modulate glucose/pyruvate/lactate pathways and mitochondrial oxidative activity by targeting DLD.

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ER -

Pharmacological Blockade of Cannabinoid CB1 Receptors in Diet-Induced Obesity Regulates Mitochondrial Dihydrolipoamide Dehydrogenase in Muscle

Abstract

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