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Dauer LT, Walsh L, Mumma MT, Cohen SS, Golden AP, Howard SC, Roemer GE, Boice JD. Moon, Mars and Minds: Evaluating Parkinson's disease mortality among U.S. radiation workers and veterans in the million person study of low-dose effects. Z Med Phys 2024; 34:100-110. [PMID: 37537100 PMCID: PMC10919963 DOI: 10.1016/j.zemedi.2023.07.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/06/2023] [Accepted: 07/07/2023] [Indexed: 08/05/2023]
Abstract
BACKGROUND Radiation is one of the most important stressors related to missions in space beyond Earth's orbit. Epidemiologic studies of exposed workers have reported elevated rates of Parkinson's disease. The importance of cognitive dysfunction related to low-dose rate radiation in humans is not defined. A meta-analysis was conducted of six cohorts in the Million Person Study (MPS) of low-dose health effects to learn whether there is consistent evidence that Parkinson's disease is associated with radiation dose to brain. MATERIALS AND METHODS The MPS evaluates all causes of death among U.S. radiation workers and veterans, including Parkinson's disease. Systematic and consistent methods are applied to study all categories of workers including medical radiation workers, industrial radiographers, nuclear power plant workers, atomic veterans, and Manhattan Projects workers at the Los Alamos National Laboratory and at Rocky Flats. Consistent methods for all cohorts are used to estimate organ-specific doses and to obtain vital status and cause of death. RESULTS The meta-analysis include 6 cohorts within the MPS, consisting of 517,608 workers and 17,219,001 person-years of observation. The mean dose to brain ranged from 6.9 to 47.6 mGy and the maximum dose from 0.76 to 2.7 Gy. Five of the 6 cohorts revealed positive associations with Parkinson's disease. The overall summary estimate from the meta-analysis was statistically significant based on 1573 deaths due to Parkinson's disease. The summary excess relative risk at 100 mGy was 0.17 (95% CI: 0.05; 0.29). CONCLUSIONS Parkinson's disease was positively associated with radiation in the MPS cohorts indicating the need for careful evaluation as to causality in other studies, delineation of possible mechanisms, and assessing possible implications for space travel as well as radiation protection guidance for terrestrial workers.
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Affiliation(s)
- Lawrence T Dauer
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
| | - Linda Walsh
- Department of Physics, University of Zürich, Zürich, Switzerland
| | - Michael T Mumma
- Vanderbilt University Medical Center's International Epidemiology Field Station, Rockville, MD, USA
| | | | - Ashley P Golden
- ORISE Health Studies Program, Oak Ridge Associated Universities, Oak Ridge, TN, USA
| | - Sara C Howard
- ORISE Health Studies Program, Oak Ridge Associated Universities, Oak Ridge, TN, USA
| | - Grace E Roemer
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - John D Boice
- National Council on Radiation Protection and Measurements, Bethesda, MD, USA; Vanderbilt University School of Medicine, Nashville, TN, USA
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2
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Wang X, Yang J, Huang P, Wang D, Zhang Z, Zhou Z, Liang L, Yao R, Yang L. Cytisine: State of the art in pharmacological activities and pharmacokinetics. Biomed Pharmacother 2024; 171:116210. [PMID: 38271893 DOI: 10.1016/j.biopha.2024.116210] [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: 11/14/2023] [Revised: 01/02/2024] [Accepted: 01/22/2024] [Indexed: 01/27/2024] Open
Abstract
Cytisine is a naturally occurring bioactive compound, an alkaloid mainly isolated from legume plants. In recent years, various biological activities of cytisine have been explored, showing certain effects in smoking cessation, reducing drinking behavior, anti-tumor, cardiovascular protection, blood sugar regulation, neuroprotection, osteoporosis prevention and treatment, etc. At the same time, cytisine has the advantages of high efficiency, safety, and low cost, has broad development prospects, and is a drug of great application value. However, a summary of cytisine's biological activities is currently lacking. Therefore, this paper summarizes the pharmacological action, mechanism, and pharmacokinetics of cytisine by referring to numerous databases, and analyzes the new and core targets of cytisine with the help of computer simulation technology, to provide reference for doctors.
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Affiliation(s)
- Xuezhen Wang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Jiaming Yang
- Research Center for Infectious Diseases, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Peifeng Huang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Dong Wang
- The First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Zhibin Zhang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Zehua Zhou
- Research Center for Infectious Diseases, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Leiqin Liang
- Research Center for Infectious Diseases, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
| | - Rongmei Yao
- Research Center for Infectious Diseases, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
| | - Long Yang
- School of Integrative Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; Research Center for Infectious Diseases, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; School of Public Health, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
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3
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Mineur YS, Picciotto MR. How can I measure brain acetylcholine levels in vivo? Advantages and caveats of commonly used approaches. J Neurochem 2023; 167:3-15. [PMID: 37621094 PMCID: PMC10616967 DOI: 10.1111/jnc.15943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 08/26/2023]
Abstract
The neurotransmitter acetylcholine (ACh) plays a central role in the regulation of multiple cognitive and behavioral processes, including attention, learning, memory, motivation, anxiety, mood, appetite, and reward. As a result, understanding ACh dynamics in the brain is essential for elucidating the neural mechanisms underlying these processes. In vivo measurements of ACh in the brain have been challenging because of the low concentrations and rapid turnover of this neurotransmitter. Here, we review a number of techniques that have been developed to measure ACh levels in the brain in vivo. We follow this with a deeper focus on use of genetically encoded fluorescent sensors coupled with fiber photometry, an accessible technique that can be used to monitor neurotransmitter release with high temporal resolution and specificity. We conclude with a discussion of methods for analyzing fiber photometry data and their respective advantages and disadvantages. The development of genetically encoded fluorescent ACh sensors is revolutionizing the field of cholinergic signaling, allowing temporally precise measurement of ACh release in awake, behaving animals. Use of these sensors has already begun to contribute to a mechanistic understanding of cholinergic modulation of complex behaviors.
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Affiliation(s)
- Yann S. Mineur
- Department of Psychiatry, Yale University School of Medicine, 34 Park Street, 3 Floor Research, New Haven, CT 06508, USA
| | - Marina R. Picciotto
- Department of Psychiatry, Yale University School of Medicine, 34 Park Street, 3 Floor Research, New Haven, CT 06508, USA
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4
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Kamens HM, Flarend G, Horton WJ. The role of nicotinic receptors in alcohol consumption. Pharmacol Res 2023; 190:106705. [PMID: 36813094 PMCID: PMC10083870 DOI: 10.1016/j.phrs.2023.106705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 02/14/2023] [Accepted: 02/19/2023] [Indexed: 02/22/2023]
Abstract
The use of alcohol causes significant morbidity and mortality across the globe. Alcohol use disorder (AUD) is defined by the excessive use of this drug despite a negative impact on the individual's life. While there are currently medications available to treat AUD, they have limited efficacy and several side effects. As such, it is essential to continue to look for novel therapeutics. One target for novel therapeutics is nicotinic acetylcholine receptors (nAChRs). Here we systematically review the literature on the involvement of nAChRs in alcohol consumption. Data from both genetic and pharmacology studies provide evidence that nAChRs modulate alcohol intake. Interestingly, pharmacological modulation of all nAChR subtypes examined can decrease alcohol consumption. The reviewed literature demonstrates that nAChRs should continue to be investigated as novel therapeutics for AUD.
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Affiliation(s)
- Helen M Kamens
- Department of Biobehavioral Health, The Pennsylvania State University, University Park, PA 16802, United States.
| | - Geneva Flarend
- Department of Biobehavioral Health, The Pennsylvania State University, University Park, PA 16802, United States
| | - William J Horton
- Department of Biobehavioral Health, The Pennsylvania State University, University Park, PA 16802, United States
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5
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Mineur YS, Soares AR, Etherington IM, Abdulla ZI, Picciotto MR. Pathophysiology of nAChRs: limbic circuits and related disorders. Pharmacol Res 2023; 191:106745. [PMID: 37011774 DOI: 10.1016/j.phrs.2023.106745] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 03/21/2023] [Accepted: 03/24/2023] [Indexed: 04/03/2023]
Abstract
Human epidemiological studies have identified links between nicotine intake and stress disorders, including anxiety, depression and PTSD. Here we review the clinical evidence for activation and desensitization of nicotinic acetylcholine receptors (nAChRs) relevant to affective disorders. We go on to describe clinical and preclinical pharmacological studies suggesting that nAChR function may be involved in the etiology of anxiety and depressive disorders, may be relevant targets for medication development, and may contribute to the antidepressant efficacy of non-nicotinic therapeutics. We then review what is known about nAChR function in a subset of limbic system areas (amygdala, hippocampus and prefrontal cortex), and how this contributes to stress-relevant behaviors in preclinical models that may be relevant to human affective disorders. Taken together, the preclinical and clinical literature point to a clear role for ACh signaling through nAChRs in regulation of behavioral responses to stress. Disruption of nAChR homeostasis is likely to contribute to the psychopathology observed in anxiety and depressive disorders. Targeting specific nAChRs may therefore be a strategy for medication development to treat these disorders or to augment the efficacy of current therapeutics.
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Affiliation(s)
| | - Alexa R Soares
- Department of Psychiatry, USA; Interdepartmental Neuroscience Program, Yale University School of Medicine, 34 Park Street, 3rd Floor Research, New Haven, CT 06508, USA
| | - Ian M Etherington
- Department of Psychiatry, USA; Interdepartmental Neuroscience Program, Yale University School of Medicine, 34 Park Street, 3rd Floor Research, New Haven, CT 06508, USA
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6
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Wang Q, Ni S, Yu L, Pan Y, Wang Y. Photoexcited Direct Amination/Amidation of Inert Csp 3–H Bonds via Tungsten–Nickel Catalytic Relay. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qing Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Shengyang Ni
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Lei Yu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yi Pan
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yi Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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7
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Nirogi R, Abraham R, Jayarajan P, Goura V, Kallepalli R, Medapati RB, Tadiparthi J, Goyal VK, Pandey SK, Subramanian R, Petlu S, Thentu JB, Palacharla VRC, Gagginapally SR, Mohammed AR, Jasti V. Ropanicant (SUVN-911), an α4β2 nicotinic acetylcholine receptor antagonist intended for the treatment of depressive disorders: pharmacological, behavioral, and neurochemical characterization. Psychopharmacology (Berl) 2022; 239:2215-2232. [PMID: 35298691 DOI: 10.1007/s00213-022-06108-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 01/16/2022] [Indexed: 11/26/2022]
Abstract
RATIONALE Ropanicant (SUVN-911) (3-(6-Chloropyridine-3-yloxymethyl)-2-azabicyclo (3.1.0) hexane hydrochloride) is a novel α4β2 nicotinic acetylcholine receptor (nAChR) antagonist being developed for the treatment of depressive disorders. OBJECTIVES Pharmacological and neurochemical characterization of Ropanicant to support a potential molecule for the treatment of depressive disorders. METHODS Ropanicant was assessed for antidepressant-like activity using the rat forced swimming test (FST) and differential reinforcement of low rate -72 s (DRL-72 s). Alleviation of anhedonia was assessed in chronic mild stress model using sucrose preference test. To understand the mechanism of action, serotonin levels, ionized calcium-binding adaptor molecule 1 (Iba1), and brain-derived neurotrophic factor (BDNF) were determined. The onset of antidepressant-like activity was determined using the reduction in submissive behavior assay. The effects on cognition and sexual functions were assessed using the object recognition task and sexual dysfunction assay respectively. Interaction of Ropanicant, TC-5214, and methyllycaconitine (MLA) with citalopram was investigated individually in mice FST. RESULTS Ropanicant exhibited antidepressant like properties in the FST and DRL-72 s. A significant reduction in anhedonia was observed in the sucrose preference test. Oral administration of Ropanicant produced a significant increase in serotonin and BDNF levels, with a reduction in the Iba1 activity. The onset of antidepressant like effect with Ropanicant was within a week of treatment, and was devoid of cognitive dulling and sexual dysfunction. While Ropanicant potentiated the effect of citalopram in FST, such an effect was not observed with MLA or TC-5214. CONCLUSIONS Preclinical studies with Ropanicant support the likelihood of its therapeutic utility in the treatment of depressive disorders.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Venkat Jasti
- Suven Life Sciences Ltd, Hyderabad, 500034, India
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8
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Appiani R, Pallavicini M, Hamouda AK, Bolchi C. Pyrrolidinyl benzofurans and benzodioxanes: Selective α4β2 nicotinic acetylcholine receptor ligands with different activity profiles at the two receptor stoichiometries. Bioorg Med Chem Lett 2022; 65:128701. [PMID: 35346843 DOI: 10.1016/j.bmcl.2022.128701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/17/2022] [Accepted: 03/23/2022] [Indexed: 11/28/2022]
Abstract
A series of racemic benzofurans bearing N-methyl-2-pyrrolidinyl residue at C(2) or C(3) has been synthesized and tested for affinity at the α4β2 and α3β4 nicotine acetylcholine receptors (nAChRs). As previously reported for the benzodioxane based analogues, hydroxylation at proper position of benzene ring results in high α4β2 nAChR affinity and α4β2 vs. α3β4 nAChR selectivity. 7-Hydroxy-N-methyl-2-pyrrolidinyl-1,4-benzodioxane (2) and its 7- and 5-amino benzodioxane analogues 3 and 4, which are all α4β2 nAChR partial agonists, and 2-(N-methyl-2-pyrrolidinyl)-6-hydroxybenzofuran (12) were selected for functional characterization at the two α4β2 stoichiometries, the high sensitivity (α4)2(β2)3 and the low sensitivity (α4)3(β2)2. The benzene pattern substitution, which had previously been found to control α4β2 partial agonist activity and α4β2 vs. α3β4 selectivity, proved to be also involved in stoichiometry-selectivity. The 7-hydroxybenzodioxane derivative 2 selectively activates (α4)2(β2)3 nAChR, which cannot be activated by its 5-amino analogue 4. A marginal structural modification, not altering the base pyrrolidinyl benzodioxane scaffold, resulted in opposite activity profiles at the two α4β2 nAChR isoforms providing an interesting novel case study.
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Affiliation(s)
- Rebecca Appiani
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Mangiagalli 25, I-20133 Milano, Italy.
| | - Marco Pallavicini
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Mangiagalli 25, I-20133 Milano, Italy.
| | - Ayman K Hamouda
- Department of Pharmaceutical Sciences and Health Outcomes, Fisch College of Pharmacy, The University of Texas at Tyler, Tyler, TX, USA.
| | - Cristiano Bolchi
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Mangiagalli 25, I-20133 Milano, Italy.
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9
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Alijevic O, Jaka O, Alzualde A, Maradze D, Xia W, Frentzel S, Gifford AN, Peitsch MC, Hoeng J, Koshibu K. Differentiating the Neuropharmacological Properties of Nicotinic Acetylcholine Receptor-Activating Alkaloids. Front Pharmacol 2022; 13:668065. [PMID: 35392565 PMCID: PMC8980233 DOI: 10.3389/fphar.2022.668065] [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: 02/15/2021] [Accepted: 02/21/2022] [Indexed: 11/13/2022] Open
Abstract
Alkaloids that target nicotinic acetylcholine receptors (nAChR) are of great interest because of the critical role they play in mood and anxiety. However, understanding of the neuropharmacological effects of nicotinic alkaloids, such as cotinine and anatabine, is very limited. In this study, we investigated the neuropharmacological effects of three naturally occurring alkaloids-nicotine, cotinine, and anatabine-in vitro and in vivo. A single injection of nicotine induced anxiolytic-like behavioral features in mice by using the SmartCube® behavioral profiling system, while cotinine and anatabine had no detectable effect. The results were corroborated by using the zebrafish novel tank test (NTT), which showed a profound anxiolytic-like effect induced by multiple doses of nicotine after a single 20-min treatment. When the regulation of dopamine and norepinephrine release-the neurotransmitter systems relevant for anxiety-were examined in vitro, we found that nicotine stimulated the release of both norepinephrine and dopamine, while cotinine and anatabine mainly stimulated the dopamine release. The molecular targets of nicotine were confirmed to be nAChRs with its most potent activities against α4β2 and α6/3β2β3 subtypes in vitro. Anatabine was a weaker agonist for these receptors than nicotine. Cotinine was the least potent nAChR compound, only being able to activate α4β2 and α6/3β2β3 subtypes at high doses and no detectable activities against α3β4 and α7 subtypes at the concentrations tested. The observed effects were unlikely due to the off-target effect, because these alkaloids did not bind or regulate >160 other molecular targets in vitro. Thus, the present results suggest that natural nicotinic alkaloids can induce an anxiolytic-like behavior in nonclinical animal models, potency of which may depend on the activation of various nAChRs and regulation of various neurotransmitter systems. Further investigations would help understand their effects on humans, because non-clinical studies should not be taken as a direct indication for human behavior and nicotine is not risk free.
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Affiliation(s)
- Omar Alijevic
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | | | | | - Diana Maradze
- Gifford Bioscience Ltd., The BioHub Birmingham, Birmingham, United Kingdom
| | - Wenhao Xia
- PMI R&D, Philip Morris International Research Laboratories Pte. Ltd., Singapore, Singapore
| | - Stefan Frentzel
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Andrew N Gifford
- Gifford Bioscience Ltd., The BioHub Birmingham, Birmingham, United Kingdom
| | | | - Julia Hoeng
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
| | - Kyoko Koshibu
- PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland
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10
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Yao C, Jiang X, Ye X, Xie T, Bai R. Antidepressant Drug Discovery and Development: Mechanism and Drug Design Based on Small Molecules. ADVANCED THERAPEUTICS 2022. [DOI: 10.1002/adtp.202200007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Chuansheng Yao
- School of Pharmacy Hangzhou Normal University Hangzhou 311121 PR China
- Key Laboratory of Elemene Class Anti‐Cancer Chinese Medicine of Zhejiang Province Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province Collaborative Innovation Center of Chinese Medicines from Zhejiang Province Hangzhou Normal University Hangzhou 311121 PR China
| | - Xiaoying Jiang
- College of Material, Chemistry and Chemical Engineering Key Laboratory of Organosilicon Chemistry and Material Technology Ministry of Education, Hangzhou Normal University Hangzhou 311121 P.R. China
| | - Xiang‐Yang Ye
- School of Pharmacy Hangzhou Normal University Hangzhou 311121 PR China
- Key Laboratory of Elemene Class Anti‐Cancer Chinese Medicine of Zhejiang Province Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province Collaborative Innovation Center of Chinese Medicines from Zhejiang Province Hangzhou Normal University Hangzhou 311121 PR China
| | - Tian Xie
- School of Pharmacy Hangzhou Normal University Hangzhou 311121 PR China
- Key Laboratory of Elemene Class Anti‐Cancer Chinese Medicine of Zhejiang Province Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province Collaborative Innovation Center of Chinese Medicines from Zhejiang Province Hangzhou Normal University Hangzhou 311121 PR China
| | - Renren Bai
- School of Pharmacy Hangzhou Normal University Hangzhou 311121 PR China
- Key Laboratory of Elemene Class Anti‐Cancer Chinese Medicine of Zhejiang Province Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province Collaborative Innovation Center of Chinese Medicines from Zhejiang Province Hangzhou Normal University Hangzhou 311121 PR China
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11
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Wang Q, Ni S, Wang X, Wang Y, Pan Y. Visible-light-mediated tungsten-catalyzed C-H amination of unactivated alkanes with nitroarenes. Sci China Chem 2022. [DOI: 10.1007/s11426-021-1170-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Effects of nicotinic acetylcholine receptor-activating alkaloids on anxiety-like behavior in zebrafish. J Nat Med 2021; 75:926-941. [PMID: 34264421 PMCID: PMC8397634 DOI: 10.1007/s11418-021-01544-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 06/24/2021] [Indexed: 12/16/2022]
Abstract
Alkaloids are a structurally complex group of natural products that have a diverse range of biological activities and significant therapeutic applications. In this study, we examined the acute, anxiolytic-like effects of nicotinic acetylcholine receptor (nAChR)-activating alkaloids with reported neuropharmacological effects but whose effects on anxiety are less well understood. Because α4β2 nAChRs can regulate anxiety, we first demonstrated the functional activities of alkaloids on these receptors in vitro. Their effects on anxiety-like behavior in zebrafish were then examined using the zebrafish novel tank test (NTT). The NTT is a relatively high-throughput behavioral paradigm that takes advantage of the natural tendency of fish to dive down when stressed or anxious. We report for the first time that cotinine, anatabine, and methylanatabine may suppress this anxiety-driven zebrafish behavior after a single 20-min treatment. Effective concentrations of these alkaloids were well above the concentrations naturally found in plants and the concentrations needed to induce anxiolytic-like effect by nicotine. These alkaloids showed good receptor interactions at the α4β2 nAChR agonist site as demonstrated by in vitro binding and in silico docking model, although somewhat weaker than that for nicotine. Minimal or no significant effect of other compounds may have been due to low bioavailability of these compounds in the brain, which is supported by the in silico prediction of blood–brain barrier permeability. Taken together, our findings indicate that nicotine, although not risk-free, is the most potent anxiolytic-like alkaloid tested in this study, and other natural alkaloids may regulate anxiety as well. ![]()
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Yu Z, Kong D, Liang Y, Zhao X, Du G. Protective effects of VMY-2-95 on corticosterone-induced injuries in mice and cellular models. Acta Pharm Sin B 2021; 11:1903-1913. [PMID: 34386327 PMCID: PMC8343195 DOI: 10.1016/j.apsb.2021.03.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 09/29/2020] [Accepted: 10/21/2020] [Indexed: 11/21/2022] Open
Abstract
Nicotinic α4β2 receptor antagonists have drawn increasing attention in the development of new antidepressants. In this study, we aimed to investigate the protective effect of VMY-2-95, the new selective antagonist of α4β2 nicotinic acetylcholine receptor (nAChR) on corticosterone (CORT) injured mice and cellular models. Fluoxetine was applied as a positive control, and the effects of VMY-2-95 were investigated with three different doses or concentrations (1, 3, 10 mg/kg in mice, and 0.003, 0.03, 0.1 μmol/L in cells). As a result, VMY-2-95 showed significant antidepressant-like effects in the CORT injured mice by improving neuromorphic function, promoting hippocampal nerve proliferation, and regulating the contents of monoamine transmitters. Meanwhile, VMY-2-95 exhibited protective effects on cell viability, cell oxidant, cell apoptosis, and mitochondrial energy metabolism on corticosterone-impaired SH-SY5Y cells. Also, the PKA-CREB-BDNF signaling pathway was up-regulated by VMY-2-95 both in vitro and in vivo, and pathway blockers were also combined with VMY-2-95 to verify the effects furtherly. Therefore, we preliminarily proved that VMY-2-95 had protective effects in depressed mice and SH-SY5Y cells against injuries induced by corticosterone. This work indicated that the application of VMY-2-95 is a potential pharmacological solution for depression. This study also supported the development of α4β2 nAChR antagonists towards neuropsychiatric dysfunctions.
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Affiliation(s)
- Ziru Yu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Dewen Kong
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Yu Liang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xiaoyue Zhao
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Guanhua Du
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of Drug Target and Screening Research, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
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Hawkey AB, Hoeng J, Peitsch MC, Levin ED, Koshibu K. Subchronic effects of plant alkaloids on anxiety-like behavior in zebrafish. Pharmacol Biochem Behav 2021; 207:173223. [PMID: 34197843 DOI: 10.1016/j.pbb.2021.173223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/18/2021] [Accepted: 06/25/2021] [Indexed: 11/16/2022]
Abstract
Zebrafish provide a valuable emerging complementary model for neurobehavioral research. They offer a powerful way to screen for the potential therapeutic effects of neuroactive drugs. A variety of behavioral tests for zebrafish have been developed and validated for assessing neurobehavioral function. The novel tank diving test is a straightforward, reproducible way of measuring anxiety-like behavior in zebrafish. When introduced into a novel tank, zebrafish normally dive to the bottom of the tank and then gradually explore the higher levels of the water column as time progresses. Buspirone is an effective anxiolytic drug in humans, which has been found, with acute administration, to reduce this anxiety-like response in zebrafish. The current study used the zebrafish model to evaluate the potential anxiolytic effects of alkaloids, commonly found in Solanaceae plants, with known neuropharmacology relevant to mood regulation. In line with previous findings, acute treatment with anxiolytic positive controls buspirone and the plant alkaloid nicotine reduced the anxiety-like diving response in the zebrafish novel tank diving test. Further, both buspirone and nicotine continued to produce anxiolytic-like effects in zebrafish after 5 days of exposure. In the same treatment paradigm, the effects of five other alkaloids-cotinine, anatabine, anabasine, harmane, and norharmane-were investigated. Cotinine, the major metabolite of nicotine, also caused anxiolytic-like effects, albeit at a dose higher than the effective dose of nicotine. Nicotine's anxiolytic-like effect was not shared by the other nicotinic alkaloids, anabasine and anatabine, or by the naturally present monoamine oxidase inhibitors harmane and norharmane. We conclude that nicotine uniquely induces anxiolytic-like effects after acute and subchronic treatment in zebrafish. The zebrafish model with the novel tank diving test could be a useful complement to rodent models for screening candidate compounds for anxiolytic effects in nonclinical studies.
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Affiliation(s)
- Andrew B Hawkey
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC 27710, USA
| | - Julia Hoeng
- PMI R&D, Philip Morris Products S.A., Quai Jeanrenaud 5, CH-2000 Neuchâtel, Switzerland
| | - Manuel C Peitsch
- PMI R&D, Philip Morris Products S.A., Quai Jeanrenaud 5, CH-2000 Neuchâtel, Switzerland
| | - Edward D Levin
- Department of Psychiatry and Behavioral Sciences, Duke University School of Medicine, Durham, NC 27710, USA.
| | - Kyoko Koshibu
- PMI R&D, Philip Morris Products S.A., Quai Jeanrenaud 5, CH-2000 Neuchâtel, Switzerland
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15
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Bavo F, Pallavicini M, Appiani R, Bolchi C. Determinants for α4β2 vs. α3β4 Subtype Selectivity of Pyrrolidine-Based nAChRs Ligands: A Computational Perspective with Focus on Recent cryo-EM Receptor Structures. Molecules 2021; 26:molecules26123603. [PMID: 34204637 PMCID: PMC8231201 DOI: 10.3390/molecules26123603] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/08/2021] [Accepted: 06/10/2021] [Indexed: 12/26/2022] Open
Abstract
The selectivity of α4β2 nAChR agonists over the α3β4 nicotinic receptor subtype, predominant in ganglia, primarily conditions their therapeutic range and it is still a complex and challenging issue for medicinal chemists and pharmacologists. Here, we investigate the determinants for such subtype selectivity in a series of more than forty α4β2 ligands we have previously reported, docking them into the structures of the two human subtypes, recently determined by cryo-electron microscopy. They are all pyrrolidine based analogues of the well-known α4β2 agonist N-methylprolinol pyridyl ether A-84543 and differ in the flexibility and pattern substitution of their aromatic portion. Indeed, the direct or water mediated interaction with hydrophilic residues of the relatively narrower β2 minus side through the elements decorating the aromatic ring and the stabilization of the latter by facing to the not conserved β2-Phe119 result as key distinctive features for the α4β2 affinity. Consistently, these compounds show, despite the structural similarity, very different α4β2 vs. α3β4 selectivities, from modest to very high, which relate to rigidity/extensibility degree of the portion containing the aromatic ring and to substitutions at the latter. Furthermore, the structural rationalization of the rat vs. human differences of α4β2 vs. α3β4 selectivity ratios is here proposed.
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Affiliation(s)
- Francesco Bavo
- Dipartimento di Scienze Farmaceutiche, Universita’degli Studi di Milano, I-20133 Milano, Italy; (F.B.); (M.P.); (R.A.)
- Department of Drug Design and Pharmacology, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - Marco Pallavicini
- Dipartimento di Scienze Farmaceutiche, Universita’degli Studi di Milano, I-20133 Milano, Italy; (F.B.); (M.P.); (R.A.)
| | - Rebecca Appiani
- Dipartimento di Scienze Farmaceutiche, Universita’degli Studi di Milano, I-20133 Milano, Italy; (F.B.); (M.P.); (R.A.)
| | - Cristiano Bolchi
- Dipartimento di Scienze Farmaceutiche, Universita’degli Studi di Milano, I-20133 Milano, Italy; (F.B.); (M.P.); (R.A.)
- Correspondence:
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16
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Cytisine and cytisine derivatives. More than smoking cessation aids. Pharmacol Res 2021; 170:105700. [PMID: 34087351 DOI: 10.1016/j.phrs.2021.105700] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 05/29/2021] [Accepted: 05/29/2021] [Indexed: 12/12/2022]
Abstract
Cytisine, a natural bioactive compound that is mainly isolated from plants of the Leguminosae family (especially the seeds of Laburnum anagyroides), has been marketed in central and eastern Europe as an aid in the clinical management of smoking cessation for more than 50 years. Its main targets are neuronal nicotinic acetylcholine receptors (nAChRs), and pre-clinical studies have shown that its interactions with various nAChR subtypes located in different areas of the central and peripheral nervous systems are neuroprotective, have a wide range of biological effects on nicotine and alcohol addiction, regulate mood, food intake and motor activity, and influence the autonomic and cardiovascular systems. Its relatively rigid conformation makes it an attractive template for research of new derivatives. Recent studies of structurally modified cytisine have led to the development of new compounds and for some of them the biological activities are mediated by still unidentified targets other than nAChRs, whose mechanisms of action are still being investigated. The aim of this review is to describe and discuss: 1) the most recent pre-clinical results obtained with cytisine in the fields of neurological and non-neurological diseases; 2) the effects and possible mechanisms of action of the most recent cytisine derivatives; and 3) the main areas warranting further research.
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17
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JWX-A0108, a positive allosteric modulator of α7 nAChR, attenuates cognitive deficits in APP/PS1 mice by suppressing NF-κB-mediated inflammation. Int Immunopharmacol 2021; 96:107726. [PMID: 33975230 DOI: 10.1016/j.intimp.2021.107726] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/14/2021] [Accepted: 04/25/2021] [Indexed: 01/20/2023]
Abstract
Neuroinflammation plays an early and prominent role in the pathology of Alzheimer's disease (AD). Studies have shown that cholinergic lesion is a contributor for the pathophysiology of AD. The α7 nicotinic acetylcholine receptors (nAChRs), a subtype of nAChRs, are abundantly expressed in the brain regions related to cognition and memory, such as hippocampus and frontal cortex. The α7 nAChR is rapidly activated and desensitized by agonists. JWX-A0108 is a type I positive allosteric modulator (PAM) of α7 nAChR, which mainly enhances agonist-evoked peak currents. Here, we used the Morris Water Maze to evaluate the effect of JWX-A0108 on cognition and memory functions in APP/PS1 mice, and the mechanism related to anti-inflammatory effect. The results showed that JWX-A0108 could improve the learning and memory function of APP/PS1 transgenic mice in Morris water maze, decrease the expression of IL-1β, TNF-α, IL-6 in the brain and lower the phosphorylation level of IκBα (Ser32/36) and NF-κB p65 (Ser536), decrease the expression of Iba1, the microglia activation marker. Nissl staining showed that the CA3 and DG regions of hippocampus were damaged in APP/PS1 mice, which was improved by JWX-A0108. All of these effects of JWX-A0108 were reversed by MLA (α7 nAChR specific blocker). Taken together, the results reveal that JWX-A0108 improved the learning and memory function of APP/PS1 mice by enhancing the anti-inflammatory effect of the endogenous choline system through α7 nAChR, inhibited the activation of the NF-κB signaling pathway by inhibiting IκB phosphorylation, and ultimately inhibited inflammatory responses.
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18
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X-ray Crystal Structure and Hirshfeld Analysis of Gem-Aminals-Based Morpholine, Pyrrolidine, and Piperidine Moieties. Symmetry (Basel) 2020. [DOI: 10.3390/sym13010020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The gem-aminals of 1,2-dimorpholinoethane (1) and 1-morpholino-3-morpholinium bromide propane (2) were synthesized by reaction of two molar ratio of morpholine with the halogenating agents in the presence of basic condition (K2CO3) in acetone at room temperature (RT) overnight. The structures of the centro-symmetric compound 1 and the morpholinium salt derivative 2 were assigned unambiguous by single crystal X-ray diffraction analysis and compared with the 1,2-di(pyrrolidin-1-yl)ethane 3 and 1,2-di(piperidin-1-yl)ethane 4. The 1,2-dimorpholinoethane molecule has a center of symmetry at the midpoint of the C-C bond of the ethyl moiety leading to two equivalent halves. It crystallized in monoclinic crystal system and P21/n space group, while the unit cell parameters are determined to be a = 6.0430(3), b = 8.0805(3), c = 11.1700(4) Å, and β = 97.475(2)° with unit cell volume of 540.80(4) Å3 and Z = 2 at 170(2) K. The less symmetric analogue 2 crystallized in the lower space group P21 with unit cell parameters of a = 6.37450(10), b = 11.1378(2), c = 9.6549(2) Å, and β = 93.358(2)°, while the unit cell volume is 684.30(2)Å3 at 120(2) K. Using Hirshfeld analysis, the molecules of 1 are mainly packed by weak N…H (4.2%), O…H (16.8%), and H…H (79.0%) interactions. In contrast, the molecules of 2 are packed by significantly short O…H (14.4%) and Br…H (11.6%) interactions in addition to the relatively long H…H (73.3%) interactions. DFT calculations predicted the molecular geometry of the studied compounds showing a good agreement with the experimental X-ray structures. Due to symmetry considerations, compounds 1, 3, and 4 are nonpolar with zero dipole moment, while the less symmetric molecule 2 has a dipole moment of 6.914 Debye. Their electronic aspects, such as natural population charges, HOMO, and LUMO energies as well as the corresponding reactivity descriptors, were also calculated and discussed.
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Bavo F, Pallavicini M, Gotti C, Appiani R, Moretti M, Colombo SF, Pucci S, Viani P, Budriesi R, Renzi M, Fucile S, Bolchi C. Modifications at C(5) of 2-(2-Pyrrolidinyl)-Substituted 1,4-Benzodioxane Elicit Potent α4β2 Nicotinic Acetylcholine Receptor Partial Agonism with High Selectivity over the α3β4 Subtype. J Med Chem 2020; 63:15668-15692. [PMID: 33325696 DOI: 10.1021/acs.jmedchem.0c01150] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of diastereomeric 2-(2-pyrrolidinyl)-1,4-benzodioxanes bearing a small, hydrogen-bonding substituent at the 7-, 6-, or 5-position of benzodioxane have been studied for α4β2 and α3β4 nicotinic acetylcholine receptor affinity and activity. Analogous to C(5)H replacement with N and to a much greater extent than decoration at C(7), substitution at benzodioxane C(5) confers very high α4β2/α3β4 selectivity to the α4β2 partial agonism. Docking into the two receptor structures recently determined by cryo-electron microscopy and site-directed mutagenesis at the minus β2 side converge in indicating that the limited accommodation capacity of the β2 pocket, compared to that of the β4 pocket, makes substitution at C(5) rather than at more projecting C(7) position determinant for this pursued subtype selectivity.
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Affiliation(s)
- Francesco Bavo
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Mangiagalli 25, I-20133 Milano, Italy
| | - Marco Pallavicini
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Mangiagalli 25, I-20133 Milano, Italy
| | - Cecilia Gotti
- Institute of Neuroscience, CNR, Via Vanvitelli 32, I-20129 Milano, Italy
| | - Rebecca Appiani
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Mangiagalli 25, I-20133 Milano, Italy
| | - Milena Moretti
- Institute of Neuroscience, CNR, Via Vanvitelli 32, I-20129 Milano, Italy.,Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Via Vanvitelli 32, I-20129 Milano, Italy
| | | | - Susanna Pucci
- Institute of Neuroscience, CNR, Via Vanvitelli 32, I-20129 Milano, Italy.,Hunimed University, Via Rita Levi-Montalcini 4, Pieve Emanuele, I-20090 Milan, Italy
| | - Paola Viani
- Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, Via Vanvitelli 32, I-20129 Milano, Italy
| | - Roberta Budriesi
- Dipartimento di Farmacia e Biotecnologie, Università degli Studi di Bologna, Via Belmeloro 6, I-40126 Bologna, Italy
| | - Massimiliano Renzi
- Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Piazzale Moro 5, 00185 Roma, Italy
| | - Sergio Fucile
- Dipartimento di Fisiologia e Farmacologia, Sapienza Università di Roma, Piazzale Moro 5, 00185 Roma, Italy.,I.R.C.C.S. Neuromed, Via Atinese 18, 86077 Pozzilli, Italy
| | - Cristiano Bolchi
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, Via Mangiagalli 25, I-20133 Milano, Italy
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20
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Petruczynik A, Wróblewski K, Misiurek J, Plech T, Szalast K, Wojtanowski K, Mroczek T, Szymczak G, Waksmundzka-Hajnos M, Tutka P. Determination of Cytisine and N-Methylcytisine from Selected Plant Extracts by High-Performance Liquid Chromatography and Comparison of Their Cytotoxic Activity. Toxins (Basel) 2020; 12:toxins12090557. [PMID: 32872484 PMCID: PMC7551552 DOI: 10.3390/toxins12090557] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/24/2020] [Accepted: 08/27/2020] [Indexed: 01/26/2023] Open
Abstract
Quinolizidine alkaloids exhibit various forms of biological activity. A lot of them were found in the Leguminosae family, including Laburnum and Genista. The aim of the study was the optimization of a chromatographic system for the analysis of cytisine and N-methylcytisine in various plant extracts as well as an investigation of the cytotoxic activities of selected alkaloids and plant extracts obtained from Laburnum anagyroides, Laburnum anagyroides L. quercifolium, Laburnum alpinum, Laburnum watereri, Genista germanica, and Genista tinctoria against various cancer cell lines. The determination of investigated compounds was performed by High Performance Liquid Chromatography with Diode Array Detection (HPLC-DAD), while High Performance Liquid Chromatography coupled with Quadrupole Time-of-Flight–Mass Spectrometry (HPLC-QTOF-MS) was applied for the qualitative analysis of plant extracts. The retention, separation selectivity, peaks shape, and systems efficiency obtained for cytisine and N-methylcytisine in different chromatographic systems were compared. The application of columns with alkylbonded and phenyl stationary phases led to a very weak retention of cytisine and N-methylcytisine, even when the mobile phases containing only 5% of organic modifiers were used. The strongest retention was observed when hydrophilic interaction chromatography (HILIC) or especially when ion exchange chromatography (IEC) were applied. The most optimal system in terms of alkaloid retention, peak shape, and system efficiency containing an strong cation exchange (SCX) stationary phase and a mobile phase consisted of 25% acetonitrile and formic buffer at pH 4.0 was applied for investigating alkaloids analysis in plant extracts. Cytotoxic properties of the investigated plant extracts as well as cytisine and N-methylcytisine were examined using human tongue squamous carcinoma cells (SCC-25), human pharyngeal squamous carcinoma cells (FaDu), human triple-negative breast adenocarcinoma cell line (MDA-MB-231), and human breast adenocarcinoma cell line (MCF-7). The highest cytotoxic activity against FaDu, MCF-7, and MDA-MB cancer cell lines was observed after applying the Genista germanica leaves extract. In contrast, the highest cytotoxic activity against SCC-25 cell line was obtained after treating with the seed extract of Laburnum watereri. The investigated plant extracts exhibit significant cytotoxicity against the tested human cancer cell lines and seem to be promising for further research on its anticancer activity.
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Affiliation(s)
- Anna Petruczynik
- Department of Inorganic Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland; (J.M.); (M.W.-H.)
- Correspondence: (A.P.); (K.W.)
| | - Karol Wróblewski
- Department of Experimental and Clinical Pharmacology, University of Rzeszów, Kopisto 2a, 35-959 Rzeszów, Poland;
- Laboratory for Innovative Research in Pharmacology, University of Rzeszów, Kopisto 2a, 35-959 Rzeszów, Poland
- Correspondence: (A.P.); (K.W.)
| | - Justyna Misiurek
- Department of Inorganic Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland; (J.M.); (M.W.-H.)
| | - Tomasz Plech
- Department of Pharmacology, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland; (T.P.); (K.S.)
| | - Karolina Szalast
- Department of Pharmacology, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland; (T.P.); (K.S.)
| | - Krzysztof Wojtanowski
- Department of Pharmacognosy with Medicinal Plant Unit, Medical University of Lublin, Chodźki 1, 20-093 Lublin, Poland; (K.W.); (T.M.)
| | - Tomasz Mroczek
- Department of Pharmacognosy with Medicinal Plant Unit, Medical University of Lublin, Chodźki 1, 20-093 Lublin, Poland; (K.W.); (T.M.)
| | - Grażyna Szymczak
- Botanical Garden of Maria Curie-Skłodowska University in Lublin, Sławinkowska 3, 20-810 Lublin, Poland;
| | - Monika Waksmundzka-Hajnos
- Department of Inorganic Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland; (J.M.); (M.W.-H.)
| | - Piotr Tutka
- Department of Experimental and Clinical Pharmacology, University of Rzeszów, Kopisto 2a, 35-959 Rzeszów, Poland;
- Laboratory for Innovative Research in Pharmacology, University of Rzeszów, Kopisto 2a, 35-959 Rzeszów, Poland
- National Drug and Alcohol Research Centre, University of New South Wales, Sydney, NSW 2031, Australia
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Zhang H, He X, Wang X, Yu B, Zhao S, Jiao P, Jin H, Liu Z, Wang K, Zhang L, Zhang L. Design, synthesis and biological activities of piperidine-spirooxadiazole derivatives as α7 nicotinic receptor antagonists. Eur J Med Chem 2020; 207:112774. [PMID: 32882607 DOI: 10.1016/j.ejmech.2020.112774] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/18/2020] [Accepted: 08/18/2020] [Indexed: 02/02/2023]
Abstract
α: 7 nicotinic acetylcholine receptors (nAChRs) expressed in the nervous and immune systems have been suggested to play important roles in the control of inflammation. However, the lack of antagonist tools specifically inhibiting α7 nAChR impedes the validation of the channel as therapeutic target. To discover a selective α7 antagonist, we started a pharmacophore-based virtual screening and identified a piperidine-spirooxadiazole derivative T761-0184 that acts as a α7 antagonist. A series of novel piperidine-spirooxadiazole derivatives were subsequently synthesized and evaluated using two-electrode voltage clamp (TEVC) assay in Xenopus oocytes. Lead compounds from two series inhibited α7 with their IC50 values ranging from 3.3 μM to 13.7 μM. Compound B10 exhibited α7 selectivity over other α4β2 and α3β4 nAChR subtypes. The analysis of structure-activity relationship (SAR) provides valuable insights for further development of selective α7 nAChR antagonists.
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Affiliation(s)
- Han Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, PR China.
| | - Xiaomeng He
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, PR China.
| | - Xintong Wang
- Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, PR China.
| | - Bo Yu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, PR China.
| | - Siqi Zhao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, PR China.
| | - Peili Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, PR China.
| | - Hongwei Jin
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, PR China.
| | - Zhenming Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, PR China.
| | - KeWei Wang
- Department of Pharmacology, Qingdao University School of Phamacy, Qingdao, 266021, PR China.
| | - Liangren Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, PR China.
| | - Lihe Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, PR China.
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22
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Huang X, Xu H. Advances on the Bioactivities, Total Synthesis, Structural Modification, and Structure-Activity Relationships of Cytisine Derivatives. Mini Rev Med Chem 2020; 20:369-395. [DOI: 10.2174/1389557519666191104121821] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 06/23/2019] [Accepted: 09/18/2019] [Indexed: 02/05/2023]
Abstract
Cytisine is a quinolizidine alkaloid isolated from various Leguminosae plants. Cytisine and
its derivatives exhibit a broad range of biological properties, such as smoking cessation aid, antidepressant,
neuroprotective, nootropic, anticancer, antiviral, antiparasitic, antidiabetic, insecticidal, and nematicidal
activities. In this review, the progress of cytisine and its derivatives in regard to bioactivities,
total synthesis, structural modifications focusing on their N-12 position and lactam ring is reported.
Additionally, the structure-activity relationships of cytisine and its derivatives are also discussed.
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Affiliation(s)
- Xiaobo Huang
- Research Institute of Pesticidal Design & Synthesis, College of Plant Protection/College of Chemistry and Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi Province, China
| | - Hui Xu
- Research Institute of Pesticidal Design & Synthesis, College of Plant Protection/College of Chemistry and Pharmacy, Northwest A&F University, Yangling 712100, Shaanxi Province, China
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23
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Singh P, Varshnaya RK, Dey R, Banerjee P. Donor–Acceptor Cyclopropanes as an Expedient Building Block Towards the Construction of Nitrogen‐Containing Molecules: An Update. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901332] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Priyanka Singh
- Department of ChemistryIndian Institute of Technology Ropar Nangal Road Rupnagar, Punjab 140001 India
| | - Rohit Kumar Varshnaya
- Department of ChemistryIndian Institute of Technology Ropar Nangal Road Rupnagar, Punjab 140001 India
| | - Raghunath Dey
- Department of ChemistryIndian Institute of Technology Ropar Nangal Road Rupnagar, Punjab 140001 India
| | - Prabal Banerjee
- Department of ChemistryIndian Institute of Technology Ropar Nangal Road Rupnagar, Punjab 140001 India
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24
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Nirogi R, Mohammed AR, Shinde AK, Ravella SR, Bogaraju N, Subramanian R, Mekala VR, Palacharla RC, Muddana N, Thentu JB, Bhyrapuneni G, Abraham R, Jasti V. Discovery and Development of 3-(6-Chloropyridine-3-yloxymethyl)-2-azabicyclo[3.1.0]hexane Hydrochloride (SUVN-911): A Novel, Potent, Selective, and Orally Active Neuronal Nicotinic Acetylcholine α4β2 Receptor Antagonist for the Treatment of Depression. J Med Chem 2020; 63:2833-2853. [PMID: 32026697 DOI: 10.1021/acs.jmedchem.9b00790] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A series of chemical optimizations guided by in vitro affinity at the α4β2 receptor in combination with selectivity against the α3β4 receptor, pharmacokinetic evaluation, and in vivo efficacy in a forced swim test resulted in identification of 3-(6-chloropyridine-3-yloxymethyl)-2-azabicyclo[3.1.0]hexane hydrochloride (9h, SUVN-911) as a clinical candidate. Compound 9h is a potent α4β2 receptor ligand with a Ki value of 1.5 nM. It showed >10 μM binding affinity toward the ganglionic α3β4 receptor apart from showing selectivity over 70 other targets. It is orally bioavailable and showed good brain penetration in rats. Marked antidepressant activity and dose-dependent receptor occupancy in rats support its potential therapeutic utility in the treatment of depression. It does not affect the locomotor activity at doses several folds higher than its efficacy dose. It is devoid of cardiovascular and gastrointestinal side effects. Successful long-term safety studies in animals and phase-1 evaluation in healthy humans for safety, tolerability, and pharmacokinetics paved the way for its further development.
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Affiliation(s)
- Ramakrishna Nirogi
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Abdul Rasheed Mohammed
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Anil K Shinde
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Srinivasa Rao Ravella
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Narsimha Bogaraju
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Ramkumar Subramanian
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Venkat Reddy Mekala
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Raghava Choudary Palacharla
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Nageswararao Muddana
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Jagadeesh Babu Thentu
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Gopinadh Bhyrapuneni
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Renny Abraham
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
| | - Venkat Jasti
- Discovery Research, Suven Life Sciences Ltd., Serene Chambers, Road-5, Avenue-7, Banjara Hills, Hyderabad 500 034, India
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25
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Trowbridge A, Walton SM, Gaunt MJ. New Strategies for the Transition-Metal Catalyzed Synthesis of Aliphatic Amines. Chem Rev 2020; 120:2613-2692. [DOI: 10.1021/acs.chemrev.9b00462] [Citation(s) in RCA: 310] [Impact Index Per Article: 77.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Aaron Trowbridge
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Scarlett M. Walton
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
- Oncology
- IMED Biotech Unit, AstraZeneca, Darwin Building, Unit 310, Cambridge Science Park, Milton Road, Cambridge CB4 0WG, United Kingdom
| | - Matthew J. Gaunt
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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26
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Hoskin JL, Al-Hasan Y, Sabbagh MN. Nicotinic Acetylcholine Receptor Agonists for the Treatment of Alzheimer's Dementia: An Update. Nicotine Tob Res 2019; 21:370-376. [PMID: 30137524 DOI: 10.1093/ntr/nty116] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Accepted: 08/18/2018] [Indexed: 01/08/2023]
Abstract
A significant portion of the clinical phenotype observed in Alzheimer's disease (AD) occurs through nicotinic acetylcholine receptors (nAChRs). Degeneration of cholinergic neurons, combined with aberrant nAChR expression and activation partially through amyloid-beta peptide (Aβ)-nAChR leads to upregulation of pro-inflammatory pathways and subsequently the progressive cognitive decline of AD. Interestingly, the cholinergic anti-inflammatory pathway is also mediated through nAChR particularly α7 nAChR. Thus, agonists of these receptors will likely exert pro-cognitive benefits through multiple mechanisms including stimulating the cholinergic pathway, modulating inflammation, and buffering the effects of amyloid. Despite this promising theoretical use, trials thus far have been complicated by adverse effects or minimal improvement. This review will provide an update on several pharmacological nAChR agonists tested in clinical trials and reasons that further investigation of nAChR agonists is merited. IMPLICATIONS nAChRs have consistently presented a promising theoretical use in the treatment of AD; however, trials thus far have been complicated by adverse effects or minimal improvement. This review will provide an update on several pharmacological nAChR agonists trialed and reasons that further investigation of nAChR agonists is merited.
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Affiliation(s)
| | | | - Marwan Noel Sabbagh
- Barrow Neurological Institute, Phoenix, AZ.,Cleveland Clinic Lou Ruvo Center for Brain Health, Las Vegas, NV
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27
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Laikowski MM, Reisdorfer F, Moura S. NAChR α4β2 Subtype and their Relation with Nicotine Addiction, Cognition, Depression and Hyperactivity Disorder. Curr Med Chem 2019; 26:3792-3811. [PMID: 29637850 DOI: 10.2174/0929867325666180410105135] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 12/27/2017] [Accepted: 04/05/2018] [Indexed: 01/07/2023]
Abstract
BACKGROUND Neuronal α4β2 nAChRs are receptors involved in the role of neurotransmitters regulation and release, and this ionic channel participates in biological process of memory, learning and attention. This work aims to review the structure and functioning of the α4β2 nAChR emphasizing its role in the treatment of associated diseases like nicotine addiction and underlying pathologies such as cognition, depression and attention-deficit hyperactivity disorder. METHODS The authors realized extensive bibliographic research using the descriptors "Nicotine Receptor α4β2" and "cognition", "depression", "attention-deficit hyperactivity disorder", besides cross-references of the selected articles and after analysis of references in the specific literature. RESULTS As results, it was that found 179 relevant articles presenting the main molecules with affinity to nAChR α4β2 related to the cited diseases. The α4β2 nAChR subtype is a remarkable therapeutic target since this is the most abundant receptor in the central nervous system. CONCLUSION In summary, this review presents perspectives on the pharmacology and therapeutic targeting of α4β2 nAChRs for the treatment of cognition and diseases like nicotine dependence, depression and attention-deficit hyperactivity disorder.
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Affiliation(s)
- Manuela M Laikowski
- Laboratory of Natural and Synthetics Products, University of Caxias do Sul, Caxias do Sul, Brazil
| | - Fávero Reisdorfer
- Laboratory of Drug Development and Quality Control, University Federal of Pampa, Brazil
| | - Sidnei Moura
- Laboratory of Natural and Synthetics Products, University of Caxias do Sul, Caxias do Sul, Brazil
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28
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Sun B, Wang Z. Syntheses and Biological Properties of Pyrido[3,4‐
b
]homotropane (PHT) and its Analogues with Bridged Aza‐[
n
.2.1] Skeletons. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900348] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bingxia Sun
- School of Life SciencesShandong University of Technology 266# West Xincun Road Zibo, Shandong China
| | - Zhongwen Wang
- State Key Laboratory and Institute of Elemento-Organic ChemistryCollege of ChemistryNankai University Weijin Road 94# Tianjin 300071 China
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29
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Silva AR, Grosso C, Delerue-Matos C, Rocha JM. Comprehensive review on the interaction between natural compounds and brain receptors: Benefits and toxicity. Eur J Med Chem 2019; 174:87-115. [PMID: 31029947 DOI: 10.1016/j.ejmech.2019.04.028] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 04/10/2019] [Accepted: 04/11/2019] [Indexed: 02/06/2023]
Abstract
Given their therapeutic activity, natural products have been used in traditional medicines throughout the centuries. The growing interest of the scientific community in phytopharmaceuticals, and more recently in marine products, has resulted in a significant number of research efforts towards understanding their effect in the treatment of neurodegenerative diseases, such as Alzheimer's (AD), Parkinson (PD) and Huntington (HD). Several studies have shown that many of the primary and secondary metabolites of plants, marine organisms and others, have high affinities for various brain receptors and may play a crucial role in the treatment of diseases affecting the central nervous system (CNS) in mammalians. Actually, such compounds may act on the brain receptors either by agonism, antagonism, allosteric modulation or other type of activity aimed at enhancing a certain effect. The current manuscript comprehensively reviews the state of the art on the interactions between natural compounds and brain receptors. This information is of foremost importance when it is intended to investigate and develop cutting-edge drugs, more effective and with alternative mechanisms of action to the conventional drugs presently used for the treatment of neurodegenerative diseases. Thus, we reviewed the effect of 173 natural products on neurotransmitter receptors, diabetes related receptors, neurotrophic factor related receptors, immune system related receptors, oxidative stress related receptors, transcription factors regulating gene expression related receptors and blood-brain barrier receptors.
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Affiliation(s)
- Ana R Silva
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology (DB), University of Minho (UM), Campus Gualtar, P-4710-057, Braga, Portugal
| | - Clara Grosso
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, P-4249-015, Porto, Portugal.
| | - Cristina Delerue-Matos
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Instituto Politécnico do Porto, Rua Dr. António Bernardino de Almeida, 431, P-4249-015, Porto, Portugal
| | - João M Rocha
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology (DB), University of Minho (UM), Campus Gualtar, P-4710-057, Braga, Portugal; REQUIMTE/LAQV, Grupo de investigação de Química Orgânica Aplicada (QUINOA), Laboratório de polifenóis alimentares, Departamento de Química e Bioquímica (DQB), Faculdade de Ciências da Universidade do Porto (FCUP), Rua do Campo Alegre, s/n, P-4169-007, Porto, Portugal
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30
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Dukat M, Jain A, German N, Ferrara-Pontoriero R, Huang Y, Ma Y, Schulte MK, Glennon RA. des-Formylflustrabromine (dFBr): A Structure-Activity Study on Its Ability To Potentiate the Action of Acetylcholine at α4β2 Nicotinic Acetylcholine Receptors. ACS Chem Neurosci 2018; 9:2984-2996. [PMID: 30028943 DOI: 10.1021/acschemneuro.8b00156] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The naturally occurring indole alkaloid des-formylflustrabromine (dFBr; 1) is one of the first agents shown to act as a selective positive allosteric modulator (PAM) at α4β2 nicotinic acetylcholine receptors (nAChRs). We previously deconstructed this agent to determine which of its structural features contribute to its actions and have identified an agent that might serve as the basis for a " working pharmacophore". Here, we elaborate the dFBr (1; EC50 = 0.2 μM) structure to identify how various structural modifications impact its actions. Electrophysiological studies with Xenopus laevis oocytes identified several compounds with dFBr-like potency and one, the 5-bromo analogue of 1 (i.e., 5-bromo dFBr; 25; EC50 = 0.4 μM), with more than twice the efficacy of 1 as a PAM at α4β2 nAChRs.
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Affiliation(s)
- Małgorzata Dukat
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia 23298-0540, United States
| | - Atul Jain
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia 23298-0540, United States
| | - Nadezhda German
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia 23298-0540, United States
| | - Rossana Ferrara-Pontoriero
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia 23298-0540, United States
| | - Yanzhou Huang
- Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy, University of the Sciences, 600 S 43rd Street, Philadelphia, Pennsylvania 19104-4495, United States
| | - Yilong Ma
- Institute of Arctic Biology, Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, Alaska 99775-7000, United States
| | - Marvin K. Schulte
- Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy, University of the Sciences, 600 S 43rd Street, Philadelphia, Pennsylvania 19104-4495, United States
| | - Richard A. Glennon
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia 23298-0540, United States
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31
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Bagdas D, AlSharari S, Roni MA, Campbell VC, Muldoon PP, Carroll FI, Damaj MI. Blockade of nicotinic acetylcholine receptor enhances the responsiveness to bupropion in the mouse forced swim test. Behav Brain Res 2018; 360:262-269. [PMID: 30552947 DOI: 10.1016/j.bbr.2018.12.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 11/28/2018] [Accepted: 12/11/2018] [Indexed: 12/24/2022]
Abstract
The objective of the present study is to investigate the role of α4, α5, α6 or β2 nAChR subunits in the antidepressant-like effect of bupropion. Adult male mice were treated with subcutaneous acute doses of bupropion (3 and 10 mg/kg) 30 min before the forced swim test (FST) in α4, α5, α6, or β2 nAChR subunit knockout (KO) and wild-type (WT) mice. In addition, the effects of β2* antagonist dihydro-β-erythroidine (DHβE, 3 mg/kg) on antidepressant-like effects of bupropion in C57BL/6 J mice were assessed. Our results showed that baseline immobility and climbing time did not differ between KO and corresponding WT mice except for β2 KO. Bupropion significantly decreased immobility time and increased climbing time in the α4, α6 and β2 nAChR KO mice in comparison to WT littermates, indicating that lack of these nAChR subunits enhanced antidepressant effects of bupropion. On the contrary, the α5 nAChR subunit deletion did not alter the FST behavior in the bupropion-treated mice. Not only in the transgenic mice, bupropion also showed antidepressant-like effects in the WT mice. In addition, DHβE pretreatment before bupropion administration resulted in decreased immobility time and increased climbing time. Taken together, the present study provides evidence on the involvement of α4*, α6*, and β2* (* indicates possible presence of other subunits) nAChRs in the antidepressant-like effects of bupropion in the FST.
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Affiliation(s)
- Deniz Bagdas
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Shakir AlSharari
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, VA, 23298, USA; Department of Pharmacology and Toxicology, King Saud University, Riyadh, Saudi Arabia
| | - Monzurul A Roni
- Department of Pharmaceutical Sciences, Hampton University School of Pharmacy, Hampton, VA, 23668, USA
| | - Vera C Campbell
- Department of Pharmaceutical Sciences, Hampton University School of Pharmacy, Hampton, VA, 23668, USA
| | - Pretal P Muldoon
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - F Ivy Carroll
- Center for Organic and Medicinal Chemistry, Research Triangle Institute, Research Triangle Park, NC 27709, USA
| | - M Imad Damaj
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, VA, 23298, USA.
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32
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Sun B, Ren J, Xing S, Wang Z. Synthesis of (−)-Pyrido[3,4-b]homotropane (PHT) and (±)-PHT via an Intramolecular Cross [3+2] Cycloaddition Strategy. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701438] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bingxia Sun
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry; Nankai University; Tianjin 300071 People's Republic of China
| | - Jun Ren
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry; Nankai University; Tianjin 300071 People's Republic of China
| | - Siyang Xing
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry; Tianjin Normal University; Tianjin 300387 People's Republic of China
| | - Zhongwen Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry; Nankai University; Tianjin 300071 People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering(Tianjin); Nankai University; Tianjin 300071 People's Republic of China
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33
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Designing selective modulators for the nicotinic receptor subtypes: challenges and opportunities. Future Med Chem 2018; 10:433-459. [PMID: 29451400 DOI: 10.4155/fmc-2017-0169] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Nicotinic receptors are membrane proteins involved in several physiological processes. They are considered suitable drug targets for various CNS disorders or conditions, as shown by the large number of compounds which have entered clinical trials. In recent years, nonconventional agonists have been discovered: positive allosteric modulators, allosteric agonists, site-specific agonists and silent desensitizers are compounds able to modulate the receptor interacting at sites different from the orthodox one, or to desensitize the receptor without prior opening. While these new findings can further complicate the pharmacology of these proteins and the design and optimization of ligands, they undoubtedly offer new opportunities to find drugs for the many therapeutic indications involving nicotinic receptors.
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34
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Ondachi PW, Castro AH, Sherman B, Luetje CW, Damaj MI, Mascarella SW, Navarro HA, Carroll FI. Synthesis, Nicotinic Acetylcholine Receptor Binding, and in Vitro and in Vivo Pharmacological Properties of 2'-Fluoro-(substituted thiophenyl)deschloroepibatidine Analogues. ACS Chem Neurosci 2017; 8:115-127. [PMID: 27726337 DOI: 10.1021/acschemneuro.6b00252] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The synthesis, nAChR in vitro and in vivo pharmacological properties of 2'-fluoro-3'-(substituted thiophenyl)deschloroepibatidine analogues (5a-f, 6a-d, and 7a-c) are presented herein. All had subnanomolar affinity at α4β2*-nAChRs. Contrary to lead structure epibatidine, a potent nAChR agonist, all were potent α4β2- and α3β4-AChR antagonists in an in vitro functional assay. In vivo, the compounds were also nAChR antagonists with various degrees of agonist activity. Compounds 5e, 5f, 6a, 6c, 6d, and 7c had no agonist effects in the tail-flick, hot-plate, hypothermia, or spontaneous activity tests, whereas 5a-d, 7a and 7b did not have agonist activity in the tail-flick and hot-plate tests but, like varenicline, were agonists in the hypothermia and spontaneous activity tests. Compound 6b had agonist activity in all four in vivo tests. All the compounds were antagonists of nicotine-induced antinociception in the tail-flick test, and all except 5c, 5d, 5f, and 6b were antagonists of nicotine-induced antinociception in the hot-plate test. Compound 7c, which had a Ki = 0.86 nM in the binding assay similar potency at α4β2/α3β4 with selectivity relative to α7 nAChRs, had an AD50 value of 0.001 μg/kg in the tail-flick test with no agonist activity in the in vitro or in vivo test had one of the more interesting profiles.
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Affiliation(s)
- Pauline W. Ondachi
- Research Triangle Institute, P.O. Box 12194, Research Triangle Park, North Carolina 27709, United States
| | - Ana H. Castro
- Department
of Molecular and Cellular Pharmacology, Miller School of Medicine, University of Miami, Miami, Florida 33101, United States
| | - Benjamin Sherman
- Department
of Molecular and Cellular Pharmacology, Miller School of Medicine, University of Miami, Miami, Florida 33101, United States
| | - Charles W. Luetje
- Department
of Molecular and Cellular Pharmacology, Miller School of Medicine, University of Miami, Miami, Florida 33101, United States
| | - M. Imad Damaj
- Department
of Pharmacology, Virginia Commonwealth University Medical Campus, P.O. Box 980615, Richmond, Virginia 23298-0613, United States
| | - S. Wayne Mascarella
- Research Triangle Institute, P.O. Box 12194, Research Triangle Park, North Carolina 27709, United States
| | - Hernán A. Navarro
- Research Triangle Institute, P.O. Box 12194, Research Triangle Park, North Carolina 27709, United States
| | - F. I. Carroll
- Research Triangle Institute, P.O. Box 12194, Research Triangle Park, North Carolina 27709, United States
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Bolchi C, Bavo F, Fumagalli L, Gotti C, Fasoli F, Moretti M, Pallavicini M. Novel 5-substituted 3-hydroxyphenyl and 3-nitrophenyl ethers of S-prolinol as α4β2-nicotinic acetylcholine receptor ligands. Bioorg Med Chem Lett 2016; 26:5613-5617. [PMID: 27818109 DOI: 10.1016/j.bmcl.2016.10.078] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 10/25/2016] [Accepted: 10/26/2016] [Indexed: 10/20/2022]
Abstract
A series of 3-nitrophenyl and 3-hydroxyphenyl ethers of (S)-N-methylprolinol bearing bulky and lipophilic substituents at phenyl C5 were tested for affinity at α4β2 and α3β4 nAChRs. The two phenyl ethers 5-substituted with 6-hydroxy-1-hexynyl showed high α4β2 affinity and significantly increased α4β2/α3β4 selectivity compared to the respective unsubstituted parent compounds. Within the two series of novel phenyl ethers, we observed parallel shifts in affinity and, furthermore, the increase in α4β2/α3β4 selectivity resulting from the hydroxyalkynyl substitution parallels that reported for the same modification at the 3-pyridyl ether of (S)-N-methylprolinol (A-84543), a well-known potent α4β2 agonist. On the basis of these results, our nitrophenyl and hydroxyphenyl prolinol ethers can be considered bioisosteres of the pyridyl ether A-84543 and lead compounds candidable to analogous optimization processes.
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Affiliation(s)
- Cristiano Bolchi
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Mangiagalli 25, I-20133 Milano, Italy
| | - Francesco Bavo
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Mangiagalli 25, I-20133 Milano, Italy
| | - Laura Fumagalli
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Mangiagalli 25, I-20133 Milano, Italy
| | - Cecilia Gotti
- CNR, Istituto di Neuroscienze, Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, via Vanvitelli 32, I-20129 Milano, Italy
| | - Francesca Fasoli
- CNR, Istituto di Neuroscienze, Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, via Vanvitelli 32, I-20129 Milano, Italy
| | - Milena Moretti
- CNR, Istituto di Neuroscienze, Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, via Vanvitelli 32, I-20129 Milano, Italy
| | - Marco Pallavicini
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Mangiagalli 25, I-20133 Milano, Italy.
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Bolchi C, Bavo F, Gotti C, Fumagalli L, Fasoli F, Binda M, Mucchietto V, Sciaccaluga M, Plutino S, Fucile S, Pallavicini M. From pyrrolidinyl-benzodioxane to pyrrolidinyl-pyridodioxanes, or from unselective antagonism to selective partial agonism at α4β2 nicotinic acetylcholine receptor. Eur J Med Chem 2016; 125:1132-1144. [PMID: 27810599 DOI: 10.1016/j.ejmech.2016.10.048] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 10/20/2016] [Accepted: 10/21/2016] [Indexed: 12/14/2022]
Abstract
Each of the four aromatic -CH= of (S,R)-2-pyrrolidinyl-1,4-benzodioxane [(S,R)-6] and of its epimer at the dioxane stereocenter (S,S)-6, previously reported as α4β2 nAChR ligands, was replaced with nitrogen. The resulting four diastereoisomeric pairs of pyrrolidinyl-pyridodioxanes were studied for the nicotinic affinity and activity at α4β2, α3β4 and α7 nAChR subtypes and compared to their common carbaisostere. It turned out that such isosteric substitutions are highly detrimental, but with the important exception of the S,R stereoisomer of the pyrrolidinyl-pyridodioxane with the pyridine nitrogen adjacent to the dioxane and seven atoms distant from the pyrrolidine nitrogen. Indeed, this stereo/regioisomer not only maintained the α4β2 affinity of [(S,R)-6], but also greatly improved in selectivity over the α3β4 and α7 subtypes and, most importantly, exhibited a highly selective α4β2 partial agonism. The finding that [(S,R)-6] is, instead, an unselective α4β2 antagonist indicates that the benzodioxane substructure confers affinity for the α4β2 nAChR binding site, but activation of this receptor subtype needs benzodioxane functionalization under strict steric requirements, such as the previously reported 7-OH substitution or the present isosteric modification.
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Affiliation(s)
- Cristiano Bolchi
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Mangiagalli 25, I-20133, Milano, Italy
| | - Francesco Bavo
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Mangiagalli 25, I-20133, Milano, Italy
| | - Cecilia Gotti
- CNR, Istituto di Neuroscienze, and Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, via Vanvitelli 32, Milano, I-20129, Italy
| | - Laura Fumagalli
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Mangiagalli 25, I-20133, Milano, Italy
| | - Francesca Fasoli
- CNR, Istituto di Neuroscienze, and Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, via Vanvitelli 32, Milano, I-20129, Italy
| | - Matteo Binda
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Mangiagalli 25, I-20133, Milano, Italy
| | - Vanessa Mucchietto
- CNR, Istituto di Neuroscienze, and Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, via Vanvitelli 32, Milano, I-20129, Italy
| | - Miriam Sciaccaluga
- I.R.C.C.S. Neuromed, Istituto Neurologico Mediterraneo, via Atinese 18, I-86077, Pozzilli (Isernia), Italy
| | - Simona Plutino
- Dipartimento di Fisiologia e Farmacologia, Università di Roma La Sapienza, Piazzale Moro 5, 00185 Roma, Italy
| | - Sergio Fucile
- I.R.C.C.S. Neuromed, Istituto Neurologico Mediterraneo, via Atinese 18, I-86077, Pozzilli (Isernia), Italy; Dipartimento di Fisiologia e Farmacologia, Università di Roma La Sapienza, Piazzale Moro 5, 00185 Roma, Italy
| | - Marco Pallavicini
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, via Mangiagalli 25, I-20133, Milano, Italy.
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Onajole OK, Vallerini GP, Eaton JB, Lukas RJ, Brunner D, Caldarone BJ, Kozikowski AP. Synthesis and Behavioral Studies of Chiral Cyclopropanes as Selective α4β2-Nicotinic Acetylcholine Receptor Partial Agonists Exhibiting an Antidepressant Profile. Part III. ACS Chem Neurosci 2016; 7:811-22. [PMID: 27035276 DOI: 10.1021/acschemneuro.6b00050] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
We report the synthesis and biological characterization of novel derivatives of 3-[(1-methyl-2(S)-pyrrolidinyl)methoxy]-5-cyclopropylpyridine (4a-f and 5) as potent and highly selective α4β2-nicotinic acetylcholine receptor (nAChR) full or partial agonists. A systematic structure-activity study was carried out on the previously described compound 3b, particularly concerning its (2-methoxyethyl)cyclopropyl side-chain, in an effort to improve its metabolic stability while maintaining receptor selectivity. Compound 4d exhibited very similar subnanomolar binding affinity for α4β2- and α4β2*-nAChRs compared to 3b, and it showed excellent potency in activating high-sensitivity (HS) α4β2-nAChRs with an EC50 value of 8.2 nM. Testing of 4d in the SmartCube assay revealed that the compound has a combined antidepressant plus antipsychotic signature. In the forced swim test at a dose of 30 mg/kg given intraperitoneally, 4d was found to be as efficacious as sertraline, thus providing evidence of the potential use of the compound as an antidepressant. Additional promise for use of 4d in humans comes from pharmacokinetic studies in mice indicating brain penetration, and additional assays show compound stability in the presence of human microsomes and hepatocytes. Thus, 4d has a very favorable preclinical drug profile.
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Affiliation(s)
- Oluseye K. Onajole
- Drug
Discovery Program, Department of Medicinal Chemistry and Pharmacognosy,
College of Pharmacy, University of Illinois at Chicago, 833 South
Wood Street, Chicago, Illinois 60612, United States
- Department
of Biological, Chemical and Physical Sciences, Roosevelt University, 425 S. Wabash Avenue, Chicago, Illinois 60605, United States
| | - Gian Paolo Vallerini
- Drug
Discovery Program, Department of Medicinal Chemistry and Pharmacognosy,
College of Pharmacy, University of Illinois at Chicago, 833 South
Wood Street, Chicago, Illinois 60612, United States
| | - J. Brek Eaton
- Division
of Neurobiology, Barrow Neurological Institute, 350 West Thomas Road, Phoenix, Arizona 85013, United States
| | - Ronald J. Lukas
- Division
of Neurobiology, Barrow Neurological Institute, 350 West Thomas Road, Phoenix, Arizona 85013, United States
| | - Dani Brunner
- PsychoGenics, Inc., 765 Old Saw Mill
River Road, Tarrytown, New
York 10591, United States
| | - Barbara J. Caldarone
- Harvard
NeuroDiscovery Center and Department of Neurology, Brigham and Women’s Hospital, 77 Avenue Louis Pasteur, Boston, Massachusetts 02115, United States
| | - Alan P. Kozikowski
- Drug
Discovery Program, Department of Medicinal Chemistry and Pharmacognosy,
College of Pharmacy, University of Illinois at Chicago, 833 South
Wood Street, Chicago, Illinois 60612, United States
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Bolchi C, Valoti E, Gotti C, Fasoli F, Ruggeri P, Fumagalli L, Binda M, Mucchietto V, Sciaccaluga M, Budriesi R, Fucile S, Pallavicini M. Chemistry and Pharmacology of a Series of Unichiral Analogues of 2-(2-Pyrrolidinyl)-1,4-benzodioxane, Prolinol Phenyl Ether, and Prolinol 3-Pyridyl Ether Designed as α4β2-Nicotinic Acetylcholine Receptor Agonists. J Med Chem 2015. [PMID: 26225816 DOI: 10.1021/acs.jmedchem.5b00904] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Some unichiral analogues of 2R,2'S-2-(1'-methyl-2'-pyrrolidinyl)-7-hydroxy-1,4-benzodioxane, a potent and selective α4β2-nAChR partial agonist, were designed by opening dioxane and replacing hydroxyl carbon with nitrogen. The resulting 3-pyridyl and m-hydroxyphenyl ethers have high α4β2 affinity and good subtype selectivity, which get lost if OH is removed from phenyl or the position of pyridine nitrogen is changed. High α4β2 affinity and selectivity are also attained by meta hydroxylating the 3-pyridyl and the phenyl ethers of (S)-N-methylprolinol and the phenyl ether of (S)-2-azetidinemethanol, known α4β2 agonists, although the interaction mode of the aryloxymethylene substructure cannot be assimilated to that of benzodioxane. Indeed, the α4β2 and α3β4 functional tests well differentiate behaviors that the binding tests homologize: both the 3-hydroxyphenyl and the 5-hydroxy-3-pyridyl ether of N-methylprolinol are α4β2 full agonists, but only the latter is highly α4β2/α3β4 selective, while potent and selective partial α4β2 agonism characterizes the hydroxybenzodioxane derivative and its two opened semirigid analogues.
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Affiliation(s)
- Cristiano Bolchi
- Dipartimento di Scienze Farmaceutiche "Pietro Pratesi", Università degli Studi di Milano , Via Mangiagalli 25, I-20133, Milano, Italy
| | - Ermanno Valoti
- Dipartimento di Scienze Farmaceutiche "Pietro Pratesi", Università degli Studi di Milano , Via Mangiagalli 25, I-20133, Milano, Italy
| | - Cecilia Gotti
- CNR, Istituto di Neuroscienze, and Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, Via Vanvitelli 32, Milano, I-20129, Italy
| | - Francesca Fasoli
- CNR, Istituto di Neuroscienze, and Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, Via Vanvitelli 32, Milano, I-20129, Italy
| | - Paola Ruggeri
- Dipartimento di Scienze Farmaceutiche "Pietro Pratesi", Università degli Studi di Milano , Via Mangiagalli 25, I-20133, Milano, Italy
| | - Laura Fumagalli
- Dipartimento di Scienze Farmaceutiche "Pietro Pratesi", Università degli Studi di Milano , Via Mangiagalli 25, I-20133, Milano, Italy
| | - Matteo Binda
- Dipartimento di Scienze Farmaceutiche "Pietro Pratesi", Università degli Studi di Milano , Via Mangiagalli 25, I-20133, Milano, Italy
| | - Vanessa Mucchietto
- CNR, Istituto di Neuroscienze, and Dipartimento di Biotecnologie Mediche e Medicina Traslazionale, Università degli Studi di Milano, Via Vanvitelli 32, Milano, I-20129, Italy
| | - Miriam Sciaccaluga
- I.R.C.C.S. Neuromed, Istituto Neurologico Mediterraneo, Via Atinese 18, I-86077, Pozzilli, Isernia, Italy
| | - Roberta Budriesi
- Dipartimento di Farmacia e Biotecnologie, Alma Mater Studiorum, Università di Bologna , Via Belmeloro 6, I-40126, Bologna, Italy
| | - Sergio Fucile
- I.R.C.C.S. Neuromed, Istituto Neurologico Mediterraneo, Via Atinese 18, I-86077, Pozzilli, Isernia, Italy.,Dipartimento di Fisiologia e Farmacologia, Università di Roma La Sapienza , Piazzale Moro 5, 00185 Roma, Italy
| | - Marco Pallavicini
- Dipartimento di Scienze Farmaceutiche "Pietro Pratesi", Università degli Studi di Milano , Via Mangiagalli 25, I-20133, Milano, Italy
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Ouyang J, Yan R, Mi X, Hong R. Enantioselective Total Synthesis of (−)-Hosieine A. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/anie.201505251] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Csala I, Egervari L, Dome P, Faludi G, Dome B, Lazary J. The possible role of maternal bonding style and CHRNB2 gene polymorphisms in nicotine dependence and related depressive phenotype. Prog Neuropsychopharmacol Biol Psychiatry 2015; 59:84-90. [PMID: 25640319 DOI: 10.1016/j.pnpbp.2015.01.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Revised: 01/21/2015] [Accepted: 01/21/2015] [Indexed: 11/25/2022]
Abstract
OBJECTIVES Neuronal nicotinic acetylcholinergic receptors (nAChR) and especially α4β2 nAChRs are the major targets for cessation medications and also for some promising antidepressant agents. Furthermore, depressive symptoms pose multifacet difficulties during cessation therapy. However, gene encoding for the β2 subunit of nAChRs has been poorly investigated in association with depression. Since both nicotine dependence (ND) and depressive phenotype are complex disorders, we investigated the effects of a significant early life experience, maternal bonding style (MB) and CHRNB2 gene SNPs on smoking-related depression. METHODS We recruited two hundred and thirty-two treatment-seeking smokers in our study. Phenotypic variants were evaluated using the Fagerstrom Test for Nicotine Dependence (FTND), the Zung Self-Rating Depression Scale (ZSDS) and the Parental Bonding Instrument (PBI). Besides the total score (TS) of ZSDS, impulsivity (ZSDS-I) and suicidal ideation (ZSDS-S) were distinguished as phenotypic variable. DNAs were extracted from buccal mucosa samples and one SNP in promoter and two SNPs in 3' UTR of CHRNB2 gene were genotyped. GLM and ANOVA tests were performed for genotype associations and interaction analyses. RESULTS Maternal bonding had a significant impact on depressive phenotypes. Low care, high protection and affectionless control (ALC) were associated with ZSDS-TS and all subphenotypes of ZSDS. One SNP, the rs2072660 in 3' UTR, had a significant effect on the FTND score (p=0.010). Direct association of CHRNB2 variants and depressive phenotypes were not significant. However, in interaction with ALC, rs2072660 was significantly associated with ZSDS-S (p=0.005). MB had no significant effect on smoking-related phenotype. CONCLUSIONS Our results highlight the important role of 3' UTR in the CHRNB2 gene in the shared molecular background of ND and depressive phenotype. Parental bonding style can be suggested as a significant environmental factor in further GxE studies of depression. The presented significant GxE interaction on smoking-related suicidal subphenotype may help establish further investigations on development of more effective and safer smoking cessation and antidepressant agents.
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Affiliation(s)
- Iren Csala
- Department of Clinical and Theoretical Mental Health, Semmelweis University, Budapest, Hungary; Institute of Behavioral Sciences, Semmelweis University, Budapest, Hungary
| | - Luca Egervari
- Department of Clinical and Theoretical Mental Health, Semmelweis University, Budapest, Hungary
| | - Peter Dome
- Department of Clinical and Theoretical Mental Health, Semmelweis University, Budapest, Hungary; National Institute of Psychiatry and Addiction, Budapest, Hungary
| | - Gabor Faludi
- Department of Clinical and Theoretical Mental Health, Semmelweis University, Budapest, Hungary
| | - Balazs Dome
- Department of Tumor Biology, National Koranyi Institute of Pulmonology, Budapest, Hungary; Department of Thoracic Surgery, Medical University of Vienna, Austria; Department of Thoracic Surgery, National Institute of Oncology and Semmelweis University, Budapest, Hungary; Department of Biomedical Imaging and Image-guided Therapy, Division of Molecular and Gender Imaging, Medical University of Vienna, Austria
| | - Judit Lazary
- Department of Clinical and Theoretical Mental Health, Semmelweis University, Budapest, Hungary.
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Smucny J, Olincy A, Eichman LC, Tregellas JR. Neuronal effects of nicotine during auditory selective attention. Psychopharmacology (Berl) 2015; 232:2017-28. [PMID: 25491929 PMCID: PMC4426219 DOI: 10.1007/s00213-014-3832-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 11/26/2014] [Indexed: 11/30/2022]
Abstract
RATIONALE Although the attention-enhancing effects of nicotine have been behaviorally and neurophysiologically well-documented, its localized functional effects during selective attention are poorly understood. OBJECTIVES In this study, we examined the neuronal effects of nicotine during auditory selective attention in healthy human nonsmokers. We hypothesized to observe significant effects of nicotine in attention-associated brain areas, driven by nicotine-induced increases in activity as a function of increasing task demands. METHODS A single-blind, prospective, randomized crossover design was used to examine neuronal response associated with a go/no-go task after 7 mg nicotine or placebo patch administration in 20 individuals who underwent functional magnetic resonance imaging at 3T. The task design included two levels of difficulty (ordered vs. random stimuli) and two levels of auditory distraction (silence vs. noise). RESULTS Significant treatment × difficulty × distraction interaction effects on neuronal response were observed in the hippocampus, ventral parietal cortex, and anterior cingulate. In contrast to our hypothesis, U and inverted U-shaped dependencies were observed between the effects of nicotine on response and task demands, depending on the brain area. CONCLUSIONS These results suggest that nicotine may differentially affect neuronal response depending on task conditions. These results have important theoretical implications for understanding how cholinergic tone may influence the neurobiology of selective attention.
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Affiliation(s)
- Jason Smucny
- Research Service, Denver VA Medical Center, Denver, CO, USA,
| | - Ann Olincy
- Research Service, Denver VA Medical Center, Denver, CO USA,Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora CO USA
| | - Lindsay C. Eichman
- Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora CO USA
| | - Jason R. Tregellas
- Research Service, Denver VA Medical Center, Denver, CO USA,Department of Psychiatry, University of Colorado Anschutz Medical Campus, Aurora CO USA,Neuroscience Program, University of Colorado Anschutz Medical Campus, Aurora CO USA
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Biomolecular recognition of antagonists by α7 nicotinic acetylcholine receptor: Antagonistic mechanism and structure-activity relationships studies. Eur J Pharm Sci 2015; 76:119-32. [PMID: 25963024 DOI: 10.1016/j.ejps.2015.05.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 04/24/2015] [Accepted: 05/06/2015] [Indexed: 12/20/2022]
Abstract
As the key constituent of ligand-gated ion channels in the central nervous system, nicotinic acetylcholine receptors (nAChRs) and neurodegenerative diseases are strongly coupled in the human species. In recently years the developments of selective agonists by using nAChRs as the drug target have made a large progress, but the studies of selective antagonists are severely lacked. Currently these antagonists rest mainly on the extraction of partly natural products from some animals and plants; however, the production of these crude substances is quite restricted, and artificial synthesis of nAChR antagonists is still one of the completely new research fields. In the context of this manuscript, our primary objective was to comprehensively analyze the recognition patterns and the critical interaction descriptors between target α7 nAChR and a series of the novel compounds with potentially antagonistic activity by means of virtual screening, molecular docking and molecular dynamics simulation, and meanwhile these recognition reactions were also compared with the biointeraction of α7 nAChR with a commercially natural antagonist - methyllycaconitine. The results suggested clearly that there are relatively obvious differences of molecular structures between synthetic antagonists and methyllycaconitine, while the two systems have similar recognition modes on the whole. The interaction energy and the crucially noncovalent forces of the α7 nAChR-antagonists are ascertained according to the method of Molecular Mechanics/Generalized Born Surface Area. Several amino acid residues, such as B/Tyr-93, B/Lys-143, B/Trp-147, B/Tyr-188, B/Tyr-195, A/Trp-55 and A/Leu-118 played a major role in the α7 nAChR-antagonist recognition processes, in particular, residues B/Tyr-93, B/Trp-147 and B/Tyr-188 are the most important. These outcomes tally satisfactorily with the discussions of amino acid mutations. Based on the explorations of three-dimensional quantitative structure-activity relationships, the structure-antagonistic activity relationships of antagonists and the characteristics of α7 nAChR-ligand recognitions were received a reasonable summary as well. These attempts emerged herein would not only provide helpful guidance for the design of α7 nAChR antagonists, but shed new light on the subsequent researches in antagonistic mechanism.
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