1
|
Kings E, Ioannidis K, Grant JE, Chamberlain SR. A systematic review of the cognitive effects of the COMT inhibitor, tolcapone, in adult humans. CNS Spectr 2024; 29:166-175. [PMID: 38487834 DOI: 10.1017/s1092852924000130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
OBJECTIVE The catechol-o-methyltransferase (COMT) inhibitor tolcapone constitutes a potentially useful probe of frontal cortical dopaminergic function. The aim of this systematic review was to examine what is known of effects of tolcapone on human cognition in randomized controlled studies. METHODS The study protocol was preregistered on the Open Science Framework. A systematic review was conducted using PubMed to identify relevant randomized controlled trials examining the effects of tolcapone on human cognition. Identified articles were then screened against inclusion and exclusion criteria. RESULTS Of the 22 full-text papers identified, 13 randomized control trials were found to fit the pre-specified criteria. The most consistent finding was that tolcapone modulated working memory; however, the direction of effect appeared to be contingent on the COMT polymorphism (more consistent evidence of improvement in Val-Val participants). There were insufficient nature and number of studies for meta-analysis. CONCLUSION The cognitive improvements identified upon tolcapone administration, in some studies, are likely to be due to the level of dopamine in the prefrontal cortex being shifted closer to its optimum, per an inverted U model of prefrontal function. However, the results should be interpreted cautiously due to the small numbers of studies. Given the centrality of cortical dopamine to understanding human cognition, studies using tolcapone in larger samples and across a broader set of cognitive domains would be valuable. It would also be useful to explore the effects of different dosing regimens (different doses; and single versus repeated administration).
Collapse
Affiliation(s)
- Emilia Kings
- Faculty of Medicine, University of Southampton, Southampton, UK
| | - Konstantinos Ioannidis
- Department of Psychiatry, Faculty of Medicine, University of Southampton, Southampton, UK
- Southern Health NHS Foundation Trust (Southern Gambling Service and Specialist Clinic for Impulsive-Compulsive Disorders), Southampton, UK
| | - Jon E Grant
- Department of Psychiatry, University of Chicago, Chicago, IL, USA
| | - Samuel R Chamberlain
- Department of Psychiatry, Faculty of Medicine, University of Southampton, Southampton, UK
- Southern Health NHS Foundation Trust (Southern Gambling Service and Specialist Clinic for Impulsive-Compulsive Disorders), Southampton, UK
| |
Collapse
|
2
|
Wu W, Lu X, Zhang L, Hong D. Effectiveness and safety of different catechol-o-methyl transferase inhibitors for patients with parkinson's disease: Systematic review and network meta-analysis. Clin Neurol Neurosurg 2024; 239:108189. [PMID: 38437773 DOI: 10.1016/j.clineuro.2024.108189] [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: 01/13/2023] [Revised: 07/26/2023] [Accepted: 02/20/2024] [Indexed: 03/06/2024]
Abstract
BACKGROUND Levodopa treatment requires the addition of other drugs, such as catechol-O-methyl transferase (COMT) inhibitors, to alleviate motor fluctuations in advanced parkinson's disease (PD). However, the optimal strategy, including the type and dose of COMT inhibitors remains unknown. This systematic review and network meta-analysis aimed to assess the efficacy and safety of different COMT inhibitors and for treating PD patients. METHODS PubMed, Embase, Cochrane Library and Web of Science were screened up to November 20, 2022. Randomized controlled trials (RCTs) of COMT inhibitors (entacapone, opicapone, tolcapone) for PD patients were included. Eligible outcomes were total ON-time, rate of ON-time >1 h, total daily dose of levodopa therapy, mean change from baseline to final follow up in Unified Parkinson's Disease Rating Scale (UPDRS) part III scores, adverse events and dyskinesia. Network meta-analyses integrated direct and indirect evidence with placebo as a common comparator. RESULTS We identified 18 studies with 7564 patients. Opicapone, entacapone, and tolcapone could increase total ON-time when compared with placebo. However, opicapone (25 mg, MD 4.0, 95%CrI: 1.1-7.5) and opicapone (50 mg, MD 5.1, 95%CrI: 2.2-8.7) statistically significant increase the total ON-time. opicapone and entacapone could increase the rate of ON-time >1 h when compared with placebo. Only opicapone (5 mg) showed no statistically significant with placebo (OR 1.4, 95%CrI: 0.74-2.4). We found that opicapone (50 mg, SURCA, 0.796) is the best option compared with other treatments. TOL (200 mg) was ranked highest in the rank probability test for total daily dose of levodopa therapy, followed by OPI (50 mg), TOL (400 mg) and TOL (100 mg) in order. SUCRA rankings identified TOL (200 mg) as the most likely therapy for increasing adverse events (SUCRA 27.19%), followed by TOL (400 mg, SUCRA 27.20%) and OPI (5 mg, SUCRA 30.81%). The SUCRA probabilities were 91.6%, 75.2%, 67.9%, 59.3%, 45.6%, 41.1%, 35.1%, 24.6% and 9.4% for PLA, TOL (400 mg), ENT (100 mg), ENT (200 mg), OPI (5 mg), TOL (100 mg), OPI (25 mg), OPI (50 mg), and TOL (200 mg) respectively. CONCLUSION In conclusion, opicapone (50 mg) may be a better choice for treatment PD when compared with other COMT inhibitors.
Collapse
Affiliation(s)
- Wenshuo Wu
- Zhejiang Chinese Medical University, 548th Binwen Road, Hangzhou 310053, PR China
| | - Xiaohui Lu
- Zhejiang Chinese Medical University, 548th Binwen Road, Hangzhou 310053, PR China
| | - Liping Zhang
- The First School of Medicine, Zhejiang Chinese Medical University, 548th Binwen Road, Hangzhou 310053, PR China.
| | - Du Hong
- The First School of Medicine, Zhejiang Chinese Medical University, 548th Binwen Road, Hangzhou 310053, PR China.
| |
Collapse
|
3
|
Hjazi A, Ahsan M, Alghamdi MI, Kareem AK, Al-Saidi DN, Qasim MT, Romero-Parra RM, Zabibah RS, Ramírez-Coronel AA, Mustafa YF, Hosseini-Fard SR, Karampoor S, Mirzaei R. Unraveling the impact of 27-hydroxycholesterol in autoimmune diseases: Exploring promising therapeutic approaches. Pathol Res Pract 2023; 248:154737. [PMID: 37542860 DOI: 10.1016/j.prp.2023.154737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 08/07/2023]
Abstract
The role of 27-hydroxycholesterol (27-OHC) in autoimmune diseases has become a subject of intense research in recent years. This oxysterol, derived from cholesterol, has been identified as a significant player in modulating immune responses and inflammation. Its involvement in autoimmune pathogenesis has drawn attention to its potential as a therapeutic target for managing autoimmune disorders effectively. 27-OHC, an oxysterol derived from cholesterol, has emerged as a key player in modulating immune responses and inflammatory processes. It exerts its effects through various mechanisms, including activation of nuclear receptors, interaction with immune cells, and modulation of neuroinflammation. Additionally, 27-OHC has been implicated in the dysregulation of lipid metabolism, neurotoxicity, and blood-brain barrier (BBB) disruption. Understanding the intricate interplay between 27-OHC and autoimmune diseases, particularly neurodegenerative disorders, holds promise for developing targeted therapeutic strategies. Additionally, emerging evidence suggests that 27-OHC may interact with specific receptors and transcription factors, thus influencing gene expression and cellular processes in autoimmune disorders. Understanding the intricate mechanisms by which 27-OHC influences immune dysregulation and tissue damage in autoimmune diseases is crucial for developing targeted therapeutic interventions. Further investigations into the molecular pathways and signaling networks involving 27-OHC are warranted to unravel its full potential as a therapeutic target in autoimmune diseases, thereby offering new avenues for disease intervention and management.
Collapse
Affiliation(s)
- Ahmed Hjazi
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Maria Ahsan
- King Edward Medical University Lahore, Pakistan
| | - Mohammed I Alghamdi
- Department of Computer Science, Al-Baha University, Al-Baha City, Kingdom of Saudi Arabia
| | - A K Kareem
- Biomedical Engineering Department, Al-Mustaqbal University College, Babylon, Iraq
| | - Dahlia N Al-Saidi
- Department of Medical Laboratories Technology, AL-Nisour University College, Baghdad, Iraq
| | - Maytham T Qasim
- Department of Anesthesia, College of Health and Medical Technology, Al-Ayen University, Thi-Qar, Iraq
| | | | - Rahman S Zabibah
- Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq
| | - Andrés Alexis Ramírez-Coronel
- Health and Behavior Research Group (HBR), Psychometry and Ethology Laboratory, Catholic University of Cuenca, Ecuador; University of Palermo, Buenos Aires, Argentina; Research group in educational statistics, National University of Education, Azogues, Ecuador; Epidemiology and Biostatistics Research Group, CES University, Colombia
| | - Yasser Fakri Mustafa
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Mosul, Mosul 41001, Iraq
| | - Seyed Reza Hosseini-Fard
- Department of Biochemistry, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Sajad Karampoor
- Gastrointestinal and Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran.
| | - Rasoul Mirzaei
- Venom and Biotherapeutics Molecules Lab, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran.
| |
Collapse
|
4
|
Xu T, Wang Q, Yang Z, Yi L, Wang JS, Lu W, Ying J, Wu XF. Supported Palladium-Catalyzed Carbonylative Synthesis of Diaryl Ketones from Aryl Bromides and Arylboronic Acids. Chem Asian J 2021; 16:2027-2030. [PMID: 34107162 DOI: 10.1002/asia.202100540] [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: 05/19/2021] [Revised: 06/09/2021] [Indexed: 12/16/2022]
Abstract
A palladium supported on graphitic carbon nitride (Pd/g-C3 N4 ) catalyzed carbonylative reaction of aryl bromides and arylboronic acids by has been developed for the construction of diaryl ketones. Using benzene-1,3,5-triyl triformate (TFBen) as the CO source, the reaction proceeded well to give various diaryl ketones in moderate to good yields.
Collapse
Affiliation(s)
- Tiefeng Xu
- National Engineering Lab for Textile Fiber Materials & Processing Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
| | - Qi Wang
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
| | - Zeyi Yang
- National Engineering Lab for Textile Fiber Materials & Processing Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
| | - Lili Yi
- National Engineering Lab for Textile Fiber Materials & Processing Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
| | - Jian-Shu Wang
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
| | - Wangyang Lu
- National Engineering Lab for Textile Fiber Materials & Processing Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
| | - Jun Ying
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
| | - Xiao-Feng Wu
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, Liaoning, P. R. China.,Leibniz-Institut für Katalyse e. V. an der Universität Rostock, Albert-Einstein-Straβe 29a, 18059, Rostock, Germany
| |
Collapse
|
5
|
Xiang K, Zhang S, Liu L, Huang T, Tang Z, Li C, Xu K, Chen T. Tunable C–H arylation and acylation of azoles with carboxylic acids by Pd/Cu cooperative catalysis. Org Chem Front 2021. [DOI: 10.1039/d1qo00380a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Direct C–H arylation and acylation of azoles with carboxylic acids are achieved selectively through Pd/Cu cooperative catalysis: biaryls are generated selectively with dppp as ligand, while biaryl ketones are obtained with high selectivity using dpph or Ph2PCy as ligand.
Collapse
Affiliation(s)
- Kang Xiang
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources
- Hainan Provincial Key Lab of Fine Chem
- Hainan Provincial Fine Chemical Engineering Research Center
- Hainan University
- Haikou
| | - Shuo Zhang
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources
- Hainan Provincial Key Lab of Fine Chem
- Hainan Provincial Fine Chemical Engineering Research Center
- Hainan University
- Haikou
| | - Long Liu
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources
- Hainan Provincial Key Lab of Fine Chem
- Hainan Provincial Fine Chemical Engineering Research Center
- Hainan University
- Haikou
| | - Tianzeng Huang
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources
- Hainan Provincial Key Lab of Fine Chem
- Hainan Provincial Fine Chemical Engineering Research Center
- Hainan University
- Haikou
| | - Zhi Tang
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources
- Hainan Provincial Key Lab of Fine Chem
- Hainan Provincial Fine Chemical Engineering Research Center
- Hainan University
- Haikou
| | - Chunya Li
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources
- Hainan Provincial Key Lab of Fine Chem
- Hainan Provincial Fine Chemical Engineering Research Center
- Hainan University
- Haikou
| | - Kaiqiang Xu
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources
- Hainan Provincial Key Lab of Fine Chem
- Hainan Provincial Fine Chemical Engineering Research Center
- Hainan University
- Haikou
| | - Tieqiao Chen
- Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources
- Hainan Provincial Key Lab of Fine Chem
- Hainan Provincial Fine Chemical Engineering Research Center
- Hainan University
- Haikou
| |
Collapse
|
6
|
Mehyar N, Mashhour A, Islam I, Gul S, Adedeji AO, Askar AS, Boudjelal M. Using in silico modelling and FRET-based assays in the discovery of novel FDA-approved drugs as inhibitors of MERS-CoV helicase. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2021; 32:51-70. [PMID: 33401979 DOI: 10.1080/1062936x.2020.1857437] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 11/25/2020] [Indexed: 06/12/2023]
Abstract
A Förster resonance energy transfer (FRET)-based assay was used to screen the FDA-approved compound library against the MERS-CoV helicase, an essential enzyme for virus replication within the host cell. Five compounds inhibited the helicase activity with submicromolar potencies (IC50, 0.73-1.65 µM) and ten compounds inhibited the enzyme with micromolar potencies (IC50, 19.6-502 µM). The molecular operating environment (MOE) was used to dock the identified inhibitors on the MERS-CoV helicase nucleotide binding. Strong inhibitors docked well in the nucleotide-binding site and established interactions with some of the essential residues. There was a reasonable correlation between the observed IC50 values and the MOE docking scores of the strong inhibitors (r 2 = 0.74), indicating the ability of the in silico docking model to predict the binding of strong inhibitors. In silico docking could be a useful complementary tool used with the FRET-based assay to predict new MERS-CoV helicase inhibitors. The identified inhibitors could potentially be used in the clinical development of new antiviral treatment for MERS-CoV and other coronavirus related diseases, including coronavirus disease 2019 (COVID-19).
Collapse
Affiliation(s)
- N Mehyar
- King Abdullah International Medical Research Centre, King Saud Bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs , Riyadh, Saudi Arabia
| | - A Mashhour
- King Abdullah International Medical Research Centre, King Saud Bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs , Riyadh, Saudi Arabia
| | - I Islam
- King Abdullah International Medical Research Centre, King Saud Bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs , Riyadh, Saudi Arabia
| | - S Gul
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME - ScreeningPort , Hamburg, Germany
| | - A O Adedeji
- Department of Pathology and Population Medicine, College of Veterinary Medicine, Midwestern University , Glendale, Arizona, USA
| | - A S Askar
- King Abdullah International Medical Research Centre, King Saud Bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs , Riyadh, Saudi Arabia
| | - M Boudjelal
- King Abdullah International Medical Research Centre, King Saud Bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs , Riyadh, Saudi Arabia
| |
Collapse
|
7
|
Urso D, Chaudhuri KR, Qamar MA, Jenner P. Improving the Delivery of Levodopa in Parkinson's Disease: A Review of Approved and Emerging Therapies. CNS Drugs 2020; 34:1149-1163. [PMID: 33146817 DOI: 10.1007/s40263-020-00769-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/26/2020] [Indexed: 01/28/2023]
Abstract
Levodopa is the most effective drug for the treatment of Parkinson's disease, but its use as an oral medication is complicated by its erratic absorption, extensive metabolism and short plasma half-life. On long-term use and with disease progression, there is a high incidence of motor and non-motor complications, which remain a major clinical and research challenge. It is widely accepted that levodopa needs to be administered using formulations that result in good and consistent bioavailability and the physiologically relevant and continuous formation of dopamine in the brain to maximise its efficacy while avoiding and reversing 'wearing off' and dyskinesia. However, the physicochemical properties of levodopa along with its pharmacokinetic and pharmacodynamic profile make it difficult to deliver the drug in a manner that fulfils these criteria. In this review, we examine the problems associated with the administration of levodopa in Parkinson's disease and how the use of novel technologies and delivery devices is leading to a more consistent and sustained levodopa delivery with the aim of controlling motor function as well as non-motor symptoms.
Collapse
Affiliation(s)
- Daniele Urso
- Department of Neurosciences, King's College London, Institute of Psychiatry, Psychology and Neuroscience, De Crespigny Park, London, SE5 8AF, UK. .,Parkinson's Foundation Centre of Excellence, King's College Hospital, Denmark Hill, London, UK.
| | - K Ray Chaudhuri
- Department of Neurosciences, King's College London, Institute of Psychiatry, Psychology and Neuroscience, De Crespigny Park, London, SE5 8AF, UK.,Parkinson's Foundation Centre of Excellence, King's College Hospital, Denmark Hill, London, UK
| | - Mubasher A Qamar
- Department of Neurosciences, King's College London, Institute of Psychiatry, Psychology and Neuroscience, De Crespigny Park, London, SE5 8AF, UK.,Parkinson's Foundation Centre of Excellence, King's College Hospital, Denmark Hill, London, UK
| | - Peter Jenner
- Institute of Pharmaceutical Sciences, Faculty of Life Sciences and Medicine, King's College, London, UK
| |
Collapse
|
8
|
Hussain N, Chhalodia AK, Ahmed A, Mukherjee D. Recent Advances in Metal‐Catalyzed Carbonylation Reactions by Using Formic Acid as CO Surrogate. ChemistrySelect 2020. [DOI: 10.1002/slct.202003395] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Nazar Hussain
- Natural Product Chemistry Division CSIR-Indian Institute of Integrative Medicine India
| | - Anuj Kumar Chhalodia
- Natural Product Chemistry Division CSIR-Indian Institute of Integrative Medicine India
| | - Ajaz Ahmed
- Natural Product Chemistry Division CSIR-Indian Institute of Integrative Medicine India
| | - Debaraj Mukherjee
- Natural Product Chemistry Division CSIR-Indian Institute of Integrative Medicine India
| |
Collapse
|
9
|
You S, Yan C, Zhang R, Cai M. A convenient and practical heterogeneous palladium‐catalyzed carbonylative Suzuki coupling of aryl iodides with formic acid as carbon monoxide source. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4650] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Shengyong You
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 China
- Institute of Applied Chemistry, Jiangxi Academy of Sciences Nanchang 330029 China
| | - Chenyu Yan
- Affiliated Middle School of Jiangxi Normal University Nanchang 330022 China
| | - Rongli Zhang
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecules, Ministry of Education and College of Chemistry and Chemical EngineeringJiangxi Normal University Nanchang 330022 China
| |
Collapse
|
10
|
Large-scale computational drug repositioning to find treatments for rare diseases. NPJ Syst Biol Appl 2018; 4:13. [PMID: 29560273 PMCID: PMC5847522 DOI: 10.1038/s41540-018-0050-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/22/2018] [Accepted: 02/03/2018] [Indexed: 11/08/2022] Open
Abstract
Rare, or orphan, diseases are conditions afflicting a small subset of people in a population. Although these disorders collectively pose significant health care problems, drug companies require government incentives to develop drugs for rare diseases due to extremely limited individual markets. Computer-aided drug repositioning, i.e., finding new indications for existing drugs, is a cheaper and faster alternative to traditional drug discovery offering a promising venue for orphan drug research. Structure-based matching of drug-binding pockets is among the most promising computational techniques to inform drug repositioning. In order to find new targets for known drugs ultimately leading to drug repositioning, we recently developed eMatchSite, a new computer program to compare drug-binding sites. In this study, eMatchSite is combined with virtual screening to systematically explore opportunities to reposition known drugs to proteins associated with rare diseases. The effectiveness of this integrated approach is demonstrated for a kinase inhibitor, which is a confirmed candidate for repositioning to synapsin Ia. The resulting dataset comprises 31,142 putative drug-target complexes linked to 980 orphan diseases. The modeling accuracy is evaluated against the structural data recently released for tyrosine-protein kinase HCK. To illustrate how potential therapeutics for rare diseases can be identified, we discuss a possibility to repurpose a steroidal aromatase inhibitor to treat Niemann-Pick disease type C. Overall, the exhaustive exploration of the drug repositioning space exposes new opportunities to combat orphan diseases with existing drugs. DrugBank/Orphanet repositioning data are freely available to research community at https://osf.io/qdjup/.
Collapse
|
11
|
Wu FP, Peng JB, Qi X, Wu XF. Palladium-Catalyzed Carbonylative Homocoupling of Aryl Iodides for the Synthesis of Symmetrical Diaryl Ketones with Formic Acid. ChemCatChem 2017. [DOI: 10.1002/cctc.201701185] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Fu-Peng Wu
- Department of Chemistry; Zhejiang Sci-Tech University; Hangzhou Zhejiang 310018 P.R. China
| | - Jin-Bao Peng
- Department of Chemistry; Zhejiang Sci-Tech University; Hangzhou Zhejiang 310018 P.R. China
| | - Xinxin Qi
- Department of Chemistry; Zhejiang Sci-Tech University; Hangzhou Zhejiang 310018 P.R. China
| | - Xiao-Feng Wu
- Department of Chemistry; Zhejiang Sci-Tech University; Hangzhou Zhejiang 310018 P.R. China
- Institution Leibniz-Institut für Katalyse e.V. an der; Universität Rostock; Albert-Einstein-Straße 29a Rostock 18059 Germany
| |
Collapse
|
12
|
Hao W, Liu H, Yin L, Cai M. Phosphine-Free, Heterogeneous Palladium-Catalyzed Atom-Efficient Carbonylative Cross-Coupling of Triarylbismuths with Aryl Iodides: Synthesis of Biaryl Ketones. J Org Chem 2016; 81:4244-51. [DOI: 10.1021/acs.joc.6b00570] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wenyan Hao
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Haiyi Liu
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Lin Yin
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| |
Collapse
|
13
|
Turkoglu G, Berber H. Novel formazan derivatives containing phenylsulfanyl and carbonyl units: synthesis, optical and electrochemical properties. RSC Adv 2016. [DOI: 10.1039/c6ra23008c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
New phenylsulfanyl and aryl carbonyl containing formazan derivatives 4a–4h and 5a–5h have been developed, and investigated the effect of substituents on their photophysical and electrochemical properties.
Collapse
Affiliation(s)
- Gulsen Turkoglu
- Department of Chemistry
- Faculty of Science
- Anadolu University
- 26470 Eskisehir
- Turkey
| | - Halil Berber
- Department of Chemistry
- Faculty of Science
- Anadolu University
- 26470 Eskisehir
- Turkey
| |
Collapse
|
14
|
Babu KR, Khan FA. An unusual formation of diarylmethane scaffolds from 4-(halomethyl)cyclohex-2-enone derivatives. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.04.128] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
15
|
Wang X, Liu FD, Tu HY, Zhang AD. One-pot synthesis of diarylmethanones through palladium-catalyzed sequential coupling and aerobic oxidation of aryl bromides with acetophenone as a latent carbonyl donor. J Org Chem 2014; 79:6554-62. [PMID: 24969086 DOI: 10.1021/jo5010185] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A one-pot palladium-catalyzed synthesis of symmetrical and unsymmetrical diarylmethanones using acetophenone and aryl bromides as raw materials has been developed. In this reaction, acetophenone acts as a latent carbonyl donor and two pathways of palladium-catalyzed sequential coupling and aerobic oxidation are identified. The reaction is applicable to a spectrum of substrates and delivers the products in moderate to good yields. This method can be used for the synthesis of ketoprofen, a nonsteroidal anti-inflammatory drug, in a two-step procedure and 45% overall yield.
Collapse
Affiliation(s)
- Xing Wang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, College of Chemistry, Central China Normal University , Wuhan 430079, People's Republic of China
| | | | | | | |
Collapse
|
16
|
Leegwater-Kim J, Waters C. Role of tolcapone in the treatment of Parkinson’s disease. Expert Rev Neurother 2014; 7:1649-57. [DOI: 10.1586/14737175.7.12.1649] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
17
|
Moser SS, Besler-Panos W. Pharmacotherapy for Parkinson's disease: current options, promising future therapies. JAAPA 2006; 19:38-44. [PMID: 16918085 DOI: 10.1097/01720610-200608000-00007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Sharon S Moser
- University of Detroit, Mercy College of Health Professions, Physician Assistant Program, Detroit, Mich, USA
| | | |
Collapse
|
18
|
Abstract
Tolcapone (Tasmar) is a selective, reversible inhibitor of peripheral and central catechol-O-methyltransferase (COMT). Results of well designed studies indicate that oral tolcapone is an effective adjunct to levodopa plus a peripheral dopa-decarboxylase inhibitor (DDCI) in patients with fluctuating Parkinson's disease. Tolcapone significantly improves levodopa-induced motor fluctuations and significantly reduces levodopa requirements. The drug is generally well tolerated, with the most commonly occurring adverse events being dopaminergic related. Thus, tolcapone is a useful option in patients with fluctuating Parkinson's disease who are receiving levodopa/DDCI and are not responding to, or are not candidates for, other adjunctive treatments.
Collapse
|
19
|
Offen D, Panet H, Galili-Mosberg R, Melamed E. Catechol-O-methyltransferase decreases levodopa toxicity in vitro. Clin Neuropharmacol 2001; 24:27-30. [PMID: 11290879 DOI: 10.1097/00002826-200101000-00006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The purpose of this study was to examine the effects of 3-O-methylation by catechol-O-methyltransferase (COMT) on the toxicity of levodopa in neuronal cultures. High concentrations of levodopa are toxic in vitro. Therefore, there is concern that long-term treatment with levodopa in patients with Parkinson's disease might accelerate the rate of degeneration of nigrostriatal neurons. However, recent studies have suggested that, while levodopa is harmful in vitro, it may not be toxic in vivo. A possible defense mechanism is by means of metabolic shunting of levodopa excess to 3-O-methyldopa by COMT in peripheral and central nervous system tissues. In this study we examine whether the use of COMT inhibitor, which reduced the levels of 3-O-methyldopa, affect levodopa toxicity. Mice cerebellar granule neurons, PC12, and neuroblastoma cells were used, and their viability following exposure to levodopa and COMT with and without tolcapone, a COMT inhibitor, was measured by neutral red staining. Auto-oxidation of levodopa was evaluated using a spectrophotometer (690 nm). We found that 3-O-methyldopa, unlike levodopa, was not toxic to all cells examined. Addition of purified COMT to levodopa prevented its auto-oxidation and markedly attenuated its cytotoxicity in vitro. Additional tolcapone reversed the protective effect of COMT. The agent 3-O-methyldopa is not toxic to cell cultures. Catechol-O-methyltransferase attenuates toxicity of levodopa in vitro by its metabolism to nontoxic 3-O-methyldopa.
Collapse
Affiliation(s)
- D Offen
- Department of Neurology, Rabin Medical Center, Beilinson Campus, Tel Aviv University Sackler School of Medicine, Petah Tikva, 49100 Israel
| | | | | | | |
Collapse
|
20
|
|