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Jung KM, Lin L, Piomelli D. Overactivation of the Endocannabinoid System in Adolescence Disrupts Adult Adipose Organ Function in Mice. Cells 2024; 13:461. [PMID: 38474425 PMCID: PMC10930932 DOI: 10.3390/cells13050461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 02/29/2024] [Accepted: 03/05/2024] [Indexed: 03/14/2024] Open
Abstract
Cannabis use stimulates calorie intake, but epidemiological studies show that people who regularly use it are leaner than those who don't. Two explanations have been proposed for this paradoxical finding. One posits that Δ9-tetrahydrocannabinol (THC) in cannabis desensitizes adipose CB1 cannabinoid receptors, stopping their stimulating effects on lipogenesis and adipogenesis. Another explanation is that THC exposure in adolescence, when habitual cannabis use typically starts, produces lasting changes in the developing adipose organ, which impacts adult systemic energy use. Here, we consider these possibilities in the light of a study which showed that daily THC administration in adolescent mice produces an adult metabolic phenotype characterized by reduced fat mass, partial resistance to obesity and dyslipidemia, and impaired thermogenesis and lipolysis. The phenotype, whose development requires activation of CB1 receptors in differentiated adipocytes, is associated with overexpression of myocyte proteins in the adipose organ with unchanged CB1 expression. We propose that adolescent exposure to THC causes lasting adipocyte dysfunction and the consequent emergence of a metabolic state that only superficially resembles healthy leanness. A corollary of this hypothesis, which should be addressed in future studies, is that CB1 receptors and their endocannabinoid ligands may contribute to the maintenance of adipocyte differentiation during adolescence.
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Affiliation(s)
- Kwang-Mook Jung
- Department of Anatomy and Neurobiology, University of California, Irvine, CA 92697, USA; (K.-M.J.); (L.L.)
| | - Lin Lin
- Department of Anatomy and Neurobiology, University of California, Irvine, CA 92697, USA; (K.-M.J.); (L.L.)
| | - Daniele Piomelli
- Department of Anatomy and Neurobiology, University of California, Irvine, CA 92697, USA; (K.-M.J.); (L.L.)
- Department of Biological Chemistry, University of California, Irvine, CA 92697, USA
- Department of Pharmaceutical Sciences, University of California, Irvine, CA 92697, USA
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Lin L, Jung KM, Lee HL, Le J, Colleluori G, Wood C, Palese F, Squire E, Ramirez J, Su S, Torrens A, Fotio Y, Tang L, Yu C, Yang Q, Huang L, DiPatrizio N, Jang C, Cinti S, Piomelli D. Adolescent exposure to low-dose THC disrupts energy balance and adipose organ homeostasis in adulthood. Cell Metab 2023; 35:1227-1241.e7. [PMID: 37267956 PMCID: PMC10524841 DOI: 10.1016/j.cmet.2023.05.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 02/07/2023] [Accepted: 05/05/2023] [Indexed: 06/04/2023]
Abstract
One of cannabis' most iconic effects is the stimulation of hedonic high-calorie eating-the "munchies"-yet habitual cannabis users are, on average, leaner than non-users. We asked whether this phenotype might result from lasting changes in energy balance established during adolescence, when use of the drug often begins. We found that daily low-dose administration of cannabis' intoxicating constituent, Δ9-tetrahydrocannabinol (THC), to adolescent male mice causes an adult metabolic phenotype characterized by reduced fat mass, increased lean mass and utilization of fat as fuel, partial resistance to diet-induced obesity and dyslipidemia, enhanced thermogenesis, and impaired cold- and β-adrenergic receptor-stimulated lipolysis. Further analyses revealed that this phenotype is associated with molecular anomalies in the adipose organ, including ectopic overexpression of muscle-associated proteins and heightened anabolic processing. Thus, adolescent exposure to THC may promote an enduring "pseudo-lean" state that superficially resembles healthy leanness but might in fact be rooted in adipose organ dysfunction.
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Affiliation(s)
- Lin Lin
- Department of Anatomy and Neurobiology, University of California, Irvine, Irvine, CA 92697, USA
| | - Kwang-Mook Jung
- Department of Anatomy and Neurobiology, University of California, Irvine, Irvine, CA 92697, USA
| | - Hye-Lim Lee
- Department of Anatomy and Neurobiology, University of California, Irvine, Irvine, CA 92697, USA
| | - Johnny Le
- Department of Biological Chemistry, University of California, Irvine, Irvine, CA 92697, USA
| | - Georgia Colleluori
- Department of Clinical and Experimental Medicine, Center of Obesity, Marche Polytechnic University, Ancona 600126, Italy
| | - Courtney Wood
- Department of Biomedical Sciences, University of California, Riverside, Riverside, CA 92697, USA
| | - Francesca Palese
- Department of Anatomy and Neurobiology, University of California, Irvine, Irvine, CA 92697, USA
| | - Erica Squire
- Department of Anatomy and Neurobiology, University of California, Irvine, Irvine, CA 92697, USA
| | - Jade Ramirez
- Department of Anatomy and Neurobiology, University of California, Irvine, Irvine, CA 92697, USA
| | - Shiqi Su
- Department of Anatomy and Neurobiology, University of California, Irvine, Irvine, CA 92697, USA
| | - Alexa Torrens
- Department of Anatomy and Neurobiology, University of California, Irvine, Irvine, CA 92697, USA
| | - Yannick Fotio
- Department of Anatomy and Neurobiology, University of California, Irvine, Irvine, CA 92697, USA
| | - Lingyi Tang
- Department of Physiology and Biophysics, University of California, Irvine, Irvine, CA 92697, USA
| | - Clinton Yu
- Department of Physiology and Biophysics, University of California, Irvine, Irvine, CA 92697, USA
| | - Qin Yang
- Department of Physiology and Biophysics, University of California, Irvine, Irvine, CA 92697, USA
| | - Lan Huang
- Department of Physiology and Biophysics, University of California, Irvine, Irvine, CA 92697, USA
| | - Nicholas DiPatrizio
- Department of Biomedical Sciences, University of California, Riverside, Riverside, CA 92697, USA
| | - Cholsoon Jang
- Department of Biological Chemistry, University of California, Irvine, Irvine, CA 92697, USA
| | - Saverio Cinti
- Department of Clinical and Experimental Medicine, Center of Obesity, Marche Polytechnic University, Ancona 600126, Italy
| | - Daniele Piomelli
- Department of Anatomy and Neurobiology, University of California, Irvine, Irvine, CA 92697, USA; Department of Biological Chemistry, University of California, Irvine, Irvine, CA 92697, USA; Department of Pharmaceutical Sciences, University of California, Irvine, Irvine, CA 92697, USA.
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Barré T, Carrat F, Ramier C, Fontaine H, Di Beo V, Bureau M, Dorival C, Larrey D, Delarocque-Astagneau E, Mathurin P, Marcellin F, Petrov-Sanchez V, Cagnot C, Carrieri P, Pol S, Protopopescu C, Alric L, Pomes C, Zoulim F, Maynard M, Bai R, Hucault L, Bailly F, Raffi F, Billaud E, Boutoille D, Lefebvre M, André-Garnier E, Cales P, Hubert I, Lannes A, Lunel F, Boursier J, Asselah T, Boyer N, Giuily N, Castelnau C, Scoazec G, Pol S, Fontaine H, Rousseaud E, Vallet-Pichard A, Sogni P, de Ledinghen V, Foucher J, Hiriart JB, M’Bouyou J, Irlès-Depé M, Bourlière M, Ahmed SNS, Oules V, Tran A, Anty R, Gelsi E, Truchi R, Thabut D, Hammeche S, Moussali J, Causse X, De Dieuleveult B, Ouarani B, Labarrière D, Ganne N, Grando-Lemaire V, Nahon P, Brulé S, Ulker B, Guyader D, Jezequel C, Brener A, Laligant A, Rabot A, Renard I, Habersetzer F, Baumert TF, Doffoel M, Mutter C, Simo-Noumbissie P, Razi E, Bronowicki JP, Barraud H, Bensenane M, Nani A, Hassani-Nani S, Bernard MA, Pageaux GP, Larrey D, Meszaros M, Metivier S, Bureau C, Morales T, Peron JM, Robic MA, Decaens T, Faure M, Froissart B, Hilleret MN, Zarski JP, Riachi G, Goria O, Paris F, Montialoux H, Leroy V, Amaddeo G, Varaut A, Simoes M, Amzal R, Chazouillières O, Andreani T, Angoulevant B, Chevance A, Serfaty L, Samuel D, Antonini T, Coilly A, Duclos-Vallée JC, Tateo M, Abergel A, Reymond M, Brigitte C, Benjamin B, Muti L, Geist C, Conroy G, Riffault R, Rosa I, Barrault C, Costes L, Hagège H, Loustaud-Ratti V, Carrier P, Debette-Gratien M, Mathurin P, Lassailly G, Lemaitre E, Canva V, Dharancy S, Louvet A, Minello A, Latournerie M, Bardou M, Mouillot T, D’Alteroche L, Barbereau D, Nicolas C, Elkrief L, Jaillais A, Gournay J, Chevalier C, Archambeaud I, Habes S, Portal I, Gelu-Simeon M, Saillard E, Lafrance MJ, Catherine L, Carrat F, Chau F, Dorival C, Goderel I, Lusivika-Nzinga C, Bellance MA, Bellet J, Monfalet P, Chane-Teng J, Bijaoui S, Pannetier G, Téoulé F, Nicol J, Sebal F, Bekhti R, Cagnot C, Boston A, Nailler L, Le Meut G, Diallo A, Petrov-Sanchez V, Bourlière M, Boursier J, Carrat F, Carrieri P, Delarocque-Astagneau E, De Ledinghen V, Dorival C, Fontaine H, Fourati S, Housset C, Larrey D, Nahon P, Pageaux GP, Petrov-Sanchez V, Pol S, Bruyand M, Wittkop L, Zoulim F, Zucman-Rossi J, L’hennaff M, Sizorn M, Cagnot C. Cannabis use as a factor of lower corpulence in hepatitis C-infected patients: results from the ANRS CO22 Hepather cohort. J Cannabis Res 2022; 4:31. [PMID: 35690798 PMCID: PMC9188079 DOI: 10.1186/s42238-022-00138-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 05/19/2022] [Indexed: 11/21/2022] Open
Abstract
Background Patients with chronic hepatitis C virus (HCV) infection are at greater risk of developing metabolic disorders. Obesity is a major risk factor for these disorders, and therefore, managing body weight is crucial. Cannabis use, which is common in these patients, has been associated with lower corpulence in various populations. However, this relationship has not yet been studied in persons with chronic HCV infection. Methods Using baseline data from the French ANRS CO22 Hepather cohort, we used binary logistic and multinomial logistic regression models to test for an inverse relationship between cannabis use (former/current) and (i) central obesity (i.e., large waist circumference) and (ii) overweight and obesity (i.e., elevated body mass index (BMI)) in patients from the cohort who had chronic HCV infection. We also tested for relationships between cannabis use and both waist circumference and BMI as continuous variables, using linear regression models. Results Among the 6348 participants in the study population, 55% had central obesity, 13.7% had obesity according to their BMI, and 12.4% were current cannabis users. After multivariable adjustment, current cannabis use was associated with lower risk of central obesity (adjusted odds ratio, aOR [95% confidence interval, CI]: 0.45 [0.37–0.55]), BMI-based obesity (adjusted relative risk ratio (aRRR) [95% CI]: 0.27 [0.19–0.39]), and overweight (aRRR [95% CI]: 0.47 [0.38–0.59]). This was also true for former use, but to a lesser extent. Former and current cannabis use were inversely associated with waist circumference and BMI. Conclusions We found that former and, to a greater extent, current cannabis use were consistently associated with smaller waist circumference, lower BMI, and lower risks of overweight, obesity, and central obesity in patients with chronic HCV infection. Longitudinal studies are needed to confirm these relationships and to assess the effect of cannabis use on corpulence and liver outcomes after HCV cure. Trial registration ClinicalTrials.gov identifier: NCT01953458.
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