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Moore JC, Modell L, Glenn JR, Jones KD, Argent SP, Lane JR, Canals M, Lam HW. Enantioselective de novo synthesis of 14-hydroxy-6-oxomorphinans. Chem Commun (Camb) 2024; 60:6007-6010. [PMID: 38787679 PMCID: PMC11155717 DOI: 10.1039/d4cc01788a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024]
Abstract
The enantioselective de novo synthesis of pharmacologically important 14-hydroxy-6-oxomorphinans is described. 4,5-Desoxynaltrexone and 4,5-desoxynaloxone were prepared using this route and their biological activities against the opioid receptors were measured.
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Affiliation(s)
- Jonathan C Moore
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham, Jubilee Campus, Triumph Road, Nottingham, NG7 2TU, UK.
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Louis Modell
- School of Pharmacy, University of Nottingham Biodiscovery Institute, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Jacqueline R Glenn
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, Queen's Medical Centre, University of Nottingham, Nottingham, NG7 2UH, UK
- Centre of Membrane Protein and Receptors, Universities of Birmingham and Nottingham, The Midlands, UK
| | - Kieran D Jones
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham, Jubilee Campus, Triumph Road, Nottingham, NG7 2TU, UK.
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - Stephen P Argent
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - J Robert Lane
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, Queen's Medical Centre, University of Nottingham, Nottingham, NG7 2UH, UK
- Centre of Membrane Protein and Receptors, Universities of Birmingham and Nottingham, The Midlands, UK
| | - Meritxell Canals
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, Queen's Medical Centre, University of Nottingham, Nottingham, NG7 2UH, UK
- Centre of Membrane Protein and Receptors, Universities of Birmingham and Nottingham, The Midlands, UK
| | - Hon Wai Lam
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham, Jubilee Campus, Triumph Road, Nottingham, NG7 2TU, UK.
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
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2
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Yang Y, Chen J, Shi Y, Liu P, Feng Y, Peng Q, Xu S. Catalytic Enantioselective Primary C-H Borylation for Acyclic All-Carbon Quaternary Stereocenters. J Am Chem Soc 2024; 146:1635-1643. [PMID: 38182551 DOI: 10.1021/jacs.3c12266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2024]
Abstract
Creating a perfect catalyst to operate enzyme-like chiral recognition has been a long-sought aim. A challenging example in this context is constructing acyclic all-carbon quaternary stereogenic centers by transition metal-catalyzed enantioselective C-H activation. We now report highly enantioselective iridium-catalyzed primary C-H borylation of α-all-carbon substituted 2,2-dimethyl amides enabled by a tailor-made chiral bidentate boryl ligand (CBL). The success of the current transformation is attributed to the CBL/iridium catalyst, which has a confined chiral pocket. This protocol provides a diverse array of acyclic all-carbon quaternary stereocenters with excellent enantiocontrol and distinct structural features. Computational study reveals that steric hindrance of CBL could regulate the type of dominant orbital interaction between the catalyst and substrate, which is crucial to conferring high chiral induction.
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Affiliation(s)
- Yuhuan Yang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Jingyao Chen
- State Key Laboratory of Elemento-Organic Chemistry, and Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yongjia Shi
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Peizhi Liu
- State Key Laboratory of Elemento-Organic Chemistry, and Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yuxiang Feng
- State Key Laboratory of Elemento-Organic Chemistry, and Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Qian Peng
- State Key Laboratory of Elemento-Organic Chemistry, and Tianjin Key Laboratory of Biosensing and Molecular Recognition, College of Chemistry, Nankai University, Tianjin 300071, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
| | - Senmiao Xu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- College of Material Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, China
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Rehrauer KJ, Cunningham CW. IUPHAR Review - Bivalent and bifunctional opioid receptor ligands as novel analgesics. Pharmacol Res 2023; 197:106966. [PMID: 37865129 DOI: 10.1016/j.phrs.2023.106966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/17/2023] [Accepted: 10/18/2023] [Indexed: 10/23/2023]
Abstract
Though efficacious in managing chronic, severe pain, opioid analgesics are accompanied by significant adverse effects including constipation, tolerance, dependence, and respiratory depression. The life-threatening risks associated with µ opioid receptor agonist-based analgesics challenges their use in clinic. A rational approach to combatting these adverse effects is to develop agents that incorporate activity at a second pharmacologic target in addition to µ opioid receptor activation. The promise of such bivalent or bifunctional ligands is the development of an analgesic with an improved side effect profile. In this review, we highlight ongoing efforts in the development of bivalent and bifunctional analgesics that combine µ agonism with efficacy at κ and δ opioid receptors, the nociceptin opioid peptide (NOP) receptor, σ receptors, and cannabinoid receptors. Several examples of bifunctional analgesics in preclinical and clinical development are highlighted, as are strategies being employed toward the rational design of novel agents.
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Affiliation(s)
- Kyle J Rehrauer
- Department of Pharmaceutical and Administrative Sciences, Concordia University Wisconsin School of Pharmacy, 12800 N. Lake Shore Drive, Mequon, WI 53092, USA
| | - Christopher W Cunningham
- Department of Pharmaceutical and Administrative Sciences, Concordia University Wisconsin School of Pharmacy, 12800 N. Lake Shore Drive, Mequon, WI 53092, USA; CUW Center for Structure-Based Drug Discovery and Development, Concordia University Wisconsin School of Pharmacy, 12800 N. Lake Shore Drive, Mequon, WI 53092, USA.
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Olson KM, Devereaux AL, Chatterjee P, Saldaña-Shumaker SL, Shafer A, Plotkin A, Kandasamy R, MacKerell AD, Traynor JR, Cunningham CW. Nitro-benzylideneoxymorphone, a bifunctional mu and delta opioid receptor ligand with high mu opioid receptor efficacy. Front Pharmacol 2023; 14:1230053. [PMID: 37469877 PMCID: PMC10352325 DOI: 10.3389/fphar.2023.1230053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 06/19/2023] [Indexed: 07/21/2023] Open
Abstract
Introduction: There is a major societal need for analgesics with less tolerance, dependence, and abuse liability. Preclinical rodent studies suggest that bifunctional ligands with both mu (MOPr) and delta (DOPr) opioid peptide receptor activity may produce analgesia with reduced tolerance and other side effects. This study explores the structure-activity relationships (SAR) of our previously reported MOPr/DOPr lead, benzylideneoxymorphone (BOM) with C7-methylene-substituted analogs. Methods: Analogs were synthesized and tested in vitro for opioid receptor binding and efficacy. One compound, nitro-BOM (NBOM, 12) was evaluated for antinociceptive effects in the warm water tail withdrawal assay in C57BL/6 mice. Acute and chronic antinociception was determined, as was toxicologic effects on chronic administration. Molecular modeling experiments were performed using the Site Identification by Ligand Competitive Saturation (SILCS) method. Results: NBOM was found to be a potent MOPr agonist/DOPr partial agonist that produces high-efficacy antinociception. Antinociceptive tolerance was observed, as was weight loss; this toxicity was only observed with NBOM and not with BOM. Modeling supports the hypothesis that the increased MOPr efficacy of NBOM is due to the substituted benzylidene ring occupying a nonpolar region within the MOPr agonist state. Discussion: Though antinociceptive tolerance and non-specific toxicity was observed on repeated administration, NBOM provides an important new tool for understanding MOPr/DOPr pharmacology.
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Affiliation(s)
- Keith M. Olson
- Department of Pharmacology and Edward F. Domino Research Center, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Andrea L. Devereaux
- Department of Pharmaceutical Sciences, Concordia University Wisconsin School of Pharmacy, Mequon, WI, United States
| | - Payal Chatterjee
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, United States
| | - Savanah L. Saldaña-Shumaker
- Department of Pharmaceutical Sciences, Concordia University Wisconsin School of Pharmacy, Mequon, WI, United States
| | - Amanda Shafer
- Department of Pharmacology and Edward F. Domino Research Center, University of Michigan Medical School, Ann Arbor, MI, United States
| | - Adam Plotkin
- Department of Pharmaceutical Sciences, Concordia University Wisconsin School of Pharmacy, Mequon, WI, United States
| | - Ram Kandasamy
- Department of Pharmacology and Edward F. Domino Research Center, University of Michigan Medical School, Ann Arbor, MI, United States
- Department of Psychology, California State University, East Bay, Hayward, CA, United States
| | - Alexander D. MacKerell
- Department of Pharmaceutical Sciences, University of Maryland School of Pharmacy, Baltimore, MD, United States
| | - John R. Traynor
- Department of Pharmacology and Edward F. Domino Research Center, University of Michigan Medical School, Ann Arbor, MI, United States
- Department of Medicinal Chemistry, College of Pharmacy, University of Michigan, Ann Arbor, MI, United States
| | - Christopher W. Cunningham
- Department of Pharmaceutical Sciences, Concordia University Wisconsin School of Pharmacy, Mequon, WI, United States
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Schmidhammer H, Al-Khrasani M, Fürst S, Spetea M. Peripheralization Strategies Applied to Morphinans and Implications for Improved Treatment of Pain. Molecules 2023; 28:4761. [PMID: 37375318 DOI: 10.3390/molecules28124761] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/02/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
Opioids are considered the most effective analgesics for the treatment of moderate to severe acute and chronic pain. However, the inadequate benefit/risk ratio of currently available opioids, together with the current 'opioid crisis', warrant consideration on new opioid analgesic discovery strategies. Targeting peripheral opioid receptors as effective means of treating pain and avoiding the centrally mediated side effects represents a research area of substantial and continuous attention. Among clinically used analgesics, opioids from the class of morphinans (i.e., morphine and structurally related analogues) are of utmost clinical importance as analgesic drugs activating the mu-opioid receptor. In this review, we focus on peripheralization strategies applied to N-methylmorphinans to limit their ability to cross the blood-brain barrier, thus minimizing central exposure and the associated undesired side effects. Chemical modifications to the morphinan scaffold to increase hydrophilicity of known and new opioids, and nanocarrier-based approaches to selectively deliver opioids, such as morphine, to the peripheral tissue are discussed. The preclinical and clinical research activities have allowed for the characterization of a variety of compounds that show low central nervous system penetration, and therefore an improved side effect profile, yet maintaining the desired opioid-related antinociceptive activity. Such peripheral opioid analgesics may represent alternatives to presently available drugs for an efficient and safer pain therapy.
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Affiliation(s)
- Helmut Schmidhammer
- Department of Pharmaceutical Chemistry, Institute of Pharmacy and Center for Molecular Biosciences (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
| | - Mahmoud Al-Khrasani
- Department of Pharmacology and Pharmacotherapy, Faculty of Medicine, Semmelweis University, Nagyvárad tér 4, H-1445 Budapest, Hungary
| | - Susanna Fürst
- Department of Pharmacology and Pharmacotherapy, Faculty of Medicine, Semmelweis University, Nagyvárad tér 4, H-1445 Budapest, Hungary
| | - Mariana Spetea
- Department of Pharmaceutical Chemistry, Institute of Pharmacy and Center for Molecular Biosciences (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
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Piperidine Derivatives: Recent Advances in Synthesis and Pharmacological Applications. Int J Mol Sci 2023; 24:ijms24032937. [PMID: 36769260 PMCID: PMC9917539 DOI: 10.3390/ijms24032937] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/27/2023] [Accepted: 01/29/2023] [Indexed: 02/05/2023] Open
Abstract
Piperidines are among the most important synthetic fragments for designing drugs and play a significant role in the pharmaceutical industry. Their derivatives are present in more than twenty classes of pharmaceuticals, as well as alkaloids. The current review summarizes recent scientific literature on intra- and intermolecular reactions leading to the formation of various piperidine derivatives: substituted piperidines, spiropiperidines, condensed piperidines, and piperidinones. Moreover, the pharmaceutical applications of synthetic and natural piperidines were covered, as well as the latest scientific advances in the discovery and biological evaluation of potential drugs containing piperidine moiety. This review is designed to help both novice researchers taking their first steps in this field and experienced scientists looking for suitable substrates for the synthesis of biologically active piperidines.
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Santos-Silva T, Lopes CFB, Guimarães JDS, Valer FB, Kuhn GCSE, Romero TRL, Naves LA, Duarte IDG. Classical analgesic drugs modulate nociceptive-like escape behavior in Drosophila melanogaster larvae. RESEARCH RESULTS IN PHARMACOLOGY 2022. [DOI: 10.3897/rrpharmacology.8.91390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Introduction: Nociceptive stimulus triggers escape responses in Drosophila melanogaster larvae, characterized by 360° rolling behavior along its own body axis. Therefore, it is possible to study analgesic drugs based on this stereotypical nociceptive-like escape behavior. Here, we aimed to develop an analgesic predictive validity test of thermal nociception through D. melanogaster larvae.
Materials and methods: We evaluated the effect of classical analgesics (morphine, dipyrone, acetylsalicylic acid (ASA) and dexamethasone (DXM)) in the rolling behavior latency of D. melanogaster larvae exposed to thermal-acute noxious stimulus and nociceptive sensitization paradigm. Drugs were injected into hemocoel (100 nL) before nociceptive measurement.
Results and discussion: Rolling behavior latency was increased by morphine (2, 4, 8 and 16 ng) in dose-dependent manner. Naloxone (4 ng) fully reversed maximum effect of morphine. Dipyrone (32, 64 and 128 ng) and DXM (8 and 16 ng) elicited dose-dependent antinociceptive effects. Exposure of larvae to 97% of maximal infrared intensity induced nociceptive sensitization, i.e., latency changed from 12 to 7.5 seconds. ASA (25, 50 and 100 ng) and DXM (4, 8 and 16 ng) were administered 150 min after nociceptive sensitization and displayed reverse sensitization in rapid onset (30 min after injection). DXM (16 ng), injected prior to nociceptive sensitization, displayed a delay in the onset of action (150 min after injection). Locomotor behaviors were not affected by analgesic substances.
Conclusion: Our findings open perspectives for evaluation and discovery of antinociceptive drugs using D. melanogaster larvae model.
Graphical abstract
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Calderon-Garcia AA, Perez-Fernandez M, Curto-Aguilera D, Rodriguez-Martin I, Sánchez-Barba M, Gonzalez-Nunez V. Exposure to Morphine and Cocaine Modify the Transcriptomic Landscape in Zebrafish Embryos. Neuroscience 2022; 507:14-27. [PMID: 36404518 DOI: 10.1016/j.neuroscience.2022.10.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 10/17/2022] [Accepted: 10/20/2022] [Indexed: 11/19/2022]
Abstract
Morphine and other opioid analgesics are the drugs of election to treat moderate-to-severe pain, and they elicit their actions by binding to the opioid receptors. Cocaine is a potent inhibitor of dopamine, serotonin, and noradrenaline reuptake, as it blocks DAT, the dopamine transporter, causing an increase in the local concentration of these neurotransmitters in the synaptic cleft. The molecular effects of these drugs have been studied in specific brain areas or nuclei, but the systemic effects in the whole organism have not been comprehensively analyzed. This study aims to analyze the transcriptomic changes elicited by morphine (10 uM) and cocaine (15 uM) in zebrafish embryos. An RNAseq assay was performed with tissues extracts from zebrafish embryos treated from 5 hpf (hours post fertilization) to 72 hpf, and the most representative deregulated genes were experimentally validated by qPCR. We have found changes in the expression of genes related to lipid metabolism, chemokine receptor ligands, visual system, hemoglobins, and metabolic detoxification pathways. Besides, morphine and cocaine modified the global DNA methylation pattern in zebrafish embryos, which would explain the changes in gene expression elicited by these two drugs of abuse.
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Affiliation(s)
- Andrés Angel Calderon-Garcia
- Dept. Biochemistry and Molecular Biology, Faculty of Medicine, University of Salamanca, Spain; Instituto de Neurociencias de Castilla y León (INCYL), Faculty of Medicine, University of Salamanca, Spain; Institute of Biomedical Research of Salamanca (IBSAL), Spain
| | - Maria Perez-Fernandez
- Instituto de Neurociencias de Castilla y León (INCYL), Faculty of Medicine, University of Salamanca, Spain
| | - Daniel Curto-Aguilera
- Dept. Biochemistry and Molecular Biology, Faculty of Medicine, University of Salamanca, Spain
| | - Ivan Rodriguez-Martin
- Faculty of Experimental Sciences, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Madrid, Spain
| | - Mercedes Sánchez-Barba
- Institute of Biomedical Research of Salamanca (IBSAL), Spain; Dept. Statistics. Faculty of Medicine, University of Salamanca, Spain
| | - Veronica Gonzalez-Nunez
- Dept. Biochemistry and Molecular Biology, Faculty of Medicine, University of Salamanca, Spain; Instituto de Neurociencias de Castilla y León (INCYL), Faculty of Medicine, University of Salamanca, Spain; Institute of Biomedical Research of Salamanca (IBSAL), Spain.
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Li L, Li Z, Guo Y, Zhang K, Mi W, Liu J. Preparation of uniform-sized GeXIVA[1,2]-loaded PLGA microspheres as long-effective release system with high encapsulation efficiency. Drug Deliv 2022; 29:2283-2295. [PMID: 35866254 PMCID: PMC9310807 DOI: 10.1080/10717544.2022.2089297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The purpose of this study was to prepare GeXIVA[1,2] PLGA microspheres by W/O/W re-emulsification-solvent evaporation technology and to develop sustained-release formulations to meet the clinical treatment needs of chronic neuropathic pain. Through prescription optimization, the uniformity of particle size and the encapsulation efficiency is improved, so as to achieve the quality standard of the microspheres. The mechanism of trehalose improving the stability of GeXIVA[1,2] was studied and verified by molecular simulation. The results showed that when adding trehalose to W1, using the PLGA model of 75:25, PLGA concentration of 30%, PVA concentration of 1.5%, adding 1% NaCl to PVA and adding 1% NaCl to solidification water, the prepared microspheres are smooth, the particle size is about 25 μm, and the encapsulation rate reaches 90%. The results of in vitro release experiments showed that the microspheres could be released steadily for about 30 days. The microsphere samples were characterized and analyzed by molecular simulation and powder X-ray diffractometer, and the protective mechanism of trehalose on GeXIVA[1,2] was discussed. The results showed that the hydrogen bond formed between trehalose and GeXIVA[1,2] acted as a hydration film and played a certain protective role on GeXIVA[1,2]. In addition, high-viscosity trehalose can form a glass state and wrap around GeXIVA[1,2], reducing the free movement of molecules. In the microsphere system, trehalose can also avoid the influence of PLGA material on the secondary structure of GeXIVA[1,2]. In conclusion, this study is expected to provide a new therapeutic strategy for the treatment of chronic neuropathic pain.
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Affiliation(s)
- Lu Li
- Heilongjiang University of Traditional Chinese medicine, Harbin, China.,Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing, China
| | - Zhiguo Li
- Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing, China
| | - Yongxin Guo
- Department of Anesthesiology, The First Medical Center of the PLA General Hospital, Beijing, China
| | - Kai Zhang
- Department of Anesthesiology, The First Medical Center of the PLA General Hospital, Beijing, China
| | - Weidong Mi
- Department of Anesthesiology, The First Medical Center of the PLA General Hospital, Beijing, China
| | - Jing Liu
- Department of Anesthesiology, The First Medical Center of the PLA General Hospital, Beijing, China
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Cervantes-Ceballos L, Sánchez-Hoyos J, Sanchez-Hoyos F, Torres-Niño E, Mercado-Camargo J, Echeverry-Gómez A, Jotty Arroyo K, del Olmo-Fernández E, Gómez-Estrada H. An Overview of Genus Malachra L.-Ethnobotany, Phytochemistry, and Pharmacological Activity. PLANTS (BASEL, SWITZERLAND) 2022; 11:2808. [PMID: 36365260 PMCID: PMC9657199 DOI: 10.3390/plants11212808] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 10/17/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Abstract
The genus Malachra L. belongs to the family Malvaceae. It includes herbs or subshrubs of nine accepted species with approximately thirty synonyms, and it has been widely used in community folk medicine to treat health problems including inflammation, nasal obstruction, leishmaniasis, malaria, childbirth, kidney disorders, fever, respiratory tract diseases, among others. From the genus Malachra L., flavonoids, steroids, triterpenes, anthocyanins, leucoanthocyanins, saponins, carbohydrates, phenols, glycosides, and alkaloids have been isolated and identified. Some pharmacological reports have indicated that the genus has antidiarrheal, antiepileptic, antiulcerogenic, antioxidant, anticonvulsant, antiviral, anticancer, antibacterial, anthelmintic, and hepatoprotective properties. However, there have been limited studies of bioactive molecules with pharmacological and biological activities associated with Malachra alceifolia Jacq., Malachra capitata (L.) L., Malachra fasciata Jacq., Malachra radiata (L.) L., Malachra ruderalis Gürke., Malachra rudis Benth., Malachra helodes Mart., Malachra urens Poit. ex Ledeb. & Alderstam., and Malachra officinalis Klotzsch. In this review, we consider the conservation of these species to save the ancestral knowledge of their traditional use in populations, and their pharmacological potential for future studies in search of alternatives for solutions to diseases in humans and animals and tools for the design and search of potential bioactive compounds against infectious and non-infectious agents.
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Affiliation(s)
- Leonor Cervantes-Ceballos
- Grupo de Investigación en Química Orgánica Medicinal, Facultad de Ciencias Farmacéuticas, Campus de Zaragocilla, University of Cartagena, Cartagena 130001, Colombia
| | - Jorge Sánchez-Hoyos
- Grupo de Investigación en Química Orgánica Medicinal, Facultad de Ciencias Farmacéuticas, Campus de Zaragocilla, University of Cartagena, Cartagena 130001, Colombia
| | - Fredys Sanchez-Hoyos
- Grupo de Investigación en Química Orgánica Medicinal, Facultad de Ciencias Farmacéuticas, Campus de Zaragocilla, University of Cartagena, Cartagena 130001, Colombia
| | - Erick Torres-Niño
- Grupo de Investigación en Química Orgánica Medicinal, Facultad de Ciencias Farmacéuticas, Campus de Zaragocilla, University of Cartagena, Cartagena 130001, Colombia
| | - Jairo Mercado-Camargo
- Grupo de Investigación en Química Orgánica Medicinal, Facultad de Ciencias Farmacéuticas, Campus de Zaragocilla, University of Cartagena, Cartagena 130001, Colombia
| | - Amparo Echeverry-Gómez
- Grupo de Investigación en Química Orgánica Medicinal, Facultad de Ciencias Farmacéuticas, Campus de Zaragocilla, University of Cartagena, Cartagena 130001, Colombia
| | - Karick Jotty Arroyo
- Grupo de Investigación en Química Orgánica Medicinal, Facultad de Ciencias Farmacéuticas, Campus de Zaragocilla, University of Cartagena, Cartagena 130001, Colombia
| | - Esther del Olmo-Fernández
- Departamento de Ciencias Farmacéuticas, Área de Química Farmacéutica, Centro de Enfermedades Tropicales de la Universidad de Salamanca (CIETUS), Instituto de Investigación Biomédica de Salamanca (IBSAL), Facultad de Farmacia, Campus Miguel de Unamuno, Universidad de Salamanca, 37007 Salamanca, Spain
| | - Harold Gómez-Estrada
- Grupo de Investigación en Química Orgánica Medicinal, Facultad de Ciencias Farmacéuticas, Campus de Zaragocilla, University of Cartagena, Cartagena 130001, Colombia
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Identification of Gedunin from a Phytochemical Depository as a Novel Multidrug Resistance-Bypassing Tubulin Inhibitor of Cancer Cells. Molecules 2022; 27:molecules27185858. [PMID: 36144591 PMCID: PMC9501561 DOI: 10.3390/molecules27185858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/01/2022] [Accepted: 09/05/2022] [Indexed: 11/17/2022] Open
Abstract
The chemotherapy of tumors is frequently limited by the development of resistance and severe side effects. Phytochemicals may offer promising candidates to meet the urgent requirement for new anticancer drugs. We screened 69 phytochemicals, and focused on gedunin to analyze its molecular modes of action. Pearson test-base correlation analyses of the log10IC50 values of 55 tumor cell lines of the National Cancer Institute (NCI), USA, for gedunin with those of 91 standard anticancer agents revealed statistically significant relationships to all 10 tested microtubule inhibitors. Thus, we hypothesized that gedunin may be a novel microtubule inhibitor. Confocal microscopy, cell cycle measurements, and molecular docking in silico substantiated our assumption. Agglomerative cluster analyses and the heat map generation of proteomic data revealed a subset of 40 out of 3171 proteins, the expression of which significantly correlated with sensitivity or resistance for the NCI cell line panel to gedunin. This indicates the complexity of gedunin’s activity against cancer cells, underscoring the value of network pharmacological techniques for the investigation of the molecular modes of drug action. Finally, we correlated the transcriptome-wide mRNA expression of known drug resistance mechanism (ABC transporter, oncogenes, tumor suppressors) log10IC50 values for gedunin. We did not find significant correlations, indicating that gedunin’s anticancer activity might not be hampered by classical drug resistance mechanisms. In conclusion, gedunin is a novel microtubule-inhibiting drug candidate which is not involved in multidrug resistance mechanisms such as other clinically established mitotic spindle poisons.
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12
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Gorbachev D, Smith E, Argent SP, Newton GN, Lam HW. Synthesis of New Morphinan Opioids by TBADT‐Catalyzed Photochemical Functionalization at the Carbon Skeleton**. Chemistry 2022; 28:e202201478. [PMID: 35661287 PMCID: PMC9544987 DOI: 10.1002/chem.202201478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Dmitry Gorbachev
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry University of Nottingham Jubilee Campus, Triumph Road Nottingham NG7 2TU UK
- School of Chemistry University of Nottingham University Park Nottingham NG7 2RD UK
| | - Elliot Smith
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry University of Nottingham Jubilee Campus, Triumph Road Nottingham NG7 2TU UK
- School of Chemistry University of Nottingham University Park Nottingham NG7 2RD UK
| | - Stephen P. Argent
- School of Chemistry University of Nottingham University Park Nottingham NG7 2RD UK
| | - Graham N. Newton
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry University of Nottingham Jubilee Campus, Triumph Road Nottingham NG7 2TU UK
- School of Chemistry University of Nottingham University Park Nottingham NG7 2RD UK
| | - Hon Wai Lam
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry University of Nottingham Jubilee Campus, Triumph Road Nottingham NG7 2TU UK
- School of Chemistry University of Nottingham University Park Nottingham NG7 2RD UK
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13
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Karimzadeh Z, Jouyban A, Ostadi A, Gharakhani A, Rahimpour E. A sensitive determination of morphine in plasma using AuNPs@UiO-66/PVA hydrogel as an advanced optical scaffold. Anal Chim Acta 2022; 1227:340252. [DOI: 10.1016/j.aca.2022.340252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/03/2022] [Accepted: 08/08/2022] [Indexed: 11/01/2022]
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14
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Uenoyama Y, Tsuchida H, Nagae M, Inoue N, Tsukamura H. Opioidergic pathways and kisspeptin in the regulation of female reproduction in mammals. Front Neurosci 2022; 16:958377. [PMID: 36033602 PMCID: PMC9404872 DOI: 10.3389/fnins.2022.958377] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/19/2022] [Indexed: 11/13/2022] Open
Abstract
Endogenous opioid peptides have attracted attention as critical neuropeptides in the central mechanism regulating female reproduction ever since the discovery that arcuate dynorphin neurons that coexpress kisspeptin and neurokinin B (NKB), which are also known as kisspeptin/neurokinin B/dynorphin (KNDy) neurons, play a role as a master regulator of pulsatile gonadotropin-releasing hormone (GnRH) release in mammals. In this study, we first focus on the role of dynorphin released by KNDy neurons in the GnRH pulse generation. Second, we provide a historical overview of studies on endogenous opioid peptides. Third, we discuss how endogenous opioid peptides modulate tonic GnRH/gonadotropin release in female mammals as a mediator of inhibitory internal and external cues, such as ovarian steroids, nutritional status, or stress, on reproduction. Then, we discuss the role of endogenous opioid peptides in GnRH surge generation in female mammals.
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15
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Li J, Zhang T, Sun J, Ren F, Jia H, Yu Z, Cheng J, Shi W. Synthesis and evaluation of peptide–fentanyl analogue conjugates as dual µ/δ-opioid receptor agonists for the treatment of pain. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.11.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Zhang X, Wang J, Liang J, Liu Z, Shen X, Liu Y, Li X, Xu Z, Lei Y, Lei H. A novel self-aggregated gold nanoparticles based on sensitive immunochromatographic assays for highly detection of opium poppy in herbal teas. Food Chem 2022; 390:133188. [PMID: 35567969 DOI: 10.1016/j.foodchem.2022.133188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 05/02/2022] [Accepted: 05/06/2022] [Indexed: 11/17/2022]
Abstract
Opium poppy abused in food has aroused public concerns due to its serious side effects. Effective monitoring is essential to fight the abuse crisis. Herein, we synthesized an easily prepared, affordable, accessible highly aggregated gold nanoparticles (AGNPs) performing in lateral flow immunoassay (LFIA) for detection opium poppy in herbal teas. Simultaneously, a LFIA based ontime-resolved fluorescent microspheres (TRFMs) was developed as contrastive method. In this study, morphine (MOR), codeine (COD) and thebaine (THE) were as the specific recognition markers of opium poppy. Results demonstrated the quantitative limits of detection were 0.0049/0.0053/0.084, 0.034/0.037/0.37 ng mL-1 for AGNPs/TRFMs-LFIA, respectively. The recoveries were 95%-107.5%/91%-106.7% with coefficient of variation was 1.6%-6.6%/1.8%-7.2%, indicating excellent accuracy and precision. Parallel experiments among AGNPs/TRFMs-LFIA and LC-MS/MS analysis showed good correlation. Overall, AGNPs-LFIA executed quantitative analysis within 15 min on the basis of simple treatment while providing a rapid and sensitive analysis strategy for illegal drugs abused.
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Affiliation(s)
- Xuan Zhang
- Guangdong Provincial Key Laboratory of Food Quality and Safety / National-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, South China Agricultural University, Guangzhou 510642, China
| | - Jin Wang
- Guangdong Provincial Key Laboratory of Food Quality and Safety / National-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, South China Agricultural University, Guangzhou 510642, China
| | - Jianhao Liang
- Guangdong Provincial Key Laboratory of Food Quality and Safety / National-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, South China Agricultural University, Guangzhou 510642, China
| | - Zhiwei Liu
- Guangdong Provincial Key Laboratory of Food Quality and Safety / National-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, South China Agricultural University, Guangzhou 510642, China
| | - Xing Shen
- Guangdong Provincial Key Laboratory of Food Quality and Safety / National-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, South China Agricultural University, Guangzhou 510642, China
| | - Yingju Liu
- Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Xiangmei Li
- Guangdong Provincial Key Laboratory of Food Quality and Safety / National-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, South China Agricultural University, Guangzhou 510642, China
| | - Zhenlin Xu
- Guangdong Provincial Key Laboratory of Food Quality and Safety / National-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, South China Agricultural University, Guangzhou 510642, China
| | - Yi Lei
- Guangdong Institute of Food Inspection, Guangzhou 510435, China
| | - Hongtao Lei
- Guangdong Provincial Key Laboratory of Food Quality and Safety / National-Local Joint Engineering Research Center for Machining and Safety of Livestock and Poultry Products, South China Agricultural University, Guangzhou 510642, China.
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17
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Diels–Alder Adducts of Morphinan-6,8-Dienes and Their Transformations. Molecules 2022; 27:molecules27092863. [PMID: 35566212 PMCID: PMC9102320 DOI: 10.3390/molecules27092863] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/19/2022] [Accepted: 04/20/2022] [Indexed: 02/04/2023] Open
Abstract
6,14-ethenomorphinans are semisynthetic opiate derivatives containing an ethylene bridge between positions 6 and 14 in ring-C of the morphine skeleton that imparts a rigid molecular structure. These compounds represent an important family of opioid receptor ligands in which the 6,14-etheno bridged structural motif originates from a [4 + 2] cycloaddition of morphinan-6,8-dienes with dienophiles. Certain 6,14-ethenomorphinans having extremely high affinity for opioid receptors are often non-selective for opioid receptor subtypes, but this view is now undergoing some revision. The agonist 20R-etorphine and 20R-dihydroetorphine are several thousand times more potent analgesics than morphine, whereas diprenorphine is a high-affinity non-selective antagonist. The partial agonist buprenorphine is used as an analgesic in the management of post-operative pain or in substitution therapy for opiate addiction, sometimes in combination with the non-selective antagonist naloxone. In the context of the current opioid crisis, we communicated a summary of several decades of work toward generating opioid analgesics with lesser side effects or abuse potential. Our summary placed a focus on Diels–Alder reactions of morphinan-6,8-dienes and subsequent transformations of the cycloadducts. We also summarized the pharmacological aspects of radiolabeled 6,14-ethenomorphinans used in molecular imaging of opioid receptors.
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18
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Tűz B, Noszál B, Hosztafi S, Mazák K. β-cyclodextrin complex formation and protonation equilibria of morphine and other opioid compounds of therapeutic interest. Eur J Pharm Sci 2022; 171:106120. [PMID: 34999212 DOI: 10.1016/j.ejps.2022.106120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 12/02/2021] [Accepted: 01/05/2022] [Indexed: 11/24/2022]
Abstract
The inclusion complex formation of morphine and its 18 opioid derivatives with β-cyclodextrin has been studied using nuclear magnetic resonance spectroscopy. Initially, the protonation equilibria and the acid-base properties of dibasic opioid compounds have been fully characterized. Apparent protonation constants and the relative concentration of the microspecies in cyclodextrin excess were also determined. The 1:1 complex stoichiometry was confirmed by the continuous variation method of Job using UV-VIS spectroscopy. The stability constants of the different protonation forms were determined by 1H NMR titrations. The highest stability was observed in highly alkaline solutions where the amino group is in its unprotonated, neutral state. The structures of the complexes were investigated by two-dimensional ROESY experiments. Based on the stability constants and ROESY experiments, morphine derivatives with longer side chain on the nitrogen atom such as nalbuphine and naltrexone show stronger complexation. The protonation state of the phenolate group, positioned outside the CD cavity, has only a slight influence on the complex stability.
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Affiliation(s)
- Boglárka Tűz
- Department of Pharmaceutical Chemistry, Semmelweis University, Hőgyes Endre u. 9., Budapest H-1092, Hungary
| | - Béla Noszál
- Department of Pharmaceutical Chemistry, Semmelweis University, Hőgyes Endre u. 9., Budapest H-1092, Hungary
| | - Sándor Hosztafi
- Department of Pharmaceutical Chemistry, Semmelweis University, Hőgyes Endre u. 9., Budapest H-1092, Hungary
| | - Károly Mazák
- Department of Pharmaceutical Chemistry, Semmelweis University, Hőgyes Endre u. 9., Budapest H-1092, Hungary.
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Paul AK, Smith CM, Rahmatullah M, Nissapatorn V, Wilairatana P, Spetea M, Gueven N, Dietis N. Opioid Analgesia and Opioid-Induced Adverse Effects: A Review. Pharmaceuticals (Basel) 2021; 14:1091. [PMID: 34832873 PMCID: PMC8620360 DOI: 10.3390/ph14111091] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/26/2021] [Accepted: 10/26/2021] [Indexed: 01/08/2023] Open
Abstract
Opioids are widely used as therapeutic agents against moderate to severe acute and chronic pain. Still, these classes of analgesic drugs have many potential limitations as they induce analgesic tolerance, addiction and numerous behavioural adverse effects that often result in patient non-compliance. As opium and opioids have been traditionally used as painkillers, the exact mechanisms of their adverse reactions over repeated use are multifactorial and not fully understood. Older adults suffer from cancer and non-cancer chronic pain more than younger adults, due to the physiological changes related to ageing and their reduced metabolic capabilities and thus show an increased number of adverse reactions to opioid drugs. All clinically used opioids are μ-opioid receptor agonists, and the major adverse effects are directly or potentially connected to this receptor. Multifunctional opioid ligands or peripherally restricted opioids may elicit fewer adverse effects, as shown in preclinical studies, but these results need reproducibility from further extensive clinical trials. The current review aims to overview various mechanisms involved in the adverse effects induced by opioids, to provide a better understanding of the underlying pathophysiology and, ultimately, to help develop an effective therapeutic strategy to better manage pain.
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Affiliation(s)
- Alok K. Paul
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart, TAS 7001, Australia;
| | - Craig M. Smith
- School of Medicine, Institute for Mental and Physical Health and Clinical Translation, Deakin University, Geelong, VIC 3216, Australia;
| | - Mohammed Rahmatullah
- Department of Biotechnology & Genetic Engineering, University of Development Alternative, Dhanmondi, Dhaka 1207, Bangladesh;
| | - Veeranoot Nissapatorn
- School of Allied Health Sciences, World Union for Herbal Drug Discovery (WUHeDD) and Research Excellence Center for Innovation and Health Products (RECIHP), Walailak University, Nakhon Si Thammarat 80160, Thailand;
| | - Polrat Wilairatana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Mariana Spetea
- Department of Pharmaceutical Chemistry, Institute of Pharmacy and Center for Molecular Biosciences (CMBI), University of Innsbruck, Innrain 80–82, 6020 Innsbruck, Austria;
| | - Nuri Gueven
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart, TAS 7001, Australia;
| | - Nikolas Dietis
- Medical School, University of Cyprus, Nicosia 1678, Cyprus;
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20
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Spetea M, Schmidhammer H. Recent Chemical and Pharmacological Developments on 14-Oxygenated- N-methylmorphinan-6-ones. Molecules 2021; 26:5677. [PMID: 34577147 PMCID: PMC8464912 DOI: 10.3390/molecules26185677] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 09/09/2021] [Accepted: 09/13/2021] [Indexed: 11/16/2022] Open
Abstract
Adequate pain management, particularly chronic pain, remains a major challenge associated with modern-day medicine. Current pharmacotherapy offers unsatisfactory long-term solutions due to serious side effects related to the chronic administration of analgesic drugs. Morphine and structurally related derivatives (e.g., oxycodone, oxymorphone, buprenorphine) are highly effective opioid analgesics, mediating their effects via the activation of opioid receptors, with the mu-opioid receptor subtype as the primary molecular target. However, they also cause addiction and overdose deaths, which has led to a global opioid crisis in the last decades. Therefore, research efforts are needed to overcome the limitations of present pain therapies with the aim to improve treatment efficacy and to reduce complications. This review presents recent chemical and pharmacological advances on 14-oxygenated-N-methylmorphinan-6-ones, in the search of safer pain therapeutics. We focus on drug design strategies and structure-activity relationships on specific modifications in positions 5, 6, 14 and 17 on the morphinan skeleton, with the goal of aiding the discovery of opioid analgesics with more favorable pharmacological properties, potent analgesia and fewer undesirable effects. Targeted molecular modifications on the morphinan scaffold can afford novel opioids as bi- or multifunctional ligands targeting multiple opioid receptors, as attractive alternatives to mu-opioid receptor selective analgesics.
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Affiliation(s)
- Mariana Spetea
- Department of Pharmaceutical Chemistry, Institute of Pharmacy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria;
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21
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Peripheral antinociceptive effects of a bifunctional μ and δ opioid receptor ligand in rat model of inflammatory bladder pain. Neuropharmacology 2021; 196:108701. [PMID: 34256047 DOI: 10.1016/j.neuropharm.2021.108701] [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] [Received: 03/03/2021] [Revised: 06/09/2021] [Accepted: 07/05/2021] [Indexed: 02/08/2023]
Abstract
There is a need to develop a novel analgesic for pain associated with interstitial cystitis/painful bladder syndrome (IC/PBS). The use of the conventional μ-opioid receptor agonists to manage IC/PBS pain is controversial due to adverse CNS effects. These effects are attenuated in benzylideneoxymorphone (BOM), a low-efficacy μ-opioid receptor agonist/δ-opioid receptor antagonist that attenuates thermal pain and is devoid of reinforcing effects. We hypothesize that BOM will inhibit bladder pain by attenuating responses of urinary bladder distension (UBD)-sensitive afferent fibers. Therefore, the effect of BOM was tested on responses of UBD-sensitive afferent fibers in L6 dorsal root from inflamed and non-inflamed bladder of rats. Immunohistochemical (IHC) examination reveals that following the induction of inflammation there were significant high expressions of μ, δ, and μ-δ heteromer receptors in DRG. BOM dose-dependently (1-10 mg/kg, i.v) attenuated mechanotransduction properties of these afferent fibers from inflamed but not from non-inflamed rats. In behavioral model of bladder pain, BOM significantly attenuated visceromotor responses (VMRs) to UBD only in inflamed group of rats when injected either systemically (10 mg/kg, i.v.) or locally into the bladder (0.1 ml of 10 mg/ml). Furthermore, oxymorphone (OXM), a high-efficacy μ-opioid receptor agonist, attenuated responses of mechanosensitive bladder afferent fibers and VMRs to UBD. Naloxone (10 mg/kg, i.v.) significantly reversed the inhibitory effects of BOM and OXM on responses of bladder afferent fibers and VMRs suggesting μ-opioid receptor-related analgesic effects of these compounds. The results reveal that a low-efficacy, bifunctional opioid-based compound can produce analgesia by attenuating mechanotransduction functions of afferent fibers innervating the urinary bladder.
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22
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Jiang M, Hu K, Zhou Y, Xiong Q, Cao W, Feng X. Enantioselective Isocyanide-based Multicomponent Reaction with Alkylidene Malonates and Phenols. Org Lett 2021; 23:5261-5265. [PMID: 34156867 DOI: 10.1021/acs.orglett.1c01792] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A highly enantioselective isocyanide-based multicomponent reaction catalyzed by a chiral N,N'-dioxide/MgII complex was reported. A wide range of substrates were tolerated in this reaction, including alkyl- and aryl-substituted isocyanides with alkylidene malonates and various phenols, affording the corresponding phenoxyimidate products in good to excellent yields (up to 94% yield) with good to excellent enantioselectivities (up to 95.5:4.5 er). A catalytic cycle and transition state were proposed to rationalize the reaction process and enantiocontrol.
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Affiliation(s)
- Mingyi Jiang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Kaiqi Hu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Yuqiao Zhou
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Qian Xiong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Weidi Cao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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Daley SK, Cordell GA. Alkaloids in Contemporary Drug Discovery to Meet Global Disease Needs. Molecules 2021; 26:molecules26133800. [PMID: 34206470 PMCID: PMC8270272 DOI: 10.3390/molecules26133800] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/05/2021] [Accepted: 06/14/2021] [Indexed: 12/15/2022] Open
Abstract
An overview is presented of the well-established role of alkaloids in drug discovery, the application of more sustainable chemicals, and biological approaches, and the implementation of information systems to address the current challenges faced in meeting global disease needs. The necessity for a new international paradigm for natural product discovery and development for the treatment of multidrug resistant organisms, and rare and neglected tropical diseases in the era of the Fourth Industrial Revolution and the Quintuple Helix is discussed.
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Affiliation(s)
| | - Geoffrey A. Cordell
- Natural Products Inc., Evanston, IL 60202, USA;
- Department of Pharmaceutics, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA
- Correspondence:
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24
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Vandeputte MM, Van Uytfanghe K, Layle NK, St. Germaine DM, Iula DM, Stove CP. Synthesis, Chemical Characterization, and μ-Opioid Receptor Activity Assessment of the Emerging Group of "Nitazene" 2-Benzylbenzimidazole Synthetic Opioids. ACS Chem Neurosci 2021; 12:1241-1251. [PMID: 33759494 DOI: 10.1021/acschemneuro.1c00064] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Several 2-benzylbenzimidazole opioids (also referred to as "nitazenes") recently emerged on the illicit market. The most frequently encountered member, isotonitazene, has been identified in multiple fatalities since its appearance in 2019. Although recent scheduling efforts targeted isotonitazene, many other analogues remain unregulated. Being structurally unrelated to fentanyl, little is known about the harm potential of these compounds. In this study, ten nitazenes and four metabolites were synthesized, analytically characterized via four different techniques, and pharmacologically evaluated using two cell-based β-arrestin2/mini-Gi recruitment assays monitoring μ-opioid receptor (MOR) activation. On the basis of absorption spectra and retention times, high-performance liquid chromatography coupled to diode-array detection (HPLC-DAD) allowed differentiation between most analogues. Time-of-flight mass spectrometry (LC-QTOF-MS) identified a fragment with m/z 100.11 for 12/14 compounds, which could serve as a basis for MS-based nitazene screening. MOR activity determination confirmed that nitazenes are generally highly active, with potencies and efficacies of several analogues exceeding that of fentanyl. Particularly relevant is the unexpected very high potency of the N-desethylisotonitazene metabolite, rivaling the potency of etonitazene and exceeding that of isotonitazene itself. Supported by its identification in fatalities, this likely has in vivo consequences. These results improve our understanding of this emerging group of opioids by laying out an analytical framework for their detection, as well as providing important new insights into their MOR activation potential.
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Affiliation(s)
- Marthe M. Vandeputte
- Laboratory of Toxicology, Department of Bioanalysis, Faculty of Pharmaceutical Sciences, Ghent University, Ghent 9000, Belgium
| | - Katleen Van Uytfanghe
- Laboratory of Toxicology, Department of Bioanalysis, Faculty of Pharmaceutical Sciences, Ghent University, Ghent 9000, Belgium
| | - Nathan K. Layle
- Forensic Chemistry Division, Cayman Chemical Company, Ann Arbor, Michigan 48108, United States
| | | | - Donna M. Iula
- Forensic Chemistry Division, Cayman Chemical Company, Ann Arbor, Michigan 48108, United States
| | - Christophe P. Stove
- Laboratory of Toxicology, Department of Bioanalysis, Faculty of Pharmaceutical Sciences, Ghent University, Ghent 9000, Belgium
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25
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Ujváry I, Christie R, Evans-Brown M, Gallegos A, Jorge R, de Morais J, Sedefov R. DARK Classics in Chemical Neuroscience: Etonitazene and Related Benzimidazoles. ACS Chem Neurosci 2021; 12:1072-1092. [PMID: 33760580 DOI: 10.1021/acschemneuro.1c00037] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Etonitazene and related 2-benzylbenzimidazoles are potent analgetics invented in the research laboratories of the Swiss pharmaceutical giant CIBA in the late 1950s. Though the unprecedented structure distinguishes this class of compounds from poppy-derived and other synthetic analgetics, a range of studies indicate that these drugs are selective μ opioid receptor agonists possessing morphine-like pharmacotoxicological properties in animals as well as humans. Several unscheduled members of this synthetically readily accessible class of opioids that are not controlled under the international and national drug control systems have recently emerged on the illicit drug market. Among them, isotonitazene has been implicated in at least 200 fatalities in Europe and North America. None of the 2-benzylbenzimidazole derivatives have been developed into medicines, but etonitazene and some of its derivatives have been used as receptor probes and in addiction behavior studies in animals. The unique structure has inspired research on such benzimidazoles and related benzimidazolones of which "brorphine" made its debut as one of the newest psychoactive substance to emerge on the illicit opioid drug market in mid-2019. This in-depth review provides a historical introduction, an overview on the chemistry, pharmacological profiles, adverse effects, addiction liability, regulatory status, and the impact on chemical neuroscience of the 2-benzylbenzimidazoles. Structurally related benzimidazoles with opioid and/or analgesic properties are also discussed briefly.
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Affiliation(s)
| | - Rachel Christie
- European Monitoring Centre for Drugs and Drug Addiction, 1249-289 Lisbon, Portugal
| | - Michael Evans-Brown
- European Monitoring Centre for Drugs and Drug Addiction, 1249-289 Lisbon, Portugal
| | - Ana Gallegos
- European Monitoring Centre for Drugs and Drug Addiction, 1249-289 Lisbon, Portugal
| | - Rita Jorge
- European Monitoring Centre for Drugs and Drug Addiction, 1249-289 Lisbon, Portugal
| | - Joanna de Morais
- European Monitoring Centre for Drugs and Drug Addiction, 1249-289 Lisbon, Portugal
| | - Roumen Sedefov
- European Monitoring Centre for Drugs and Drug Addiction, 1249-289 Lisbon, Portugal
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26
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Knight BJ, Tolchin ZA, Smith JM. A predictive model for additions to N-alkyl pyridiniums. Chem Commun (Camb) 2021; 57:2693-2696. [PMID: 33595047 DOI: 10.1039/d1cc00056j] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Disclosed in this communication is a thorough study on the dearomative addition of organomagnesium nucleophiles to N-alkyl pyridinium electrophiles. The regiochemical outcomes have observable and predictable trends associated with the substituent patterns on the pyridinium electrophile. Often, the substituent effects can be either additive, giving high selectivities, or ablative, giving competing outcomes. Additionally, the nature of the organometallic nucleophilic component was also investigated for its role in the regioselective outcome. The effects of either reactive component are important to both the overall reactivity and site of nucleophilic addition. The utility of these observed trends is demonstrated in a concise, dearomative synthesis of a tricyclic compound shown to have insecticidal activity.
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Affiliation(s)
- Brian J Knight
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306, USA.
| | - Zachary A Tolchin
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306, USA.
| | - Joel M Smith
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, FL 32306, USA.
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Li Z, Han X, Hong X, Li X, Gao J, Zhang H, Zheng A. Lyophilization Serves as an Effective Strategy for Drug Development of the α9α10 Nicotinic Acetylcholine Receptor Antagonist α-Conotoxin GeXIVA[1,2]. Mar Drugs 2021; 19:md19030121. [PMID: 33668830 PMCID: PMC7996264 DOI: 10.3390/md19030121] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 02/18/2021] [Accepted: 02/22/2021] [Indexed: 12/22/2022] Open
Abstract
α-Conotoxin GeXIVA[1,2] is a highly potent and selective antagonist of the α9α10 nicotinic acetylcholine receptor (nAChR) subtype. It has the advantages of strong efficacy, no tolerance, and no effect on motor function, which has been expected help patients with neuropathic pain. However, drug development for clinical use is severely limited owing to its instability. Lyophilization is applied as the most preferred method to solve this problem. The prepared lyophilized powder is characterized by differential scanning calorimetry (DSC), powder X-ray diffractometry (PXRD), and Fourier transform infrared spectroscopy (FTIR). Molecular simulation is also used to explore the internal distribution and forces formed in the system. The analgesic effect on paclitaxel-induced neuropathic pain following single and 14-day repeated administrations are evaluated by the von Frey test and the tail-flick test. Trehalose combined with mannitol in a ratio of 1:1 is employed as the excipients in the determined formulation, where trehalose acts as the stabilizer and mannitol acts as the bulking agent, according to the results of DSC, PXRD, and FTIR. Both GeXIVA[1,2] (API) and GeXIVA[1,2] lyophilized powder (formulation) could produce stable analgesic effect. These results indicated that GeXIVA[1,2] lyophilized powder could improve the stability and provide an effective strategy to push it into clinical use as a new analgesic drug.
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Affiliation(s)
| | | | | | | | | | | | - Aiping Zheng
- Correspondence: ; Tel.: +86-010-66931694 or +86-13520467936
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Chen W, Yang L, Yan C, Yao B, Lu J, Xu J, Liu G. Surface-Confined Building of Au@Pt-Centered and Multi-G-Quadruplex/Hemin Wire-Surrounded Electroactive Super-nanostructures for Ultrasensitive Monitoring of Morphine. ACS Sens 2020; 5:2644-2651. [PMID: 32633121 DOI: 10.1021/acssensors.0c01230] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Overuse and abuse of morphine (MOP), one of the main components of pericarpium papaveris, have attracted increasing attention in the medical field owing to its pharmacological and toxicological activity. Herein, we proposed a new electrochemical nano-biosensor for MOP detection based on surface-confined building of Au@Pt-centered and multi-G-quadruplex/hemin wire-surrounded electroactive super-nanostructures. The center Au@Pt was flower-shaped and irregularly protruded, allowing substantial loading of multiple G-quadruplex wire/hemin complexes on its surface to accomplish the assembly of electroactive super-nanostructures. Interestingly, as the super-nanostructures were closely confined on the electrode surface, a significantly amplified electrochemical signal was thus obtained in the absence of MOP. In contrast, the introduction of target MOP can induce an intense competitive effect and strongly destroy the assembly process, resulting in the reduction of the electrochemical response that is correlated with the logarithmic concentration of MOP. Under optimal conditions, the electrochemical nano-biosensor is capable of highly sensitive detection of MOP in a dynamic concentration range from 1 ppt to 500 ppb. The limit of detection is achieved as low as 0.69 ppt, and the practical application was confirmed by examining MOP from chafing dish condiments. We expect the electrochemical platform utilizing this unique nanoarchitecture to provide rational guidelines to design high-performance analytical tools.
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Affiliation(s)
- Wei Chen
- Engineering Research Center of Bioprocess, MOE, School of Food & Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Lijun Yang
- Engineering Research Center of Bioprocess, MOE, School of Food & Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Chao Yan
- Engineering Research Center of Bioprocess, MOE, School of Food & Biological Engineering, Hefei University of Technology, Hefei 230009, China
- Research Center for Biomedical and Health Science, School of Life and Health, Anhui Science & Technology University, Fengyang 233100, China
| | - Bangben Yao
- Engineering Research Center of Bioprocess, MOE, School of Food & Biological Engineering, Hefei University of Technology, Hefei 230009, China
- Anhui Province Institute of Product Quality Supervision & Inspection, Hefei 230051, P. R. China
| | - Jianfeng Lu
- Engineering Research Center of Bioprocess, MOE, School of Food & Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Jianguo Xu
- Engineering Research Center of Bioprocess, MOE, School of Food & Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Guodong Liu
- Research Center for Biomedical and Health Science, School of Life and Health, Anhui Science & Technology University, Fengyang 233100, China
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Kaserer T, Steinacher T, Kainhofer R, Erli F, Sturm S, Waltenberger B, Schuster D, Spetea M. Identification and characterization of plant-derived alkaloids, corydine and corydaline, as novel mu opioid receptor agonists. Sci Rep 2020; 10:13804. [PMID: 32796875 PMCID: PMC7427800 DOI: 10.1038/s41598-020-70493-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 07/27/2020] [Indexed: 12/11/2022] Open
Abstract
Pain remains a key therapeutic area with intensive efforts directed toward finding effective and safer analgesics in light of the ongoing opioid crisis. Amongst the neurotransmitter systems involved in pain perception and modulation, the mu-opioid receptor (MOR), a G protein-coupled receptor, represents one of the most important targets for achieving effective pain relief. Most clinically used opioid analgesics are agonists to the MOR, but they can also cause severe side effects. Medicinal plants represent important sources of new drug candidates, with morphine and its semisynthetic analogues as well-known examples as analgesic drugs. In this study, combining in silico (pharmacophore-based virtual screening and docking) and pharmacological (in vitro binding and functional assays, and behavioral tests) approaches, we report on the discovery of two naturally occurring plant alkaloids, corydine and corydaline, as new MOR agonists that produce antinociceptive effects in mice after subcutaneous administration via a MOR-dependent mechanism. Furthermore, corydine and corydaline were identified as G protein-biased agonists to the MOR without inducing β-arrestin2 recruitment upon receptor activation. Thus, these new scaffolds represent valuable starting points for future chemical optimization towards the development of novel opioid analgesics, which may exhibit improved therapeutic profiles.
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Affiliation(s)
- Teresa Kaserer
- Department of Pharmaceutical Chemistry, Institute of Pharmacy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Theresa Steinacher
- Department of Pharmaceutical Chemistry, Institute of Pharmacy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Roman Kainhofer
- Department of Pharmaceutical Chemistry, Institute of Pharmacy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Filippo Erli
- Department of Pharmaceutical Chemistry, Institute of Pharmacy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Sonja Sturm
- Department of Pharmacognosy, Institute of Pharmacy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria
| | - Birgit Waltenberger
- Department of Pharmacognosy, Institute of Pharmacy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria.
| | - Daniela Schuster
- Department of Pharmaceutical Chemistry, Institute of Pharmacy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria. .,Department of Medicinal and Pharmaceutical Chemistry, Institute of Pharmacy, Paracelsus Medical University, Strubergasse 22, 5020, Salzburg, Austria.
| | - Mariana Spetea
- Department of Pharmaceutical Chemistry, Institute of Pharmacy and Center for Molecular Biosciences Innsbruck (CMBI), University of Innsbruck, Innrain 80-82, 6020, Innsbruck, Austria.
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Ringuette AE, Spock M, Lindsley CW, Bender AM. DARK Classics in Chemical Neuroscience: Carfentanil. ACS Chem Neurosci 2020; 11:3955-3967. [PMID: 32786301 DOI: 10.1021/acschemneuro.0c00441] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Because of its remarkable potency and relative ease of synthesis, carfentanil (1) has recently emerged as a problematic contaminant in other drugs of abuse. Carfentanil and its close analogs, currently approved only for large animal veterinary medicine, have found use both as illicit additives to the clandestine manufacture of scheduled drugs and as chemical weapons. In this Review, the background, synthesis, manufacture, metabolism, pharmacology, approved indications, dosage, and adverse effects of carfentanil will be discussed along with its emergence as a key player in the ongoing opioid crisis.
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Affiliation(s)
- Anna E. Ringuette
- Warren Center for Neuroscience Drug Discovery, Vanderbilt University, Nashville, Tennessee 37232, United States
- Department of Pharmacology, , Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Matthew Spock
- Warren Center for Neuroscience Drug Discovery, Vanderbilt University, Nashville, Tennessee 37232, United States
- Department of Pharmacology, , Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Craig W. Lindsley
- Warren Center for Neuroscience Drug Discovery, Vanderbilt University, Nashville, Tennessee 37232, United States
- Department of Pharmacology, , Vanderbilt University, Nashville, Tennessee 37232, United States
- Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37232, United States
- Department of Biochemistry, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Aaron M. Bender
- Warren Center for Neuroscience Drug Discovery, Vanderbilt University, Nashville, Tennessee 37232, United States
- Department of Pharmacology, , Vanderbilt University, Nashville, Tennessee 37232, United States
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31
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Mella-Raipán J, Romero-Parra J, Recabarren-Gajardo G. DARK Classics in Chemical Neuroscience: Heroin and Desomorphine. ACS Chem Neurosci 2020; 11:3905-3927. [PMID: 32568519 DOI: 10.1021/acschemneuro.0c00262] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Opioids are arguably one of the most important pharmacologic classes, mainly due to their rich history, their useful and potent analgesic effects, and also, just as importantly, their "Dark Side", constituted by their reinforcing properties that have led countless of users to a spiral of addiction, biological dependence, tolerance, withdrawal syndromes, and death. Among the most significant abused and addictive known opioids are heroin and desomorphine, both synthetic derivatives of morphine that belong to the 4,5-epoxymorphinan structural chemical group of the opioid family drugs. These agents share not only structural, pharmacological, and epidemiological features but also a common geographical distribution. A drop in Afghan heroin production and its "exports" to Russia gave rise to widespread consumption of desomorphine in ex-Soviet republics during the first decade of the 21st century, representing an economical and accessible alternative for misusers to this sort of derivative. Herein we review the state of the art of history, chemistry and synthesis, pharmacology, and impact on society of these "cursed cousins".
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Affiliation(s)
- Jaime Mella-Raipán
- Instituto de Quı́mica y Bioquı́mica, Facultad de Ciencias, Universidad de Valparaı́so, Av. Gran Bretaña 1111, Valparaı́so 2360102, Chile
- Facultad de Farmacia, Centro de Investigación Farmacopea Chilena, Universidad de Valparaı́so,, Av. Gran Bretaña 1093, Valparaı́so 2360102, Chile
| | - Javier Romero-Parra
- Departamento de Quı́mica Orgánica y Fisicoquı́mica, Facultad de Ciencias Quı́micas y Farmacéuticas, Universidad de Chile, Sergio Livingstone 1007, Casilla
233, 8380492 Santiago, Chile
| | - Gonzalo Recabarren-Gajardo
- Bioactive Heterocycles Synthesis Laboratory, BHSL, Departamento de Farmacia, Facultad de Quı́mica y de Farmacia, Pontificia Universidad Católica de Chile, Casilla 306, Avda. Vicuña Mackenna 4860, Macul, 7820436 Santiago, Chile
- Centro Interdisciplinario de Neurociencias, Pontificia Universidad Católica de Chile,, Marcoleta 391, 8330024 Santiago, Chile
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32
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Physicochemical Properties of Zwitterionic Drugs in Therapy. ChemMedChem 2020; 15:1102-1110. [DOI: 10.1002/cmdc.202000164] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Indexed: 01/24/2023]
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Abstract
Buprenorphine has not only had an interdisciplinary impact on our understanding of key neuroscience topics like opioid pharmacology, pain signaling, and reward processing but has also been a key influence in changing the way that substance use disorders are approached in modern medical systems. From its leading role in expanding outpatient treatment of opioid use disorders to its continued influence on research into next-generation analgesics, buprenorphine has been a continuous player in the ever-evolving societal perception of opioids and substance use disorder. To provide a multifaceted account on the enormous diversity of areas where this molecule has made an impact, this article discusses buprenorphine's chemical properties, synthesis and development, pharmacology, adverse effects, manufacturing information, and historical place in the field of chemical neuroscience.
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Affiliation(s)
- Jillian L. Kyzer
- University of Wisconsin-Madison, School of Pharmacy, 777 Highland Avenue, Madison, Wisconsin 53705, United States
| | - Cody J. Wenthur
- University of Wisconsin-Madison, School of Pharmacy, 777 Highland Avenue, Madison, Wisconsin 53705, United States
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34
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Zhou LM, Qu RY, Yang GF. An overview of spirooxindole as a promising scaffold for novel drug discovery. Expert Opin Drug Discov 2020; 15:603-625. [PMID: 32106717 DOI: 10.1080/17460441.2020.1733526] [Citation(s) in RCA: 120] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Introduction: Spirooxindole, a unique and versatile scaffold, has been widely studied in some fields such as pharmaceutical chemistry and synthetic chemistry. Especially in the application of medicine, quite a few compounds featuring spirooxindole motif have displayed excellent and broad pharmacological activities. Many identified candidate molecules have been used in clinical trials, showing promising prospects.Areas covered: This article offers an overview of different applications and developments of spirooxindoles (including the related natural products and their derivatives) in the process of drug innovation, including such as in anticancer, antimicrobial, anti-inflammatory, analgesic, antioxidant, antimalarial, and antiviral activities. Furthermore, the crucial structure-activity relationships, molecular mechanisms, pharmacokinetic properties, and main synthetic methods of spirooxindoles-based derivatives are also reviewed.Expert opinion: Recent progress in the biological activity profiles of spirooxindole derivatives have demonstrated their significant position in present-day drug discovery. Furthermore, we believe that the multidirectional development of novel drugs containing this core scaffold will continue to be the research hotspot in medicinal chemistry in the future.
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Affiliation(s)
- Li-Ming Zhou
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan, P. R. China
| | - Ren-Yu Qu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan, P. R. China
| | - Guang-Fu Yang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan, P. R. China
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35
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Trombley TA, Capstick RA, Lindsley CW. DARK Classics in Chemical Neuroscience: Gamma-Hydroxybutyrate (GHB). ACS Chem Neurosci 2019; 11:3850-3859. [PMID: 31287661 DOI: 10.1021/acschemneuro.9b00336] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Gamma-hydroxybutyrate (GHB) is a naturally occurring short-chain fatty acid that rose to prominence as a popular club drug in the 1990s. Originally developed as an anesthetic in the early 1960s, it was later sold as an over-the-counter dietary supplement before becoming a rising substance of abuse in the following decades as one of the "date rape" drugs. Despite its abuse potential, there has been a recent surge in therapeutic interest in the drug due to its clinical viability in the treatment of narcolepsy and alcohol abuse/withdrawal. Its interactions with the GABAergic framework of higher mammals has made it the prototypical example for the study of the chief inhibitory mechanism in the human central nervous system. Though relatively obscure in terms of popular culture, it has a storied history with widespread usage in therapeutic, recreational ("Chemsex"), and some disturbingly nefarious contexts. This Review aims to capture its legacy through review of the history, synthesis, pharmacology, drug metabolism, and societal impact of this DARK classic in chemical neuroscience.
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Affiliation(s)
- Trevor A. Trombley
- Vanderbilt Center for Neuroscience Drug Discovery, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States
| | - Rory A. Capstick
- Vanderbilt Center for Neuroscience Drug Discovery, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States
| | - Craig W. Lindsley
- Vanderbilt Center for Neuroscience Drug Discovery, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States
- Department of Chemistry, Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37232, United States
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States
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36
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Mazák K, Noszál B, Hosztafi S. Advances in the Physicochemical Profiling of Opioid Compounds of Therapeutic Interest. ChemistryOpen 2019; 8:879-887. [PMID: 31312587 PMCID: PMC6610444 DOI: 10.1002/open.201900115] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 05/24/2019] [Indexed: 01/27/2023] Open
Abstract
This review focuses on recent developments in the physicochemical profiling of morphine and other opioids. The acid-base properties and lipophilicity of these compounds is discussed at the microscopic, species-specific level. Examples are provided where this type of information can reveal the mechanism of pharmacokinetic processes at the submolecular level. The role of lipophilicity in quantitative structure-activity relationship (QSAR) studies of opioids is reviewed. The physicochemical properties and pharmacology of the main metabolites of morphine are also discussed. Recent studies indicate that the active metabolite morphine-6-glucuronide (M6G) can contribute to the analgesic activity of systemically administered morphine. The unexpectedly high lipophilicity of M6G partly accounts for its analgesic activity. When administered parenterally, another suspected minor metabolite, morphine-6-sulfate (M6S) has superior antinociceptive effects to those of morphine. However, because sulfate esters of morphine derivatives cannot cross the blood-brain barrier these esters may be good candidates to develop peripheral analgesic drugs.
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Affiliation(s)
- Károly Mazák
- Semmelweis UniversityDepartment of Pharmaceutical Chemistry, Research Group of Drugs of Abuse and Doping Agents, Hungarian Academy of Sciences Hőgyes E. u. 9.H-1092BudapestHungary
| | - Béla Noszál
- Semmelweis UniversityDepartment of Pharmaceutical Chemistry, Research Group of Drugs of Abuse and Doping Agents, Hungarian Academy of Sciences Hőgyes E. u. 9.H-1092BudapestHungary
| | - Sándor Hosztafi
- Semmelweis UniversityDepartment of Pharmaceutical Chemistry, Research Group of Drugs of Abuse and Doping Agents, Hungarian Academy of Sciences Hőgyes E. u. 9.H-1092BudapestHungary
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37
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Wang H, Li X, Zhangsun D, Yu G, Su R, Luo S. The α9α10 Nicotinic Acetylcholine Receptor Antagonist αO-Conotoxin GeXIVA[1,2] Alleviates and Reverses Chemotherapy-Induced Neuropathic Pain. Mar Drugs 2019; 17:md17050265. [PMID: 31060282 PMCID: PMC6562493 DOI: 10.3390/md17050265] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 04/26/2019] [Accepted: 05/02/2019] [Indexed: 12/15/2022] Open
Abstract
Oxaliplatin is a third-generation platinum drug and is widely used as a first-line therapy for the treatment of colorectal cancer (CRC). However, a large number of patients receiving oxaliplatin develop dose-limiting painful neuropathy. Here, we report that αO-conotoxin GeXIVA[1,2], a highly potent and selective antagonist of the α9α10 nicotinic acetylcholine receptor (nAChR) subtype, can relieve and reverse oxaliplatin-induced mechanical and cold allodynia after single and repeated intramuscular (IM) injections in rats. Treatments were started at 4 days post oxaliplatin injection when neuropathic pain emerged and continued for 8 and 16 days. Cold score and mechanical paw withdrawal threshold (PWT) were detected by the acetone test and von Frey test respectively. GeXIVA[1,2] significantly relieved mechanical and cold allodynia in oxaliplatin-treated rats after a single injection. After repeated treatments, GeXIVA[1,2] produced a cumulative analgesic effect without tolerance and promoted recovery from neuropathic pain. Moreover, the long lasting analgesic effect of GeXIVA[1,2] on mechanical allodynia continued until day 10 after the termination of the 16-day repeated treatment procedure. On the contrary, GeXIVA[1,2] did not affect acute mechanical and thermal pain behaviors in normal rats after repeated injections detected by the von Frey test and tail flick test. GeXIVA[1,2] had no influence on rat hind limb grip strength and body weight after repeated treatments. These results indicate that αO-conotoxin GeXIVA[1,2] could provide a novel strategy to treat chemotherapy-induced neuropathic pain.
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Affiliation(s)
- Huanbai Wang
- Key Laboratory of Tropical Biological Resources, Ministry of Education, Key Laboratory for Marine Drugs of Haikou, Hainan University, Haikou, Hainan 570228, China.
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Key Laboratory of Neuropsychopharmacology, Beijing Institute of Pharmacology and Toxicology, 27 Taiping Road, Beijing 100850, China.
| | - Xiaodan Li
- Key Laboratory of Tropical Biological Resources, Ministry of Education, Key Laboratory for Marine Drugs of Haikou, Hainan University, Haikou, Hainan 570228, China.
| | - Dongting Zhangsun
- Key Laboratory of Tropical Biological Resources, Ministry of Education, Key Laboratory for Marine Drugs of Haikou, Hainan University, Haikou, Hainan 570228, China.
| | - Gang Yu
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Key Laboratory of Neuropsychopharmacology, Beijing Institute of Pharmacology and Toxicology, 27 Taiping Road, Beijing 100850, China.
| | - Ruibin Su
- State Key Laboratory of Toxicology and Medical Countermeasures, Beijing Key Laboratory of Neuropsychopharmacology, Beijing Institute of Pharmacology and Toxicology, 27 Taiping Road, Beijing 100850, China.
| | - Sulan Luo
- Key Laboratory of Tropical Biological Resources, Ministry of Education, Key Laboratory for Marine Drugs of Haikou, Hainan University, Haikou, Hainan 570228, China.
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38
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Nastase AF, Anand JP, Bender AM, Montgomery D, Griggs NW, Fernandez TJ, Jutkiewicz EM, Traynor JR, Mosberg HI. Dual Pharmacophores Explored via Structure-Activity Relationship (SAR) Matrix: Insights into Potent, Bifunctional Opioid Ligand Design. J Med Chem 2019; 62:4193-4203. [PMID: 30916966 DOI: 10.1021/acs.jmedchem.9b00378] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Short-acting μ-opioid receptor (MOR) agonists have long been used for the treatment of severe, breakthrough pain. However, selective MOR agonists including fentanyl and morphine derivatives are limited clinically due to high risks of dependence, tolerance, and respiratory depression. We recently reported the development of a long-acting, bifunctional MOR agonist/δ-opioid receptor (DOR) antagonist analgesic devoid of tolerance or dependence in mice (AAH8, henceforth referred to as 2B). To address the need for short-acting treatments for breakthrough pain, we present a series of novel, short-acting, high-potency MOR agonist/DOR antagonist ligands with antinociceptive activity in vivo. In this study, we utilized a two-dimensional structure-activity relationship matrix to identify pharmacological trends attributable to combinations of two key pharmacophore elements within the chemotype. This work enhances our ability to modulate efficacy at MOR and DOR, accessing a variety of bifunctional profiles while maintaining high affinity and potency at both receptors.
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39
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Wang K, Xu B, Wu J, Zhu Y, Guo L, Xie J. Elucidating fentanyls differentiation from morphines in chemical and biological samples with surface‐enhanced Raman spectroscopy. Electrophoresis 2019; 40:2193-2203. [DOI: 10.1002/elps.201900004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 02/13/2019] [Accepted: 02/14/2019] [Indexed: 01/06/2023]
Affiliation(s)
- Kai Wang
- State Key Laboratory of Toxicology and Medical Countermeasures and Laboratory of Toxicant Analysis Institute of Pharmacology and Toxicology Academy of Military Medical Sciences Beijing P. R. China
| | - Bin Xu
- State Key Laboratory of Toxicology and Medical Countermeasures and Laboratory of Toxicant Analysis Institute of Pharmacology and Toxicology Academy of Military Medical Sciences Beijing P. R. China
| | - Jianfeng Wu
- State Key Laboratory of Toxicology and Medical Countermeasures and Laboratory of Toxicant Analysis Institute of Pharmacology and Toxicology Academy of Military Medical Sciences Beijing P. R. China
| | - Yingjie Zhu
- State Key Laboratory of Toxicology and Medical Countermeasures and Laboratory of Toxicant Analysis Institute of Pharmacology and Toxicology Academy of Military Medical Sciences Beijing P. R. China
| | - Lei Guo
- State Key Laboratory of Toxicology and Medical Countermeasures and Laboratory of Toxicant Analysis Institute of Pharmacology and Toxicology Academy of Military Medical Sciences Beijing P. R. China
| | - Jianwei Xie
- State Key Laboratory of Toxicology and Medical Countermeasures and Laboratory of Toxicant Analysis Institute of Pharmacology and Toxicology Academy of Military Medical Sciences Beijing P. R. China
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40
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Cunningham CW, Elballa WM, Vold SU. Bifunctional opioid receptor ligands as novel analgesics. Neuropharmacology 2019; 151:195-207. [PMID: 30858102 DOI: 10.1016/j.neuropharm.2019.03.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 01/30/2019] [Accepted: 03/02/2019] [Indexed: 12/12/2022]
Abstract
Prolonged treatment of chronic severe pain with opioid analgesics is frought with problematic adverse effects including tolerance, dependence, and life-threatening respiratory depression. Though these effects are mediated predominately through preferential activation of μ opioid peptide (μOP) receptors, there is an emerging appreciation that actions at κOP and δOP receptors contribute to the observed pharmacologic and behavioral profile of μOP receptor agonists and may be targeted simultaneously to afford improved analgesic effects. Recent developments have also identified the related nociceptin opioid peptide (NOP) receptor as a key modulator of the effects of μOP receptor signaling. We review here the available literature describing OP neurotransmitter systems and highlight recent drug and probe design strategies.
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Affiliation(s)
| | - Waleed M Elballa
- Department of Pharmaceutical Sciences, Concordia University Wisconsin, Mequon, WI, USA.
| | - Stephanie U Vold
- Department of Pharmaceutical Sciences, Concordia University Wisconsin, Mequon, WI, USA.
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41
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Abstract
Unwashed poppy seeds are widely available online through private websites or via well-known sellers such as eBay and Amazon. These seeds can be used to produce a tea that contains an opioid content sufficient to produce psychoactive effects and to cause withdrawal symptoms when discontinued abruptly, yet their sale and distribution is legal in the United States. Clinicians may not be aware of poppy seed tea and some individuals may use it habitually or as an analgesic. There is a paucity of literature on this topic, although a few cases of poppy seed tea intoxication and dependence have been reported. A clinical case is presented here.
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Abstract
Drug use and the associated overdose deaths have been a serious public health threat in the United States and the world. While traditional drugs of abuse such as cocaine remain popular, recreational use of newer synthetic drugs has continued to increase, but the prevalence of use is likely underestimated. In this review, epidemiology, chemistry, pharmacophysiology, clinical effects, laboratory detection, and clinical treatment are discussed for newly emerging drugs of abuse in the following classes: (1) opioids (e.g., fentanyl, fentanyl analogues, and mitragynine), (2) cannabinoids [THC and its analogues, alkylindole (e.g., JWH-018, JWH-073), cyclohexylphenol (e.g., CP-47,497), and indazole carboxamide (e.g., FUB-AMB, ADB-FUBINACA)], (3) stimulants and hallucinogens [β-keto amphetamines (e.g., methcathinone, methylone), pyrrolidinophenones (e.g., α-PVP, MDPV), and dimethoxyphenethylamine ("2C" and "NBOMe")], (4) dissociative agents (e.g., 3-MeO-PCP, methoxetamine, 2-oxo-PCE), and (5) sedative-hypnotics (e.g., gabapentin, baclofen, clonazolam, etizolam). It is critically important to coordinate hospital, medical examiner, and law enforcement personnel with laboratory services to respond to these emerging threats.
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Affiliation(s)
- Kenichi Tamama
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA. .,Clinical Laboratories, University of Pittsburgh Medical Center Presbyterian Hospital, Pittsburgh, PA, USA. .,McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA. .,Clinical Laboratory, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, PA, USA.
| | - Michael J Lynch
- Division of Medical Toxicology, Department of Emergency Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA. .,Pittsburgh Poison Center, Pittsburgh, PA, USA.
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Presley CC, Lindsley CW. DARK Classics in Chemical Neuroscience: Opium, a Historical Perspective. ACS Chem Neurosci 2018; 9:2503-2518. [PMID: 30247870 DOI: 10.1021/acschemneuro.8b00459] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Opium is the latex from the opium poppy Papaver somniferum L., which humankind has utilized since ancient Mesopotamia all the way to modern times. Opium used to be surrounded in divine mystery or magic-like abilities and was given to cure a wide variety of diseases until its analgesic, antitussive, and antidiarrheal properties were understood, the resulting alkaloids were isolated, and their structure and properties unmasked. Opium went from being sold in any store front in the form of pills or tinctures with no prescription necessary for purchase or smoked in an opium den down the street, to then bringing about consumer advocacy and the right to know what is in a medication. Legislation was created to limit the prescribing and selling of medications to doctors and pharmacists as well as outlawing opium dens and smoking opium. This review focuses primarily on the uses of opium throughout history, the isolation of the principle alkaloids, and their structure elucidation.
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Affiliation(s)
- Christopher C. Presley
- Vanderbilt Center for Neuroscience Drug Discovery, Nashville, Tennessee 37232, United States
| | - Craig W. Lindsley
- Vanderbilt Center for Neuroscience Drug Discovery, Nashville, Tennessee 37232, United States
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Burns SM, Cunningham CW, Mercer SL. DARK Classics in Chemical Neuroscience: Fentanyl. ACS Chem Neurosci 2018; 9:2428-2437. [PMID: 29894151 DOI: 10.1021/acschemneuro.8b00174] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Fentanyl rose to prominence as an alternative analgesic to morphine nearly 50 years ago; today, fentanyl has re-emerged as a dangerous recreational substance. The increased potency and analgesic effect of fentanyl are advantageous in the treatment of pain but are also responsible for the rise in unintentional opioid overdose deaths. In response to this crisis, fentanyl, its analogues, and even precursors are under heightened regulatory scrutiny. Despite this controversial history, derivatization of fentanyl has resulted in numerous synthetic analogues that provide valuable insights into opioid receptor binding and signaling events. In this review, the impact of fentanyl on chemical neuroscience is shown through its synthesis and properties, manufacturing, metabolism, pharmacology, approved and off-label indications, adverse effects, and the responsibility it has in the opioid epidemic.
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Affiliation(s)
- S. Mallory Burns
- Department of Pharmaceutical Sciences, Lipscomb University College of Pharmacy, Nashville, Tennessee 37204, United States
| | - Christopher W. Cunningham
- Department of Pharmaceutical Sciences, Concordia University Wisconsin School of Pharmacy, Mequon, Wisconsin 53097, United States
| | - Susan L. Mercer
- Department of Pharmaceutical Sciences, Lipscomb University College of Pharmacy, Nashville, Tennessee 37204, United States
- Department of Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, United States
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