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Kumar Villuri B, Desai UR. Synthesis and Reactivity of Masked Organic Sulfates. Chemistry 2024; 30:e202402268. [PMID: 39024030 DOI: 10.1002/chem.202402268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 07/17/2024] [Accepted: 07/18/2024] [Indexed: 07/20/2024]
Abstract
Nature offers a variety of structurally unique, sulfated endobiotics including sulfated glycosaminoglycans, sulfated tyrosine peptides, sulfated steroids/bile acids/catecholamines. Sulfated molecules display a large number of biological activities including antithrombotic, antimicrobial, anticancer, anti-inflammatory, and others, which arise from modulation of intracellular signaling and enhanced in vivo retention of certain hormones. These characteristics position sulfated molecules very favorably as drug-like agents. However, few have reached the clinic. Major hurdles exist in realizing sulfated molecules as drugs. This state-of-the-art has been transformed through recent works on the development of sulfate masking technologies for both alkyl (sulfated carbohydrates, sulfated steroids) and aryl (sTyr-bearing peptides/proteins, sulfated flavonoids) sulfates. This review compiles the literature on different strategies implemented for different types of sulfate groups. Starting from early efforts in protection of sulfate groups to the design of newer SuFEx, trichloroethyl, and gem-dimethyl-based protection technologies, this review presents the evolution and application of concepts in realizing highly diverse, sulfated molecules as candidate drugs and/or prodrugs. Overall, the newer strategies for sulfate masking and demasking are likely to greatly enhance the design and development of sulfated molecules as non-toxic drugs of the future.
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Affiliation(s)
- Bharath Kumar Villuri
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia, 23298, United States
- Institute for Structural Biology, Drug Discovery and Development, Virginia Commonwealth University, Richmond, Virginia, 23219, United States
| | - Umesh R Desai
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia, 23298, United States
- Institute for Structural Biology, Drug Discovery and Development, Virginia Commonwealth University, Richmond, Virginia, 23219, United States
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2
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Kumar P, Parveen, Raj N, Kumar M, Fakhri KU, Kumar S, Khan AA, Alanazi AM, Solanki R, Harsha, Manzoor N, Kapur MK. Natural products from Streptomyces spp. as potential inhibitors of the major factors (holoRdRp and nsp13) for SARS-CoV-2 replication: an in silico approach. Arch Microbiol 2024; 206:88. [PMID: 38305873 DOI: 10.1007/s00203-023-03820-5] [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: 10/19/2023] [Revised: 12/27/2023] [Accepted: 12/27/2023] [Indexed: 02/03/2024]
Abstract
The COVID-19 pandemic caused unprecedented damage to humanity, and while vaccines have been developed, they are not fully effective against the SARS-CoV-2 virus. Limited targeted drugs, such as Remdesivir and Paxlovid, are available against the virus. Hence, there is an urgent need to explore and develop new drugs to combat COVID-19. This study focuses on exploring microbial natural products from soil-isolated bacteria Streptomyces sp. strain 196 and RI.24 as a potential source of new targeted drugs against SARS-CoV-2. Molecular docking studies were performed on holoRdRp and nsp13, two key factors responsible for virus replication factor. Our in silico studies, K-252-C aglycone indolocarbazole alkaloid (K252C) and daunorubicin were found to have better binding affinities than the respective control drugs, with K252C exhibiting binding energy of - 9.1 kcal/mol with holoRdRp and - 9.2 kcal/mol with nsp13, and daunorubicin showing binding energy at - 8.1 kcal/mol with holoRdRp and - 9.3 kcal/mol with nsp13. ADMET analysis, MD simulation, and MM/GBSA studies indicated that K252C and daunorubicin have the potential to be developed as targeted drugs against SARS-CoV-2. The study concludes that K252C and daunorubicin are potential lead compounds that might suppress the inhibition of SARS-CoV-2 replication among the tested microbial compounds and could be developed as targeted drugs against COVID-19. In the future, further in vitro studies are required to validate these findings.
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Affiliation(s)
- Prateek Kumar
- Department of Zoology, University of Allahabad, Uttar Pradesh, Prayagraj, 211 002, India.
| | - Parveen
- Medical Mycology Laboratory, Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India
| | - Nafis Raj
- Medical Mycology Laboratory, Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India
| | - Munendra Kumar
- Department of Zoology, Rajiv Gandhi University, Doimukh, 791112, Arunachal Pradesh, India
| | - Khalid Umar Fakhri
- Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India
| | - Sugandh Kumar
- School of Medicine, University of San Francisco California (UCSF), San Francisco, CA, 95115, USA
| | - Azmat Ali Khan
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Amer M Alanazi
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Renu Solanki
- Deen Dayal Upadhyaya College, University of Delhi, New Delhi, 110 078, India
| | - Harsha
- Microbial Technology Lab, Acharya Narendra Dev College, University of Delhi, New Delhi, 110 019, India
| | - Nikhat Manzoor
- Medical Mycology Laboratory, Department of Biosciences, Jamia Millia Islamia, New Delhi, 110025, India
| | - Monisha Khanna Kapur
- Microbial Technology Lab, Acharya Narendra Dev College, University of Delhi, New Delhi, 110 019, India.
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Akhilesh, Menon A, Agrawal S, Chouhan D, Gadepalli A, Das B, Kumar R, Singh N, Tiwari V. Virtual screening and molecular dynamics investigations using natural compounds against autotaxin for the treatment of chronic pain. J Biomol Struct Dyn 2024:1-21. [PMID: 38285669 DOI: 10.1080/07391102.2024.2308761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 01/17/2024] [Indexed: 01/31/2024]
Abstract
Chronic pain is a common and debilitating condition with a huge social and economic burden worldwide. Currently, available drugs in clinics are not adequately effective and possess a variety of severe side effects leading to treatment withdrawal and poor quality of life. Recent findings highlight the potential role of autotaxin (ATX) as a promising novel target for chronic pain management, extending beyond its previously established involvement in arthritis and other neurological disorders, such as Alzheimer's disease. In the present study, we used a virtual screening strategy by targeting ATX against commercially available natural compounds (enamine- phenotypic screening library) to identify the potential inhibitors for the treatment of chronic pain. After initial identification using molecular docking based virtual screening, molecular mechanics (MM/GBSA), ADMET profiling and molecular dynamics simulation were performed to verify top hits. The computational screening resulted in the identification of fifteen top scoring structurally diverse hits that have free energy of binding (ΔG) values in the range of -25.792 (for compound Enamine_1850) to -74.722 Kcal/mol (for compound Enamine_1687). Moreover, the top-scoring hits have favourable ADME properties as calculated using in-silico algorithms. Additionally, the molecular dynamics simulation revealed the stable nature of protein-ligand interaction and provided information about amino acid residues involved in binding. This study led to the identification of potential autotaxin inhibitors with favourable pharmacokinetic properties. Identified hits may further be investigated for their safety and efficacy potential using in-vitro and in-vivo models of chronic pain.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Akhilesh
- Neuroscience & Pain Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
| | - Arjun Menon
- Department of Biotechnology and Bioengineering, Institute of Advance Research, Gandhinagar, India
| | - Somesh Agrawal
- Neuroscience & Pain Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
| | - Deepak Chouhan
- Neuroscience & Pain Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
| | - Anagha Gadepalli
- Neuroscience & Pain Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
| | - Bhanuranjan Das
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
| | - Rajnish Kumar
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
| | - Neeru Singh
- Department of Biotechnology and Bioengineering, Institute of Advance Research, Gandhinagar, India
| | - Vinod Tiwari
- Neuroscience & Pain Research Laboratory, Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
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Olmedo DA, Durant-Archibold AA, López-Pérez JL, Medina-Franco JL. Design and Diversity Analysis of Chemical Libraries in Drug Discovery. Comb Chem High Throughput Screen 2024; 27:502-515. [PMID: 37409545 DOI: 10.2174/1386207326666230705150110] [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: 04/05/2023] [Revised: 05/30/2023] [Accepted: 05/30/2023] [Indexed: 07/07/2023]
Abstract
Chemical libraries and compound data sets are among the main inputs to start the drug discovery process at universities, research institutes, and the pharmaceutical industry. The approach used in the design of compound libraries, the chemical information they possess, and the representation of structures, play a fundamental role in the development of studies: chemoinformatics, food informatics, in silico pharmacokinetics, computational toxicology, bioinformatics, and molecular modeling to generate computational hits that will continue the optimization process of drug candidates. The prospects for growth in drug discovery and development processes in chemical, biotechnological, and pharmaceutical companies began a few years ago by integrating computational tools with artificial intelligence methodologies. It is anticipated that it will increase the number of drugs approved by regulatory agencies shortly.
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Affiliation(s)
- Dionisio A Olmedo
- Centro de Investigaciones Farmacognósticas de la Flora Panameña (CIFLORPAN), Facultad de Farmacia, Universidad de Panamá, Ciudad de Panamá, Apartado, 0824-00178, Panamá
- Sistema Nacional de Investigación (SNI), Secretaria Nacional de Ciencia, Tecnología e Innovación (SENACYT), Ciudad del Saber, Clayton, Panamá
| | - Armando A Durant-Archibold
- Centro de Biodiversidad y Descubrimiento de Drogas, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Apartado, 0843-01103, Panamá
- Departamento de Bioquímica, Facultad de Ciencias Naturales, Exactas y Tecnología, Universidad de Panamá, Ciudad de Panamá, Panamá
| | - José Luis López-Pérez
- CESIFAR, Departamento de Farmacología, Facultad de Medicina, Universidad de Panamá, Ciudad de Panamá, Panamá
- Departamento de Ciencias Farmacéuticas, Facultad de Farmacia, Universidad de Salamanca, Avda. Campo Charro s/n, 37071 Salamanca, España
| | - José Luis Medina-Franco
- DIFACQUIM Grupo de Investigación, Departamento de Farmacia, Escuela de Química, Universidad Nacional Autónoma de México, Ciudad de México, Apartado, 04510, México
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Koh CMM, Ping LSY, Xuan CHH, Theng LB, San HS, Palombo EA, Wezen XC. A data-driven machine learning approach for discovering potent LasR inhibitors. Bioengineered 2023; 14:2243416. [PMID: 37552115 PMCID: PMC10411317 DOI: 10.1080/21655979.2023.2243416] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 07/26/2023] [Accepted: 07/28/2023] [Indexed: 08/09/2023] Open
Abstract
The rampant spread of multidrug-resistant Pseudomonas aeruginosa strains severely threatens global health. This severity is compounded against the backdrop of a stagnating antibiotics development pipeline. Moreover, with many promising therapeutics falling short of expectations in clinical trials, targeting the las quorum sensing (QS) system remains an attractive therapeutic strategy to combat P. aeruginosa infection. Thus, our primary goal was to develop a drug prediction algorithm using machine learning to identify potent LasR inhibitors. In this work, we demonstrated using a Multilayer Perceptron (MLP) algorithm boosted with AdaBoostM1 to discriminate between active and inactive LasR inhibitors. The optimal model performance was evaluated using 5-fold cross-validation and test sets. Our best model achieved a 90.7% accuracy in distinguishing active from inactive LasR inhibitors, an area under the Receiver Operating Characteristic Curve value of 0.95, and a Matthews correlation coefficient value of 0.81 when evaluated using test sets. Subsequently, we deployed the model against the Enamine database. The top-ranked compounds were further evaluated for their target engagement activity using molecular docking studies, Molecular Dynamics simulations, MM-GBSA analysis, and Free Energy Landscape analysis. Our data indicate that several of our chosen top hits showed better ligand-binding affinities than naringenin, a competitive LasR inhibitor. Among the six top hits, five of these compounds were predicted to be LasR inhibitors that could be used to treat P. aeruginosa-associated infections. To our knowledge, this study provides the first assessment of using an MLP-based QSAR model for discovering potent LasR inhibitors to attenuate P. aeruginosa infections.
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Affiliation(s)
- Christabel Ming Ming Koh
- Faculty of Engineering, Computing, and Science, Swinburne University of Technology, Sarawak, Malaysia
| | - Lilian Siaw Yung Ping
- Faculty of Engineering, Computing, and Science, Swinburne University of Technology, Sarawak, Malaysia
| | - Christopher Ha Heng Xuan
- Faculty of Engineering, Computing, and Science, Swinburne University of Technology, Sarawak, Malaysia
| | - Lau Bee Theng
- Faculty of Engineering, Computing, and Science, Swinburne University of Technology, Sarawak, Malaysia
| | - Hwang Siaw San
- Faculty of Engineering, Computing, and Science, Swinburne University of Technology, Sarawak, Malaysia
| | - Enzo A. Palombo
- Department of Chemistry and Biotechnology, Swinburne University of Technology, Hawthorn, Victoria, Australia
| | - Xavier Chee Wezen
- Faculty of Engineering, Computing, and Science, Swinburne University of Technology, Sarawak, Malaysia
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Simoben CV, Babiaka SB, Moumbock AFA, Namba-Nzanguim CT, Eni DB, Medina-Franco JL, Günther S, Ntie-Kang F, Sippl W. Challenges in natural product-based drug discovery assisted with in silico-based methods. RSC Adv 2023; 13:31578-31594. [PMID: 37908659 PMCID: PMC10613855 DOI: 10.1039/d3ra06831e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 10/19/2023] [Indexed: 11/02/2023] Open
Abstract
The application of traditional medicine by humans for the treatment of ailments as well as improving the quality of life far outdates recorded history. To date, a significant percentage of humans, especially those living in developing/underprivileged communities still rely on traditional medicine for primary healthcare needs. In silico-based methods have been shown to play a pivotal role in modern pharmaceutical drug discovery processes. The application of these methods in identifying natural product (NP)-based hits has been successful. This is very much observed in many research set-ups that use rationally in silico-based methods in combination with experimental validation techniques. The combination has rendered the use of in silico-based approaches even more popular and successful in the investigation of NPs. However, identifying and proposing novel NP-based hits for experimental validation comes with several challenges such as the availability of compounds by suppliers, the huge task of separating pure compounds from complex mixtures, the quantity of samples available from the natural source to be tested, not to mention the potential ecological impact if the natural source is exhausted. Because most peer-reviewed publications are biased towards "positive results", these challenges are generally not discussed in publications. In this review, we highlight and discuss these challenges. The idea is to give interested scientists in this field of research an idea of what they can come across or should be expecting as well as prompting them on how to avoid or fix these issues.
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Affiliation(s)
- Conrad V Simoben
- Center for Drug Discovery, Faculty of Science, University of Buea P.O. Box 63 Buea CM-00237 Cameroon
- Structural Genomics Consortium, University of Toronto Toronto Ontario M5G 1L7 Canada
- Department of Pharmacology & Toxicology, University of Toronto Toronto Ontario M5S 1A8 Canada
| | - Smith B Babiaka
- Center for Drug Discovery, Faculty of Science, University of Buea P.O. Box 63 Buea CM-00237 Cameroon
- Department of Chemistry, University of Buea Buea Cameroon
- Department of Microbial Bioactive Compounds, Interfaculty Institute for Microbiology and Infection Medicine, University of Tübingen 72076 Tübingen Germany
| | - Aurélien F A Moumbock
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg Freiburg Germany
| | - Cyril T Namba-Nzanguim
- Center for Drug Discovery, Faculty of Science, University of Buea P.O. Box 63 Buea CM-00237 Cameroon
- Department of Chemistry, University of Buea Buea Cameroon
| | - Donatus Bekindaka Eni
- Center for Drug Discovery, Faculty of Science, University of Buea P.O. Box 63 Buea CM-00237 Cameroon
- Department of Chemistry, University of Buea Buea Cameroon
| | - José L Medina-Franco
- DIFACQUIM Research Group, Department of Pharmacy, School of Chemistry, Universidad Nacional Autónoma de México, Avenida Universidad 3000 Mexico City 04510 Mexico
| | - Stefan Günther
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg Freiburg Germany
| | - Fidele Ntie-Kang
- Center for Drug Discovery, Faculty of Science, University of Buea P.O. Box 63 Buea CM-00237 Cameroon
- Department of Chemistry, University of Buea Buea Cameroon
- Institute of Pharmacy, Martin-Luther University Halle-Wittenberg Halle (Saale) Germany
| | - Wolfgang Sippl
- Institute of Pharmacy, Martin-Luther University Halle-Wittenberg Halle (Saale) Germany
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Fakhri S, Moradi SZ, Faraji F, Farhadi T, Hesami O, Iranpanah A, Webber K, Bishayee A. Current advances in nanoformulations of therapeutic agents targeting tumor microenvironment to overcome drug resistance. Cancer Metastasis Rev 2023; 42:959-1020. [PMID: 37505336 DOI: 10.1007/s10555-023-10119-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 06/13/2023] [Indexed: 07/29/2023]
Abstract
The tumor microenvironment (TME) plays a pivotal role in cancer development and progression. In this line, revealing the precise mechanisms of the TME and associated signaling pathways of tumor resistance could pave the road for cancer prevention and efficient treatment. The use of nanomedicine could be a step forward in overcoming the barriers in tumor-targeted therapy. Novel delivery systems benefit from enhanced permeability and retention effect, decreasing tumor resistance, reducing tumor hypoxia, and targeting tumor-associated factors, including immune cells, endothelial cells, and fibroblasts. Emerging evidence also indicates the engagement of multiple dysregulated mediators in the TME, such as matrix metalloproteinase, vascular endothelial growth factor, cytokines/chemokines, Wnt/β-catenin, Notch, Hedgehog, and related inflammatory and apoptotic pathways. Hence, investigating novel multitargeted agents using a novel delivery system could be a promising strategy for regulating TME and drug resistance. In recent years, small molecules from natural sources have shown favorable anticancer responses by targeting TME components. Nanoformulations of natural compounds are promising therapeutic agents in simultaneously targeting multiple dysregulated factors and mediators of TME, reducing tumor resistance mechanisms, overcoming interstitial fluid pressure and pericyte coverage, and involvement of basement membrane. The novel nanoformulations employ a vascular normalization strategy, stromal/matrix normalization, and stress alleviation mechanisms to exert higher efficacy and lower side effects. Accordingly, the nanoformulations of anticancer monoclonal antibodies and conventional chemotherapeutic agents also improved their efficacy and lessened the pharmacokinetic limitations. Additionally, the coadministration of nanoformulations of natural compounds along with conventional chemotherapeutic agents, monoclonal antibodies, and nanomedicine-based radiotherapy exhibits encouraging results. This critical review evaluates the current body of knowledge in targeting TME components by nanoformulation-based delivery systems of natural small molecules, monoclonal antibodies, conventional chemotherapeutic agents, and combination therapies in both preclinical and clinical settings. Current challenges, pitfalls, limitations, and future perspectives are also discussed.
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Affiliation(s)
- Sajad Fakhri
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, 6734667149, Iran
| | - Seyed Zachariah Moradi
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, 6734667149, Iran
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, 6734667149, Iran
| | - Farahnaz Faraji
- Department of Pharmaceutics, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, 6517838678, Iran
| | - Tara Farhadi
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, 6714415153, Iran
| | - Osman Hesami
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, 6734667149, Iran
| | - Amin Iranpanah
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, 6734667149, Iran
| | - Kassidy Webber
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, FL, 34211, USA
| | - Anupam Bishayee
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, FL, 34211, USA.
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Ghanbari-Movahed M, Mondal A, Farzaei MH, Bishayee A. Quercetin- and rutin-based nano-formulations for cancer treatment: A systematic review of improved efficacy and molecular mechanisms. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 97:153909. [PMID: 35092896 DOI: 10.1016/j.phymed.2021.153909] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/11/2021] [Accepted: 12/21/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Natural products, with incredible chemical diversity, have been widely studied for their antitumor potential. Quercetin (QU) and quercetin glycoside (rutin), both polyphenolic flavonoids, stick out amongst the natural products, through various studies. Rutin (RU) and its aglycone (QU) have various biological properties that include antioxidant, anti-inflammatory, and anticarcinogenic activities. However, several side effects have restricted the efficacy of these polyphenolic flavonoids, which makes it necessary to use new strategies involving low and pharmacological doses of QU and RU, either alone or in combination with other anticancer drugs. PURPOSE The aim of this study is to present a comprehensive and critical evaluation of the anticancer ability of different nano-formulations of RU and QU for improved treatment of various malignancies. METHODS Studies were recognized via systematic searches of ScienceDirect, PubMed, and Scopus databases. Eligibility checks were conducted based upon predefined selection criteria. Ninety articles were included in this study. RESULTS There was conclusive evidence for the association between anticancer activity and treatment with RU or QU. Furthermore, studies indicated that nano-formulations of RU and QU have greater anticancer activities in comparison to either agent alone, which leads to increased efficiency for treating cancer. CONCLUSION The results of this systematic review demonstrate the anticancer activities of nano-formulations of RU and QU and their molecular mechanisms through preclinical studies. This paper also attempts to contribute to further research by addressing the current limitations/challenges and proposing additional studies to realize the full potential of RU- and QU-based formulations for cancer treatment.
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Affiliation(s)
- Maryam Ghanbari-Movahed
- Medical Technology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah 6718874414, Iran; Department of Biology, Faculty of Science, University of Guilan, Rasht 4193833697, Iran
| | - Arijit Mondal
- Department of Pharmaceutical Chemistry, Bengal College of Pharmaceutical Technology, Dubrajpur 731 123, India
| | - Mohammad Hosein Farzaei
- Medical Technology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah 6718874414, Iran.
| | - Anupam Bishayee
- College of Osteopathic Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, United States.
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Verma S, Pathak RK. Discovery and optimization of lead molecules in drug designing. Bioinformatics 2022. [DOI: 10.1016/b978-0-323-89775-4.00004-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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Kim TW, Lee HG. Apigenin Induces Autophagy and Cell Death by Targeting EZH2 under Hypoxia Conditions in Gastric Cancer Cells. Int J Mol Sci 2021; 22:ijms222413455. [PMID: 34948250 PMCID: PMC8706813 DOI: 10.3390/ijms222413455] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/07/2021] [Accepted: 12/13/2021] [Indexed: 01/17/2023] Open
Abstract
Hypoxia is a major obstacle to gastric cancer (GC) therapy and leads to chemoresistance as GC cells are frequently exposed to the hypoxia environment. Apigenin, a flavonoid found in traditional medicine, fruits, and vegetables and an HDAC inhibitor, is a powerful anti-cancer agent against various cancer cell lines. However, detailed mechanisms involved in the treatment of GC using APG are not fully understood. In this study, we investigated the biological activity of and molecular mechanisms involved in APG-mediated treatment of GC under hypoxia. APG promoted autophagic cell death by increasing ATG5, LC3-II, and phosphorylation of AMPK and ULK1 and down-regulating p-mTOR and p62 in GC. Furthermore, our results show that APG induces autophagic cell death via the activation of the PERK signaling, indicating an endoplasmic reticulum (ER) stress response. The inhibition of ER stress suppressed APG-induced autophagy and conferred prolonged cell survival, indicating autophagic cell death. We further show that APG induces ER stress- and autophagy-related cell death through the inhibition of HIF-1α and Ezh2 under normoxia and hypoxia. Taken together, our findings indicate that APG activates autophagic cell death by inhibiting HIF-1α and Ezh2 under hypoxia conditions in GC cells.
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Affiliation(s)
- Tae Woo Kim
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
- Department of Preventive Medicine, College of Korean Medicine, Kyung Hee University, 1 Hoegi, Seoul 130-701, Korea
- Department of Biomedicine & Health Sciences, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Department of Biomolecular Science, University of Science and Technology, Daejeon 34113, Korea
- Correspondence: (T.W.K.); (H.G.L.); Tel.: +82-2-961-0329 (T.W.K.); +82-42-860-4182 (H.G.L.); Fax: +82-2-961-1165 (T.W.K.); +82-42-860-4593 (H.G.L.)
| | - Hee Gu Lee
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea
- Department of Biomolecular Science, University of Science and Technology, Daejeon 34113, Korea
- Correspondence: (T.W.K.); (H.G.L.); Tel.: +82-2-961-0329 (T.W.K.); +82-42-860-4182 (H.G.L.); Fax: +82-2-961-1165 (T.W.K.); +82-42-860-4593 (H.G.L.)
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Kamble OS, Khatravath M, Dandela R. Applications of Ethynylanilines as Substrates for Construction of Indoles and Indole‐Substituted Derivatives. ChemistrySelect 2021. [DOI: 10.1002/slct.202101437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Omkar S. Kamble
- Department of Industrial and Engineering Chemistry Institute of Chemical Technology Indian oil Odisha Campus, Kharagpur extension Centre, Mouza, Samantpuri Bhubaneswar 751013 Odisha India
| | - Mahender Khatravath
- Department of Chemistry Central university of South Bihar, Gaya SH-7, Panchanpur Road, Karhara, Post Fatehpur, Gaya Bihar 824236 India
| | - Rambabu Dandela
- Department of Industrial and Engineering Chemistry Institute of Chemical Technology Indian oil Odisha Campus, Kharagpur extension Centre, Mouza, Samantpuri Bhubaneswar 751013 Odisha India
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12
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Junaid M, Akter Y, Siddika A, Nayeem SMA, Nahrin A, Afrose SS, Ezaj MMA, Alam MS. Nature-derived hit, lead, and drug-like small molecules: Current status and future aspects against key target proteins of Coronaviruses. Mini Rev Med Chem 2021; 22:498-549. [PMID: 34353257 DOI: 10.2174/1389557521666210805113231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 04/27/2021] [Accepted: 04/27/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND COVID-19 pandemic, the most unprecedented event of the year 2020, has brought millions of scientists worldwide in a single platform to fight against it. Though several drugs are now in the clinical trial, few vaccines available on the market already but the lack of an effect of those is making the situation worse. AIM OF THE STUDY In this review, we demonstrated comprehensive data of natural antiviral products showing activities against different proteins of Human Coronaviruses (HCoV) that are responsible for its pathogenesis. Furthermore, we categorized the compounds into the hit, lead, and drug based on the IC50/EC50 value, drug-likeness, and lead-likeness test to portray their potentiality to be a drug. We also demonstrated the present status of our screened antiviral compounds with respect to clinical trials and reported the lead compounds that can be promoted to clinical trial against COVID-19. METHODS A systematic search strategy was employed focusing on Natural Products (NPs) with proven activity (in vitro, in vivo, or in silico) against human coronaviruses, in general, and data were gathered from databases like PubMed, Web of Science, Google Scholar, SciVerse, and Scopus. Information regarding clinical trials retrieved from the Clinical Trial database. RESULTS Total "245" natural compounds were identified initially from the literature study. Among them, Glycyrrhizin, Caffeic acid, Curcumin is in phase 3, and Tetrandrine, Cyclosporine, Tacrolimus, Everolimus are in phase 4 clinical trial. Except for Glycyrrhizin, all compounds showed activity against COVID-19. CONCLUSIONS In summary, our demonstrated specific small molecules with lead and drug-like capabilities clarified their position in the drug discovery pipeline and proposed their future research against COVID-19.
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Affiliation(s)
- Md Junaid
- Natural Products Research Division, Advanced Bioinformatics, Computational Biology and Data Science Laboratory. Bangladesh
| | - Yeasmin Akter
- Natural Products Research Division, Advanced Bioinformatics, Computational Biology and Data Science Laboratory. Bangladesh
| | - Aysha Siddika
- Natural Products Research Division, Advanced Bioinformatics, Computational Biology and Data Science Laboratory. Bangladesh
| | - S M Abdul Nayeem
- Natural Products Research Division, Advanced Bioinformatics, Computational Biology and Data Science Laboratory. Bangladesh
| | - Afsana Nahrin
- Department of Pharmacy, University of Science and Technology Chittagong. Bangladesh
| | - Syeda Samira Afrose
- Natural Products Research Division, Advanced Bioinformatics, Computational Biology and Data Science Laboratory. Bangladesh
| | - Md Muzahid Ahmed Ezaj
- Natural Products Research Division, Advanced Bioinformatics, Computational Biology and Data Science Laboratory. Bangladesh
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13
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Wang Z, Hui C, Xie Y. Natural STAT3 inhibitors: A mini perspective. Bioorg Chem 2021; 115:105169. [PMID: 34333418 DOI: 10.1016/j.bioorg.2021.105169] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 07/03/2021] [Accepted: 07/09/2021] [Indexed: 12/22/2022]
Abstract
Signal transducer and activator of transcription 3 (STAT3) plays pivotal role in several cellular processes such as cell proliferation and survival and has been found to be aberrantly activated in many cancers. STAT3 is largely believed to be one of the key oncogenes and crucial therapeutic targets. Much research has suggested the leading mechanisms for regulating the STAT3 pathway and its role in promoting tumorigenesis. Therefore, intensive efforts have been devoted to develop potent STAT3 inhibitors and several of them are currently undergoing clinical trials. Nevertheless, many natural products were identified as STAT3 inhibitors but attract less attention compared to the small molecule counterpart. In this review, the development of natural STAT3 inhibitors with an emphasis on their biological profile and chemical synthesis are detailed. The current state of STAT3 inhibitors and the future directions and opportunities for STAT3 inhibitor are discussed.
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Affiliation(s)
- Zhuo Wang
- Southern University of Science and Technology, School of Medicine, Shenzhen 518055, People's Republic of China.
| | - Chunngai Hui
- Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Yusheng Xie
- Department of Pharmacology, School of Basic Medical Sciences, Shandong University, Jinan 250012, China
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14
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Jin Y, Wang Z, Dong AY, Huang YQ, Hao GF, Song BA. Web repositories of natural agents promote pests and pathogenic microbes management. Brief Bioinform 2021; 22:6294160. [PMID: 34098581 DOI: 10.1093/bib/bbab205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 05/10/2021] [Accepted: 05/10/2021] [Indexed: 12/30/2022] Open
Abstract
The grand challenge to meet the increasing demands for food by a rapidly growing global population requires protecting crops from pests. Natural active substances play a significant role in the sustainable pests and pathogenic microbes management. In recent years, natural products- (NPs), antimicrobial peptides- (AMPs), medicinal plant- and plant essential oils (EOs)-related online resources have greatly facilitated the development of pests and pathogenic microbes control agents in an efficient and economical manner. However, a comprehensive comparison, analysis and summary of these existing web resources are still lacking. Here, we surveyed these databases of NPs, AMPs, medicinal plants and plant EOs with insecticidal, antibacterial, antiviral and antifungal activity, and we compared their functionality, data volume, data sources and applicability. We comprehensively discussed the limitation of these web resources. This study provides a toolbox for bench scientists working in the pesticide, botany, biomedical and pharmaceutical engineering fields. The aim of the review is to hope that these web resources will facilitate the discovery and development of potential active ingredients of pests and pathogenic microbes control agents.
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Affiliation(s)
- Yin Jin
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang 550025, P. R. China
| | - Zheng Wang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang 550025, P. R. China
| | - An-Yu Dong
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang 550025, P. R. China
| | - Yuan-Qin Huang
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang 550025, P. R. China
| | - Ge-Fei Hao
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang 550025, P. R. China
| | - Bao-An Song
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Center for Research and Development of Fine Chemicals, Guizhou University, Guiyang 550025, P. R. China
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15
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Wang Z, Hui C. Contemporary advancements in the semi-synthesis of bioactive terpenoids and steroids. Org Biomol Chem 2021; 19:3791-3812. [PMID: 33949606 DOI: 10.1039/d1ob00448d] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Many natural products have intriguing biological properties that arise from their fascinating chemical structures. However, the intrinsic complexity of the structural skeleton and the reactive functional groups on natural products pose tremendous challenges to chemical syntheses. Semi-synthesis uses chemical compounds isolated from natural sources as the starting materials to produce other novel compounds with distinct chemical and medicinal properties. In particular, advancements in various types of sp3 C-H bond functionalization reactions and skeletal rearrangement methods have contributed to the re-emergence of semi-synthesis as an efficient approach for the synthesis of structurally complex bioactive natural products. Here, we begin with a brief discussion of several bioactive natural products that were obtained via a semi-synthetic approach between 2008 and 2015 and we then discuss in-depth contemporary advancements in the semi-synthesis of bioactive terpenoids and steroids reported during 2016-2020.
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Affiliation(s)
- Zhuo Wang
- Southern University of Science and Technology, School of Medicine, Shenzhen, 518055, People's Republic of China.
| | - Chunngai Hui
- Division of Life Science, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong 999077, China
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16
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Ghanbari-Movahed M, Kaceli T, Mondal A, Farzaei MH, Bishayee A. Recent Advances in Improved Anticancer Efficacies of Camptothecin Nano-Formulations: A Systematic Review. Biomedicines 2021; 9:480. [PMID: 33925750 PMCID: PMC8146681 DOI: 10.3390/biomedicines9050480] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 04/21/2021] [Accepted: 04/24/2021] [Indexed: 12/12/2022] Open
Abstract
Camptothecin (CPT), a natural plant alkaloid, has indicated potent antitumor activities via targeting intracellular topoisomerase I. The promise that CPT holds in therapies is restricted through factors that include lactone ring instability and water insolubility, which limits the drug oral solubility and bioavailability in blood plasma. Novel strategies involving CPT pharmacological and low doses combined with nanoparticles have indicated potent anticancer activity in vitro and in vivo. This systematic review aims to provide a comprehensive and critical evaluation of the anticancer ability of nano-CPT in various cancers as a novel and more efficient natural compound for drug development. Studies were identified through systematic searches of PubMed, Scopus, and ScienceDirect. Eligibility checks were performed based on predefined selection criteria. Eighty-two papers were included in this systematic review. There was strong evidence for the association between antitumor activity and CPT treatment. Furthermore, studies indicated that CPT nano-formulations have higher antitumor activity in comparison to free CPT, which results in enhanced efficacy for cancer treatment. The results of our study indicate that CPT nano-formulations are a potent candidate for cancer treatment and may provide further support for the clinical application of natural antitumor agents with passive targeting of tumors in the future.
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Affiliation(s)
- Maryam Ghanbari-Movahed
- Medical Technology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran;
- Department of Biology, Faculty of Science, University of Guilan, Rasht 4193833697, Iran
| | - Tea Kaceli
- Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, USA;
| | - Arijit Mondal
- Department of Pharmaceutical Chemistry, Bengal College of Pharmaceutical Technology, Dubrajpur 731123, India;
| | - Mohammad Hosein Farzaei
- Medical Technology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran;
| | - Anupam Bishayee
- Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, USA;
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17
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Attah AF, Fagbemi AA, Olubiyi O, Dada-Adegbola H, Oluwadotun A, Elujoba A, Babalola CP. Therapeutic Potentials of Antiviral Plants Used in Traditional African Medicine With COVID-19 in Focus: A Nigerian Perspective. Front Pharmacol 2021; 12:596855. [PMID: 33981214 PMCID: PMC8108136 DOI: 10.3389/fphar.2021.596855] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 01/20/2021] [Indexed: 12/12/2022] Open
Abstract
The coronavirus disease 2019 (COVID-19) pandemic is caused by an infectious novel strain of coronavirus known as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) which was earlier referred to as 2019-nCoV. The respiratory disease is the most consequential global public health crisis of the 21st century whose level of negative impact increasingly experienced globally has not been recorded since World War II. Up till now, there has been no specific globally authorized antiviral drug, vaccines, supplement or herbal remedy available for the treatment of this lethal disease except preventive measures, supportive care and non-specific treatment options adopted in different countries via divergent approaches to halt the pandemic. However, many of these interventions have been documented to show some level of success particularly the Traditional Chinese Medicine while there is paucity of well reported studies on the impact of the widely embraced Traditional African Medicines (TAM) adopted so far for the prevention, management and treatment of COVID-19. We carried out a detailed review of publicly available data, information and claims on the potentials of indigenous plants used in Sub-Saharan Africa as antiviral remedies with potentials for the prevention and management of COVID-19. In this review, we have provided a holistic report on evidence-based antiviral and promising anti-SARS-CoV-2 properties of African medicinal plants based on in silico evidence, in vitro assays and in vivo experiments alongside the available data on their mechanistic pharmacology. In addition, we have unveiled knowledge gaps, provided an update on the effort of African Scientific community toward demystifying the dreadful SARS-CoV-2 micro-enemy of man and have documented popular anti-COVID-19 herbal claims emanating from the continent for the management of COVID-19 while the risk potentials of herb-drug interaction of antiviral phytomedicines when used in combination with orthodox drugs have also been highlighted. This review exercise may lend enough credence to the potential value of African medicinal plants as possible leads in anti-COVID-19 drug discovery through research and development.
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Affiliation(s)
- Alfred Francis Attah
- Department of Pharmacognosy and Drug Development, Faculty of Pharmaceutical Sciences, University of Ilorin, Ilorin, Nigeria
| | - Adeshola Adebayo Fagbemi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Ibadan, Ibadan, Nigeria
| | - Olujide Olubiyi
- Department of Pharmaceutical Chemistry, Obafemi Awolowo University, Ile-Ife, Nigeria
- Institute of Biological Information Processing, Structural Biochemistry (IBI-7), Forschungszentrum Jülich, Jülich, Germany
| | - Hannah Dada-Adegbola
- Department of Medical Microbiology and Parasitology, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | | | - Anthony Elujoba
- Department of Pharmacognosy, Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Chinedum Peace Babalola
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Ibadan, Ibadan, Nigeria
- Centre for Drug Discovery, Development and Production, University of Ibadan, Ibadan, Nigeria
- College of Basic Medical Sciences, Chrisland University, Abeokuta, Nigeria
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18
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Alonso F, Galilea A, Mañez PA, Acebedo SL, Cabrera GM, Otero M, Barquero AA, Ramírez JA. Beyond Pseudo-natural Products: Sequential Ugi/Pictet-Spengler Reactions Leading to Steroidal Pyrazinoisoquinolines That Trigger Caspase-Independent Death in HepG2 Cells. ChemMedChem 2021; 16:1945-1955. [PMID: 33682316 DOI: 10.1002/cmdc.202100052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 02/27/2021] [Indexed: 01/05/2023]
Abstract
In this work, we describe how stereochemically complex polycyclic compounds can be generated by applying a synthetic sequence comprising an intramolecular Ugi reaction followed by a Pictet-Spengler cyclization on steroid-derived scaffolds. The resulting compounds, which combine a fragment derived from a natural product and a scaffold not found in nature. are both structurally distinct and globally similar to natural products at the same time, and interrogate an alternative region of the chemical space. One of the new compounds showed significant antiproliferative activity on HepG2 cells through a caspase-independent cell-death mechanism, an appealing feature when new antitumor compounds are searched.
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Affiliation(s)
- Fernando Alonso
- Departamento de Química Orgánica, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, 1428, Argentina.,Unidad de Microanálisis y Métodos Físicos Aplicados a Química Orgánica (UMYMFOR), CONICET - Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, 1428, Argentina)
| | - Agustín Galilea
- Departamento de Química Orgánica, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, 1428, Argentina.,Unidad de Microanálisis y Métodos Físicos Aplicados a Química Orgánica (UMYMFOR), CONICET - Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, 1428, Argentina)
| | - Pau Arroyo Mañez
- Departamento de Química Orgánica, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, 1428, Argentina.,Departamento de Química Orgánica de la Facultad de Farmacia, Universitat de València, Valencia, 46100, Spain
| | - Sofía L Acebedo
- Departamento de Química Orgánica, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, 1428, Argentina.,Unidad de Microanálisis y Métodos Físicos Aplicados a Química Orgánica (UMYMFOR), CONICET - Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, 1428, Argentina)
| | - Gabriela M Cabrera
- Departamento de Química Orgánica, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, 1428, Argentina.,Unidad de Microanálisis y Métodos Físicos Aplicados a Química Orgánica (UMYMFOR), CONICET - Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, 1428, Argentina)
| | - Marcelo Otero
- Departamento de Física, Facultad de Ciencias Exactas y Naturales, CONICET - Universidad de Buenos Aires and Instituto de Física de Buenos Aires (IFIBA), Ciudad Universitaria, Buenos Aires, 1428, Argentina
| | - Andrea A Barquero
- Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires. Departamento de Química Biológica, Ciudad Universitaria, Buenos Aires, 1428, Argentina.,Instituto de Quimica Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET - Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, 1428, Argentina
| | - Javier A Ramírez
- Departamento de Química Orgánica, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, 1428, Argentina.,Unidad de Microanálisis y Métodos Físicos Aplicados a Química Orgánica (UMYMFOR), CONICET - Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, 1428, Argentina)
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19
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Pollo LAE, Martin EF, Machado VR, Cantillon D, Wildner LM, Bazzo ML, Waddell SJ, Biavatti MW, Sandjo LP. Search for Antimicrobial Activity Among Fifty-Two Natural and Synthetic Compounds Identifies Anthraquinone and Polyacetylene Classes That Inhibit Mycobacterium tuberculosis. Front Microbiol 2021; 11:622629. [PMID: 33537021 PMCID: PMC7847937 DOI: 10.3389/fmicb.2020.622629] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 12/29/2020] [Indexed: 11/13/2022] Open
Abstract
Drug-resistant tuberculosis threatens to undermine global control programs by limiting treatment options. New antimicrobial drugs are required, derived from new chemical classes. Natural products offer extensive chemical diversity and inspiration for synthetic chemistry. Here, we isolate, synthesize and test a library of 52 natural and synthetic compounds for activity against Mycobacterium tuberculosis. We identify seven compounds as antimycobacterial, including the natural products isobavachalcone and isoneorautenol, and a synthetic chromene. The plant-derived secondary metabolite damnacanthal was the most active compound with the lowest minimum inhibitory concentration of 13.07 μg/mL and a favorable selectivity index value. Three synthetic polyacetylene compounds demonstrated antimycobacterial activity, with the lowest MIC of 17.88 μg/mL. These results suggest new avenues for drug discovery, expanding antimicrobial compound chemistries to novel anthraquinone and polyacetylene scaffolds in the search for new drugs to treat drug-resistant bacterial diseases.
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Affiliation(s)
- Luiz A E Pollo
- Programa de Pós-Graduação em Farmácia, CCS, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Erlon F Martin
- Programa de Pós-Graduação em Farmácia, CCS, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Vanessa R Machado
- Programa de Pós-Graduação em Farmácia, CCS, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Daire Cantillon
- Department of Global Health and Infection, Brighton and Sussex Medical School, University of Sussex, Brighton, United Kingdom
| | - Leticia Muraro Wildner
- Department of Global Health and Infection, Brighton and Sussex Medical School, University of Sussex, Brighton, United Kingdom
| | - Maria Luiza Bazzo
- Programa de Pós-Graduação em Farmácia, CCS, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Simon J Waddell
- Department of Global Health and Infection, Brighton and Sussex Medical School, University of Sussex, Brighton, United Kingdom
| | - Maique W Biavatti
- Programa de Pós-Graduação em Farmácia, CCS, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Louis P Sandjo
- Programa de Pós-Graduação em Química, CFM, Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis, Brazil
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20
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Abstract
The focus article discusses the innovation of hypervalent(iii) iodine regarding skeletal rearrangement, cycloaddition and cyclization, and sp3 C–H functionalization in natural product synthesis.
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Affiliation(s)
- Zhuo Wang
- Southern University of Science and Technology
- School of Medicine
- Shenzhen
- People's Republic of China
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21
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Rawat P, Rawat P, Kumar P, Kumari S, Kumar A, Pal M. Identification and characterization of compounds from methanolic extracts of Launaea procumbens by gas chromatography-MS, liquid chromatography-electrospray ionization-MS/MS, and ultra-performance liquid chromatography-electrospray ionization-quad time of flight/MS. Pharmacogn Mag 2021. [DOI: 10.4103/pm.pm_333_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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22
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Motamen S, Quinn RJ. Analysis of Approaches to Anti-tuberculosis Compounds. ACS OMEGA 2020; 5:28529-28540. [PMID: 33195903 PMCID: PMC7658936 DOI: 10.1021/acsomega.0c03177] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 10/15/2020] [Indexed: 05/04/2023]
Abstract
Mycobacterium tuberculosis (Mtb) remains a deadly pathogen two decades after the announcement of tuberculosis (TB) as a global health emergency by the World Health Organization. Medicinal chemistry efforts to synthesize potential drugs to shorten TB treatments have not always been successful. Here, we analyze physiochemical properties of 39 TB drugs and 1271 synthetic compounds reported in 40 publications from 2006 to early 2020. We also propose a new TB space of physiochemical properties that may provide more appropriate guidelines for design of anti-TB drugs.
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Affiliation(s)
- Sara Motamen
- Griffith Institute for Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia
| | - Ronald J Quinn
- Griffith Institute for Drug Discovery, Griffith University, Nathan, Queensland 4111, Australia
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23
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Kumar R, Bidgood CL, Levrier C, Gunter JH, Nelson CC, Sadowski MC, Davis RA. Synthesis of a Unique Psammaplysin F Library and Functional Evaluation in Prostate Cancer Cells by Multiparametric Quantitative Single Cell Imaging. JOURNAL OF NATURAL PRODUCTS 2020; 83:2357-2366. [PMID: 32691595 DOI: 10.1021/acs.jnatprod.0c00121] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The spirooxepinisoxazoline alkaloid psammaplysin F (1) was selected as a scaffold for the generation of a unique screening library for both drug discovery and chemical biology research. Large-scale extraction and isolation chemistry was performed on a marine sponge (Hyattella sp.) collected from the Great Barrier Reef in order to acquire >200 mg of the desired bromotyrosine-derived alkaloidal scaffold. Parallel solution-phase semisynthesis was employed to generate a series of psammaplysin-based urea (2-9) and amide analogues (10-11) in low to moderate yields. The chemical structures of all analogues were characterized using NMR and MS data. The absolute configuration of psammaplysin F and all semisynthetic analogues was determined as 6R, 7R by comparison of ECD data with literature values. All compounds (1-11) were evaluated for their effect on cell cycle distribution and changes to cancer metabolism in LNCaP prostate cancer cells using a multiparametric quantitative single-cell imaging approach. These investigations identified that in LNCaP cells psammaplysin F and some urea analogues caused loss of mitochondrial membrane potential, fragmentation of the mitochondrial tubular network, chromosome misalignment, and cell cycle arrest in mitosis.
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Affiliation(s)
- Rohitesh Kumar
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD 4111, Australia
| | - Charles L Bidgood
- Queensland University of Technology, Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Translational Research Institute, Brisbane, QLD 4102, Australia
| | - Claire Levrier
- Queensland University of Technology, Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Translational Research Institute, Brisbane, QLD 4102, Australia
| | - Jennifer H Gunter
- Queensland University of Technology, Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Translational Research Institute, Brisbane, QLD 4102, Australia
| | - Colleen C Nelson
- Queensland University of Technology, Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Translational Research Institute, Brisbane, QLD 4102, Australia
| | - Martin C Sadowski
- Queensland University of Technology, Australian Prostate Cancer Research Centre-Queensland, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Translational Research Institute, Brisbane, QLD 4102, Australia
| | - Rohan A Davis
- Griffith Institute for Drug Discovery, School of Environment and Science, Griffith University, Brisbane, QLD 4111, Australia
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24
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Gimenes L, Luna-Dulcey L, Batista JM, Dos Santos FM, Popolin CP, Cominetti MR, Fernandes JB, Staerk D. Structure Elucidation and Absolute Configuration Determination of Nortriterpenoids from Picramnia glazioviana. JOURNAL OF NATURAL PRODUCTS 2020; 83:1859-1875. [PMID: 32530627 DOI: 10.1021/acs.jnatprod.0c00045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this study, HPLC-PDA-HRMS-SPE-NMR data were used for initial analysis of the CH2Cl2 fraction of an EtOH extract of the leaves of Picramnia glazioviana. The HRMS, UV, and NMR data obtained from the HPLC-PDA-HRMS-SPE-NMR analysis were used to direct semipreparative HPLC isolation toward nortriterpenoids, which resulted in the isolation of 18 new and highly oxygenated nortriterpenoids (1-3, 5-10, 12-19, and 21), named picravianes C-T. Their structures were determined on the basis of analysis of UV, HRMS, and 2D NMR spectroscopic data, including determination of the relative configuration on the basis of coupling pattern analysis and nuclear Overhauser effect correlations. The absolute configurations of compounds 7, 9, 10, 14, 15, 17, 18, 19, and 21 were assigned using electronic circular dichroism data, and the cytotoxicity of compounds 6, 10, 14, 16, 17, 18, 19, and 21 was evaluated against MDA-MB-231 triple-negative breast cancer, SKBR-3 Her2-overexpressing breast cancer, and A549 lung cancer cells lines. The isolated compounds contain a hitherto undescribed modification of the terminal backbone and/or E-ring, and a possible biosynthetic pathway for their formation is proposed.
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Affiliation(s)
- Leila Gimenes
- Department of Chemistry, Federal University of Sao Carlos (UFSCar), 13565-905 Sao Carlos, SP, Brazil
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Liany Luna-Dulcey
- Department of Gerontology, Federal University of Sao Carlos, 13565-905, Sao Carlos SP, Brazil
| | - Joao M Batista
- Institute of Science and Technology, Federal University of Sao Paulo, 12231-280 Sao Jose dos Campos, SP, Brazil
| | - Fernando M Dos Santos
- Department of Organic Chemistry, Chemistry Institute, Fluminense Federal University (UFF), 24110-090 Niteroi, RJ, Brazil
| | - Cecília P Popolin
- Department of Gerontology, Federal University of Sao Carlos, 13565-905, Sao Carlos SP, Brazil
| | - Marcia R Cominetti
- Department of Gerontology, Federal University of Sao Carlos, 13565-905, Sao Carlos SP, Brazil
| | - Joao B Fernandes
- Department of Chemistry, Federal University of Sao Carlos (UFSCar), 13565-905 Sao Carlos, SP, Brazil
| | - Dan Staerk
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
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25
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Simoben CV, Ntie-Kang F, Robaa D, Sippl W. Case studies on computer-based identification of natural products as lead molecules. PHYSICAL SCIENCES REVIEWS 2020. [DOI: 10.1515/psr-2018-0119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
AbstractThe development and application of computer-aided drug design/discovery (CADD) techniques (such as structured-base virtual screening, ligand-based virtual screening and neural networks approaches) are on the point of disintermediation in the pharmaceutical drug discovery processes. The application of these CADD methods are standing out positively as compared to other experimental approaches in the identification of hits. In order to venture into new chemical spaces, research groups are exploring natural products (NPs) for the search and identification of new hits and more efficient leads as well as the repurposing of approved NPs. The chemical space of NPs is continuously increasing as a result of millions of years of evolution of species and these data are mainly stored in the form of databases providing access to scientists around the world to conduct studies using them. Investigation of these NP databases with the help of CADD methodologies in combination with experimental validation techniques is essential to identify and propose new drug molecules. In this chapter, we highlight the importance of the chemical diversity of NPs as a source for potential drugs as well as some of the success stories of NP-derived candidates against important therapeutic targets. The focus is on studies that applied a healthy dose of the emerging CADD methodologies (structure-based, ligand-based and machine learning).
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Affiliation(s)
- Conrad V. Simoben
- Department of Medicinal Chemistry (AG Sippl), Institute of Pharmacy, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 3, 06120Halle (Saale), Germany
| | - Fidele Ntie-Kang
- Department of Chemistry, University of Buea, P. O. Box 63, Buea, Cameroon
- Department of Medicinal Chemistry (AG Sippl), Institute of Pharmacy, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 3, 06120Halle (Saale), Germany
| | - Dina Robaa
- Department of Medicinal Chemistry (AG Sippl), Institute of Pharmacy, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 3, 06120Halle (Saale), Germany
| | - Wolfgang Sippl
- Department of Medicinal Chemistry (AG Sippl), Institute of Pharmacy, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 3, 06120Halle (Saale), Germany
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26
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Inuki S. [Elucidation of Biological Mechanisms Using Synthetic Natural Products and Their Derivatives]. YAKUGAKU ZASSHI 2020; 140:455-470. [PMID: 32238625 DOI: 10.1248/yakushi.19-00206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Natural products are useful sources in the search for biochemical probes and drug leads because of their unique biological activities. However, synthetic studies or functional analyses of polycyclic complex natural products or conjugated lipids (e.g., glycolipids) are often hampered because of their synthesis and handling are challenging. On the basis of rational designs, synthetic studies, and chemical modifications, natural products need to be optimized to more potent compounds with improved activities, selectivities and/or physical properties. We have been synthesizing natural products and their derivatives for the elucidation of their biological mechanisms and discovery of drug leads. This review describes three topics for developing functional compounds derived from natural products for prospective involvement in pharmaceutical research: 1) direct construction of the ergot alkaloid scaffold by palladium catalyzed domino cyclization of amino allenes; 2) identification of novel sphingosine kinase inhibitors through a structure-activity relationship study of jaspine B; and 3) design, synthesis and biological evaluation of novel CD1d glycolipid ligands containing modified lipid moieties.
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Affiliation(s)
- Shinsuke Inuki
- Graduate School of Pharmaceutical Sciences, Kyoto University
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27
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Ntie-Kang F, Nyongbela KD, Ayimele GA, Shekfeh S. “Drug-likeness” properties of natural compounds. PHYSICAL SCIENCES REVIEWS 2019. [DOI: 10.1515/psr-2018-0169] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Our previous work was focused on the fundamental physical and chemical concepts behind “drug-likeness” and “natural product (NP)-likeness”. Herein, we discuss further details on the concepts of “drug-likeness”, “lead-likeness” and “NP-likeness”. The discussion will first focus on NPs as drugs, then a discussion of previous studies in which the complexities of the scaffolds and chemical space of naturally occurring compounds have been compared with synthetic, semisynthetic compounds and the Food and Drug Administration-approved drugs. This is followed by guiding principles for designing “drug-like” natural product libraries for lead compound discovery purposes. In addition, we present a tool for measuring “NP-likeness” of compounds and a brief presentation of machine-learning approaches. A binary quantitative structure–activity relationship for classifying drugs from nondrugs and natural compounds from nonnatural ones is also described. While the studies add to the plethora of recently published works on the “drug-likeness” of NPs, it no doubt increases our understanding of the physicochemical properties that make NPs fall within the ranges associated with “drug-like” molecules.
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28
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Wang W, Qin JJ, Li X, Tao G, Wang Q, Wu X, Zhou J, Zi X, Zhang R. Prevention of prostate cancer by natural product MDM2 inhibitor GS25: in vitro and in vivo activities and molecular mechanisms. Carcinogenesis 2019; 39:1026-1036. [PMID: 29762656 DOI: 10.1093/carcin/bgy063] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 04/11/2018] [Accepted: 05/09/2018] [Indexed: 12/28/2022] Open
Abstract
Prostate cancer remains a major health problem in the USA and worldwide. There is an urgent need to develop novel approaches to preventing primary and metastatic prostate cancer. We have identified 25-OCH3-protopanaxadiol (GS25), the most active ginsenoside that has been identified so far; it has potent activity against human cancers, including prostate cancer. However, it has not been proven if GS25 could be a safe and effective agent for cancer prevention. In this study, we used the TRAMP model and clearly demonstrated that GS25 inhibited prostate tumorigenesis and metastasis with minimal host toxicity. Mechanistically, GS25 directly bound to the RING domain of MDM2, disrupted MDM2-MDMX binding and induced MDM2 protein degradation, resulting in strong inhibition of prostate cancer cell growth and metastasis, independent of p53 and androgen receptor status. In conclusion, our in vitro and in vivo data support the potential use of GS25 in prevention of primary and metastatic prostate cancer.
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Affiliation(s)
- Wei Wang
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX, USA.,Center for Drug Discovery, University of Houston, Houston, TX, USA.,Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
| | - Jiang-Jiang Qin
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX, USA.,Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
| | - Xin Li
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX, USA.,Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
| | - Guanyu Tao
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX, USA.,Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
| | - Qiang Wang
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA.,Department of Molecular Cell Biology and Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xuming Wu
- Nantong Center for Disease Control and Prevention, Nantong, P.R. China
| | - Jianwei Zhou
- Department of Molecular Cell Biology and Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xiaolin Zi
- Department of Urology, University of California, Irvine, CA, USA.,Department of Pharmacology, University of California, Irvine, CA, USA
| | - Ruiwen Zhang
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX, USA.,Center for Drug Discovery, University of Houston, Houston, TX, USA.,Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX, USA
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29
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Liu M, Karuso P, Feng Y, Kellenberger E, Liu F, Wang C, Quinn RJ. Is it time for artificial intelligence to predict the function of natural products based on 2D-structure. MEDCHEMCOMM 2019; 10:1667-1677. [PMID: 31803392 PMCID: PMC6836574 DOI: 10.1039/c9md00128j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Accepted: 06/04/2019] [Indexed: 12/17/2022]
Abstract
Currently, there is no established technique that allows the function of a compound produced by nature to be predicted by looking at its 2-dimensional chemical structure. One of chemistry's grand challenges: to find a function for every known metabolite. We explore the opportunity for Artificial Intelligence to provide rationale interrogation of metabolites to predict their function.
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Affiliation(s)
- Miaomiao Liu
- Griffith Institute for Drug Discovery , Griffith University , Brisbane , Qld 4111 , Australia . ; Tel: +61 7 3735 6006
| | - Peter Karuso
- Department of Molecular Sciences , Macquarie University , Sydney , NSW 2109 , Australia
| | - Yunjiang Feng
- Griffith Institute for Drug Discovery , Griffith University , Brisbane , Qld 4111 , Australia . ; Tel: +61 7 3735 6006
| | - Esther Kellenberger
- Laboratory of Therapeutic Innovation , Medalis Drug Discovery Center , University of Strasbourg , Illkirch , France
| | - Fei Liu
- Department of Molecular Sciences , Macquarie University , Sydney , NSW 2109 , Australia
| | - Can Wang
- School of Information and Communication Technology , Griffith University , Gold Coast campus , Qld 4222 , Australia
| | - Ronald J Quinn
- Griffith Institute for Drug Discovery , Griffith University , Brisbane , Qld 4111 , Australia . ; Tel: +61 7 3735 6006
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30
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Rapid profiling of alkaloid analogues in Sinomenii Caulis by an integrated characterization strategy and quantitative analysis. J Pharm Biomed Anal 2019; 174:376-385. [DOI: 10.1016/j.jpba.2019.06.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 05/31/2019] [Accepted: 06/07/2019] [Indexed: 12/15/2022]
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31
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Kashyap D, Tuli HS, Yerer MB, Sharma A, Sak K, Srivastava S, Pandey A, Garg VK, Sethi G, Bishayee A. Natural product-based nanoformulations for cancer therapy: Opportunities and challenges. Semin Cancer Biol 2019; 69:5-23. [PMID: 31421264 DOI: 10.1016/j.semcancer.2019.08.014] [Citation(s) in RCA: 210] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 08/10/2019] [Accepted: 08/12/2019] [Indexed: 01/09/2023]
Abstract
Application of natural product-based nanoformulations for the treatment of different human diseases, such as cancer, is an emerging field. The conventional cancer therapeutic modalities, including surgery, chemotherapy, immunotherapy, radiotherapy has limited achievements. A larger number of drawbacks are associated with these therapies, including damage to proliferating healthy tissues, structural deformities, systemic toxicity, long-term side effects, resistance to the drug by tumor cells, and psychological problems. The advent of nanotechnology in cancer therapeutics is recent; however, it has progressed and transformed the field of cancer treatment at a rapid rate. Nanotherapeutics have promisingly overcome the limitations of conventional drug delivery system, i.e., low aqueous solubility, low bioavailability, multidrug resistance, and non-specificity. Specifically, natural product-based nanoformulations are being intentionally studied in different model systems. Where it is found that these nanoformulations has more proximity and reduced side effects. The nanoparticles can specifically target tumor cells, enhancing the specificity and efficacy of cancer therapeutic modalities which in turn improves patient response and survival. The integration of phytotherapy and nanotechnology in the clinical setting may improve pharmacological response and better clinical outcome of patients.
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Affiliation(s)
- Dharambir Kashyap
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh - 160 012, Punjab, India
| | - Hardeep Singh Tuli
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala - 133 207, Haryana, India.
| | - Mukerrem Betul Yerer
- Department of Pharmacology, Faculty of Pharmacy, University of Erciyes, Kayseri 38039, Turkey
| | - Ajay Sharma
- Department of Chemistry, Career Point University, Tikker-Kharwarian, Hamirpur - 176 041, Himachal Pradesh, India
| | | | - Saumya Srivastava
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Allahabad - 211 004, Uttar Pradesh, India
| | - Anjana Pandey
- Department of Biotechnology, Motilal Nehru National Institute of Technology Allahabad, Allahabad - 211 004, Uttar Pradesh, India
| | - Vivek Kumar Garg
- Department of Biochemistry, Government Medical College and Hospital, Sector 32, Chandigarh - 160 031, Punjab, India
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117600, Singapore.
| | - Anupam Bishayee
- Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, USA.
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32
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Koulouridi E, Valli M, Ntie-Kang F, Bolzani VDS. A primer on natural product-based virtual screening. PHYSICAL SCIENCES REVIEWS 2019. [DOI: 10.1515/psr-2018-0105] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Abstract
Databases play an important role in various computational techniques, including virtual screening (VS) and molecular modeling in general. These collections of molecules can contain a large amount of information, making them suitable for several drug discovery applications. For example, vendor, bioactivity data or target type can be found when searching a database. The introduction of these data resources and their characteristics is used for the design of an experiment. The description of the construction of a database can also be a good advisor for the creation of a new one. There are free available databases and commercial virtual libraries of molecules. Furthermore, a computational chemist can find databases for a general purpose or a specific subset such as natural products (NPs). In this chapter, NP database resources are presented, along with some guidelines when preparing an NP database for drug discovery purposes.
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33
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Abstract
Natural products (NPs) are important sources of clinical drugs due to their structural diversity and biological prevalidation. However, the structural complexity of NPs leads to synthetic difficulties, unfavorable pharmacokinetic profiles, and poor drug-likeness. Structural simplification by truncating unnecessary substructures is a powerful strategy for overcoming these limitations and improving the efficiency and success rate of NP-based drug development. Herein, we will provide a comprehensive review of the structural simplification of NPs with a focus on design strategies, case studies, and new technologies. In particular, a number of successful examples leading to marketed drugs or drug candidates will be discussed in detail to illustrate how structural simplification is applied in lead optimization of NPs.
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Affiliation(s)
- Shengzheng Wang
- Department of Medicinal Chemistry, School of Pharmacy , Second Military Medical University , 325 Guohe Road , Shanghai , 200433 , P.R. China.,Department of Medicinal Chemistry, School of Pharmacy , Fourth Military Medical University , 169 Changle West Road , Xi'an , 710032 , P.R. China
| | - Guoqiang Dong
- Department of Medicinal Chemistry, School of Pharmacy , Second Military Medical University , 325 Guohe Road , Shanghai , 200433 , P.R. China
| | - Chunquan Sheng
- Department of Medicinal Chemistry, School of Pharmacy , Second Military Medical University , 325 Guohe Road , Shanghai , 200433 , P.R. China
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34
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Zheng S, Yan X, Gu Q, Yang Y, Du Y, Lu Y, Xu J. QBMG: quasi-biogenic molecule generator with deep recurrent neural network. J Cheminform 2019; 11:5. [PMID: 30656426 PMCID: PMC6689867 DOI: 10.1186/s13321-019-0328-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 01/09/2019] [Indexed: 12/30/2022] Open
Abstract
Biogenic compounds are important materials for drug discovery and chemical biology. In this work, we report a quasi-biogenic molecule generator (QBMG) to compose virtual quasi-biogenic compound libraries by means of gated recurrent unit recurrent neural networks. The library includes stereo-chemical properties, which are crucial features of natural products. QMBG can reproduce the property distribution of the underlying training set, while being able to generate realistic, novel molecules outside of the training set. Furthermore, these compounds are associated with known bioactivities. A focused compound library based on a given chemotype/scaffold can also be generated by this approach combining transfer learning technology. This approach can be used to generate virtual compound libraries for pharmaceutical lead identification and optimization.![]()
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Affiliation(s)
- Shuangjia Zheng
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, 132 East Circle at University City, Guangzhou, 510006, China
| | - Xin Yan
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, 132 East Circle at University City, Guangzhou, 510006, China.
| | - Qiong Gu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, 132 East Circle at University City, Guangzhou, 510006, China
| | - Yuedong Yang
- National Supercomputer Center in Guangzhou and School of Data and Computer Science, Sun Yat-Sen University, 132 East Circle at University City, Guangzhou, 510006, China
| | - Yunfei Du
- National Supercomputer Center in Guangzhou and School of Data and Computer Science, Sun Yat-Sen University, 132 East Circle at University City, Guangzhou, 510006, China
| | - Yutong Lu
- National Supercomputer Center in Guangzhou and School of Data and Computer Science, Sun Yat-Sen University, 132 East Circle at University City, Guangzhou, 510006, China
| | - Jun Xu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University, 132 East Circle at University City, Guangzhou, 510006, China. .,School of Computer Science and Technology, Wuyi University, 99 Yingbin Road, Jiangmen, 529020, China.
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35
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Klein-Júnior LC, Corrêa R, Vander Heyden Y, Cechinel Filho V. All that glitters is not gold: Panning cytotoxic natural products and derivatives with a fused tricyclic backbone by the estimation of their leadlikeness for cancer treatment. Eur J Med Chem 2019; 166:1-10. [PMID: 30684866 DOI: 10.1016/j.ejmech.2019.01.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 01/12/2019] [Accepted: 01/13/2019] [Indexed: 11/26/2022]
Abstract
Tricyclic compounds call the attention because of their pharmacological properties, and are considered a preferred platform for the development of drugs. Especially, in cancer treatment, these planar compounds are known for their ability to stack with DNA base pairs, acting as intercalators. In this sense, natural products (NPs) are a prodigal source of polycyclic compounds, comprising classes, such as carbolines, anthraquinones and xanthones. However, most of these compounds lack suitable physico-chemical properties, compatible to oral bioaviability. In this perspective, this paper aims to overview the role of tricyclic cores in the development of cytotoxic compounds, focusing on the leadlikeness estimation of the most prominent NP classes and their synthetic derivatives.
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Affiliation(s)
- Luiz Carlos Klein-Júnior
- Chemical-Pharmaceutical Investigation Center, University do Vale do Itajaí - UNIVALI, Rua Uruguai 456, 88.302-202, Itajaí, SC, Brazil.
| | - Rogério Corrêa
- Chemical-Pharmaceutical Investigation Center, University do Vale do Itajaí - UNIVALI, Rua Uruguai 456, 88.302-202, Itajaí, SC, Brazil
| | - Yvan Vander Heyden
- Department of Analytical Chemistry, Applied Chemometrics and Molecular Modelling, Center for Pharmaceutical Research (CePhaR), Vrije Universiteit Brussel - VUB, Laarbeeklaan 103, 1090, Brussels, Belgium
| | - Valdir Cechinel Filho
- Chemical-Pharmaceutical Investigation Center, University do Vale do Itajaí - UNIVALI, Rua Uruguai 456, 88.302-202, Itajaí, SC, Brazil
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36
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Luo G, Tang Z, Li X, Hou Q, Chen Y, Lao K, Xiang H. 3, 9-di-O-substituted coumestrols incorporating basic amine side chains act as novel apoptosis inducers with improved pharmacological selectivity. Bioorg Chem 2019; 85:140-151. [PMID: 30612080 DOI: 10.1016/j.bioorg.2018.12.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 11/07/2018] [Accepted: 12/18/2018] [Indexed: 01/11/2023]
Abstract
There is much interest in the use of phytoestrogens such as coumestrol in breast cancer intervention due to their antiestrogenic activity and multiple modes of tumor cell death. However, the clear beneficial effects of naturally occurring estrogen mimetic coumestrol remain controversial due to experimental evidence that it has been shown to stimulate MCF-7 cell proliferation via agonist effect on estrogen receptor at low concentration. Herein, to disconnect the ER interaction and apoptosis-specific mechanism of coumestrol, various 3, 9-di-O-substituted coumestrols (7a-7e) and their furan ring-opened analogs (5a-5e) were synthesized and assessed for antiproliferative properties. Attachment of a dimethylamine-containing side chain to 3-O of coumestrol led to the most promising compound 7e with improved antiproliferative activity (1.7-fold increase) against MCF-7 cells, decreased estrogen activity (>20 times weaker ERα binder) and a novel action to induce apoptosis. Mechanistic studies revealed that 7e is a tubulin polymerization inhibitor, which could arrest cell cycle at G2/M phase and induce apoptosis along with the decrease of mitochondrial membrane potential. In summary, such subtle modifications to the 3, 9-di-hydroxyl groups of coumestrol allow the generation of a novel apoptosis inducer with distinct pharmacological properties, providing an excellent starting point to future development of novel tumor-vascular disrupting agents targeting tubulin.
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Affiliation(s)
- Guoshun Luo
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China; Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Zhengpu Tang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China; Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Xinyu Li
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China; Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Qiangqiang Hou
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China; Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Yu Chen
- Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; Key Laboratory of Smart Drug Delivery, Ministry of Education School of Pharmacy, Fudan University, Lane 826, Zhangheng Road, Shanghai 201203, China
| | - Kejing Lao
- Shaanxi Key Laboratory of Brain Disorders and Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, Shaanxi 710021, China
| | - Hua Xiang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing 210009, China; Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
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37
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He Y, Narmon T, Wu D, Li Z, Van Meervelt L, Van der Eycken EV. A gold-triggered dearomative spirocarbocyclization/Diels–Alder reaction cascade towards diverse bridged N-heterocycles. Org Biomol Chem 2019; 17:9529-9536. [DOI: 10.1039/c9ob01967g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient chemo- and diastereoselective gold-triggered post-Ugi non-oxidativeortho-dearomative spirocarbocyclization/Diels–Alder reaction cascade sequence has been developed to deliver diverse bridged polycyclic N-heterocycles.
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Affiliation(s)
- Yi He
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- KU Leuven
- Leuven
- Belgium
| | - Thomas Narmon
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- KU Leuven
- Leuven
- Belgium
| | - Danjun Wu
- College of Pharmaceutical Science
- Zhejiang University of Technology
- 310014 Hangzhou
- China
| | - Zhenghua Li
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- KU Leuven
- Leuven
- Belgium
| | - Luc Van Meervelt
- Biomolecular Architecture
- Department of Chemistry
- KU Leuven
- Leuven
- Belgium
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- KU Leuven
- Leuven
- Belgium
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38
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Ashenden SK. Screening Library Design. Methods Enzymol 2018; 610:73-96. [PMID: 30390806 DOI: 10.1016/bs.mie.2018.09.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Thanks to technological advances and a greater understanding of the biological and chemical natures of targets and related diseases, high-throughput screening (HTS) has been allowed to be faster, cheaper, and more accessible. Yet, despite these increased technologies and understandings, the frequency of novel and drugs are being approved each year has not being increasing over the years. 2017 was considered a "bumper" year with a total of 46 approved drugs, over double that of the previous year. However, it is thought that part of the problem that HTS has not lived up to expectations is because of the contents of current chemical libraries. Therefore, new methods to design screening libraries are of great interest.
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Affiliation(s)
- Stephanie Kay Ashenden
- Department of Chemistry, Cambridge University, Cambridge, United Kingdom; Discovery Sciences, IMed Biotech Unit, AstraZeneca R&D, Cambridge, United Kingdom.
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Boström J, Brown DG, Young RJ, Keserü GM. Expanding the medicinal chemistry synthetic toolbox. Nat Rev Drug Discov 2018; 17:709-727. [DOI: 10.1038/nrd.2018.116] [Citation(s) in RCA: 267] [Impact Index Per Article: 44.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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40
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Chethna P, Iyer SS, Gandhi VV, Kunwar A, Singh BG, Barik A, Balaji NV, Ramani MV, Subbaraju GV, Priyadarsini KI. Toxicity and Antigenotoxic Effect of Hispolon Derivatives: Role of Structure in Modulating Cellular Redox State and Thioredoxin Reductase. ACS OMEGA 2018; 3:5958-5970. [PMID: 30023935 PMCID: PMC6045486 DOI: 10.1021/acsomega.8b00415] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 05/22/2018] [Indexed: 05/08/2023]
Abstract
Hispolon (HS), a bioactive polyphenol, and its derivatives such as hispolon monomethyl ether (HME), hispolon pyrazole (HP), and hispolon monomethyl ether pyrazole (HMEP) were evaluated for comparative toxicity and antigenotoxic effects. The stability of HS derivatives in biological matrices followed the order HS < HP ≈ HME < HMEP. The cytotoxicity analysis of HS derivatives indicated that HP and HMEP were less toxic than HS and HME, respectively, in both normal and tumor cell types. The mechanisms of toxicity of HS and HME involved inhibition of thioredoxin reductase (TrxR) and/or induction of reductive stress. From the enzyme kinetic and docking studies, it was established that HS and HME interacted with the NADPH-binding domain of TrxR through electrostatic and hydrophobic bonds, resulting in inhibition of the catalytic activity. Subsequently, treatment with HS, HP, and HMEP at a nontoxic concentration of 10 μM in Chinese Hamster Ovary (CHO) cells showed significant protection against radiation (4 Gy)-induced DNA damage as assessed by micronuclei and γ-H2AX assays. In conclusion, the above results suggested the importance of phenolic and diketo groups in controlling the stability and toxicity of HS derivatives. The pyrazole derivatives, HP and HMEP, may gain significance in the development of functional foods.
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Affiliation(s)
- Pogakula Chethna
- Radiation
& Photochemistry Division and Chemistry Division, Bhabha Atomic Research
Centre, Mumbai 400085, India
| | - Shruti S. Iyer
- Radiation
& Photochemistry Division and Chemistry Division, Bhabha Atomic Research
Centre, Mumbai 400085, India
| | - Vishwa V. Gandhi
- Radiation
& Photochemistry Division and Chemistry Division, Bhabha Atomic Research
Centre, Mumbai 400085, India
- Homi
Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India
| | - Amit Kunwar
- Radiation
& Photochemistry Division and Chemistry Division, Bhabha Atomic Research
Centre, Mumbai 400085, India
- Homi
Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India
- E-mail: . Phone: 91-22-25592352.
Fax: 91-22-25505151 (A.K.)
| | - Beena G. Singh
- Radiation
& Photochemistry Division and Chemistry Division, Bhabha Atomic Research
Centre, Mumbai 400085, India
| | - Atanu Barik
- Radiation
& Photochemistry Division and Chemistry Division, Bhabha Atomic Research
Centre, Mumbai 400085, India
- E-mail: (A.B.)
| | - Neduri V. Balaji
- Natsol
Laboratories Pvt. Ltd., Ramky Commercial Hub, J. N. Pharmacity, Visakhapatnam 531019, India
| | - Modukuri V. Ramani
- Natsol
Laboratories Pvt. Ltd., Ramky Commercial Hub, J. N. Pharmacity, Visakhapatnam 531019, India
| | | | - K. Indira Priyadarsini
- Radiation
& Photochemistry Division and Chemistry Division, Bhabha Atomic Research
Centre, Mumbai 400085, India
- Homi
Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India
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Tang HY, Quan LL, Yu J, Zhang Q, Gao JM. Caryophyllene driven diversity in an one-pot rearrangement of oxidation and transanular reactions. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.11.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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42
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Kim J, Kim I. Design and synthesis of a hybrid framework of indanone and chromane: total synthesis of a homoisoflavanoid, brazilane. Org Biomol Chem 2017; 16:89-100. [PMID: 29192699 DOI: 10.1039/c7ob02758c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A chemical backbone of tetracyclic homoisoflavanoid natural products such as brazilin inspired us to design a new chemical scaffold, 6a,11b-dihydroindeno[2,1-c]chromen-7(6H)-one, which is a hybrid structure of indanone and chromane. Pd-catalyzed Suzuki-Miyaura cross-coupling of 4-chloro-2H-chromene-3-carbaldehydes with (hetero)aryl boronic acids was employed as a means to introduce a wide variety of (hetero)aryl groups as the D ring and intramolecular Friedel-Crafts acylation was utilized to construct the C ring of this skeleton. Total synthesis of the natural product, brazilane, was also demonstrated via this new chemical framework.
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Affiliation(s)
- Jinwoo Kim
- College of Pharmacy and Yonsei Institute of Pharmaceutical Sciences, Yonsei University, 85 Songdogwahak-ro, Yeonsu-gu, Incheon, 21983, Republic of Korea.
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Naphthyridines part 4: unprecedented synthesis of polyfunctionally substituted benzo[c][2,7]naphthyridines and benzo[c]pyrimido[4,5,6-ij][2,7]naphthyridines with structural analogy to pyrido[4,3,2-mn]acridines present in the marine tetracyclic pyridoacridine alkaloids. Mol Divers 2017; 22:159-171. [DOI: 10.1007/s11030-017-9788-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 10/06/2017] [Indexed: 11/27/2022]
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Abstract
Natural products (NPs) have been used as traditional medicines since antiquity. With more than 1060 estimated compounds with molecular weights less than 500 Da representing chemical space, NPs occupy a very small percentage; however, they are significantly overrepresented in biologically relevant chemical space. The classical approach concentrates on identifying one or more NPs with biological activity from a source organism. There is much more to be learned from NPs than we can discover this narrow view. In this review, we discuss ways to harness the global properties of NPs.
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Affiliation(s)
- Asmaa Boufridi
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, Queensland 4111, Australia; ,
| | - Ronald J Quinn
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, Queensland 4111, Australia; ,
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Qin L, Vo DD, Nakhai A, Andersson CD, Elofsson M. Diversity-Oriented Synthesis of Libraries Based on Benzofuran and 2,3-Dihydrobenzofuran Scaffolds. ACS COMBINATORIAL SCIENCE 2017; 19:370-376. [PMID: 28306238 DOI: 10.1021/acscombsci.7b00014] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Benzofuran and 2,3-dihydrobenzofuran scaffolds are core components in a large number of biologically active natural and synthetic compounds including approved drugs. Herein, we report efficient synthetic protocols for preparation of libraries based on 3-carboxy 2-aryl benzofuran and 3-carboxy 2-aryl trans-2,3-dihydrobenzofuran scaffolds using commercially available salicylaldehydes, aryl boronic acids or halides and primary or secondary amines. The building blocks were selected to achieve variation in physicochemical properties and statistical molecular design and subsequent synthesis resulted in 54 lead-like compounds with molecular weights of 299-421 and calculated octanol/water partition coefficients of 1.9-4.7.
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Affiliation(s)
- Liena Qin
- Department of Chemistry, Umeå University, SE90187 Umeå, Sweden
| | - Duc-Duy Vo
- Department of Chemistry, Umeå University, SE90187 Umeå, Sweden
| | - Azadeh Nakhai
- Department of Chemistry, Umeå University, SE90187 Umeå, Sweden
| | | | - Mikael Elofsson
- Department of Chemistry, Umeå University, SE90187 Umeå, Sweden
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Mathur S, Hoskins C. Drug development: Lessons from nature. Biomed Rep 2017; 6:612-614. [PMID: 28584631 DOI: 10.3892/br.2017.909] [Citation(s) in RCA: 117] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 12/14/2016] [Indexed: 12/25/2022] Open
Abstract
Natural products have been acknowledged for numerous years as a vital source of active ingredients in therapeutic agents. In particular, the use of active ingredients derived from plants for use in microbial natural products have long been used before the dawn of modern medicine. From ancient times, the efficacy of natural products has been associated with the chemistry, biochemistry and synthetic activities of natural products. Thus, with scientific advancement in modern molecular and cellular biology, analytical chemistry and pharmacology, the unique properties of these natural products are being harnessed in order to exploit the chemical and structural diversity and biodiversity of these types of products in relation to their therapeutic effect. Often, new molecules of interest in drug design units focus on the rearrangement of chemical entities or structural isomers of naturally occurring products in order to generate new molecules; these may be formulated into clinically useful therapies.
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Affiliation(s)
- Sunil Mathur
- Molecular Drug Research Laboratory, Edinburgh Napier University, Edinburgh EH11 4BN, UK
| | - Clare Hoskins
- Institute of Science and Technology in Medicine, Keele University, Hartshill, Stoke-on-Trent ST4 7QB, UK
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Bufadienolides from amphibians: A promising source of anticancer prototypes for radical innovation, apoptosis triggering and Na +/K +-ATPase inhibition. Toxicon 2017; 127:63-76. [PMID: 28069354 DOI: 10.1016/j.toxicon.2017.01.004] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 12/27/2016] [Accepted: 01/05/2017] [Indexed: 12/22/2022]
Abstract
Amphibians present pharmacologically active aliphatic, aromatic and heterocyclic molecules in their skin as defense against microorganisms, predators and infections, such as steroids, alkaloids, biogenic amines, guanidine derivatives, proteins and peptides. Based on the discovered bioactive potential of bufadienolides, this work reviewed the contribution of amphibians, especially from members of Bufonidae family, as source of new cytotoxic and antitumor molecules, highlighting the mechanisms responsible for such amazing biological potentialities. Bufonidae species produce bufadienolides related to cholesterol through the mevalonate-independent and acidic bile acid pathways as polyhydroxy steroids with 24 carbons. In vitro antitumor studies performed with skin secretions and its isolated components (specially marinobufagin, telocinobufagin, bufalin and cinobufagin) from Rhinella, Bufo and Rhaebo species have shown remarkable biological action on hematological, solid, sensitive and/or resistant human tumor cell lines. Some compounds revealed higher selectivity against neoplastic lines when compared to dividing normal cells and some molecules may biochemically associate with Na+/K+-ATPase and there is structural similarity to the digoxin- and ouabain-Na+/K+-ATPase complexs, implying a similar mechanism of the Na+/K+-ATPase inhibition by cardenolides and bufadienolides. Some bufadienolides also reduce levels of antiapoptotic proteins and DNA synthesis, cause morphological changes (chromatin condensation, nuclear fragmentation, cytoplasm shrinkage, cytoplasmic vacuoles, stickiness reduction and apoptotic bodies), cell cycle arrest in G2/M or S phases, mitochondrial depolarization, PARP [poly (ADPribose) polymerase] and Bid cleavages, cytochrome c release, activation of Bax and caspases (-3, -9, -8 and -10), increased expression of the Fas-Associated protein with Death Domain (FADD), induce topoisomerase II inhibition, DNA fragmentation, cell differentiation, angiogenesis inhibition, multidrug resistance reversion, and also regulate immune responses. Then, bufadienolides isolated from amphibians, some of them at risk of extinction, emerge as a natural class of incredible chemical biodiversity, has moderate selectivity against human tumor cells and weak activity on murine cells, probably due to structural differences between subunits of human and mice Na+/K+-ATPases.
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Chauhan J, Luthra T, Gundla R, Ferraro A, Holzgrabe U, Sen S. A diversity oriented synthesis of natural product inspired molecular libraries. Org Biomol Chem 2017; 15:9108-9120. [DOI: 10.1039/c7ob02230a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Diversity oriented synthesis of natural product inspired compounds from S-tryptophan methyl ester.
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Affiliation(s)
- Jyoti Chauhan
- Department of Chemistry
- School of Natural Sciences
- Shiv Nadar University
- GautamBudh Nagar
- India
| | - Tania Luthra
- Department of Chemistry
- School of Natural Sciences
- Shiv Nadar University
- GautamBudh Nagar
- India
| | - Rambabu Gundla
- Department of Chemistry
- Gitam Institute of Technology
- GITAM University
- Hyderabad
- India
| | - Antonio Ferraro
- Institute of Pharmacy and Food Chemistry
- University of Würzburg
- Am Hubland
- Germany
| | - Ulrike Holzgrabe
- Institute of Pharmacy and Food Chemistry
- University of Würzburg
- Am Hubland
- Germany
| | - Subhabrata Sen
- Department of Chemistry
- School of Natural Sciences
- Shiv Nadar University
- GautamBudh Nagar
- India
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Active fragments-guided drug discovery and design of selective tropane alkaloids using ultra-high performance liquid chromatography-quadrupole time-of-flight tandem mass spectrometry coupled with virtual calculation and biological evaluation. Anal Bioanal Chem 2016; 409:1145-1157. [PMID: 27796460 DOI: 10.1007/s00216-016-0043-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Revised: 10/02/2016] [Accepted: 10/19/2016] [Indexed: 01/08/2023]
Abstract
Tropane alkaloids (TAs), rich in the plant of Physochlaina infundibularis Kuang, which is named Huashanshen (HSS) in China, showed good effects on types of spasms. However, no data were collected to explore the relationship between the specificity for muscarinic receptor subtypes and the structures of these TAs. To address this issue, an extracted ion chromatogram (EIC) strategy using ultra-high performance liquid chromatography-quadrupole time-of-flight tandem mass spectrometry (UPLC-Q/TOF-MS) based on the fragmentation behavior of the TA standards was established to rapidly capture the varied TAs from HSS. Based on the provided structural information of diagnostic ions or neutral loss, 29 TAs were efficiently profiled, especially some trace ingredients. In additional, via virtual validation combined with molecular dynamic simulation, approximately a dozen alkaloids were found with high selectivity for muscarinic receptors. In additional, N-acetyl convolicine was chosen for selectivity evaluation of M2 or M3 receptors through the use of a dual-luciferase reporter assay system at the cellular level and an ACh-induced constricted strip test in vitro. After summarizing the active fragments and the structure-activity relationship (SAR) information, a new modified TA that takes advantage of both the high affinity and high selectivity for M3 receptors was proposed and evaluated successfully. This study provided an effective approach for the discovery and design of natural products based on highly selective drugs by UPLC-Q/TOF-MS coupled with virtual calculation and biological evaluation. Graphical Abstract Active fragments-guided strategy for selective inhibitors from HSS.
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Rajaonarivelo M, Rakotonandrasana OL, Martin MT, Dumontet V, Rasoanaivo P. A New Polycyclic Polyprenylated Acylphloroglucinol Derivative from Garcinia verrucosa. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100734] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In our continuing phytochemical screening program aimed at finding major constituents of endemic Madagascar plants as potential templates for semisynthesis, we investigated the ethyl acetate extract of stem bark of Garcinia verrucosa. Fractionation of the extract led to the isolation of the major compound named garcicosin. Its structure was elucidated by spectroscopic methods including 1D and 2D homo- and heteronuclear NMR techniques (COSY, HSQC, HMBC and NOESY), and HR-mass spectrometry.
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Affiliation(s)
- Mialy Rajaonarivelo
- Institut Malgache de Recherches Appliquées, Fondation Rakoto Ratsimamanga, BP 3833, 101 Antananarivo, Madagascar
- Institut de Chimie des Substances Naturelles, CNRS-ICSN UPR2301, Université Paris-Saclay, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Olga L. Rakotonandrasana
- Institut Malgache de Recherches Appliquées, Fondation Rakoto Ratsimamanga, BP 3833, 101 Antananarivo, Madagascar
| | - Marie-Thérèse Martin
- Institut de Chimie des Substances Naturelles, CNRS-ICSN UPR2301, Université Paris-Saclay, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Vincent Dumontet
- Institut de Chimie des Substances Naturelles, CNRS-ICSN UPR2301, Université Paris-Saclay, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Philippe Rasoanaivo
- Institut Malgache de Recherches Appliquées, Fondation Rakoto Ratsimamanga, BP 3833, 101 Antananarivo, Madagascar
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