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Mayeka JG, Nyandoro SS, Munissi JJE. Genus Monanthotaxis: a review on distribution, ethnomedicinal uses and phytochemistry. Nat Prod Res 2024:1-17. [PMID: 38259197 DOI: 10.1080/14786419.2024.2301743] [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: 03/20/2023] [Accepted: 12/30/2023] [Indexed: 01/24/2024]
Abstract
This article reviews the geographical distribution, ethnomedicinal applications, and phytochemistry of the genus Monanthotaxis Baill, tribe Uvariae of the family Annonaceae. The reviewed works of literature were collected from various electronic databases including Google Scholar, PubMed, Science Direct, The International Plant Names Index (IPNI), and Research Gate. During this review, ninety-eight species of the genus Monanthotaxis were found to be widely distributed in tropical Africa. Some of those species are used in folkloric medicine by various communities to manage diseases and disease conditions such as fever, vomiting, headache, stomach-ache, malaria, helminthiasis, and hysteria. In the past 44 years (1979 to 2023), one hundred and nineteen secondary metabolites with different biomedical potentials have been reported from this genus. The reported compounds are categorised into flavonoids, alkaloids, terpenoids, polyoxygenated cyclohexane, and cyclohexene derivatives, benzyl derivatives, cinnamic acid derivatives, and stilbenoids. Most of the reported compounds showed an array of bioactivities corroborating the use of some members of the genus in folkloric medicine.
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Affiliation(s)
- James G Mayeka
- Chemistry Department, University of Dar es Salaam, Dar es Salaam, Tanzania
- Department of Educational Curriculum and Instructions, School of Education, Sokoine University of Agriculture, Morogoro, Tanzania
| | - Stephen S Nyandoro
- Chemistry Department, University of Dar es Salaam, Dar es Salaam, Tanzania
| | - Joan J E Munissi
- Chemistry Department, University of Dar es Salaam, Dar es Salaam, Tanzania
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2
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Namballa HK, Decker AM, Dorogan M, Gudipally A, Goclon J, Harding WW. Fluoroalkoxylated C-3 and C-9 (S)-12-bromostepholidine analogues with D1R antagonist activity. Bioorg Chem 2023; 141:106862. [PMID: 37722267 PMCID: PMC10872833 DOI: 10.1016/j.bioorg.2023.106862] [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: 07/18/2023] [Revised: 09/10/2023] [Accepted: 09/11/2023] [Indexed: 09/20/2023]
Abstract
To illuminate the tolerance of fluoroalkoxylated groups at the C-3 and C-9 positions of tetrahydroprotoberberines (THPBs) on D1R activity, C-3 and C-9 fluoroalkoxylated analogues of (S)-12-bromostepholidine were prepared and evaluated. All compounds examined were D1R antagonists as measured by a cAMP assay. Our structure-activity studies herein indicate that the C-3 position tolerates a 1,1-difluoroethoxy substituent for D1R antagonist activity. Compound 13a was the most potent cAMP-based D1R antagonist identified and was also found to antagonize β-arrestin translocation in a TANGO assay. Affinity assessments at other dopamine receptors revealed that 13a is selective for D1R and unlike other naturally-occurring THPBs such as (S)-stepholidine, lacks D2R affinity. In preliminary biopharmaceutical assays, excellent BBB permeation was observed for 13a. Further pharmacological studies are warranted on (S)-stepholidine congeners to harvest their potential as a source of novel, druggable D1R-targeted agents.
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Affiliation(s)
- Hari K Namballa
- Department of Chemistry, Hunter College, City University of New York, 695 Park Avenue, NY 10065, United States
| | - Ann M Decker
- Center for Drug Discovery, RTI International, Research Triangle Park, NC 27709, United States
| | - Michael Dorogan
- Department of Chemistry, Hunter College, City University of New York, 695 Park Avenue, NY 10065, United States
| | - Ashok Gudipally
- Department of Chemistry, Hunter College, City University of New York, 695 Park Avenue, NY 10065, United States; Program in Chemistry, CUNY Graduate Center 365 5th Avenue, New York, NY 10016, United States
| | - Jakub Goclon
- Department of Chemistry, Hunter College, City University of New York, 695 Park Avenue, NY 10065, United States
| | - Wayne W Harding
- Department of Chemistry, Hunter College, City University of New York, 695 Park Avenue, NY 10065, United States; Program in Chemistry, CUNY Graduate Center 365 5th Avenue, New York, NY 10016, United States; Program in Biochemistry, CUNY Graduate Center 365 5th Avenue, New York, NY 10016, United States.
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Krogmeier TJ, Pappas ES, Reardon KA, Rivera MR, Head-Marsden K, Parsons BF, Schlimgen AW. Characterizing the origin band spectrum of isoquinoline with resonance enhanced multiphoton ionization and electronic structure calculations. J Chem Phys 2023; 159:134305. [PMID: 37791625 DOI: 10.1063/5.0168421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 09/10/2023] [Indexed: 10/05/2023] Open
Abstract
We report the experimental resonance enhanced multiphoton ionization spectrum of isoquinoline between 315 and 310 nm, along with correlated electronic structure calculations on the ground and excited states of this species. This spectral region spans the origin transitions to a π-π* excited state, which previous work has suggested to be vibronically coupled with a lower lying singlet n-π* state. Our computational results corroborate previous density functional theory calculations that predict the vertical excitation energy for the n-π* state to be higher than the π-π* state; however, we find an increase in the C-N-C angle brings the n-π* state below the energy of the π-π* state. The calculations find two out-of-plane vibrational modes of the n-π* state, which may be brought into near resonance with the π-π* state as the C-N-C bond angle increases. Therefore, the C-N-C bond angle may be important in activating vibronic coupling between the states. We fit the experimental rotational contour with a genetic algorithm to determine the excited state rotational constants and orientation of the transition dipole moment. The fits show a mostly in-plane polarized transition, and the projection of the transition dipole moment in the a-b plane is about 84° away from the a axis. These results are consistent with the prediction of our electronic structure calculations for the transition dipole moment of the π-π* excited state.
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Affiliation(s)
- Timothy J Krogmeier
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri 61630, USA
| | - Emerson S Pappas
- Department of Chemistry and Biochemistry, Creighton University, Omaha, Nebraska 68178, USA
| | - Kylie A Reardon
- Department of Chemistry and Biochemistry, Creighton University, Omaha, Nebraska 68178, USA
| | - Marcos R Rivera
- Department of Chemistry and Biochemistry, Creighton University, Omaha, Nebraska 68178, USA
| | - Kade Head-Marsden
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri 61630, USA
| | - Bradley F Parsons
- Department of Chemistry and Biochemistry, Creighton University, Omaha, Nebraska 68178, USA
| | - Anthony W Schlimgen
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri 61630, USA
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Azamatov AA, Zhurakulov SN, Vinogradova VI, Tursunkhodzhaeva F, Khinkar RM, Malatani RT, Aldurdunji MM, Tiezzi A, Mamadalieva NZ. Evaluation of the Local Anesthetic Activity, Acute Toxicity, and Structure-Toxicity Relationship in Series of Synthesized 1-Aryltetrahydroisoquinoline Alkaloid Derivatives In Vivo and In Silico. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020477. [PMID: 36677539 PMCID: PMC9864514 DOI: 10.3390/molecules28020477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/23/2022] [Accepted: 12/29/2022] [Indexed: 01/06/2023]
Abstract
Isoquinoline alkaloids constitute one of the most common classes of alkaloids that have shown a pronounced role in curing various diseases. Finding ways to reduce the toxicity of these molecules and to increase their therapeutic margin is an urgent matter. Here, a one-step method for the synthesis of a series of 1-aryl-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinolines was performed in 85-98% yield by the Pictet-Spengler reaction. This was accomplished using the reaction between 3,4-dimethoxyphenylethylamine and substituted benzaldehydes boiling in trifluoroacetic acid. Furthermore, 1-(3'-amino-, 4'-aminophenyl)-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinolines were obtained in 94% and 97% yield by reduction in 1-(3'-nitro-, 4'-nitrophenyl)-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinolines with SnCl2 × 2H2O. The structures of the substances obtained were confirmed by infrared (IR) and nuclear magnetic resonance (1H and 13C NMR) spectra. ADMET/TOPKAT in silico study concluded that the synthesized compounds exhibited acceptable pharmacodynamic and pharmacokinetic properties without carcinogenic or mutagenic potential but with variable hepatotoxicity. The acute toxicity and structure-toxicity relationship (STR) in the series of 20 derivatives of 1-aryl-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinolines (3a-r, 4a, b) was studied via determination of acute toxicity and resorptive action in white mice employing intragastric step-by-step administration. The first compound, 1-phenyl-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline hydrochloride (3a), showed the highest toxicity with LD50 of 280 mg/kg in contrast to 1-(3'-bromo -4'-hydroxyphenyl)-6,7-methylenedioxy-1,2,3,4-tetrahydroisoquinoline hydrochloride (3e) which proved to be the safest of the compounds studied. Its toxicity was 13.75 times lower than that of the parent compound 3a. All compounds investigated showed high local anesthetic activity on rabbit eyes in the concentrations studied. Only 3r, 3n, and 4a caused eye irritation and redness. All investigated derivatives (except 4b) in 1% concentration were more active than lidocaine, providing longer duration of complete anesthesia. Therefore, based on the obtained results of in silico tests, local anesthesia, and acute toxicity, a conclusion can be drawn that the experimental compounds need further extensive future investigations and possible modifications so that they can act as promising drug candidates.
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Affiliation(s)
- Azizbek A. Azamatov
- Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Mirzo Ulugbek Str. 77, Tashkent 100170, Uzbekistan
| | - Sherzod N. Zhurakulov
- Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Mirzo Ulugbek Str. 77, Tashkent 100170, Uzbekistan
- Department of Organic Chemistry, Faculty of Chemistry, National University of Uzbekistan Named after Mirzo Ulugbek, University Str. 4, Tashkent 100174, Uzbekistan
| | - Valentina I. Vinogradova
- Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Mirzo Ulugbek Str. 77, Tashkent 100170, Uzbekistan
| | - Firuza Tursunkhodzhaeva
- Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Mirzo Ulugbek Str. 77, Tashkent 100170, Uzbekistan
| | - Roaa M. Khinkar
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Rania T. Malatani
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohammed M. Aldurdunji
- Department of Clinical Pharmacy, College of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Antonio Tiezzi
- Department for the Innovation in Biological, Agro-Food and Forestal Systems, Tuscia University, 01100 Viterbo, Italy
| | - Nilufar Z. Mamadalieva
- Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Mirzo Ulugbek Str. 77, Tashkent 100170, Uzbekistan
- Correspondence:
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Jiang W, Tang M, Yang L, Zhao X, Gao J, Jiao Y, Li T, Tie C, Gao T, Han Y, Jiang JD. Analgesic Alkaloids Derived From Traditional Chinese Medicine in Pain Management. Front Pharmacol 2022; 13:851508. [PMID: 35620295 PMCID: PMC9127080 DOI: 10.3389/fphar.2022.851508] [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: 01/10/2022] [Accepted: 04/25/2022] [Indexed: 11/13/2022] Open
Abstract
Chronic pain is one of the most prevalent health problems. The establishment of chronic pain is complex. Current medication for chronic pain mainly dependent on anticonvulsants, tricyclic antidepressants and opioidergic drugs. However, they have limited therapeutic efficacy, and some even with severe side effects. We turned our interest into alkaloids separated from traditional Chinese medicine (TCM), that usually act on multiple drug targets. In this article, we introduced the best-studied analgesic alkaloids derived from TCM, including tetrahydropalmatine, aloperine, oxysophocarpine, matrine, sinomenine, ligustrazine, evodiamine, brucine, tetrandrine, Stopholidine, and lappaconitine, focusing on their mechanisms and potential clinical applications. To better describe the mechanism of these alkaloids, we adopted the concept of drug-cloud (dCloud) theory. dCloud illustrated the full therapeutic spectrum of multitarget analgesics with two dimensions, which are “direct efficacy”, including inhibition of ion channels, activating γ-Aminobutyric Acid/opioid receptors, to suppress pain signal directly; and “background efficacy”, including reducing neuronal inflammation/oxidative stress, inhibition of glial cell activation, restoring the balance between excitatory and inhibitory neurotransmission, to cure the root causes of chronic pain. Empirical evidence showed drug combination is beneficial to 30–50% chronic pain patients. To promote the discovery of effective analgesic combinations, we introduced an ancient Chinese therapeutic regimen that combines herbal drugs with “Jun”, “Chen”, “Zuo”, and “Shi” properties. In dCloud, “Jun” drug acts directly on the major symptom of the disease; “Chen” drug generates major background effects; “Zuo” drug has salutary and supportive functions; and “Shi” drug facilitates drug delivery to the targeted tissue. Subsequently, using this concept, we interpreted the therapeutic effect of established analgesic compositions containing TCM derived analgesic alkaloids, which may contribute to the establishment of an alternative drug discovery model.
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Affiliation(s)
- Wei Jiang
- Zhejiang Zhenyuan Pharmaceutical Co., Ltd., Shaoxing, China
| | - Mingze Tang
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, China
| | - Limin Yang
- Zhejiang Zhenyuan Pharmaceutical Co., Ltd., Shaoxing, China
| | - Xu Zhao
- First Clinical Division, Peking University Hospital of Stomatology, Beijing, China
| | - Jun Gao
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medicine Sciences & Peking Union Medical College, Beijing, China
| | - Yue Jiao
- Beijing Key Laboratory of Traditional Chinese Medicine Basic Research on Prevention and Treatment of Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
| | - Tao Li
- Beijing Key Laboratory of Traditional Chinese Medicine Basic Research on Prevention and Treatment of Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
| | - Cai Tie
- State Key Laboratory of Coal Resources and Safety Mining, China University of Mining and Technology, Beijing, China.,School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing, China
| | - Tianle Gao
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, China.,Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, Chinese Academy of Medical Sciences, Beijing, China
| | - Yanxing Han
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, China
| | - Jian-Dong Jiang
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing, China.,Research Unit of Digestive Tract Microecosystem Pharmacology and Toxicology, Chinese Academy of Medical Sciences, Beijing, China
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Huang YB, Ma ZG, Zheng C, Ma XKK, Taylor DH, Gao M, Lukas RJ, Wu J. Levo-tetrahydropalmatine inhibits α4β2 nicotinic receptor response to nicotine in cultured SH-EP1 cells. Acta Pharmacol Sin 2022; 43:889-896. [PMID: 34253876 PMCID: PMC8975845 DOI: 10.1038/s41401-021-00709-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 05/30/2021] [Indexed: 02/05/2023] Open
Abstract
Nicotine, a major component of tobacco, is highly addictive and acts on nicotinic acetylcholine receptors (nAChRs) to stimulate reward-associated circuits in the brain. It is well known that nAChRs play critical roles in mediating nicotine reward and addiction. Current FDA-approved medications for smoking cessation are the antidepressant bupropion and the nicotinic partial agonist varenicline, yet both are limited by adverse side effects and moderate efficacy. Thus, development of more efficacious medications with fewer side effects for nicotine addiction and smoking cessation is urgently needed. l-Tetrahydropalmatine (l-THP) is an active ingredient of the Chinese medicinal herb Corydalis ambigua that possesses rich neuropharmacological actions on dopamine (DA) receptors in the mesocorticolimbic dopaminergic reward pathway. L-THP has been explored as anti-addiction treatments for drug abuse including nicotine. However, the targets and mechanisms of l-THP-caused anti-nicotine effects are largely unknown. In this study we address this question by elucidating the effects of l-THP on human neuronal nAChRs using patch-clamp recordings. Human neuronal α4β2-nAChRs were heterologously expressed in SH-EP1 human epithelial cells. Bath application of nicotine (0.1-100 μM) induced inward currents, co-application of l-THP (3 μM) inhibited nicotine-induced currents in the transfected cells. L-THP-caused inhibition was concentration-dependent (the EC50 values for inhibiting the peak and steady-state current were 18 and 2.1 μM, respectively) and non-competitive. Kinetic analysis of the whole-cell currents showed that l-THP slowed rising time and accelerated decay time constants. L-THP specifically modulated α4β2-nAChRs, as it did not affect α7-nAChRs or α1*-nAChRs (muscle type). Interestingly, two putative α4β2-nAChR isoforms, namely sazetidine A-activated, high-sensitive one (α42β23-nAChR) and cytisine-activated, low-sensitive one (α43β22-nAChR) were pharmacologically separated, and the low-sensitive one was more susceptible to l-THP inhibition than the high-sensitive one. In conclusion, we demonstrate that l-THP blocks neuronal α4β2-nAChR function, which may underlie its inhibition on nicotine addiction.
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Affiliation(s)
- Yuan-Bing Huang
- Department of Neurology, Yunfu People's Hospital, Yunfu, 527300, China
- Department of Neurobiology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, 85013, USA
| | - Ze-Gang Ma
- Department of Neurobiology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, 85013, USA
- Electrophysiology Laboratory, Wannan Medical College, Wuhu, 695011, China
| | - Chao Zheng
- Department of Neurobiology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, 85013, USA
- Institution of Brain Sciences and Diseases, Qingdao University, Qingdao, 266071, China
| | - Xiao-Kuang K Ma
- Department of Neurobiology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, 85013, USA
- Department of Pharmacology, Shantou University Medical College, Shantou, 515041, China
| | - Devin H Taylor
- Department of Neurobiology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, 85013, USA
- Department of Biology, Utah Valley University, Orem, UT, 84058, USA
| | - Ming Gao
- Department of Neurobiology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, 85013, USA
| | - Ronald J Lukas
- Department of Neurobiology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, 85013, USA
| | - Jie Wu
- Department of Neurobiology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ, 85013, USA.
- Institution of Brain Sciences and Diseases, Qingdao University, Qingdao, 266071, China.
- Department of Pharmacology, Shantou University Medical College, Shantou, 515041, China.
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Plazas E, Avila M MC, Muñoz DR, Cuca S LE. Natural isoquinoline alkaloids: Pharmacological features and multi-target potential for complex diseases. Pharmacol Res 2022; 177:106126. [DOI: 10.1016/j.phrs.2022.106126] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/28/2022] [Accepted: 02/08/2022] [Indexed: 12/13/2022]
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Gupta M, Patel S. Nature-derived Quinolines and Isoquinolines: A Medicinal Chemistry Perspective. CURRENT TRADITIONAL MEDICINE 2021. [DOI: 10.2174/2215083805666190614115701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Quinoline and isoquinoline motifs are commonly encountered in natural products
of diverse origins. These moderately basic fused-heterocyclic rings containing natural
products are adorned with remarkable biological activities with clinical use in various diseases
demonstrating nature elegance and creativity. Therefore, these privileged rings have
attracted profound interest from the scientific community. In this perspective, we have discussed
medicinal chemistry perspective of the natural products containing quinoline and
isoquinoline scaffolds.
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Affiliation(s)
- Mohit Gupta
- Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, United States
| | - Saloni Patel
- Division of Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, United States
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Cordone P, Namballa HK, Harding WW. First synthesis of thiazepino[3,4‐a]isoquinolines, a facile new synthetic route to diazepino[3,4‐a]isoquinolines and assessment of their dopamine and σ receptor affinities. J Heterocycl Chem 2020; 57:3709-3713. [DOI: 10.1002/jhet.4086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Pierpaolo Cordone
- Department of Chemistry Hunter College, City University of New York New York New York USA
- Ph.D. Program in Biochemistry CUNY Graduate Center New York New York USA
| | - Hari Krishna Namballa
- Department of Chemistry Hunter College, City University of New York New York New York USA
| | - Wayne Wesley Harding
- Department of Chemistry Hunter College, City University of New York New York New York USA
- Ph.D. Program in Biochemistry CUNY Graduate Center New York New York USA
- Ph.D. Program in Chemistry CUNY Graduate Center New York New York USA
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10
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Bennett A, Barrera E, Namballa H, Harding W, Ranaldi R. (-)-Stepholidine blocks expression, but not development, of cocaine conditioned place preference in rats. Neurosci Lett 2020; 734:135151. [PMID: 32531529 PMCID: PMC7368993 DOI: 10.1016/j.neulet.2020.135151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/06/2020] [Accepted: 06/08/2020] [Indexed: 01/08/2023]
Abstract
The purpose of this study was to investigate the effects of (-)-stepholidine (SPD), a compound with dopamine D1 partial agonist and D2/D3 antagonist properties, on the development and expression of cocaine conditioned place preference (CPP). Subjects (N = 65; male Long Evans rats) were tested using a CPP procedure consisting of 3 phases: (1) a 15-min pre-exposure session where animals could explore each compartment freely, (2) eight 30-min conditioning sessions where animals were restricted to one side or the other with cocaine (10 mg/kg) or saline, respectively, on alternating days and (3) a 15-minute preference test session where animals could explore each compartment freely. To test the effects of SPD on expression of cocaine CPP, rats were administered vehicle (distilled water with 20 % DMSO), 10, 15 or 20 mg/kg SPD (intraperitoneally) 30 min prior to the test session. We found that 20 mg/kg of SPD significantly blocked the expression of cocaine CPP. To test the effects of SPD on the development of CPP, 0 (vehicle), 10, 15 or 20mg/kg SPD were administered 30 min prior to each cocaine conditioning session and vehicle before each saline conditioning session; no treatment was given prior to the test session. A preference test showed that each SPD group maintained a CPP similar to the vehicle group. These data indicate that SPD can block the expression of a cocaine CPP but has no effect on its development, suggesting that it inhibits the effects of cocaine cues on cocaine incentive motivated behavior. These results suggest that SPD may be a potential treatment for cue-driven aspects of cocaine use disorder.
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Affiliation(s)
- A Bennett
- Queens College of the City University of New York, Department of Psychology, USA
| | - E Barrera
- Queens College of the City University of New York, Department of Psychology, USA
| | - H Namballa
- Hunter College of the City University of New York, Department of Chemistry, USA; CUNY Graduate Center, 365 5thAvenue, New York, NY 10016, USA; CUNY Graduate Center, 365 5thAvenue, New York, NY 10016, USA
| | - W Harding
- Hunter College of the City University of New York, Department of Chemistry, USA; CUNY Graduate Center, 365 5thAvenue, New York, NY 10016, USA; CUNY Graduate Center, 365 5thAvenue, New York, NY 10016, USA
| | - R Ranaldi
- Queens College of the City University of New York, Department of Psychology, USA; CUNY Graduate Center, 365 5thAvenue, New York, NY 10016, USA.
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11
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de Lima BR, Lima JM, Maciel JB, Valentim CQ, Nunomura RDCS, Lima ES, Koolen HHF, de Souza ADL, Pinheiro MLB, Cass QB, da Silva FMA. Synthesis and Inhibition Evaluation of New Benzyltetrahydroprotoberberine Alkaloids Designed as Acetylcholinesterase Inhibitors. Front Chem 2019; 7:629. [PMID: 31620424 PMCID: PMC6760013 DOI: 10.3389/fchem.2019.00629] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Accepted: 09/02/2019] [Indexed: 11/13/2022] Open
Abstract
Secondary metabolites from natural products are a potential source of acetylcholinesterase inhibitors (AChEIs), which is a key enzyme in the treatment of many neurodegenerative diseases. Inspired by the reported activities of isoquinoline-derivative alkaloids herein we report the design, one step synthesis and evaluation by capillary enzyme reactor (ICER) of benzyl analogs (1a–1e) of the tetrahydroprotoberberine alkaloid stepholidine, which is abundant in Onychopetalum amazonicum. Docking analysis based on the crystal structure of Torpedo californica AChE (TcAChE) indicated that π-π interactions were dominant in all planned derivatives and that the residues from esteratic, anionic and peripheral subsites of the enzyme played key interaction roles. Due to the similarities observed when compared with galantamine in the AChE complex, the results suggest that ligand-target interactions would increase, especially for the N-benzyl derivatives. From a series of synthesized compounds, the alkaloids (7R,13aS)-7-benzylstepholidine (1a), (7S,13aS)-7-benzylstepholidine (1b), and (S)-10-O-benzylstepholidine (1d) are reported here for the first time. The on flow bioaffinity chromatography inhibition assay, based on the quantification of choline, revealed the N-benzylated compound 1a and its epimer 1b to be the most active, with IC50 of 40.6 ± 1 and 51.9 ± 1 μM, respectively, and a non-competitive mechanism. The proposed approach, which is based on molecular docking and bioaffinity chromatography, demonstrated the usefulness of stepholidine as a template for the design of rational AChEIs and showed how the target-alkaloid derivatives interact with AChE.
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Affiliation(s)
- Bruna R de Lima
- Central Analítica-Centro de Apoio Multidisciplinar, Universidade Federal do Amazonas, Manaus, Brazil
| | - Juliana M Lima
- Separare, Departamento de Química, Universidade Federal de São Carlos, São Carlos, Brazil
| | - Jéssica B Maciel
- Central Analítica-Centro de Apoio Multidisciplinar, Universidade Federal do Amazonas, Manaus, Brazil
| | | | - Rita de Cássia S Nunomura
- Central Analítica-Centro de Apoio Multidisciplinar, Universidade Federal do Amazonas, Manaus, Brazil.,Departamento de Química, Universidade Federal do Amazonas, Manaus, Brazil
| | - Emerson S Lima
- Faculdade de Farmácia, Universidade Federal do Amazonas, Manaus, Brazil
| | - Hector H F Koolen
- Grupo de Pesquisa em Metabolômica e Espectrometria de Massas, Universidade do Estado do Amazonas, Manaus, Brazil
| | - Afonso Duarte L de Souza
- Central Analítica-Centro de Apoio Multidisciplinar, Universidade Federal do Amazonas, Manaus, Brazil.,Departamento de Química, Universidade Federal do Amazonas, Manaus, Brazil
| | - Maria Lúcia B Pinheiro
- Central Analítica-Centro de Apoio Multidisciplinar, Universidade Federal do Amazonas, Manaus, Brazil.,Departamento de Química, Universidade Federal do Amazonas, Manaus, Brazil
| | - Quezia B Cass
- Separare, Departamento de Química, Universidade Federal de São Carlos, São Carlos, Brazil
| | - Felipe Moura A da Silva
- Central Analítica-Centro de Apoio Multidisciplinar, Universidade Federal do Amazonas, Manaus, Brazil
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12
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Dopamine D 1 receptor agonists inhibit lung metastasis of breast cancer reducing cancer stemness. Eur J Pharmacol 2019; 859:172499. [PMID: 31242439 DOI: 10.1016/j.ejphar.2019.172499] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 06/21/2019] [Accepted: 06/21/2019] [Indexed: 12/12/2022]
Abstract
The leading causes of death in breast cancer patients are disease recurrence and metastasis. Growing evidence has suggested that metastasis possibly originates from cancer stem-like cells (CSCs). Previous studies indicated dopamine decreased CSC frequency through activating dopamine D1 receptor pathway. Hence, this study explored the efficacy of two dopamine D1 receptor agonists in lung metastasis of breast cancer and the preliminary mechanism. The two dopamine D1 receptor agonists, fenoldopam (FEN) and l-stepholidine (l-SPD), performed well in decreasing lung metastasis in 4T1 breast cancer model. And the cGMP in the primary tumor was significantly elevated while cAMP mildly elevated in FEN and l-SPD dosing groups. CSC markers (CD44+/CD24- and ALDH+) and MMP2 in 4T1 primary tumor were repressed after dopamine D1 receptor agonist administration while E-cadherin up-regulated. FEN and l-SPD also inhibited cancer stemness and cell motility in vitro, and the inhibitory effects could be reversed by dopamine D1 receptor antagonist SCH23390. Besides, FEN impacted the white blood cell increase caused by breast cancer disease showing decreased neutrophils but increased lymphocytes. Drug safety was verified in aspects of body weight, organ index and tissue section. In conclusion, dopamine D1 receptor agonists FEN and l-SPD showed efficacy in inhibiting metastasis along with good safety in breast cancer, thus providing an alternative for anti-metastasis therapy in the future. Furthermore, this study also indicates that dopamine D1 receptor may be a possible target for metastatic breast cancer treatment and even other cancers at a late stage.
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13
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Chemical synthesis, microbial transformation and biological evaluation of tetrahydroprotoberberines as dopamine D1/D2 receptor ligands. Bioorg Med Chem 2019; 27:2100-2111. [DOI: 10.1016/j.bmc.2019.04.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/20/2019] [Accepted: 04/06/2019] [Indexed: 01/11/2023]
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Ge H, Bian Y, He X, Xie XQ, Wang J. Significantly different effects of tetrahydroberberrubine enantiomers on dopamine D1/D2 receptors revealed by experimental study and integrated in silico simulation. J Comput Aided Mol Des 2019; 33:447-459. [PMID: 30840169 PMCID: PMC6768063 DOI: 10.1007/s10822-019-00194-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 02/27/2019] [Indexed: 12/26/2022]
Abstract
Tetrahydroberberrubine (TU), an active tetrahydroprotoberberines (THPBs), is gaining increasing popularity as a potential candidate for treatment of anxiety and depression. One of its two enantiomers, l-TU, has been reported to be an antagonist of both D1 and D2 receptors, but the functional activity of the other enantiomer, d-TU, is still unknown. In this study, experiments were combined with in silico molecular simulations to (1) confirm and discover the functional activities of l-TU and d-TU, and (2) systematically evaluate the molecular mechanisms beyond the experimental observations. l-TU proved to be an antagonist of both D1 and D2 receptors (IC50 = 385 nM and 985 nM, respectively), while d-TU shows no affinity against either D1 or D2 receptor, based on the cAMP assay (D1 receptor) and calcium flux assay (D2 receptor). Results from both flexible-ligand docking studies and molecular dynamic (MD) simulations provided insights at the atomic level. The l-TU-bound structures predicted by MD (1) undergo an outward rotation of the extracellular helical bundles; (2) have an enlarged orthosteric binding pocket; and (3) have a central toggle switch that is prevented from rotating freely. These features are unique to the l-TU enantiomer and provide an explanation for its antagonistic behavior toward both D1 and D2 receptors. The present study provides new sight on the structural and functional relationships of l-TU and d-TU binding to dopamine receptors, and provides guidance to the rational design of novel molecules targeting these two dopamine receptors in the future.
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Affiliation(s)
- Haixia Ge
- School of Life Sciences, Huzhou University, Huzhou, 313000, China.
| | - Yuemin Bian
- Department of Pharmaceutical Sciences and Computational Chemical Genomics Screening Center, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- NIDA National Center of Excellence for Computational Drug Abuse Research, Drug Discovery Institute, University of Pittsburgh, Pittsburgh, PA, 15261, USA
- Department of Computational Biology and Structural Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Xibing He
- Department of Pharmaceutical Sciences and Computational Chemical Genomics Screening Center, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - Xiang-Qun Xie
- Department of Pharmaceutical Sciences and Computational Chemical Genomics Screening Center, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, 15261, USA.
- NIDA National Center of Excellence for Computational Drug Abuse Research, Drug Discovery Institute, University of Pittsburgh, Pittsburgh, PA, 15261, USA.
- Department of Computational Biology and Structural Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA, 15261, USA.
| | - Junmei Wang
- Department of Pharmaceutical Sciences and Computational Chemical Genomics Screening Center, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA, 15261, USA.
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15
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Hicks C, Huang P, Ramos L, Nayak SU, Caro Y, Reitz AB, Smith GR, Lee DYW, Rawls SM, Liu-Chen LY. Dopamine D1-Like Receptor Agonist and D2-Like Receptor Antagonist (-)-Stepholidine Reduces Reinstatement of Drug-Seeking Behavior for 3,4-Methylenedioxypyrovalerone (MDPV) in Rats. ACS Chem Neurosci 2018; 9:1327-1337. [PMID: 29597343 DOI: 10.1021/acschemneuro.7b00510] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Psychostimulant reinforcement is mediated by stimulation of both dopamine (DA) D1-like and D2-like receptors, suggesting that pharmacotherapy agents with a dual DA receptor mechanism may be useful for managing psychostimulant abuse. (-)-Stepholidine (L-SPD) is a Chinese herbal extract that functions as a D1-like receptor agonist and D2-like receptor antagonist. L-SPD has been shown to attenuate the reinforcing effects of heroin; however, its effects on the synthetic cathinone 3,4-methylenedioxypyrovalerone (MDPV) have not been examined. The current study determined the effects of L-SPD on reinstatement of MDPV-seeking behavior in the drug intravenous self-administration (IVSA) and conditioned place preference (CPP) paradigms. To determine whether the effects of L-SPD were specific to psychostimulant reinforcement, we also examined its effects on sucrose-seeking behavior. Using a locomotor activity assay, we tested the locomotor effects of L-SPD, as well as its effects on MDPV-induced hyperactivity. The results of a battery of in vitro binding and functional assays confirmed that L-SPD functioned as a D1-like receptor agonist and D2-like receptor antagonist. In behavioral experiments, L-SPD dose-dependently attenuated cue plus MDPV-primed reinstatement of MDPV-seeking behavior in the IVSA model. The highest dose of L-SPD also attenuated MDPV-primed reinstatement of MDPV CPP, as well as cue-induced reinstatement of sucrose-seeking. L-SPD had no significant locomotor effects, and did not modulate the robust hyperactivity induced by MDPV. The current findings show for the first time a robust reinstatement effect with MDPV, which can be reduced by L-SPD. These results establish a role for DA receptors in drug-seeking behavior for MDPV.
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Affiliation(s)
- Callum Hicks
- Department of Pharmacology, Temple University School of Medicine, Philadelphia, Pennsylvania 19140, United States
- Center for Substance Abuse Research, Temple University School of Medicine, Philadelphia, Pennsylvania 19140, United States
| | - Peng Huang
- Department of Pharmacology, Temple University School of Medicine, Philadelphia, Pennsylvania 19140, United States
- Center for Substance Abuse Research, Temple University School of Medicine, Philadelphia, Pennsylvania 19140, United States
| | - Linnet Ramos
- Department of Pharmacology, Temple University School of Medicine, Philadelphia, Pennsylvania 19140, United States
- Center for Substance Abuse Research, Temple University School of Medicine, Philadelphia, Pennsylvania 19140, United States
| | - Sunil U. Nayak
- Department of Pharmacology, Temple University School of Medicine, Philadelphia, Pennsylvania 19140, United States
- Center for Substance Abuse Research, Temple University School of Medicine, Philadelphia, Pennsylvania 19140, United States
| | - Yohanka Caro
- Department of Pharmacology, Temple University School of Medicine, Philadelphia, Pennsylvania 19140, United States
- Center for Substance Abuse Research, Temple University School of Medicine, Philadelphia, Pennsylvania 19140, United States
| | - Allen B. Reitz
- Fox Chase
Chemical Diversity Center, Doylestown, Pennsylvania 18902, United States
| | - Garry R. Smith
- Fox Chase
Chemical Diversity Center, Doylestown, Pennsylvania 18902, United States
| | - David Y.-W. Lee
- Bio-Organic and Natural Products Laboratory, McLean Hospital, Harvard Medical School, Belmont, Massachusetts 02478, United States
| | - Scott M. Rawls
- Department of Pharmacology, Temple University School of Medicine, Philadelphia, Pennsylvania 19140, United States
- Center for Substance Abuse Research, Temple University School of Medicine, Philadelphia, Pennsylvania 19140, United States
| | - Lee-Yuan Liu-Chen
- Department of Pharmacology, Temple University School of Medicine, Philadelphia, Pennsylvania 19140, United States
- Center for Substance Abuse Research, Temple University School of Medicine, Philadelphia, Pennsylvania 19140, United States
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16
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Lins BR, Marks WN, Phillips AG, Howland JG. Dissociable effects of the d- and l- enantiomers of govadine on the disruption of prepulse inhibition by MK-801 and apomorphine in male Long-Evans rats. Psychopharmacology (Berl) 2017; 234:1079-1091. [PMID: 28180960 DOI: 10.1007/s00213-017-4540-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Accepted: 01/23/2017] [Indexed: 01/02/2023]
Abstract
RATIONALE The search for novel antipsychotic drugs to treat schizophrenia is driven by the poor treatment efficacy, serious side effects, and poor patient compliance of current medications. Recently, a class of compounds known as tetrahydroprotoberberines, which includes the compound d,l-govadine, have shown promise in preclinical rodent tests relevant to schizophrenia. To date, the effect of govadine on prepulse inhibition (PPI), a test for sensorimotor gating commonly used to assess the effects of putative treatments for schizophrenia, has not been determined. OBJECTIVES The objective of the present study was to determine the effects of each enantiomer of govadine (d- and l-govadine) on PPI alone and its disruption by the distinct pharmacological compounds apomorphine and MK-801. METHODS Male Long-Evans rats were treated systemically with d- or l-govadine and apomorphine or MK-801 prior to PPI. The PPI paradigm employed here included parametric manipulations of the prepulse intensity and the interval between the prepulse and pulse. RESULTS Acute MK-801 (0.15 mg/kg) significantly increased the startle response to startle pulses alone, while both MK-801 and apomorphine (0.2 mg/kg) significantly increased reactivity to prepulse-alone trials. Both MK-801 and apomorphine disrupted PPI. In addition, d-govadine alone significantly disrupted PPI in the apomorphine experiment. Pretreatment with l-, but not d-, govadine (1.0 mg/kg) blocked the effect of apomorphine and MK-801 on PPI. Treatment of rats with l-govadine alone (0.3, 1.0, 3.0 mg/kg) also dose-dependently increased PPI. CONCLUSIONS Given the high affinity of l-govadine for dopamine D2 receptors, these results suggest that further testing of l-govadine as an antipsychotic is warranted.
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Affiliation(s)
- Brittney R Lins
- Department of Physiology, University of Saskatchewan, GD30.7, Health Sciences Building, 107 Wiggins Rd, Saskatoon, SK, S7N 5E5, Canada
| | - Wendie N Marks
- Department of Physiology, University of Saskatchewan, GD30.7, Health Sciences Building, 107 Wiggins Rd, Saskatoon, SK, S7N 5E5, Canada
| | - Anthony G Phillips
- Department of Psychiatry, Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada
| | - John G Howland
- Department of Physiology, University of Saskatchewan, GD30.7, Health Sciences Building, 107 Wiggins Rd, Saskatoon, SK, S7N 5E5, Canada.
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17
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Levo-Tetrahydroberberrubine Produces Anxiolytic-Like Effects in Mice through the 5-HT1A Receptor. PLoS One 2017; 12:e0168964. [PMID: 28085967 PMCID: PMC5234788 DOI: 10.1371/journal.pone.0168964] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 12/10/2016] [Indexed: 12/02/2022] Open
Abstract
Tetrahydroprotoberberines (THPBs) are isoquinoline alkaloids isolated from the Chinese herb Corydalis yanhusuo. In the present study, we performed competitive binding assays to examine the binding of l-THBr to neurotransmitter receptors known to be involved in sedation, hypnosis and anxiety. Our results show that l-THBr does not interact with GABAergic receptors but has binding affinities for dopamine and serotonin receptors. In addition, cAMP and [35S]GTPγS assays were used to determine the agonist or antagonist properties of l-THBr at dopamine (D1, D2) or serotonin (5-HT) receptors. Our results show that l-THBr displays D1 and D2 antagonist and 5-HT1A agonist properties. Moreover, l-THBr-treated rodents exhibit anxiolytic-like effects in the light/dark box and elevated plus-maze tests, and the anxiolytic effect of l-THBr can be reduced by WAY-100635, a selective 5-HT1A receptor antagonist. Our results suggest that l-THBr may produce potent anxiolytic-like effects mainly through serotonin receptors.
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18
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Madapa S, Gadhiya S, Kurtzman T, Alberts IL, Ramsey S, Reith M, Harding WW. Synthesis and evaluation of C9 alkoxy analogues of (-)-stepholidine as dopamine receptor ligands. Eur J Med Chem 2016; 125:255-268. [PMID: 27688181 DOI: 10.1016/j.ejmech.2016.09.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 09/09/2016] [Accepted: 09/10/2016] [Indexed: 01/01/2023]
Abstract
Tetrahydroprotoberberine alkaloids have shown interesting polypharmacological actions at dopamine receptors and are a unique template from which to mine novel molecules with dual selective actions at D1 and D3 receptors. Such compounds will be valuable to evaluate as anti-cocaine therapeutics. Towards that eventual goal, we engaged an SAR study in which a series of C9 alkoxy analogues of the D1/D2/D3 ligand (-)-stepholidine that possessed or lacked a C12 bromo functionality, were synthesized and evaluated for affinity at dopamine D1, D2 and D3 receptors. We found that the analogues are generally selective for the D1 receptor. Small n-alkoxy substituents (up to 4 carbons in length) were generally well tolerated for high D1 affinity but such groups reduced D3 affinity. In the case of C12 brominated analogues, C9 alkoxylation also had little effect on D1 affinity for the smaller alkoxy groups, but reduced D2 and D3 affinities significantly. C12 bromination tends to increase D1 receptor selectivity. A number of compounds were identified that retain affinity for D1 and D3 receptors but lack D2 receptor affinity. Among them, compound 22a was found to be a selective D1/D3 dual antagonist (Ki = 5.3 and 106 nM at D1 and D3 receptors). Docking studies performed on the analogues at the D3 receptor revealed a number of interactions that are important for affinity including a critical N - Asp110 salt bridge motif, H-bonds to Ser192 and Cys181 and hydrophobic interactions between the aryl rings and Phe106 and Phe345. The analogues adopt an orientation in which ring A is located in the orthosteric binding site while the C9 alkoxy substituents attached to ring D project into the secondary binding pocket of the D3 receptor.
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Affiliation(s)
- Sudharshan Madapa
- Department of Chemistry, Hunter College, City University of New York, 695 Park Avenue, NY 10065, USA
| | - Satishkumar Gadhiya
- Department of Chemistry, Hunter College, City University of New York, 695 Park Avenue, NY 10065, USA; Ph.D. Program in Chemistry, CUNY Graduate Center, 365 5th Avenue, New York, NY 10016, USA
| | - Thomas Kurtzman
- Ph.D. Program in Chemistry, CUNY Graduate Center, 365 5th Avenue, New York, NY 10016, USA; Ph.D. Program in Biochemistry, CUNY Graduate Center, 365 5th Avenue, New York, NY 10016, USA; Department of Chemistry, Lehman College, The City University of New York, Bronx, NY 10468, USA
| | - Ian L Alberts
- Department of Natural Sciences, LaGuardia Community College, City University of New York, New York, NY 11101, USA
| | - Steven Ramsey
- Ph.D. Program in Biochemistry, CUNY Graduate Center, 365 5th Avenue, New York, NY 10016, USA; Department of Chemistry, Lehman College, The City University of New York, Bronx, NY 10468, USA
| | - Maarten Reith
- Department of Psychiatry, New York University, New York, NY 10016, USA
| | - Wayne W Harding
- Department of Chemistry, Hunter College, City University of New York, 695 Park Avenue, NY 10065, USA; Ph.D. Program in Chemistry, CUNY Graduate Center, 365 5th Avenue, New York, NY 10016, USA; Ph.D. Program in Biochemistry, CUNY Graduate Center, 365 5th Avenue, New York, NY 10016, USA.
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Gadhiya SV, Hu C, Harding WW. An alternative synthesis and x-ray crystallographic confirmation of (-)-stepholidine. Tetrahedron Lett 2016; 57:2090-2092. [PMID: 27152055 PMCID: PMC4852479 DOI: 10.1016/j.tetlet.2016.03.108] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
A formal enantioselective synthesis of (-)-stepholidine that provides an alternative preparation of key lactone intermediate 2 is described. The stereostructure of (-)-stepholidine prepared via this method was confirmed by x-ray diffraction.
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Affiliation(s)
- Satishkumar V Gadhiya
- Department of Chemistry, Hunter College, City University of New York, 695 Park Avenue, New York 10065, USA; Ph.D. Program in Chemistry, The Graduate Center of The City University of New York, 365 5th Avenue, New York 10016, USA
| | - Chunhua Hu
- Molecular Design Institute, Department of Chemistry, New York University, 100 Washington Square, New York 10003, USA
| | - Wayne W Harding
- Department of Chemistry, Hunter College, City University of New York, 695 Park Avenue, New York 10065, USA; Ph.D. Program in Chemistry, The Graduate Center of The City University of New York, 365 5th Avenue, New York 10016, USA; Ph.D. Program in Biochemistry, The Graduate Center of The City University of New York, 365 5th Avenue, New York 10016, USA
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Sengupta T, Vinayagam J, Singh R, Jaisankar P, Mohanakumar KP. Plant-Derived Natural Products for Parkinson's Disease Therapy. ADVANCES IN NEUROBIOLOGY 2016; 12:415-96. [PMID: 27651267 DOI: 10.1007/978-3-319-28383-8_23] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Plant-derived natural products have made their own niche in the treatment of neurological diseases since time immemorial. Parkinson's disease (PD), the second most prevalent neurodegenerative disorder, has no cure and the treatment available currently is symptomatic. This chapter thoughtfully and objectively assesses the scientific basis that supports the increasing use of these plant-derived natural products for the treatment of this chronic and progressive disorder. Proper considerations are made on the chemical nature, sources, preclinical tests and their validity, and mechanisms of behavioural or biochemical recovery observed following treatment with various plants derived natural products relevant to PD therapy. The scientific basis underlying the neuroprotective effect of 6 Ayurvedic herbs/formulations, 12 Chinese medicinal herbs/formulations, 33 other plants, and 5 plant-derived molecules have been judiciously examined emphasizing behavioral, cellular, or biochemical aspects of neuroprotection observed in the cellular or animal models of the disease. The molecular mechanisms triggered by these natural products to promote cell survivability and to reduce the risk of cellular degeneration have also been brought to light in this study. The study helped to reveal certain limitations in the scenario: lack of preclinical studies in all cases barring two; heavy dependence on in vitro test systems; singular animal or cellular model to establish any therapeutic potential of drugs. This strongly warrants further studies so as to reproduce and confirm these reported effects. However, the current literature offers scientific credence to traditionally used plant-derived natural products for the treatment of PD.
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Affiliation(s)
- T Sengupta
- Division of Cell Biology & Physiology, Indian Institute of Chemical Biology (CSIR, Govt of India), 4, Raja S.C. Mullick Road, Jadavpur, Kolkata, 700 032, India
| | - J Vinayagam
- Division of Chemistry, Indian Institute of Chemical Biology (CSIR, Govt of India), 4, Raja S.C. Mullick Road, Kolkata, 700 032, India
| | - R Singh
- Division of Cell Biology & Physiology, Indian Institute of Chemical Biology (CSIR, Govt of India), 4, Raja S.C. Mullick Road, Jadavpur, Kolkata, 700 032, India
| | - P Jaisankar
- Division of Chemistry, Indian Institute of Chemical Biology (CSIR, Govt of India), 4, Raja S.C. Mullick Road, Kolkata, 700 032, India
| | - K P Mohanakumar
- Division of Cell Biology & Physiology, Indian Institute of Chemical Biology (CSIR, Govt of India), 4, Raja S.C. Mullick Road, Jadavpur, Kolkata, 700 032, India. .,Inter University Centre for Biomedical Research & Super Specialty Hospital, Mahatma Gandhi University Campus at Thalappady, Rubber Board PO, Kottayam, 686009, Kerala, India.
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21
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Meade JA, Free RB, Miller NR, Chun LS, Doyle TB, Moritz AE, Conroy JL, Watts VJ, Sibley DR. (-)-Stepholidine is a potent pan-dopamine receptor antagonist of both G protein- and β-arrestin-mediated signaling. Psychopharmacology (Berl) 2015; 232:917-30. [PMID: 25231919 PMCID: PMC5234683 DOI: 10.1007/s00213-014-3726-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 08/13/2014] [Indexed: 01/11/2023]
Abstract
RATIONALE (-)-Stepholidine is a tetrahydroberberine alkaloid that is known to interact with dopamine receptors and has also been proposed as a novel antipsychotic agent. Its suggested novelty lies in the fact that it has been proposed to have D1-like receptor agonist and D2-like receptor antagonist properties. Thus, it might be effective in treating both positive and negative (cognition) symptoms of schizophrenia. However, its activity on specific dopamine receptor subtypes has not been clarified, especially with respect to its ability to activate D1-like receptors. OBJECTIVES We wished to examine the affinity and functional activity of (-)-stepholidine at each of the human dopamine receptor subtypes expressed in a defined cellular environment. METHODS D1-D5 dopamine receptors were stably expressed in cell lines and their interactions with (-)-stepholidine were examined using radioligand binding and various functional signaling assays. Radioligand binding assays were also performed using bovine striatal membranes. RESULTS (-)-Stepholidine exhibited high (nM) affinity for D1 and D5 receptors, somewhat lower (two- to four-fold) affinity for D2 and D3 receptors, and low micromolar affinity for D4 receptors. Functionally, (-)-stepholidine was ineffective in activating G protein-mediated signaling of D1-like and D2 receptors and was also ineffective in stimulating β-arrestin recruitment to any dopamine receptor subtype. It did, however, antagonize all of these responses. It also antagonized D1-D2 heteromer-mediated Ca(2+) mobilization. Radioligand binding assays of D1-like receptors in brain membranes also indicated that (-)-stepholidine binds to the D1 receptor with antagonist-like properties. CONCLUSIONS (-)-Stepholidine is a pan-dopamine receptor antagonist and its in vivo effects are largely mediated through dopamine receptor blockade with potential cross-talk to other receptors or signaling proteins.
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Affiliation(s)
- Julie A Meade
- Molecular Neuropharmacology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, 5625 Fishers Lane, Room 4S-04, Bethesda, MD, 20892-9405, USA
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Desgrouas C, Taudon N, Bun SS, Baghdikian B, Bory S, Parzy D, Ollivier E. Ethnobotany, phytochemistry and pharmacology of Stephania rotunda Lour. JOURNAL OF ETHNOPHARMACOLOGY 2014; 154:537-563. [PMID: 24768769 DOI: 10.1016/j.jep.2014.04.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Revised: 04/11/2014] [Accepted: 04/12/2014] [Indexed: 06/03/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Stephania rotunda Lour. (Menispermaceae) is an important traditional medicinal plant that is grown in Southeast Asia. The stems, leaves, and tubers have been used in the Cambodian, Lao, Indian and Vietnamese folk medicine systems for years to treat a wide range of ailments, including asthma, headache, fever, and diarrhoea. AIM OF THE REVIEW To provide an up-to-date, comprehensive overview and analysis of the ethnobotany, phytochemistry, and pharmacology of Stephania rotunda for its potential benefits in human health, as well as to assess the scientific evidence of traditional use and provide a basis for future research directions. MATERIAL AND METHODS Peer-reviewed articles on Stephania rotunda were acquired via an electronic search of the major scientific databases (Pubmed, Google Scholar, and ScienceDirect). Data were collected from scientific journals, theses, and books. RESULTS The traditional uses of Stephania rotunda were recorded in countries throughout Southeast Asia (Cambodia, Vietnam, Laos, and India). Different parts of Stephania rotunda were used in traditional medicine to treat about twenty health disorders. Phytochemical analyses identified forty alkaloids. The roots primarily contain l-tetrahydropalmatine (l-THP), whereas the tubers contain cepharanthine and xylopinine. Furthermore, the chemical composition differs from one region to another and according to the harvest period. The alkaloids exhibited approximately ten different pharmacological activities. The main pharmacological activities of Stephania rotunda alkaloids are antiplasmodial, anticancer, and immunomodulatory effects. Sinomenine, cepharanthine, and l-stepholidine are the most promising components and have been tested in humans. The pharmacokinetic parameters have been studied for seven compounds, including the three most promising compounds. The toxicity has been evaluated for liriodenine, roemerine, cycleanine, l-tetrahydropalmatine, and oxostephanine. CONCLUSION Stephania rotunda is traditionally used for the treatment of a wide range of ailments. Pharmacological investigations have validated different uses of Stephania rotunda in folk medicine. The present review highlights the three most promising compounds of Stephania rotunda, which could constitute potential leads in various medicinal fields, including malaria and cancer.
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Affiliation(s)
- Camille Desgrouas
- UMR-MD3, IRBA, Faculté de Pharmacie, 27 boulevard Jean Moulin CS30064 13385 Marseille cedex 5, Aix-Marseille Université, France; UMR-MD3, Laboratoire de Pharmacognosie et Ethnopharmacologie, Faculté de Pharmacie, 27 boulevard Jean Moulin CS30064 13385 Marseille cedex 5, Aix-Marseille Université, France.
| | | | - Sok-Siya Bun
- UMR-MD3, Laboratoire de Pharmacognosie et Ethnopharmacologie, Faculté de Pharmacie, 27 boulevard Jean Moulin CS30064 13385 Marseille cedex 5, Aix-Marseille Université, France.
| | - Beatrice Baghdikian
- UMR-MD3, Laboratoire de Pharmacognosie et Ethnopharmacologie, Faculté de Pharmacie, 27 boulevard Jean Moulin CS30064 13385 Marseille cedex 5, Aix-Marseille Université, France.
| | - Sothavireak Bory
- Faculté de Pharmacie, Université des Sciences de la Santé, no. 73, Monivong Blvd, Daun Penh, Phnom Penh, Cambodia.
| | - Daniel Parzy
- UMR-MD3, IRBA, Faculté de Pharmacie, 27 boulevard Jean Moulin CS30064 13385 Marseille cedex 5, Aix-Marseille Université, France.
| | - Evelyne Ollivier
- UMR-MD3, Laboratoire de Pharmacognosie et Ethnopharmacologie, Faculté de Pharmacie, 27 boulevard Jean Moulin CS30064 13385 Marseille cedex 5, Aix-Marseille Université, France.
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Rao NP, Remington G. Investigational drugs for schizophrenia targeting the dopamine receptor: Phase II trials. Expert Opin Investig Drugs 2013; 22:881-94. [DOI: 10.1517/13543784.2013.795945] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Neuroprotective phenolics in medicinal plants. Arch Pharm Res 2010; 33:1611-32. [DOI: 10.1007/s12272-010-1011-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2010] [Revised: 09/02/2010] [Accepted: 09/02/2010] [Indexed: 12/26/2022]
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Wu C, Yang K, Liu Q, Wakui M, Jin GZ, Zhen X, Wu J. Tetrahydroberberine blocks ATP-sensitive potassium channels in dopamine neurons acutely-dissociated from rat substantia nigra pars compacta. Neuropharmacology 2010; 59:567-72. [PMID: 20804776 DOI: 10.1016/j.neuropharm.2010.08.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2010] [Revised: 08/20/2010] [Accepted: 08/20/2010] [Indexed: 11/19/2022]
Abstract
Tetrahydroberberine (THB) exhibits neuroprotective effects but its targets and underlying mechanisms are largely unknown. Emerging evidence indicates that ATP-sensitive potassium (K(ATP)) channels in the substantia nigra pars compacta (SNc) promote Parkinson disease (PD) pathogenesis, thus blocking K(ATP) channels may protect neurons against neuronal degeneration. In the present study, we tested a hypothesis that THB blocks K(ATP) channels in dopaminergic (DA) neurons acutely dissociated from rat SNc. Using perforated patch-clamp recording in current-clamp mode, the functional K(ATP) channels can be opened by persistent perfusion of rotenone, an inhibitor of complex I of the mitochondrial respiratory chain. Bath-application of THB reversibly blocks opened K(ATP) channels in a concentration-dependent manner, which is comparable to a classical K(ATP) channel blocker, Tol. Compared to THB analogs, l-stepholidine (l-SPD) or l-tetrahydropalmatine (l-THP), THB exhibits more profound blockade in K(ATP) channels. In addition, exposure of THB alone to the recorded neuron increases action potential firing, and THB also restores rotenone-induced membrane hyperpolarization in the presence of dopamine D2 receptor antagonist (sulpiride), suggesting that THB exhibits an excitatory effect on SNc DA neurons through the block of K(ATP) channels. Collectively, the blockade of neuronal K(ATP) channels by THB in SNc DA neurons is a novel pharmacological mechanism of THB, which may contribute to its neuroprotective effects in PD.
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Affiliation(s)
- Chen Wu
- Division of Neurology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, 350 West Thomas Road, Phoenix, AZ 85013, USA
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Mysterious alpha6-containing nAChRs: function, pharmacology, and pathophysiology. Acta Pharmacol Sin 2009; 30:740-51. [PMID: 19498417 DOI: 10.1038/aps.2009.63] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Neuronal nicotinic acetylcholine receptors (nAChRs) are the superfamily of ligand-gated ion channels and widely expressed throughout the central and peripheral nervous systems. nAChRs play crucial roles in modulating a wide range of higher cognitive functions by mediating presynaptic, postsynaptic, and extrasynaptic signaling. Thus far, nine alpha (alpha2-alpha10) and three beta (beta2, beta3, and beta4) subunits have been identified in the CNS, and these subunits assemble to form a diversity of functional nAChRs. Although alpha4beta2- and alpha7-nAChRs are the two major functional nAChR types in the CNS, alpha6*-nAChRs are abundantly expressed in the midbrain dopaminergic (DAergic) system, including mesocorticolimbic and nigrostriatal pathways, and particularly present in presynaptic nerve terminals. Recently, functional and pharmacological profiles of alpha6*-nAChRs have been assessed with the use of alpha6 subunit blockers such as alpha-conotoxin MII and PIA, and also by using alpha6 subunit knockout mice. By modulating DA release in the nucleus accumbens (NAc) and modulating GABA release onto DAergic neurons in the ventral tegmental area (VTA), alpha6*-nAChRs may play important roles in the mediation of nicotine reward and addiction. Furthermore, alpha6*-nAChRs in the nigrostriatal DAergic system may be promising targets for selective preventative treatment of Parkinson's disease (PD). Thus, alpha6*-nAChRs may hold promise for future clinical treatment of human disorders, such as nicotine addiction and PD. In this review, we mainly focus on the recent advances in the understanding of alpha6*-nAChR function, pharmacology and pathophysiology.
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