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Tang Y, Wang M, Yu J, Lv G, Wang Y, Yu B. The antitumor action of endocannabinoids in the tumor microenvironment of glioblastoma. Front Pharmacol 2024; 15:1395156. [PMID: 38720772 PMCID: PMC11076672 DOI: 10.3389/fphar.2024.1395156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 04/09/2024] [Indexed: 05/12/2024] Open
Abstract
Approximately 80% of all malignant brain tumors are gliomas, which are primary brain tumors. The most prevalent subtype of glioma, glioblastoma multiforme (GBM), is also the most deadly. Chemotherapy, immunotherapy, surgery, and conventional pharmacotherapy are currently available therapeutic options for GBM; unfortunately, these approaches only prolong the patient's life by 5 years at most. Despite numerous intensive therapeutic options, GBM is considered incurable. Accumulating preclinical data indicate that overt antitumoral effects can be induced by pharmacologically activating endocannabinoid receptors on glioma cells by modifying important intracellular signaling cascades. The complex mechanism underlying the endocannabinoid receptor-evoked antitumoral activity in experimental models of glioma may inhibit the ability of cancer cells to invade, proliferate, and exhibit stem cell-like characteristics, along with altering other aspects of the complex tumor microenvironment. The exact biological function of the endocannabinoid system in the development and spread of gliomas, however, is remains unclear and appears to rely heavily on context. Previous studies have revealed that endocannabinoid receptors are present in the tumor microenvironment, suggesting that these receptors could be novel targets for the treatment of GBM. Additionally, endocannabinoids have demonstrated anticancer effects through signaling pathways linked to the classic features of cancer. Thus, the pharmacology of endocannabinoids in the glioblastoma microenvironment is the main topic of this review, which may promote the development of future GBM therapies.
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Affiliation(s)
- Yi Tang
- Department of Pharmacy, Sichuan Cancer Center, Sichuan Cancer Hospital and Institute, Affiliate Cancer Hospital of University of Electronic Science and Technology of China (UESTC), Chengdu, China
| | - Maoru Wang
- Drug Dispensing Department, Sichuan Mental Health Center, The Third Hospital of Mianyang, Mianyang, China
| | - Jiangping Yu
- Department of Pharmacy, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, China
| | - Guangyao Lv
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, China
| | - Yu Wang
- Department of Pharmacy, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, China
| | - Bin Yu
- Department of Pharmacy, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, China
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Papadogkonaki S, Spyridakos D, Lapokonstantaki E, Chaniotakis N, Makriyannis A, Malamas MS, Thermos K. Investigating the Effects of Exogenous and Endogenous 2-Arachidonoylglycerol on Retinal CB1 Cannabinoid Receptors and Reactive Microglia in Naive and Diseased Retina. Int J Mol Sci 2023; 24:15689. [PMID: 37958673 PMCID: PMC10650178 DOI: 10.3390/ijms242115689] [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: 10/02/2023] [Revised: 10/22/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023] Open
Abstract
The endocannabinoid system (ECS) is a new target for the development of retinal disease therapeutics, whose pathophysiology involves neurodegeneration and neuroinflammation. The endocannabinoid 2-arachidonoylglycerol (2-AG) affects neurons and microglia by activating CB1/CB2 cannabinoid receptors (Rs). The aim of this study was to investigate the effects of 2-AG on the CB1R expression/downregulation and retinal neurons/reactive microglia, when administered repeatedly (4 d), in three different paradigms. These involved the 2-AG exogenous administration (a) intraperitoneally (i.p.) and (b) topically and (c) by enhancing the 2-AG endogenous levels via the inhibition (AM11920, i.p.) of its metabolic enzymes (MAGL/ABHD6). Sprague Dawley rats were treated as mentioned above in the presence or absence of CB1/CB2R antagonists and the excitatory amino acid, α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA). Immunohistochemistry, Western blot and a 2-AG level analyses were performed. The 2-AG repeated treatment (i.p.) induced the CB1R downregulation, abolishing its neuroprotective actions. However, 2-AG attenuated the AMPA-induced activation of microglia via the CB2R, as concurred by the AM630 antagonist effect. Topically administered 2-AG was efficacious as a neuroprotectant/antiapoptotic and anti-inflammatory agent. AM11920 increased the 2-AG levels providing neuroprotection against excitotoxicity and reduced microglial activation without affecting the CB1R expression. Our findings show that 2-AG, in the three paradigms studied, displays differential pharmacological profiles in terms of the downregulation of the CB1R and neuroprotection. All treatments, however, attenuated the activation of microglia via the CB2R activation, supporting the anti-inflammatory role of 2-AG in the retina.
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Affiliation(s)
- Sofia Papadogkonaki
- Department of Pharmacology, School of Medicine, University of Crete, Heraklion, 71003 Crete, Greece; (S.P.); (D.S.)
| | - Dimitris Spyridakos
- Department of Pharmacology, School of Medicine, University of Crete, Heraklion, 71003 Crete, Greece; (S.P.); (D.S.)
| | | | - Nikos Chaniotakis
- Department of Chemistry, University of Crete, Heraklion, 71003 Crete, Greece; (E.L.); (N.C.)
| | - Alexandros Makriyannis
- Center for Drug Discovery and Departments of Chemistry and Chemical Biology and Pharmaceutical Sciences, Northeastern University, Boston, MA 02115, USA; (A.M.); (M.S.M.)
| | - Michael S. Malamas
- Center for Drug Discovery and Departments of Chemistry and Chemical Biology and Pharmaceutical Sciences, Northeastern University, Boston, MA 02115, USA; (A.M.); (M.S.M.)
| | - Kyriaki Thermos
- Department of Pharmacology, School of Medicine, University of Crete, Heraklion, 71003 Crete, Greece; (S.P.); (D.S.)
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Rivas-Santisteban R, Lillo J, Raïch I, Muñoz A, Lillo A, Rodríguez-Pérez AI, Labandeira-García JL, Navarro G, Franco R. The cannabinoid CB 1 receptor interacts with the angiotensin AT 2 receptor. Overexpression of AT 2-CB 1 receptor heteromers in the striatum of 6-hydroxydopamine hemilesioned rats. Exp Neurol 2023; 362:114319. [PMID: 36632949 DOI: 10.1016/j.expneurol.2023.114319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 12/14/2022] [Accepted: 01/06/2023] [Indexed: 01/11/2023]
Abstract
It is of particular interest the potential of cannabinoid and angiotensin receptors as targets in the therapy of Parkinson's disease (PD). While endocannabinoids are neuromodulators that act through the CB1 and CB2 cannabinoid receptors, the renin angiotensin-system is relevant for regulation of the correct functioning of several brain circuits. Resonance energy transfer assays in a heterologous system showed that the CB1 receptor (CB1R) can directly interact with the angiotensin AT2 receptor (AT2R). Coactivation of the two receptors results in increased Gi-signaling. The AT2-CB1 receptor heteromer imprint consists of a blockade of AT2R-mediated signaling by rimonabant, a CB1R antagonist. Interestingly, the heteromer imprint, discovered in the heterologous system, was also found in primary striatal neurons thus demonstrating the expression of the heteromer in these cells. In situ proximity ligation assays confirmed the occurrence of AT2-CB1 receptor heteromers in striatal neurons. In addition, increased expression of the AT2-CB1 receptor heteromeric complexes was detected in the striatum of a rodent PD model consisting of rats hemilesioned using 6-hydroxydopamine. Expression of the heteromer was upregulated in the striatum of lesioned animals and, also, of lesioned animals that upon levodopa treatment became dyskinetic. In contrast, there was no upregulation in the striatum of lesioned rats that did not become dyskinetic upon chronic levodopa treatment. The results suggest that therapeutic developments focused on the CB1R should consider that this receptor can interact with the AT2R, which in the CNS is involved in mechanisms related to addictive behaviors and to neurodegenerative and neuroinflammatory diseases.
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Affiliation(s)
- Rafael Rivas-Santisteban
- Department of Biochemistry and Physiology, School of Pharmacy and Food Science, Universitat de Barcelona, Barcelona, Spain; CiberNed. Network Center for Neurodegenerative diseases, National Spanish Health Institute Carlos III, Madrid, Spain
| | - Jaume Lillo
- Department of Biochemistry and Physiology, School of Pharmacy and Food Science, Universitat de Barcelona, Barcelona, Spain; CiberNed. Network Center for Neurodegenerative diseases, National Spanish Health Institute Carlos III, Madrid, Spain
| | - Iu Raïch
- Department of Biochemistry and Physiology, School of Pharmacy and Food Science, Universitat de Barcelona, Barcelona, Spain; CiberNed. Network Center for Neurodegenerative diseases, National Spanish Health Institute Carlos III, Madrid, Spain
| | - Ana Muñoz
- CiberNed. Network Center for Neurodegenerative diseases, National Spanish Health Institute Carlos III, Madrid, Spain; Laboratory of Cellular and Molecular Neurobiology of Parkinson's Disease, Research Center for Molecular Medicine and Chronic Diseases (CIMUS), Department of Morphological Sciences, Health Research Institute of Santiago de Compostela (IDIS), University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Alejandro Lillo
- Department of Biochemistry and Physiology, School of Pharmacy and Food Science, Universitat de Barcelona, Barcelona, Spain; CiberNed. Network Center for Neurodegenerative diseases, National Spanish Health Institute Carlos III, Madrid, Spain
| | - Ana I Rodríguez-Pérez
- CiberNed. Network Center for Neurodegenerative diseases, National Spanish Health Institute Carlos III, Madrid, Spain; Laboratory of Cellular and Molecular Neurobiology of Parkinson's Disease, Research Center for Molecular Medicine and Chronic Diseases (CIMUS), Department of Morphological Sciences, Health Research Institute of Santiago de Compostela (IDIS), University of Santiago de Compostela, Santiago de Compostela, Spain
| | - José L Labandeira-García
- CiberNed. Network Center for Neurodegenerative diseases, National Spanish Health Institute Carlos III, Madrid, Spain; Laboratory of Cellular and Molecular Neurobiology of Parkinson's Disease, Research Center for Molecular Medicine and Chronic Diseases (CIMUS), Department of Morphological Sciences, Health Research Institute of Santiago de Compostela (IDIS), University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Gemma Navarro
- Department of Biochemistry and Physiology, School of Pharmacy and Food Science, Universitat de Barcelona, Barcelona, Spain; CiberNed. Network Center for Neurodegenerative diseases, National Spanish Health Institute Carlos III, Madrid, Spain; Neurosciences Institute, University of Barcelona (NeuroUB), Facultad de Psicología Campus de Mundet Paseo de la Vall d'Hebron, 171 08035 Barcelona, Spain.
| | - Rafael Franco
- CiberNed. Network Center for Neurodegenerative diseases, National Spanish Health Institute Carlos III, Madrid, Spain; Molecular Neurobiology laboratory, Department of Biochemistry and Molecular Biomedicine, Faculty of Biology, Universitat de Barcelona, Barcelona, Spain; School of Chemistry, Universitat de Barcelona, Barcelona, Spain.
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4
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Stella N. THC and CBD: Similarities and differences between siblings. Neuron 2023; 111:302-327. [PMID: 36638804 PMCID: PMC9898277 DOI: 10.1016/j.neuron.2022.12.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 09/14/2022] [Accepted: 12/13/2022] [Indexed: 01/13/2023]
Abstract
Δ9-tetrahydrocannabinol (THC) and its sibling, cannabidiol (CBD), are produced by the same Cannabis plant and have similar chemical structures but differ dramatically in their mechanisms of action and effects on brain functions. Both THC and CBD exhibit promising therapeutic properties; however, impairments and increased incidence of mental health diseases are associated with acute and chronic THC use, respectively, and significant side effects are associated with chronic use of high-dose CBD. This review covers recent molecular and preclinical discoveries concerning the distinct mechanisms of action and bioactivities of THC and CBD and their impact on human behavior and diseases. These discoveries provide a foundation for the development of cannabinoid-based therapeutics for multiple devastating diseases and to assure their safe use in the growing legal market of Cannabis-based products.
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Affiliation(s)
- Nephi Stella
- Department of Pharmacology, Department Psychiatry and Behavioral Sciences, Center for Cannabis Research, Center for the Neurobiology of Addiction, Pain, and Emotion, University of Washington School of Medicine, Seattle, WA 98195, USA
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Bernal‐Chico A, Tepavcevic V, Manterola A, Utrilla C, Matute C, Mato S. Endocannabinoid signaling in brain diseases: Emerging relevance of glial cells. Glia 2023; 71:103-126. [PMID: 35353392 PMCID: PMC9790551 DOI: 10.1002/glia.24172] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 02/15/2022] [Accepted: 03/17/2022] [Indexed: 02/06/2023]
Abstract
The discovery of cannabinoid receptors as the primary molecular targets of psychotropic cannabinoid Δ9 -tetrahydrocannabinol (Δ9 -THC) in late 1980s paved the way for investigations on the effects of cannabis-based therapeutics in brain pathology. Ever since, a wealth of results obtained from studies on human tissue samples and animal models have highlighted a promising therapeutic potential of cannabinoids and endocannabinoids in a variety of neurological disorders. However, clinical success has been limited and major questions concerning endocannabinoid signaling need to be satisfactorily addressed, particularly with regard to their role as modulators of glial cells in neurodegenerative diseases. Indeed, recent studies have brought into the limelight diverse, often unexpected functions of astrocytes, oligodendrocytes, and microglia in brain injury and disease, thus providing scientific basis for targeting glial cells to treat brain disorders. This Review summarizes the current knowledge on the molecular and cellular hallmarks of endocannabinoid signaling in glial cells and its clinical relevance in neurodegenerative and chronic inflammatory disorders.
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Affiliation(s)
- Ana Bernal‐Chico
- Department of NeurosciencesUniversity of the Basque Country UPV/EHULeioaSpain,Achucarro Basque Center for NeuroscienceLeioaSpain,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)MadridSpain,Neuroimmunology UnitBiocruces BizkaiaBarakaldoSpain
| | | | - Andrea Manterola
- Department of NeurosciencesUniversity of the Basque Country UPV/EHULeioaSpain,Achucarro Basque Center for NeuroscienceLeioaSpain,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)MadridSpain,Present address:
Parque Científico y Tecnológico de GuipuzkoaViralgenSan SebastianSpain
| | | | - Carlos Matute
- Department of NeurosciencesUniversity of the Basque Country UPV/EHULeioaSpain,Achucarro Basque Center for NeuroscienceLeioaSpain,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)MadridSpain
| | - Susana Mato
- Department of NeurosciencesUniversity of the Basque Country UPV/EHULeioaSpain,Achucarro Basque Center for NeuroscienceLeioaSpain,Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)MadridSpain,Neuroimmunology UnitBiocruces BizkaiaBarakaldoSpain
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6
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Martinez Ramirez CE, Ruiz-Pérez G, Stollenwerk TM, Behlke C, Doherty A, Hillard CJ. Endocannabinoid signaling in the central nervous system. Glia 2023; 71:5-35. [PMID: 36308424 PMCID: PMC10167744 DOI: 10.1002/glia.24280] [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: 02/01/2022] [Revised: 09/02/2022] [Accepted: 09/29/2022] [Indexed: 11/07/2022]
Abstract
It is hard to overestimate the influence of the endocannabinoid signaling (ECS) system on central nervous system (CNS) function. In the 40 years since cannabinoids were found to trigger specific cell signaling cascades, studies of the ECS system continue to cause amazement, surprise, and confusion! CB1 cannabinoid receptors are expressed widely in the CNS and regulate cell-cell communication via effects on the release of both neurotransmitters and gliotransmitters. CB2 cannabinoid receptors are difficult to detect in the CNS but seem to "punch above their weight" as compounds targeting these receptors have significant effects on inflammatory state and behavior. Positive and negative allosteric modulators for both receptors have been identified and examined in preclinical studies. Concentrations of the endocannabinoid ligands, N-arachidonoylethanolamine and 2-arachidonoylglycerol (2-AG), are regulated by a combination of enzymatic synthesis and degradation and inhibitors of these processes are available and making their way into clinical trials. Importantly, ECS regulates many essential brain functions, including regulation of reward, anxiety, inflammation, motor control, and cellular development. While the field is on the cusp of preclinical discoveries providing impactful clinical and therapeutic insights into many CNS disorders, there is still much to be learned about this remarkable and versatile modulatory system.
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Affiliation(s)
- César E Martinez Ramirez
- Neuroscience Research Center and Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Gonzalo Ruiz-Pérez
- Neuroscience Research Center and Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Todd M Stollenwerk
- Neuroscience Research Center and Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Christina Behlke
- Neuroscience Research Center and Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Ashley Doherty
- Neuroscience Research Center and Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Cecilia J Hillard
- Neuroscience Research Center and Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
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7
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Costas‐Insua C, Guzmán M. Endocannabinoid signaling in glioma. Glia 2023; 71:127-138. [PMID: 35322459 PMCID: PMC9790654 DOI: 10.1002/glia.24173] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/16/2022] [Accepted: 03/17/2022] [Indexed: 12/30/2022]
Abstract
High-grade gliomas constitute the most frequent and aggressive form of primary brain cancer in adults. These tumors express cannabinoid CB1 and CB2 receptors, as well as other elements of the endocannabinoid system. Accruing preclinical evidence supports that pharmacological activation of cannabinoid receptors located on glioma cells exerts overt anti-tumoral effects by modulating key intracellular signaling pathways. The mechanism of this cannabinoid receptor-evoked anti-tumoral activity in experimental models of glioma is intricate and may involve an inhibition not only of cancer cell survival/proliferation, but also of invasiveness, angiogenesis, and the stem cell-like properties of cancer cells, thereby affecting the complex tumor microenvironment. However, the precise biological role of the endocannabinoid system in the generation and progression of glioma seems very context-dependent and remains largely unknown. Increasing our basic knowledge on how (endo)cannabinoids act on glioma cells could help to optimize experimental cannabinoid-based anti-tumoral therapies, as well as the preliminary clinical testing that is currently underway.
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Affiliation(s)
- Carlos Costas‐Insua
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)MadridSpain,Department of Biochemistry and Molecular BiologyInstituto Universitario de Investigación Neuroquímica (IUIN), Complutense UniversityMadridSpain,Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS)MadridSpain
| | - Manuel Guzmán
- Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED)MadridSpain,Department of Biochemistry and Molecular BiologyInstituto Universitario de Investigación Neuroquímica (IUIN), Complutense UniversityMadridSpain,Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS)MadridSpain
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Wu M, Di Y, Diao Z, Yan C, Cheng Q, Huang H, Liu Y, Wei C, Zheng Q, Fan J, Han J, Liu Z, Tian Y, Duan H, Ren W, Sun Z. Acute cannabinoids impair association learning via selectively enhancing synaptic transmission in striatonigral neurons. BMC Biol 2022; 20:108. [PMID: 35550070 PMCID: PMC9102575 DOI: 10.1186/s12915-022-01307-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 04/22/2022] [Indexed: 11/30/2022] Open
Abstract
Background Cannabinoids and their derivatives attract strong interest due to the tremendous potential of their psychoactive effects for treating psychiatric disorders and symptoms. However, their clinical application is restricted by various side-effects such as impaired coordination, anxiety, and learning and memory disability. Adverse impact on dorsal striatum-dependent learning is an important side-effect of cannabinoids. As one of the most important forms of learning mediated by the dorsal striatum, reinforcement learning is characterized by an initial association learning phase, followed by habit learning. While the effects of cannabinoids on habit learning have been well-studied, little is known about how cannabinoids influence the initial phase of reinforcement learning. Results We found that acute activation of cannabinoid receptor type 1 (CB1R) by the synthetic cannabinoid HU210 induced dose-dependent impairment of association learning, which could be alleviated by intra-dorsomedial striatum (DMS) injection of CB1R antagonist. Moreover, acute exposure to HU210 elicited enhanced synaptic transmission in striatonigral “direct” pathway medium spiny neurons (MSNs) but not indirect pathway neurons in DMS. Intriguingly, enhancement of synaptic transmission that is also observed after learning was abolished by HU210, indicating cannabinoid system might disrupt reinforcement learning by confounding synaptic plasticity normally required for learning. Remarkably, the impaired response-reinforcer learning was also induced by selectively enhancing the D1-MSN (MSN that selectively expresses the dopamine receptor type 1) activity by virally expressing excitatory hM3Dq DREADD (designer receptor exclusively activated by a designer drug), which could be rescued by specifically silencing the D1-MSN activity via hM4Di DREADD. Conclusion Our findings demonstrate dose-dependent deleterious effects of cannabinoids on association learning by disrupting plasticity change required for learning associated with the striatal direct pathway, which furthers our understanding of the side-effects of cannabinoids and the underlying mechanisms. Supplementary Information The online version contains supplementary material available at 10.1186/s12915-022-01307-1.
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Affiliation(s)
- Meilin Wu
- MOE Key Laboratory of Modern Teaching Technology, Shaanxi Normal University, Xi'an, 710062, China
| | - Yuanyuan Di
- MOE Key Laboratory of Modern Teaching Technology, Shaanxi Normal University, Xi'an, 710062, China
| | - Zhijun Diao
- MOE Key Laboratory of Modern Teaching Technology, Shaanxi Normal University, Xi'an, 710062, China
| | - Chuanting Yan
- MOE Key Laboratory of Modern Teaching Technology, Shaanxi Normal University, Xi'an, 710062, China
| | - Qiangqiang Cheng
- College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, China
| | - Huan Huang
- School of Psychology, Shaanxi Normal University, Xi'an, 710062, China
| | - Yingxun Liu
- MOE Key Laboratory of Modern Teaching Technology, Shaanxi Normal University, Xi'an, 710062, China
| | - Chunling Wei
- MOE Key Laboratory of Modern Teaching Technology, Shaanxi Normal University, Xi'an, 710062, China
| | - Qiaohua Zheng
- MOE Key Laboratory of Modern Teaching Technology, Shaanxi Normal University, Xi'an, 710062, China
| | - Juan Fan
- College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, China
| | - Jing Han
- MOE Key Laboratory of Modern Teaching Technology, Shaanxi Normal University, Xi'an, 710062, China
| | - Zhiqiang Liu
- MOE Key Laboratory of Modern Teaching Technology, Shaanxi Normal University, Xi'an, 710062, China
| | - Yingfang Tian
- College of Life Sciences, Shaanxi Normal University, Xi'an, 710062, China
| | - Haijun Duan
- MOE Key Laboratory of Modern Teaching Technology, Shaanxi Normal University, Xi'an, 710062, China
| | - Wei Ren
- MOE Key Laboratory of Modern Teaching Technology, Shaanxi Normal University, Xi'an, 710062, China. .,School of Education, Shaanxi Normal University, Xi'an, 710062, China.
| | - Zongpeng Sun
- School of Psychology, Shaanxi Normal University, Xi'an, 710062, China.
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9
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Ramon-Duaso C, Conde-Moro AR, Busquets-Garcia A. Astroglial cannabinoid signaling and behavior. Glia 2022; 71:60-70. [PMID: 35293647 DOI: 10.1002/glia.24171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/07/2022] [Accepted: 03/10/2022] [Indexed: 11/11/2022]
Abstract
In neuroscience, the explosion of innovative and advanced technical accomplishments is fundamental to understanding brain functioning. For example, the possibility to distinguish glial and neuronal activities at the synaptic level and/or the appearance of new genetic tools to specifically monitor and manipulate astroglial functions revealed that astrocytes are involved in several facets of behavioral control. In this sense, the discovery of functional presence of type-1 cannabinoid receptors in astrocytes has led to identify important behavioral responses mediated by this specific pool of cannabinoid receptors. Thus, astroglial type-1 cannabinoid receptors are in the perfect place to play a role in a complex scenario in which astrocytes sense neuronal activity, release gliotransmitters and modulate the activity of other neurons, ultimately controlling behavioral responses. In this review, we will describe the known behavioral implications of astroglial cannabinoid signaling and highlight exciting unexplored research avenues on how astroglial cannabinoid signaling could affect behavior.
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Affiliation(s)
- Carla Ramon-Duaso
- Cell-Type Mechanisms in Normal and Pathological Behavior Research Group, Neuroscience Programme, IMIM Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Ana Rocio Conde-Moro
- Cell-Type Mechanisms in Normal and Pathological Behavior Research Group, Neuroscience Programme, IMIM Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Arnau Busquets-Garcia
- Cell-Type Mechanisms in Normal and Pathological Behavior Research Group, Neuroscience Programme, IMIM Hospital del Mar Medical Research Institute, Barcelona, Spain
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10
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On the Biomedical Properties of Endocannabinoid Degradation and Reuptake Inhibitors: Pre-clinical and Clinical Evidence. Neurotox Res 2021; 39:2072-2097. [PMID: 34741755 DOI: 10.1007/s12640-021-00424-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/14/2021] [Accepted: 09/28/2021] [Indexed: 10/19/2022]
Abstract
The endocannabinoid system (ECS) is composed of endogenous cannabinoids; components involved in their synthesis, transport, and degradation; and an expansive variety of cannabinoid receptors. Hypofunction or deregulation of the ECS is related to pathological conditions. Consequently, endogenous enhancement of endocannabinoid levels and/or regulation of their metabolism represent promising therapeutic approaches. Several major strategies have been suggested for the modulation of the ECS: (1) blocking endocannabinoids degradation, (2) inhibition of endocannabinoid cellular uptake, and (3) pharmacological modulation of cannabinoid receptors as potential therapeutic targets. Here, we focused in this review on degradation/reuptake inhibitors over cannabinoid receptor modulators in order to provide an updated synopsis of contemporary evidence advancing mechanisms of endocannabinoids as pharmacological tools with therapeutic properties for the treatment of several disorders. For this purpose, we revisited the available literature and reported the latest advances regarding the biomedical properties of fatty acid amide hydrolase and monoacylglycerol lipase inhibitors in pre-clinical and clinical studies. We also highlighted anandamide and 2-arachidonoylglycerol reuptake inhibitors with promising results in pre-clinical studies using in vitro and animal models as an outlook for future research in clinical trials.
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11
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Deng L, Viray K, Singh S, Cravatt B, Stella N. ABHD6 Controls Amphetamine-Stimulated Hyperlocomotion: Involvement of CB 1 Receptors. Cannabis Cannabinoid Res 2021; 7:188-198. [PMID: 34705543 PMCID: PMC9070749 DOI: 10.1089/can.2021.0066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Introduction: Activation of cannabinoid 1 receptors (CB1Rs) by endocannabinoids (eCBs) is controlled by both eCB production and eCB inactivation. Accordingly, inhibition of eCB hydrolyzing enzymes, monoacylglycerol lipase (MAGL) and α/β-hydrolase domain containing 6 (ABHD6), enhances eCB accumulation and CB1R activation. It is known that inhibition of MAGL regulates select CB1R-dependent behaviors in mice, including locomotor behaviors and their modulation by psychostimulants, but much less is known about the effect of inhibiting ABHD6 activity on such behaviors. Methods: We report a new mouse line that carries a genetic deletion of Abhd6 and evaluated its effect on spontaneous locomotion measured in a home cage monitoring system, motor coordination measured on a Rotarod, and amphetamine-stimulated hyperlocomotion and amphetamine sensitization (AS) measured in an open-field chamber. Results: ABHD6 knockout (KO) mice reached adulthood without exhibiting overt behavioral impairment, and we measured only mild reduction in spontaneous locomotion and motor coordination in adult ABHD6 KO mice compared to wild-type (WT) mice. Significantly, amphetamine-stimulated hyperlocomotion was enhanced by twofold in ABHD6 KO mice compared to WT mice and yet ABHD6 KO mice expressed AS to the same extent as WT mice. A twofold increase in amphetamine-stimulated hyperlocomotion was also measured in ABHD6 heterozygote mice and in WT mice treated with the ABHD6 inhibitor KT-182. It is known that amphetamine-stimulated hyperlocomotion is not affected by the CB1R antagonist, SR141617, and we discovered that the enhanced amphetamine-stimulated hyperlocomotion resulting from ABHD6 inhibition is blocked by SR141617. Conclusions: Our study suggests that ABHD6 controls amphetamine-stimulated hyperlocomotion by a mechanistic switch to a CB1R-dependent mechanism.
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Affiliation(s)
- Liting Deng
- Department of Pharmacology, University of Washington School of Medicine, Seattle, Washington, USA
| | - Katie Viray
- Department of Pharmacology, University of Washington School of Medicine, Seattle, Washington, USA
| | - Simar Singh
- Department of Pharmacology, University of Washington School of Medicine, Seattle, Washington, USA
| | - Ben Cravatt
- Department of Chemistry, The Scripps Research Institute, La Jolla, California, USA
| | - Nephi Stella
- Department of Pharmacology, University of Washington School of Medicine, Seattle, Washington, USA.,Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, Washington, USA
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12
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Zanfirescu A, Ungurianu A, Mihai DP, Radulescu D, Nitulescu GM. Targeting Monoacylglycerol Lipase in Pursuit of Therapies for Neurological and Neurodegenerative Diseases. Molecules 2021; 26:5668. [PMID: 34577139 PMCID: PMC8468992 DOI: 10.3390/molecules26185668] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/11/2021] [Accepted: 09/15/2021] [Indexed: 11/17/2022] Open
Abstract
Neurological and neurodegenerative diseases are debilitating conditions, and frequently lack an effective treatment. Monoacylglycerol lipase (MAGL) is a key enzyme involved in the metabolism of 2-AG (2-arachidonoylglycerol), a neuroprotective endocannabinoid intimately linked to the generation of pro- and anti-inflammatory molecules. Consequently, synthesizing selective MAGL inhibitors has become a focus point in drug design and development. The purpose of this review was to summarize the diverse synthetic scaffolds of MAGL inhibitors concerning their potency, mechanisms of action and potential therapeutic applications, focusing on the results of studies published in the past five years. The main irreversible inhibitors identified were derivatives of hexafluoroisopropyl alcohol carbamates, glycol carbamates, azetidone triazole ureas and benzisothiazolinone, whereas the most promising reversible inhibitors were derivatives of salicylketoxime, piperidine, pyrrolidone and azetidinyl amides. We reviewed the results of in-depth chemical, mechanistic and computational studies on MAGL inhibitors, in addition to the results of in vitro findings concerning selectivity and potency of inhibitors, using the half maximal inhibitory concentration (IC50) as an indicator of their effect on MAGL. Further, for highlighting the potential usefulness of highly selective and effective inhibitors, we examined the preclinical in vivo reports regarding the promising therapeutic applications of MAGL pharmacological inhibition.
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Affiliation(s)
| | - Anca Ungurianu
- Faculty of Pharmacy, “Carol Davila” University of Medicine and Pharmacy, Traian Vuia 6, 020956 Bucharest, Romania; (A.Z.); (D.P.M.); (D.R.); (G.M.N.)
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13
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Pérez-Olives C, Rivas-Santisteban R, Lillo J, Navarro G, Franco R. Recent Advances in the Potential of Cannabinoids for Neuroprotection in Alzheimer's, Parkinson's, and Huntington's Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1264:81-92. [PMID: 33332005 DOI: 10.1007/978-3-030-57369-0_6] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Three prevalent neurodegenerative diseases, Parkinson's, Alzheimer's, and Huntington's are in need of symptomatic relief of slowing disease progression or both. This chapter focuses on the potential of cannabinoids to afford neuroprotection, i.e. avoid or retard neuronal death. The neuroprotective potential of cannabinoids is known from the work in animal models and is mediated by the two cannabinoid receptors (CB1/CB2) and eventually, by their heteromers, GPR55, orphan receptors (GPR3/GPR6/GPR12/GPR18), or PPARγ. Now, there is the time to translate the findings into patients. The chapter takes primarily into account advances since 2016 and addresses the issue of proving neuroprotection in humans. One recent discovery is the existence of activated microglia with neuroprotective phenotype; cannabinoids are good candidates to skew phenotype, especially via glial CB2 receptors (CB2R), whose targeting has, a priori, less side effects those targeting the CBs1 receptor (CB1R), which are expressed in both neurons and glia. The fact that a cannabis extract (SativexTM) is approved for human therapy, such that cannabis use will likely be legalized in many countries and different possibilities that cannabinoid pharmacology suggests a successful route of cannabinoids (natural or synthetic) all the way to be approved and used in the treatment of neurodegeneration.
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Affiliation(s)
- Catalina Pérez-Olives
- Molecular Neurobiology laboratory, Department of Biochemistry and Molecular Biomedicine, Universitat de Barcelona, Barcelona, Spain
| | - Rafael Rivas-Santisteban
- Molecular Neurobiology laboratory, Department of Biochemistry and Molecular Biomedicine, Universitat de Barcelona, Barcelona, Spain.,Centro de Investigación en Red, Enfermedades Neurodegenerativas (CIBERNED). Instituto de Salud Carlos III, Madrid, Spain
| | - Jaume Lillo
- Molecular Neurobiology laboratory, Department of Biochemistry and Molecular Biomedicine, Universitat de Barcelona, Barcelona, Spain.,Centro de Investigación en Red, Enfermedades Neurodegenerativas (CIBERNED). Instituto de Salud Carlos III, Madrid, Spain
| | - Gemma Navarro
- Centro de Investigación en Red, Enfermedades Neurodegenerativas (CIBERNED). Instituto de Salud Carlos III, Madrid, Spain. .,Department Biochemistry and Physiology. Faculty of Pharmacy and Food Sciences, Universitat de Barcelona, Barcelona, Spain.
| | - Rafael Franco
- Molecular Neurobiology laboratory, Department of Biochemistry and Molecular Biomedicine, Universitat de Barcelona, Barcelona, Spain. .,Centro de Investigación en Red, Enfermedades Neurodegenerativas (CIBERNED). Instituto de Salud Carlos III, Madrid, Spain.
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14
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Novosadova E, Antonov S, Arsenyeva E, Kobylanskiy A, Vanyushina Y, Malova T, Khaspekov L, Bobrov M, Bezuglov V, Tarantul V, Illarioshkin S, Grivennikov I. Neuroprotective and neurotoxic effects of endocannabinoid-like compounds, N-arachidonoyl dopamine and N-docosahexaenoyl dopamine in differentiated cultures of induced pluripotent stem cells derived from patients with Parkinson's disease. Neurotoxicology 2020; 82:108-118. [PMID: 33248189 DOI: 10.1016/j.neuro.2020.11.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 11/17/2020] [Accepted: 11/23/2020] [Indexed: 12/29/2022]
Abstract
The prominent protective effects in diverse neuron injury paradigms exerted by cannabinoids and in particular their endogenously produced species render the endocannabinoid system a promising molecular target in the treatment of neurodegenerative diseases. However, the effects of individual endocannabinoids in human cells remain poorly investigated. Neural derivatives of human induced pluripotent stem cells (iPSC) offer unique opportunities for studying the neuroprotective compounds and development of patient-specific treatment. For the first time the cytotoxic and neuroprotective effects endocannabinoids N-arachidonoyl dopamine (N-ADA) and N-docosahexaenoyl dopamine (N-DDA) were assessed in human neural progenitors and dopamine neurons derived from iPSCs of healthy donors and patients with Parkinson's disease. While the short-term treatment with the investigated compounds in 0.1-10 μM concentration range exerted no toxicity in these cell types, the long-term exposure to 0.1-5 μM N-ADA or N-DDA reduced the survival of human neural progenitors. At the same time, both N-ADA and N-DDA protected neural progenitors and terminally differentiated neurons both from healthy donors and patients with Parkinson's disease against oxidative stress induced by hydrogen peroxide. The observed dramatic difference in the mode of action of N-acyl dopamines points on the possible existence of novel pathogenic mechanism of neurodegeneration induced by prolonged uncompensated production of these substances within neuronal tissue and should also be considered as a precaution in the future development of N-acyl dopamine-based therapeutic drugs.
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Affiliation(s)
- Ekaterina Novosadova
- National Research Center, Kurchatov Institute, Institute of Molecular Genetics, Moscow 123182, Russia.
| | - Stanislav Antonov
- National Research Center, Kurchatov Institute, Institute of Molecular Genetics, Moscow 123182, Russia.
| | - Elena Arsenyeva
- National Research Center, Kurchatov Institute, Institute of Molecular Genetics, Moscow 123182, Russia.
| | - Andrey Kobylanskiy
- National Research Center, Kurchatov Institute, Institute of Molecular Genetics, Moscow 123182, Russia.
| | - Yulia Vanyushina
- National Research Center, Kurchatov Institute, Institute of Molecular Genetics, Moscow 123182, Russia.
| | - Tatyana Malova
- National Research Center, Kurchatov Institute, Institute of Molecular Genetics, Moscow 123182, Russia.
| | | | - Mikhail Bobrov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of RAS, 117997 Moscow, Russia; Kulakov Recearh Center of Obstetrics, Gynecology and Perinatology of Ministry of Health of the Russian Federation 117997 Moscow, Russia.
| | - Vladimir Bezuglov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of RAS, 117997 Moscow, Russia.
| | - Vyacheslav Tarantul
- National Research Center, Kurchatov Institute, Institute of Molecular Genetics, Moscow 123182, Russia
| | | | - Igor Grivennikov
- National Research Center, Kurchatov Institute, Institute of Molecular Genetics, Moscow 123182, Russia.
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15
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Serum endocannabinoid levels in suicide attempters: A pilot study. Eur Neuropsychopharmacol 2020; 40:52-60. [PMID: 32994115 DOI: 10.1016/j.euroneuro.2020.09.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 07/28/2020] [Accepted: 09/14/2020] [Indexed: 11/21/2022]
Abstract
The search for a biomarker for suicide risk is a longstanding pursuit in clinical psychiatry. Literature addressing the role of endocannabinoids in suicide attempters (SA) is sparse. This cross-sectional study is aimed at comparing 8 AM serum concentrations of 4 endogenous cannabinoids (anandamide, AEA; 2-arachidonoylglycerol, 2-AG; N-palmitoiletanolamida, PEA; and oleoylethanolamide, OEA) in 30 suicide attempters (SA) and 12 psychiatric controls (PC). 8 AM AEA and PEA serum levels were higher in SA compared to PC without controlling for cannabis use (n = 42) (3.58 ± 5.77 vs. 1.62 ± 2.49, F = 3.04, P = 0.089; and 3.31 ± 4.82 vs. 1.21 ± 1.20, F = 6.22, p = 0.017, respectively). Serum ACTH was higher in PC compared to SA (32.11 ± 21.60 vs. 20.05 ± 9.96, F = 9.031, p = 0.0.005). After controlling for cannabis use in the urine test (n = 28), 8 AM AEA and PEA serum levels remained higher in SA compared to PC (4.57 ± 6.38 vs. 0.64 ± 1.11, F = 4.852, P = 0.037; and 4.35 ± 5.46 vs. 1.21 ± 1.25, F = 4.125, p = 0.053, respectively). The present study offers preliminary evidence about the role of AEA and PEA in suicidal behavior (SB). Furthermore, in the context of the mental pain model of SB, our findings suggest that some endocannabinoids may play a role in the pathophysiology of SB. Our pilot study deserves replication by other studies with bigger sample sizes.
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16
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Lourenço DM, Ribeiro-Rodrigues L, Sebastião AM, Diógenes MJ, Xapelli S. Neural Stem Cells and Cannabinoids in the Spotlight as Potential Therapy for Epilepsy. Int J Mol Sci 2020; 21:E7309. [PMID: 33022963 PMCID: PMC7582633 DOI: 10.3390/ijms21197309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 09/28/2020] [Accepted: 09/30/2020] [Indexed: 01/18/2023] Open
Abstract
Epilepsy is one of the most common brain diseases worldwide, having a huge burden in society. The main hallmark of epilepsy is the occurrence of spontaneous recurrent seizures, having a tremendous impact on the lives of the patients and of their relatives. Currently, the therapeutic strategies are mostly based on the use of antiepileptic drugs, and because several types of epilepsies are of unknown origin, a high percentage of patients are resistant to the available pharmacotherapy, continuing to experience seizures overtime. Therefore, the search for new drugs and therapeutic targets is highly important. One key aspect to be targeted is the aberrant adult hippocampal neurogenesis (AHN) derived from Neural Stem Cells (NSCs). Indeed, targeting seizure-induced AHN may reduce recurrent seizures and shed some light on the mechanisms of disease. The endocannabinoid system is a known modulator of AHN, and due to the known endogenous antiepileptic properties, it is an interesting candidate for the generation of new antiepileptic drugs. However, further studies and clinical trials are required to investigate the putative mechanisms by which cannabinoids can be used to treat epilepsy. In this manuscript, we will review how cannabinoid-induced modulation of NSCs may promote neural plasticity and whether these drugs can be used as putative antiepileptic treatment.
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Affiliation(s)
- Diogo M. Lourenço
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal; (D.M.L.); (L.R.-R.); (A.M.S.); (M.J.D.)
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Leonor Ribeiro-Rodrigues
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal; (D.M.L.); (L.R.-R.); (A.M.S.); (M.J.D.)
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Ana M. Sebastião
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal; (D.M.L.); (L.R.-R.); (A.M.S.); (M.J.D.)
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Maria J. Diógenes
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal; (D.M.L.); (L.R.-R.); (A.M.S.); (M.J.D.)
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
| | - Sara Xapelli
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal; (D.M.L.); (L.R.-R.); (A.M.S.); (M.J.D.)
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, 1649-028 Lisboa, Portugal
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