1
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Velma G, Shen Z, Holberg C, Fu J, Soleymani F, Cooper L, Ramos OL, Indukuri D, Musku SR, Rychetsky P, Slilaty S, Li Z, Ratia K, Rong L, Schenten D, Xiong R, J Thatcher GR. Non-Covalent Inhibitors of SARS-CoV-2 Papain-Like Protease (PLpro): In Vitro and In Vivo Antiviral Activity. J Med Chem 2024; 67:13681-13702. [PMID: 39102360 PMCID: PMC11345844 DOI: 10.1021/acs.jmedchem.4c00378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 07/01/2024] [Accepted: 07/22/2024] [Indexed: 08/07/2024]
Abstract
The SARS-CoV-2 papain-like protease (PLpro), essential for viral processing and immune response disruption, is a promising target for treating acute infection of SARS-CoV-2. To date, there have been no reports of PLpro inhibitors with both submicromolar potency and animal model efficacy. To address the challenge of PLpro's featureless active site, a noncovalent inhibitor library with over 50 new analogs was developed, targeting the PLpro active site by modulating the BL2-loop and engaging the BL2-groove. Notably, compounds 42 and 10 exhibited strong antiviral effects and were further analyzed pharmacokinetically. 10, in particular, showed a significant lung accumulation, up to 12.9-fold greater than plasma exposure, and was effective in a mouse model of SARS-CoV-2 infection, as well as against several SARS-CoV-2 variants. These findings highlight the potential of 10 as an in vivo chemical probe for studying PLpro inhibition in SARS-CoV-2 infection.
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Affiliation(s)
- Ganga
Reddy Velma
- Department
of Pharmacology & Toxicology, R. Ken Coit College of Pharmacy, University of Arizona, Tucson 85721, Arizona, United States
| | - Zhengnan Shen
- Department
of Pharmacology & Toxicology, R. Ken Coit College of Pharmacy, University of Arizona, Tucson 85721, Arizona, United States
| | - Cameron Holberg
- Department
of Pharmacology & Toxicology, R. Ken Coit College of Pharmacy, University of Arizona, Tucson 85721, Arizona, United States
| | - Jiqiang Fu
- Department
of Pharmacology & Toxicology, R. Ken Coit College of Pharmacy, University of Arizona, Tucson 85721, Arizona, United States
| | - Farinaz Soleymani
- Department
of Chemistry & Biochemistry, Colleges of Science and Medicine, University of Arizona, Tucson 85721, Arizona, United States
| | - Laura Cooper
- Department
of Microbiology, College of Medicine, University
of Illinois at Chicago (UIC), Chicago 60612, Illinois, United States
| | - Omar Lozano Ramos
- Department
of Pharmacology & Toxicology, R. Ken Coit College of Pharmacy, University of Arizona, Tucson 85721, Arizona, United States
| | - Divakar Indukuri
- Department
of Pharmacology & Toxicology, R. Ken Coit College of Pharmacy, University of Arizona, Tucson 85721, Arizona, United States
| | - Soumya Reddy Musku
- Department
of Pharmacology & Toxicology, R. Ken Coit College of Pharmacy, University of Arizona, Tucson 85721, Arizona, United States
| | - Pavel Rychetsky
- Department
of Pharmacology & Toxicology, R. Ken Coit College of Pharmacy, University of Arizona, Tucson 85721, Arizona, United States
| | - Steve Slilaty
- Sunshine
Biopharma Inc, 333 Las Olas Way, CU4 Suite 433, Fort Lauderdale 33301, Florida, United States
| | - Zuomei Li
- Sunshine
Biopharma Inc, 333 Las Olas Way, CU4 Suite 433, Fort Lauderdale 33301, Florida, United States
| | - Kiira Ratia
- Research
Resources Center, University of Illinois
at Chicago (UIC), Chicago 60612, Illinois, United States
| | - Lijun Rong
- Department
of Microbiology, College of Medicine, University
of Illinois at Chicago (UIC), Chicago 60612, Illinois, United States
| | - Dominik Schenten
- Department
of Immunology, College of Medicine, University
of Arizona, Tucson 85721, Arizona, United States
| | - Rui Xiong
- Department
of Pharmacology & Toxicology, R. Ken Coit College of Pharmacy, University of Arizona, Tucson 85721, Arizona, United States
| | - Gregory R. J Thatcher
- Department
of Pharmacology & Toxicology, R. Ken Coit College of Pharmacy, University of Arizona, Tucson 85721, Arizona, United States
- Department
of Chemistry & Biochemistry, Colleges of Science and Medicine, University of Arizona, Tucson 85721, Arizona, United States
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2
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Kennelly S, Sawyer JM, Payne AF, Ciota AT, Harki DA. Development of 3'-Deoxy-3',4'-didehydro-nucleoside Prodrug Inhibitors of West Nile and Zika Viruses. ACS Med Chem Lett 2024; 15:1334-1339. [PMID: 39140046 PMCID: PMC11318099 DOI: 10.1021/acsmedchemlett.4c00225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 06/16/2024] [Accepted: 06/26/2024] [Indexed: 08/15/2024] Open
Abstract
The antiviral enzyme viperin catalyzes the formation of 3'-deoxy-3',4'-didehydro-cytidine-5'-triphosphate (ddhCTP). ddhCTP is incorporated into viral genomes and terminates genomic replication to confer broad-spectrum antiviral effects. We have previously utilized phosphoramidate pronucleotide (ProTide) technology to enable metabolic production of ddhCTP in cells from an exogenously dosed 3'-deoxy-3',4'-didehydro-cytidine ProTide, which confers inhibitory activity against West Nile virus (WNV) and Zika virus (ZIKV). Herein, we synthesized 3'-deoxy-3',4'-didehydro-nucleosides containing all native nucleobases (thymine, uracil, adenine, guanine, and hypoxanthine), elaborated each to a ProTide, and measured their activity for controlling WNV and ZIKV infection. In comparison to the ddhC ProTide, we found that the ProTides of 3'-deoxy-3',4'-didehydro-guanosine and 3'-deoxy-3',4'-didehydro-adenosine possess 2- and 4-fold greater antiviral effects against ZIKV, respectively. Collectively, this work advances the development of 3'-deoxy-3',4'-didehydro nucleosides as promising compounds for further development into broad-spectrum antiviral agents.
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Affiliation(s)
- Samantha
A. Kennelly
- Department
of Medicinal Chemistry, University of Minnesota, 2231 Sixth Street SE, Minneapolis, Minnesota 55455, United States
| | - Jacob M. Sawyer
- Department
of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Anne F. Payne
- Department
of Biomedical Sciences, State University
of New York at Albany School of Public Health, Albany, New York 12144, United States
- The
Arbovirus Laboratory, Wadsworth Center, New York State Department of Health, Slingerlands, New York 12201, United States
| | - Alexander T. Ciota
- Department
of Biomedical Sciences, State University
of New York at Albany School of Public Health, Albany, New York 12144, United States
- The
Arbovirus Laboratory, Wadsworth Center, New York State Department of Health, Slingerlands, New York 12201, United States
| | - Daniel A. Harki
- Department
of Medicinal Chemistry, University of Minnesota, 2231 Sixth Street SE, Minneapolis, Minnesota 55455, United States
- Department
of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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3
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Silva B, Marques EF, Gomes AC. Recent advances in in vitro models simulating the female genital tract toward more effective intravaginal therapeutic delivery. Expert Opin Drug Deliv 2024; 21:1007-1027. [PMID: 39001669 DOI: 10.1080/17425247.2024.2380338] [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: 02/21/2024] [Accepted: 07/11/2024] [Indexed: 07/23/2024]
Abstract
INTRODUCTION Intravaginal drug delivery has emerged as a promising avenue for treating a spectrum of systemic and local female genital tract (FGT) conditions, using biomaterials as carriers or scaffolds for targeted and efficient administration. Much effort has been made to understand the natural barriers of this route and improve the delivery system to achieve an efficient therapeutic response. AREAS COVERED In this review, we conducted a comprehensive literature search using multiple databases (PubMed Scopus Web of Science Google Scholar), to discuss the potential of intravaginal therapeutic delivery, as well as the obstacles unique to this route. The in vitro cell models of the FGT and how they can be applied to probing intravaginal drug delivery are then analyzed. We further explore the limitations of the existing models and the possibilities to make them more promising for delivery studies or biomaterial validation. Complementary information is provided by in vitro acellular techniques that may shed light on mucus-drug interaction. EXPERT OPINION Advances in 3D models and cell cultures have enhanced our understanding of the FGT, but they still fail to replicate all variables. Future research should aim to use complementary methods, ensure stability, and develop consistent protocols to improve therapy evaluation and create better predictive in vitro models for women's health.
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Affiliation(s)
- Bruna Silva
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, Campus of Gualtar, University of Minho, Braga, Portugal
- CIQUP, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
| | - Eduardo F Marques
- CIQUP, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
| | - Andreia C Gomes
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, Campus of Gualtar, University of Minho, Braga, Portugal
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4
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Wathoni N, Herdiana Y, Suhandi C, Mohammed AFA, El-Rayyes A, Narsa AC. Chitosan/Alginate-Based Nanoparticles for Antibacterial Agents Delivery. Int J Nanomedicine 2024; 19:5021-5044. [PMID: 38832335 PMCID: PMC11146614 DOI: 10.2147/ijn.s469572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 05/22/2024] [Indexed: 06/05/2024] Open
Abstract
Nanoparticle systems integrating alginate and chitosan emerge as a promising avenue to tackle challenges in leveraging the potency of pharmacological active agents. Owing to their intrinsic properties as polysaccharides, alginate and chitosan, exhibit remarkable biocompatibility, rendering them conducive to bodily integration. By downsizing drug particles to the nano-scale, the system enhances drug solubility in aqueous environments by augmenting surface area. Additionally, the system orchestrates extended drug release kinetics, aligning well with the exigencies of chronic drug release requisite for antibacterial therapeutics. A thorough scrutiny of existing literature underscores a wealth of evidence supporting the utilization of the alginate-chitosan nanoparticle system for antibacterial agent delivery. Literature reviews present abundant evidence of the utilization of nanoparticle systems based on a combination of alginate and chitosan for antibacterial agent delivery. Various experiments demonstrate enhanced antibacterial efficacy, including an increase in the inhibitory zone diameter, improvement in the minimum inhibitory concentration, and an enhancement in the bacterial reduction rate. This enhancement in efficacy occurs due to mechanisms involving increased solubility resulting from particle size reduction, prolonged release effects, and enhanced selectivity towards bacterial cell walls, stemming from ionic interactions between positively charged particles and teichoic acid on bacterial cell walls. However, clinical studies remain limited, and there are currently no marketed antibacterial drugs utilizing this system. Hence, expediting clinical efficacy validation is crucial to maximize its benefits promptly.
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Affiliation(s)
- Nasrul Wathoni
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor, 45363, Indonesia
| | - Yedi Herdiana
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor, 45363, Indonesia
| | - Cecep Suhandi
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor, 45363, Indonesia
| | | | - Ali El-Rayyes
- Department of Chemistry, College of Science, Northern Border University, Arar, Saudi Arabia
| | - Angga Cipta Narsa
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Mulawarman University, Samarinda, 71157, Indonesia
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5
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Darnotuk ES, Siniavin AE, Shastina NS, Luyksaar SI, Inshakova AM, Bondareva NE, Zolotov SA, Lubenec NL, Sheremet AB, Logunov DY, Zigangirova NA, Gushchin VA, Gintsburg AL. Synthesis and Antiviral Activity of Novel β-D-N4-Hydroxycytidine Ester Prodrugs as Potential Compounds for the Treatment of SARS-CoV-2 and Other Human Coronaviruses. Pharmaceuticals (Basel) 2023; 17:35. [PMID: 38256869 PMCID: PMC10821229 DOI: 10.3390/ph17010035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 01/24/2024] Open
Abstract
The spread of COVID-19 infection continues due to the emergence of multiple transmissible and immune-evasive variants of the SARS-CoV-2 virus. Although various vaccines have been developed and several drugs have been approved for the treatment of COVID-19, the development of new drugs to combat COVID-19 is still necessary. In this work, new 5'-O-ester derivatives of N4-hydroxycytidine based on carboxylic acids were developed and synthesized by Steglich esterification. The antiviral activity of the compounds was assessed in vitro-inhibiting the cytopathic effect of HCoV-229E, and three variants of SARS-CoV-2, on huh-7 and Vero E6 cells. Data have shown that most synthesized derivatives exhibit high activity against coronaviruses. In addition, the relationship between the chemical structure of the compounds and their antiviral effect has been established. The obtained results show that the most active compound was conjugate SN_22 based on 3-methyl phenoxyacetic acid. The results of this study indicate the potential advantage of the chemical strategies used to modify NHC as a promising avenue to be explored in vivo, which could lead to the development of drugs with improved pharmacological properties that potently inhibit SARS-CoV-2.
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Affiliation(s)
- Elizaveta S. Darnotuk
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named after Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (E.S.D.); (N.S.S.); (S.I.L.); (A.M.I.); (N.E.B.); (S.A.Z.); (N.L.L.); (A.B.S.); (D.Y.L.); (N.A.Z.); (A.L.G.)
- Institute of Fine Chemical Technologies, MIREA—Russian Technological University, 119571 Moscow, Russia
| | - Andrei E. Siniavin
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named after Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (E.S.D.); (N.S.S.); (S.I.L.); (A.M.I.); (N.E.B.); (S.A.Z.); (N.L.L.); (A.B.S.); (D.Y.L.); (N.A.Z.); (A.L.G.)
- Department of Molecular Neuroimmune Signaling, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia
| | - Natal’ya S. Shastina
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named after Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (E.S.D.); (N.S.S.); (S.I.L.); (A.M.I.); (N.E.B.); (S.A.Z.); (N.L.L.); (A.B.S.); (D.Y.L.); (N.A.Z.); (A.L.G.)
- Institute of Fine Chemical Technologies, MIREA—Russian Technological University, 119571 Moscow, Russia
| | - Sergey I. Luyksaar
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named after Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (E.S.D.); (N.S.S.); (S.I.L.); (A.M.I.); (N.E.B.); (S.A.Z.); (N.L.L.); (A.B.S.); (D.Y.L.); (N.A.Z.); (A.L.G.)
| | - Anna M. Inshakova
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named after Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (E.S.D.); (N.S.S.); (S.I.L.); (A.M.I.); (N.E.B.); (S.A.Z.); (N.L.L.); (A.B.S.); (D.Y.L.); (N.A.Z.); (A.L.G.)
- Institute of Fine Chemical Technologies, MIREA—Russian Technological University, 119571 Moscow, Russia
| | - Natalia E. Bondareva
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named after Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (E.S.D.); (N.S.S.); (S.I.L.); (A.M.I.); (N.E.B.); (S.A.Z.); (N.L.L.); (A.B.S.); (D.Y.L.); (N.A.Z.); (A.L.G.)
| | - Sergey A. Zolotov
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named after Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (E.S.D.); (N.S.S.); (S.I.L.); (A.M.I.); (N.E.B.); (S.A.Z.); (N.L.L.); (A.B.S.); (D.Y.L.); (N.A.Z.); (A.L.G.)
| | - Nadezhda L. Lubenec
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named after Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (E.S.D.); (N.S.S.); (S.I.L.); (A.M.I.); (N.E.B.); (S.A.Z.); (N.L.L.); (A.B.S.); (D.Y.L.); (N.A.Z.); (A.L.G.)
| | - Anna B. Sheremet
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named after Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (E.S.D.); (N.S.S.); (S.I.L.); (A.M.I.); (N.E.B.); (S.A.Z.); (N.L.L.); (A.B.S.); (D.Y.L.); (N.A.Z.); (A.L.G.)
| | - Denis Y. Logunov
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named after Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (E.S.D.); (N.S.S.); (S.I.L.); (A.M.I.); (N.E.B.); (S.A.Z.); (N.L.L.); (A.B.S.); (D.Y.L.); (N.A.Z.); (A.L.G.)
| | - Nailya A. Zigangirova
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named after Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (E.S.D.); (N.S.S.); (S.I.L.); (A.M.I.); (N.E.B.); (S.A.Z.); (N.L.L.); (A.B.S.); (D.Y.L.); (N.A.Z.); (A.L.G.)
| | - Vladimir A. Gushchin
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named after Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (E.S.D.); (N.S.S.); (S.I.L.); (A.M.I.); (N.E.B.); (S.A.Z.); (N.L.L.); (A.B.S.); (D.Y.L.); (N.A.Z.); (A.L.G.)
| | - Alexander L. Gintsburg
- Federal State Budget Institution “National Research Centre for Epidemiology and Microbiology Named after Honorary Academician N. F. Gamaleya” of the Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (E.S.D.); (N.S.S.); (S.I.L.); (A.M.I.); (N.E.B.); (S.A.Z.); (N.L.L.); (A.B.S.); (D.Y.L.); (N.A.Z.); (A.L.G.)
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6
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Liu Y, Sun S, Li J, Wang W, Zhu HJ. Cell-Dependent Activation of ProTide Prodrugs and Its Implications in Antiviral Studies. ACS Pharmacol Transl Sci 2023; 6:1340-1346. [PMID: 37854623 PMCID: PMC10580387 DOI: 10.1021/acsptsci.3c00050] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Indexed: 10/20/2023]
Abstract
The ProTide prodrug design is a powerful tool to improve cell permeability and enhance the intracellular activation of nucleotide antiviral analogues. Previous in vitro studies showed that the activation of ProTide prodrugs varied in different cell lines. In the present study, we investigated the activation profiles of two antiviral prodrugs tenofovir alafenamide (TAF) and sofosbuvir (SOF) in five cell lines commonly used in antiviral research, namely, Vero E6, Huh-7, Calu-3, A549, and Caco-2. We found that TAF and SOF were activated in a cell-dependent manner with Vero E6 being the least efficient and Huh-7 being the most efficient cell line for activating the prodrugs. We also demonstrated that TAF was activated at a significantly higher rate than SOF. We further analyzed the protein expressions of the activating enzymes carboxylesterase 1, cathepsin A, histidine triad nucleotide-binding protein 1, and the relevant drug transporters P-glycoprotein and organic anion-transporting polypeptides 1B1 and 1B3 in the cell lines using the proteomics data extracted from the literature and proteome database. The results revealed significant differences in the expression patterns of the enzymes and transporters among the cell lines, which might partially contribute to the observed cell-dependent activation of TAF and SOF. These findings highlight the variability of the abundance of activating enzymes and transporters between cell lines and emphasize the importance of selecting appropriate cell lines for assessing the antiviral efficacy of nucleoside/nucleotide prodrugs.
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Affiliation(s)
| | | | - Jiapeng Li
- Department of Clinical Pharmacy, University of Michigan College of Pharmacy, 428 Church Street, Ann Arbor, Michigan 48109, United States
| | - Weiwen Wang
- Department of Clinical Pharmacy, University of Michigan College of Pharmacy, 428 Church Street, Ann Arbor, Michigan 48109, United States
| | - Hao-Jie Zhu
- Department of Clinical Pharmacy, University of Michigan College of Pharmacy, 428 Church Street, Ann Arbor, Michigan 48109, United States
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7
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Klootwyk B, Ryan AE, Lopez A, McCloskey MJR, Janosko CP, Deiters A, Floreancig PE. Peroxide-Mediated Release of Organophosphates from Boron-Containing Phosphotriesters: A New Class of Organophosphate Prodrugs. Org Lett 2023; 25:5530-5535. [PMID: 37463277 PMCID: PMC10391626 DOI: 10.1021/acs.orglett.3c02036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Indexed: 07/20/2023]
Abstract
Phosphate mono- and diesters can be liberated efficiently from boryl allyloxy (BAO) and related phosphotriesters by H2O2. This protocol was applied to the release of a phosphorylated serine derivative and the nucleotide analogue AZT monophosphate. Nucleotide release in the presence of ATP and a kinase provides a diphosphate, demonstrating that this method can be applied to biological processes.
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Affiliation(s)
- Brittany
M. Klootwyk
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Amy E. Ryan
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Arbil Lopez
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Mitchell J. R. McCloskey
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Chasity P. Janosko
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Alexander Deiters
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Paul E. Floreancig
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
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8
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Zhou Q, Luo Y, Zhu Y, Chen Q, Qiu J, Cong F, Li Y, Zhang X. Nonsteroidal anti-inflammatory drugs (NSAIDs) and nucleotide analog GS-441524 conjugates with potent in vivo efficacy against coronaviruses. Eur J Med Chem 2023; 249:115113. [PMID: 36706621 PMCID: PMC9830933 DOI: 10.1016/j.ejmech.2023.115113] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/25/2022] [Accepted: 01/09/2023] [Indexed: 01/11/2023]
Abstract
Coronaviruses (CoVs) infect a broad range of hosts, including humans and various animals, with a tendency to cross the species barrier, causing severe harm to human society and fostering the need for effective anti-coronaviral drugs. GS-441524 is a broad-spectrum antiviral nucleoside with potent anti-CoVs activities. However, its application is limited by poor oral bioavailability. Herein, we designed and synthesized several conjugates via covalently binding NSAIDs to 5'-OH of GS-441524 through ester bonds. The ibuprofen conjugate, ATV041, exhibited potent in vitro anti-coronaviral efficacy against four zoonotic coronaviruses in the alpha- and beta-genera. Oral-dosed ATV041 resulted in favorable bioavailability and rapid tissue distribution of GS-441524 and ibuprofen. In MHV-A59 infected mice, ATV041 dose-dependently decreased viral RNA replication and significantly reduced the proinflammatory cytokines in the liver and the lung at 3 dpi. As a result, the MHV-A59-induced lung and liver inflammatory injury was significantly alleviated. Taken together, this work provides a novel drug conjugate strategy to improve oral PK and offers a potent anti-coronaviral lead compound for further studies.
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Affiliation(s)
- Qifan Zhou
- Department of Chemistry, College of Science, Academy for Advanced Interdisciplinary Studies and Medi-X Pingshan, Southern University of Science and Technology, Shenzhen, Guangdong, 518000, China
| | - Yinzhu Luo
- Guangdong Province Key Laboratory of Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou, Guangdong, 510663, China
| | - Yujun Zhu
- Guangdong Province Key Laboratory of Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou, Guangdong, 510663, China
| | - Qishu Chen
- Department of Chemistry, College of Science, Academy for Advanced Interdisciplinary Studies and Medi-X Pingshan, Southern University of Science and Technology, Shenzhen, Guangdong, 518000, China
| | - Jingfei Qiu
- Department of Chemistry, College of Science, Academy for Advanced Interdisciplinary Studies and Medi-X Pingshan, Southern University of Science and Technology, Shenzhen, Guangdong, 518000, China
| | - Feng Cong
- Guangdong Province Key Laboratory of Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou, Guangdong, 510663, China.
| | - Yingjun Li
- Department of Chemistry, College of Science, Academy for Advanced Interdisciplinary Studies and Medi-X Pingshan, Southern University of Science and Technology, Shenzhen, Guangdong, 518000, China; State Key Laboratory of Chemical Oncogenomics, Tsinghua Shenzhen International Graduate School, Shenzhen, 518055, China.
| | - Xumu Zhang
- Department of Chemistry, College of Science, Academy for Advanced Interdisciplinary Studies and Medi-X Pingshan, Southern University of Science and Technology, Shenzhen, Guangdong, 518000, China.
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9
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Identification of West Nile virus RNA-dependent RNA polymerase non-nucleoside inhibitors by real-time high throughput fluorescence screening. Antiviral Res 2023; 212:105568. [PMID: 36842536 DOI: 10.1016/j.antiviral.2023.105568] [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: 11/25/2022] [Revised: 02/20/2023] [Accepted: 02/21/2023] [Indexed: 02/28/2023]
Abstract
West Nile virus (WNV) is a re-emergent mosquito-borne RNA virus that causes major outbreaks of encephalitis around the world. However, there is no therapeutic treatment to struggle against WNV, and the current treatment relies on alleviating symptoms. Therefore, due to the threat virus poses to animal and human health, there is an urgent need to come up with fast strategies to identify and assess effective antiviral compounds. A relevant target when developing drugs against RNA viruses is the viral RNA-dependent RNA polymerase (RdRp), responsible for the replication of the viral genome within a host cell. RdRps are key therapeutic targets based on their specificity for RNA and their essential role in the propagation of the infection. We have developed a fluorescence-based method to measure WNV RdRp activity in a fast and reliable real-time way. Interestingly, rilpivirine has shown in our assay inhibition of the WNV RdRp activity with an IC50 value of 3.3 μM and its antiviral activity was confirmed in cell cultures. Furthermore, this method has been extended to build up a high-throughput screening platform to identify WNV polymerase inhibitors. By screening a small chemical library, novel RdRp inhibitors 1-4 have been identified. When their antiviral activity was tested against WNV in cell culture, 4 exhibited an EC50 value of 2.5 μM and a selective index of 12.3. Thus, rilpivirine shows up as an interesting candidate for repurposing against flavivirus. Moreover, the here reported method allows the rapid identification of new WNV RdRp inhibitors.
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10
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Hoffmann G, Le Gorrec M, Mestdach E, Cusack S, Salmon L, Jensen MR, Palencia A. Adenosine-Dependent Activation Mechanism of Prodrugs Targeting an Aminoacyl-tRNA Synthetase. J Am Chem Soc 2023; 145:800-810. [PMID: 36599057 PMCID: PMC9853866 DOI: 10.1021/jacs.2c04808] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Prodrugs have little or no pharmacological activity and are converted to active drugs in the body by enzymes, metabolic reactions, or through human-controlled actions. However, prodrugs promoting their chemical bioconversion without any of these processes have not been reported before. Here, we present an enzyme-independent prodrug activation mechanism by boron-based compounds (benzoxaboroles) targeting leucyl-tRNA synthetase (LeuRS), including an antibiotic that recently has completed phase II clinical trials to cure tuberculosis. We combine nuclear magnetic resonance spectroscopy and X-ray crystallography with isothermal titration calorimetry to show that these benzoxaboroles do not bind directly to their drug target LeuRS, instead they are prodrugs that activate their bioconversion by forming a highly specific and reversible LeuRS inhibition adduct with ATP, AMP, or the terminal adenosine of the tRNALeu. We demonstrate how the oxaborole group of the prodrugs cyclizes with the adenosine ribose at physiological concentrations to form the active molecule. This bioconversion mechanism explains the remarkably good druglike properties of benzoxaboroles showing efficacy against radically different human pathogens and fully explains the mechanism of action of these compounds. Thus, this adenosine-dependent activation mechanism represents a novel concept in prodrug chemistry that can be applied to improve the solubility, permeability and metabolic stability of challenging drugs.
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Affiliation(s)
- Guillaume Hoffmann
- Institute
for Advanced Biosciences (IAB), Structural Biology of Novel Targets
in Human Diseases, INSERM U1209, CNRS UMR5309, Université Grenoble
Alpes, 38000 Grenoble, France
| | - Madalen Le Gorrec
- Institute
for Advanced Biosciences (IAB), Structural Biology of Novel Targets
in Human Diseases, INSERM U1209, CNRS UMR5309, Université Grenoble
Alpes, 38000 Grenoble, France
| | - Emeline Mestdach
- Centre
de Résonance Magnétique Nucléaire à Très
Hauts Champs, (CRMN), UMR 5082, CNRS, ENS Lyon, UCBL, Université
de Lyon, 69100 Villeurbanne, France
| | - Stephen Cusack
- European
Molecular Biology Laboratory, 38042 Grenoble, France
| | - Loïc Salmon
- Centre
de Résonance Magnétique Nucléaire à Très
Hauts Champs, (CRMN), UMR 5082, CNRS, ENS Lyon, UCBL, Université
de Lyon, 69100 Villeurbanne, France
| | | | - Andrés Palencia
- Institute
for Advanced Biosciences (IAB), Structural Biology of Novel Targets
in Human Diseases, INSERM U1209, CNRS UMR5309, Université Grenoble
Alpes, 38000 Grenoble, France,
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11
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Roy B, Navarro V, Peyrottes S. Prodrugs of Nucleoside 5'-Monophosphate Analogues: Overview of the Recent Literature Concerning their Synthesis and Applications. Curr Med Chem 2023; 30:1256-1303. [PMID: 36093825 DOI: 10.2174/0929867329666220909122820] [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: 04/20/2022] [Revised: 07/21/2022] [Accepted: 08/02/2022] [Indexed: 11/22/2022]
Abstract
Nucleoside analogues are widely used as anti-infectious and antitumoral agents. However, their clinical use may face limitations associated with their physicochemical properties, pharmacokinetic parameters, and/or their peculiar mechanisms of action. Indeed, once inside the cells, nucleoside analogues require to be metabolized into their corresponding (poly-)phosphorylated derivatives, mediated by cellular and/or viral kinases, in order to interfere with nucleic acid biosynthesis. Within this activation process, the first-phosphorylation step is often the limiting one and to overcome this limitation, numerous prodrug approaches have been proposed. Herein, we will focus on recent literature data (from 2015 and onwards) related to new prodrug strategies, the development of original synthetic approaches and novel applications of nucleotide prodrugs (namely pronucleotides) leading to the intracellular delivery of 5'-monophosphate nucleoside analogues.
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Affiliation(s)
- Béatrice Roy
- Team Nucleosides & Phosphorylated Effectors, Institute for Biomolecules Max Mousseron (IBMM), University of Montpellier, Route de Mende, 34293 Montpellier, France
| | - Valentin Navarro
- Team Nucleosides & Phosphorylated Effectors, Institute for Biomolecules Max Mousseron (IBMM), University of Montpellier, Route de Mende, 34293 Montpellier, France
| | - Suzanne Peyrottes
- Team Nucleosides & Phosphorylated Effectors, Institute for Biomolecules Max Mousseron (IBMM), University of Montpellier, Route de Mende, 34293 Montpellier, France
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12
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Shapiro RL, DeLong K, Zulfiqar F, Carter D, Better M, Ensign LM. In vitro and ex vivo models for evaluating vaginal drug delivery systems. Adv Drug Deliv Rev 2022; 191:114543. [PMID: 36208729 PMCID: PMC9940824 DOI: 10.1016/j.addr.2022.114543] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 08/26/2022] [Accepted: 09/13/2022] [Indexed: 01/24/2023]
Abstract
Vaginal drug delivery systems are often preferred for treating a variety of diseases and conditions of the female reproductive tract (FRT), as delivery can be more targeted with less systemic side effects. However, there are many anatomical and biological barriers to effective treatment via the vaginal route. Further, biocompatibility with the local tissue and microbial microenvironment is desired. A variety of in vitro and ex vivo models are described herein for evaluating the physicochemical properties and toxicity profile of vaginal drug delivery systems. Deciding whether to utilize organoids in vitro or fresh human cervicovaginal mucus ex vivo requires careful consideration of the intended use and the formulation characteristics. Optimally, in vitro and ex vivo experimentation will inform or predict in vivo performance, and examples are given that describe utilization of a range of methods from in vitro to in vivo. Lastly, we highlight more advanced model systems for other mucosa as inspiration for the future in model development for the FRT.
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Affiliation(s)
- Rachel L Shapiro
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, 400 N Broadway, Baltimore, MD 21231, USA; Department of Chemical & Biomolecular Engineering, Johns Hopkins University, 3400 N Charles St., Baltimore, MD 21218, USA.
| | - Kevin DeLong
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, 400 N Broadway, Baltimore, MD 21231, USA; Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, 1800 Orleans St., Baltimore, MD 21287, USA.
| | - Fareeha Zulfiqar
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, 400 N Broadway, Baltimore, MD 21231, USA; Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, 1800 Orleans St., Baltimore, MD 21287, USA.
| | - Davell Carter
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, 400 N Broadway, Baltimore, MD 21231, USA; Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, 725 N Wolfe St., Baltimore, MD 21287, USA.
| | - Marina Better
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, 400 N Broadway, Baltimore, MD 21231, USA; Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, 725 N Wolfe St., Baltimore, MD 21287, USA.
| | - Laura M Ensign
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, 400 N Broadway, Baltimore, MD 21231, USA; Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, 1800 Orleans St., Baltimore, MD 21287, USA; Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, 725 N Wolfe St., Baltimore, MD 21287, USA; Department of Chemical & Biomolecular Engineering, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA; Departments of Gynecology and Obstetrics, Infectious Diseases, and Oncology, Johns Hopkins University School of Medicine, 1800 Orleans St., Baltimore, MD 21287, USA; Department of Biomedical Engineering, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA.
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13
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Lai J, Wang M, Hu W, Yue H, Yu E, Zhang X, Zhou Y, Xia L, Ling X, Wang H, Li F, Li Q. Synthesis and biological evaluation of 20(S)-substituted FL118 conjugates as novel antitumor agents. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Mosayebnia M, Hajiagha Bozorgi A, Rezaeianpour M, Kobarfard F. In silico prediction of SARS-CoV-2 main protease and polymerase inhibitors: 3D-Pharmacophore modelling. J Biomol Struct Dyn 2022; 40:6569-6586. [PMID: 33599180 PMCID: PMC7898304 DOI: 10.1080/07391102.2021.1886991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 02/02/2021] [Indexed: 01/18/2023]
Abstract
The outbreak of the second severe acute respiratory syndrome coronavirus (SARS-CoV-2) known as COVID-19 has caused global concern. No effective vaccine or treatment to control the virus has been approved yet. Social distancing and precautionary protocols are still the only way to prevent person-to-person transmission. We hope to identify anti-COVID-19 activity of the existing drugs to overcome this pandemic as soon as possible. The present study used HEX and AutoDock Vina softwares to predict the affinity of about 100 medicinal structures toward the active site of 3-chymotrypsin-like protease (3Clpro) and RNA-dependent RNA polymerase (RdRp), separately. Afterwards, MOE software and the pharmacophore-derived query methodology were employed to determine the pharmacophore model of their inhibitors. Tegobuvir (19) and compound 45 showed the best binding affinity toward RdRp and 3Clpro of SARS-CoV-2 in silico, respectively. Tegobuvir -previously applied for hepatitis C virus- formed highly stable complex with uncommon binding pocket of RdRp (E total: -707.91 Kcal/mol) in silico. In addition to compound 45, tipranavir (28) and atazanavir (26) as FDA-approved HIV protease inhibitors were tightly interacted with the active site of SARS-CoV-2 main protease as well. Based on pharmacophore modelling, a good structural pattern for potent candidates against SARS-CoV-2 main enzymes is suggested. Re-tasking or taking inspiration from the structures of tegobuvir and tipranavir can be a proper approach toward coping with the COVID-19 in the shortest possible time and at the lowest cost.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Mona Mosayebnia
- Department of Radiopharmacy and Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Atefeh Hajiagha Bozorgi
- Department of Medicinal Chemistry, Faculty of Pharmacy, Alborz University of Medical Sciences, Karaj, Iran
| | - Maliheh Rezaeianpour
- Chronic Respiratory Diseases Research Center, National Research Institute of Tuberclosis and Lung Diseases (NRTLD), Shahid Beheshti University of Medical sciences, Tehran, Iran
| | - Farzad Kobarfard
- Department of Radiopharmacy and Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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15
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Abstract
The COVID-19 pandemic has highlighted the need to identify additional antiviral small molecules to complement existing therapies. Although increasing evidence suggests that metabolites produced by the human microbiome have diverse biological activities, their antiviral properties remain poorly explored. Using a cell-based SARS-CoV-2 infection assay, we screened culture broth extracts from a collection of phylogenetically diverse human-associated bacteria for the production of small molecules with antiviral activity. Bioassay-guided fractionation uncovered three bacterial metabolites capable of inhibiting SARS-CoV-2 infection. This included the nucleoside analogue N6-(Δ2-isopentenyl)adenosine, the 5-hydroxytryptamine receptor agonist tryptamine, and the pyrazine 2,5-bis(3-indolylmethyl)pyrazine. The most potent of these, N6-(Δ2-isopentenyl)adenosine, had a 50% inhibitory concentration (IC50) of 2 μM. These natural antiviral compounds exhibit structural and functional similarities to synthetic drugs that have been clinically examined for use against COVID-19. Our discovery of structurally diverse metabolites with anti-SARS-CoV-2 activity from screening a small fraction of the bacteria reported to be associated with the human microbiome suggests that continued exploration of phylogenetically diverse human-associated bacteria is likely to uncover additional small molecules that inhibit SARS-CoV-2 as well as other viral infections. IMPORTANCE The continued prevalence of COVID-19 and the emergence of new variants has once again put the spotlight on the need for the identification of SARS-CoV-2 antivirals. The human microbiome produces an array of small molecules with bioactivities (e.g., host receptor ligands), but its ability to produce antiviral small molecules is relatively underexplored. Here, using a cell-based screening platform, we describe the isolation of three microbiome-derived metabolites that are able to prevent SARS-CoV-2 infection in vitro. These molecules display structural similarities to synthetic drugs that have been explored for the treatment of COVID-19, and these results suggest that the microbiome may be a fruitful source of the discovery of small molecules with antiviral activities.
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16
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Berney M, T Manoj M, Fay EM, McGouran JF. 5'-Phosphorylation Increases the Efficacy of Nucleoside Inhibitors of the DNA Repair Enzyme SNM1A. ChemMedChem 2021; 17:e202100603. [PMID: 34905656 DOI: 10.1002/cmdc.202100603] [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: 09/15/2021] [Revised: 12/07/2021] [Indexed: 11/11/2022]
Abstract
Certain cancers exhibit upregulation of DNA interstrand crosslink repair pathways, which contributes to resistance to crosslinking chemotherapy drugs and poor prognoses. Inhibition of enzymes implicated in interstrand crosslink repair is therefore a promising strategy for improving the efficacy of cancer treatment. One such target enzyme is SNM1A, a zinc co-ordinating 5'-3' exonuclease. Previous studies have demonstrated the feasibility of inhibiting SNM1A using modified nucleosides appended with zinc-binding groups. In this work, we sought to develop more effective SNM1A inhibitors by exploiting interactions with the phosphate-binding pocket adjacent to the enzyme's active site, in addition to the catalytic zinc ions. A series of nucleoside derivatives bearing phosphate moieties at the 5'-position, as well as zinc-binding groups at the 3'-position, were prepared and tested in gel-electrophoresis and real-time fluorescence assays. As well as investigating novel zinc-binding groups, we found that incorporation of a 5'-phosphate dramatically increased the potency of the inhibitors.
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Affiliation(s)
- Mark Berney
- Trinity College Dublin: The University of Dublin Trinity College, Chemistry, IRELAND
| | - Manav T Manoj
- Trinity College Dublin: The University of Dublin Trinity College, Chemistry, IRELAND
| | - Ellen Mary Fay
- Trinity College Dublin: The University of Dublin Trinity College, Chemistry, IRELAND
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17
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Glyceric Prodrug of Ursodeoxycholic Acid (UDCA): Novozym 435-Catalyzed Synthesis of UDCA-Monoglyceride. Molecules 2021; 26:molecules26195966. [PMID: 34641510 PMCID: PMC8513054 DOI: 10.3390/molecules26195966] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 09/27/2021] [Accepted: 09/30/2021] [Indexed: 11/23/2022] Open
Abstract
Bile acids (BAs) are a family of steroids synthesized from cholesterol in the liver. Among bile acids, ursodeoxycholic acid (UDCA) is the drug of choice for treating primary biliary cirrhosis and dissolving cholesterol gallstones. The clinical effectiveness of UDCA includes its choleretic activity, the capability to inhibit hydrophobic bile acid absorption by the intestine under cholestatic conditions, reducing cholangiocyte injury, stimulation of impaired biliary output, and inhibition of hepatocyte apoptosis. Despite its clinical effectiveness, UDCA is poorly soluble in the gastro-duodeno-jejunal contents, and pharmacological doses of UDCA are not readily soluble in the stomach and intestine, resulting in incomplete absorption. Indeed, the solubility of 20 mg/L greatly limits the bioavailability of UDCA. Since the bioavailability of drug products plays a critical role in the design of oral administration dosages, we investigated the enzymatic esterification of UDCA as a strategy of hydrophilization. Therefore, we decided to enzymatically synthesize a glyceric ester of UDCA bile acid to produce a more water-soluble molecule. The esterification reactions between UDCA and glycerol were performed with an immobilized lipase B from Candida antarctica (Novozym 435) in solvent-free and solvent-assisted systems. The characterization of the UDCA-monoglyceride, enzymatically synthesized, has been performed by 1H-NMR, 13C-NMR, COSY, HSQC, HMBC, IR, and MS spectroscopy.
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18
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Kell DB. The Transporter-Mediated Cellular Uptake and Efflux of Pharmaceutical Drugs and Biotechnology Products: How and Why Phospholipid Bilayer Transport Is Negligible in Real Biomembranes. Molecules 2021; 26:5629. [PMID: 34577099 PMCID: PMC8470029 DOI: 10.3390/molecules26185629] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/03/2021] [Accepted: 09/14/2021] [Indexed: 12/12/2022] Open
Abstract
Over the years, my colleagues and I have come to realise that the likelihood of pharmaceutical drugs being able to diffuse through whatever unhindered phospholipid bilayer may exist in intact biological membranes in vivo is vanishingly low. This is because (i) most real biomembranes are mostly protein, not lipid, (ii) unlike purely lipid bilayers that can form transient aqueous channels, the high concentrations of proteins serve to stop such activity, (iii) natural evolution long ago selected against transport methods that just let any undesirable products enter a cell, (iv) transporters have now been identified for all kinds of molecules (even water) that were once thought not to require them, (v) many experiments show a massive variation in the uptake of drugs between different cells, tissues, and organisms, that cannot be explained if lipid bilayer transport is significant or if efflux were the only differentiator, and (vi) many experiments that manipulate the expression level of individual transporters as an independent variable demonstrate their role in drug and nutrient uptake (including in cytotoxicity or adverse drug reactions). This makes such transporters valuable both as a means of targeting drugs (not least anti-infectives) to selected cells or tissues and also as drug targets. The same considerations apply to the exploitation of substrate uptake and product efflux transporters in biotechnology. We are also beginning to recognise that transporters are more promiscuous, and antiporter activity is much more widespread, than had been realised, and that such processes are adaptive (i.e., were selected by natural evolution). The purpose of the present review is to summarise the above, and to rehearse and update readers on recent developments. These developments lead us to retain and indeed to strengthen our contention that for transmembrane pharmaceutical drug transport "phospholipid bilayer transport is negligible".
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Affiliation(s)
- Douglas B. Kell
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Crown St, Liverpool L69 7ZB, UK;
- Novo Nordisk Foundation Centre for Biosustainability, Technical University of Denmark, Building 220, Kemitorvet, 2800 Kgs Lyngby, Denmark
- Mellizyme Biotechnology Ltd., IC1, Liverpool Science Park, Mount Pleasant, Liverpool L3 5TF, UK
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Tang L, Li J, Zhao Q, Pan T, Zhong H, Wang W. Advanced and Innovative Nano-Systems for Anticancer Targeted Drug Delivery. Pharmaceutics 2021; 13:pharmaceutics13081151. [PMID: 34452113 PMCID: PMC8398618 DOI: 10.3390/pharmaceutics13081151] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/18/2021] [Accepted: 07/23/2021] [Indexed: 12/16/2022] Open
Abstract
The encapsulation of therapeutic agents into nano-based drug delivery system for cancer treatment has received considerable attention in recent years. Advancements in nanotechnology provide an opportunity for efficient delivery of anticancer drugs. The unique properties of nanoparticles not only allow cancer-specific drug delivery by inherent passive targeting phenomena and adopting active targeting strategies, but also improve the pharmacokinetics and bioavailability of the loaded drugs, leading to enhanced therapeutic efficacy and safety compared to conventional treatment modalities. Small molecule drugs are the most widely used anticancer agents at present, while biological macromolecules, such as therapeutic antibodies, peptides and genes, have gained increasing attention. Therefore, this review focuses on the recent achievements of novel nano-encapsulation in targeted drug delivery. A comprehensive introduction of intelligent delivery strategies based on various nanocarriers to encapsulate small molecule chemotherapeutic drugs and biological macromolecule drugs in cancer treatment will also be highlighted.
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Affiliation(s)
- Lu Tang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (L.T.); (J.L.); (Q.Z.); (T.P.)
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing 210009, China
| | - Jing Li
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (L.T.); (J.L.); (Q.Z.); (T.P.)
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing 210009, China
| | - Qingqing Zhao
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (L.T.); (J.L.); (Q.Z.); (T.P.)
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing 210009, China
| | - Ting Pan
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (L.T.); (J.L.); (Q.Z.); (T.P.)
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing 210009, China
| | - Hui Zhong
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Correspondence: (H.Z.); (W.W.)
| | - Wei Wang
- State Key Laboratory of Natural Medicines, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (L.T.); (J.L.); (Q.Z.); (T.P.)
- NMPA Key Laboratory for Research and Evaluation of Pharmaceutical Preparations and Excipients, China Pharmaceutical University, Nanjing 210009, China
- Correspondence: (H.Z.); (W.W.)
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Chen R, Wang T, Song J, Pu D, He D, Li J, Yang J, Li K, Zhong C, Zhang J. Antiviral Drug Delivery System for Enhanced Bioactivity, Better Metabolism and Pharmacokinetic Characteristics. Int J Nanomedicine 2021; 16:4959-4984. [PMID: 34326637 PMCID: PMC8315226 DOI: 10.2147/ijn.s315705] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 07/11/2021] [Indexed: 12/11/2022] Open
Abstract
Antiviral drugs (AvDs) are the primary resource in the global battle against viruses, including the recent fight against corona virus disease 2019 (COVID-19). Most AvDs require multiple medications, and their use frequently leads to drug resistance, since they have poor oral bioavailability and low efficacy due to their low solubility/low permeability. Characterizing the in vivo metabolism and pharmacokinetic characteristics of AvDs may help to solve the problems associated with AvDs and enhance their efficacy. In this review of AvDs, we systematically investigated their structure-based metabolic reactions and related enzymes, their cellular pharmacology, and the effects of metabolism on AvD pharmacodynamics and pharmacokinetics. We further assessed how delivery systems achieve better metabolism and pharmacology of AvDs. This review suggests that suitable nanosystems may help to achieve better pharmacological activity and pharmacokinetic behavior of AvDs by altering drug metabolism through the utilization of advanced nanotechnology and appropriate administration routes. Notably, such AvDs as ribavirin, remdesivir, favipiravir, chloroquine, lopinavir and ritonavir have been confirmed to bind to the severe acute respiratory syndrome-like coronavirus (SARS-CoV-2) receptor and thus may represent anti-COVID-19 treatments. Elucidating the metabolic and pharmacokinetic characteristics of AvDs may help pharmacologists to identify new formulations with high bioavailability and efficacy and help physicians to better treat virus-related diseases, including COVID-19.
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Affiliation(s)
- Ran Chen
- Chongqing Research Center for Pharmaceutical Engineering, School of Pharmacy, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Tingting Wang
- Biochemistry and Molecular Biology Laboratory, Experimental Teaching and Management Center, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Jie Song
- Chongqing Research Center for Pharmaceutical Engineering, School of Pharmacy, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Daojun Pu
- Pharmaceutical Institute, Southwest Pharmaceutical Limited Company, Chongqing, 400038, People's Republic of China
| | - Dan He
- Chongqing Research Center for Pharmaceutical Engineering, School of Pharmacy, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Jianjun Li
- Chongqing Research Center for Pharmaceutical Engineering, School of Pharmacy, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Jie Yang
- Chongqing Research Center for Pharmaceutical Engineering, School of Pharmacy, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Kailing Li
- Chongqing Research Center for Pharmaceutical Engineering, School of Pharmacy, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Cailing Zhong
- Chongqing Research Center for Pharmaceutical Engineering, School of Pharmacy, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Jingqing Zhang
- Chongqing Research Center for Pharmaceutical Engineering, School of Pharmacy, Chongqing Medical University, Chongqing, 400016, People's Republic of China
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21
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Relaño-Rodríguez I, Muñoz-Fernández MÁ. Emergence of Nanotechnology to Fight HIV Sexual Transmission: The Trip of G2-S16 Polyanionic Carbosilane Dendrimer to Possible Pre-Clinical Trials. Int J Mol Sci 2020; 21:ijms21249403. [PMID: 33321835 PMCID: PMC7764023 DOI: 10.3390/ijms21249403] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/04/2020] [Accepted: 12/07/2020] [Indexed: 12/11/2022] Open
Abstract
Development of new, safe, and effective microbicides to prevent human immunodeficiency virus HIV sexual transmission is needed. Unfortunately, most microbicides proved ineffective to prevent the risk of HIV-infection in clinical trials. We are working with G2-S16 polyanionic carbosilane dendrimer (PCD) as a new possible vaginal topical microbicide, based on its short reaction times, wide availability, high reproducibility, and quantitative yields of reaction. G2-S16 PCD exerts anti-HIV activity at an early stage of viral replication, by blocking gp120/CD4/CCR5 interaction, and providing a barrier against infection for long periods of time. G2-S16 PCD was stable at different pH values, as well as in the presence of seminal fluids. It maintained the anti-HIV activity against R5/X4 HIV over time, did not generate any type of drug resistance, and retained the anti-HIV effect when exposed to semen-enhanced viral infection. Importantly, G2-S16 PCD did not modify vaginal microbiota neither in vitro or in vivo. Histopathological examination did not show vaginal irritation, inflammation, lesions, or damage in the vaginal mucosa, after administration of G2-S16 PCD at different concentrations and times in female mice and rabbit animal models. Based on these promising data, G2-S16 PCD could become a good, safe, and readily available candidate to use as a topical vaginal microbicide against HIV.
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Affiliation(s)
- Ignacio Relaño-Rodríguez
- Head Section of Immunology, Molecular Immunology Laboratory, General Universitary Hospital Gregorio Marañón, C/Dr. Esquerdo 46, 28007 Madrid, Spain;
| | - Maria Ángeles Muñoz-Fernández
- Head Section of Immunology, Molecular Immunology Laboratory, General Universitary Hospital Gregorio Marañón, C/Dr. Esquerdo 46, 28007 Madrid, Spain;
- Health Research Institute Gregorio Marañon (IiSGM), C/Dr. Esquerdo 46, 28007 Madrid, Spain
- Spanish HIV HGM BioBank, C/Dr. Esquerdo 46, 28007 Madrid, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), C/Dr. Esquerdo 46, 28007 Madrid, Spain
- Correspondence: or ; Tel.: +34-91-586-8565
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22
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Brandariz-Nuñez A, Robinson SJ, Evilevitch A. Pressurized DNA state inside herpes capsids-A novel antiviral target. PLoS Pathog 2020; 16:e1008604. [PMID: 32702029 PMCID: PMC7377361 DOI: 10.1371/journal.ppat.1008604] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 05/05/2020] [Indexed: 01/25/2023] Open
Abstract
Drug resistance in viruses represents one of the major challenges of healthcare. As part of an effort to provide a treatment that avoids the possibility of drug resistance, we discovered a novel mechanism of action (MOA) and specific compounds to treat all nine human herpesviruses and animal herpesviruses. The novel MOA targets the pressurized genome state in a viral capsid, "turns off" capsid pressure, and blocks viral genome ejection into a cell nucleus, preventing viral replication. This work serves as a proof-of-concept to demonstrate the feasibility of a new antiviral target-suppressing pressure-driven viral genome ejection-that is likely impervious to developing drug resistance. This pivotal finding presents a platform for discovery of a new class of broad-spectrum treatments for herpesviruses and other viral infections with genome-pressure-dependent replication. A biophysical approach to antiviral treatment such as this is also a vital strategy to prevent the spread of emerging viruses where vaccine development is challenged by high mutation rates or other evasion mechanisms.
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Affiliation(s)
- Alberto Brandariz-Nuñez
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
| | - Scott J. Robinson
- Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
| | - Alex Evilevitch
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
- Department of Experimental Medical Science, Lund University, Lund, Sweden
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23
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Jiang J, Zhang D, Zhao D, Qiao L, Li N, Yu K, He J, Zhang H. Rapid Determination of Adenine Arabinoside Monophosphate in Pharmaceutical Injections by Droplet Spray Ionization – Tandem Mass Spectrometry (DSI-MS/MS). ANAL LETT 2019. [DOI: 10.1080/00032719.2019.1613423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Jie Jiang
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, China
| | - Dongmei Zhang
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, China
| | - Dandan Zhao
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, China
| | - Lina Qiao
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Na Li
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, China
| | - Kai Yu
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, China
| | - Jing He
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, China
| | - Hong Zhang
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, China
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24
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Soni D, Bade AN, Gautam N, Herskovitz J, Ibrahim IM, Smith N, Wojtkiewicz MS, Dyavar Shetty BL, Alnouti Y, McMillan J, Gendelman HE, Edagwa BJ. Synthesis of a long acting nanoformulated emtricitabine ProTide. Biomaterials 2019; 222:119441. [PMID: 31472458 DOI: 10.1016/j.biomaterials.2019.119441] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 08/04/2019] [Accepted: 08/19/2019] [Indexed: 01/20/2023]
Abstract
While antiretroviral therapy (ART) has revolutionized treatment and prevention of human immunodeficiency virus type one (HIV-1) infection, regimen adherence, viral mutations, drug toxicities and access stigma and fatigue are treatment limitations. These have led to new opportunities for the development of long acting (LA) ART including implantable devices and chemical drug modifications. Herein, medicinal and formulation chemistry were used to develop LA prodrug nanoformulations of emtricitabine (FTC). A potent lipophilic FTC phosphoramidate prodrug (M2FTC) was synthesized then encapsulated into a poloxamer surfactant (NM2FTC). These modifications extended the biology, apparent drug half-life and antiretroviral activities of the formulations. NM2FTC demonstrated a >30-fold increase in macrophage and CD4+ T cell drug uptake with efficient conversion to triphosphates (FTC-TP). Intracellular FTC-TP protected macrophages against an HIV-1 challenge for 30 days. A single intramuscular injection of NM2FTC, at 45 mg/kg native drug equivalents, into Sprague Dawley rats resulted in sustained prodrug levels in blood, liver, spleen and lymph nodes and FTC-TP in lymph node and spleen cells at one month. In contrast, native FTC-TPs was present for one day. These results are an advance in the transformation of FTC into a LA agent.
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Affiliation(s)
- Dhruvkumar Soni
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA; Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Aditya N Bade
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Nagsen Gautam
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Jonathan Herskovitz
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Ibrahim M Ibrahim
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Nathan Smith
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Melinda S Wojtkiewicz
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Bhagya Laxmi Dyavar Shetty
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Yazen Alnouti
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - JoEllyn McMillan
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Howard E Gendelman
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68198, USA; Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA.
| | - Benson J Edagwa
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198, USA.
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25
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Heidel KM, Dowd CS. Phosphonate prodrugs: an overview and recent advances. Future Med Chem 2019; 11:1625-1643. [PMID: 31469328 PMCID: PMC6722485 DOI: 10.4155/fmc-2018-0591] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 03/29/2019] [Indexed: 01/04/2023] Open
Abstract
Phosphonates, often used as isosteric replacements for phosphates, can provide important interactions with an enzyme. Due to their high charge at physiological pH, however, permeation into cells can be a challenge. Protecting phosphonates as prodrugs has shown promise in drug delivery. Thus, a variety of structures and cleavage/activation mechanisms exist, enabling release of the active compound. This review describes the structural diversity of these pro-moieties, relevant cleavage mechanisms and recent advances in the design of phosphonate prodrugs.
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Affiliation(s)
- Kenneth M Heidel
- Department of Chemistry, George Washington University, Washington, DC 20052, USA
| | - Cynthia S Dowd
- Department of Chemistry, George Washington University, Washington, DC 20052, USA
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26
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Najjar A, Karaman R. Successes, failures, and future prospects of prodrugs and their clinical impact. Expert Opin Drug Discov 2019; 14:199-220. [DOI: 10.1080/17460441.2019.1567487] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Anas Najjar
- Department of Bioorganic & Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Quds University, Jerusalem, Palestine
| | - Rafik Karaman
- Department of Bioorganic & Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Quds University, Jerusalem, Palestine
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27
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Affiliation(s)
- Anas Najjar
- Department of Bioorganic & Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Quds University, Jerusalem, Palestine
| | - Rafik Karaman
- Department of Bioorganic & Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Quds University, Jerusalem, Palestine
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28
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Abstract
Transition state theory teaches that chemically stable mimics of enzymatic transition states will bind tightly to their cognate enzymes. Kinetic isotope effects combined with computational quantum chemistry provides enzymatic transition state information with sufficient fidelity to design transition state analogues. Examples are selected from various stages of drug development to demonstrate the application of transition state theory, inhibitor design, physicochemical characterization of transition state analogues, and their progress in drug development.
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Affiliation(s)
- Vern L. Schramm
- Department of Biochemistry, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, New York 10461, United States
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29
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Rabbad AH, Agoni C, Olotu FA, Soliman ME. Microbes, not humans: exploring the molecular basis of Pseudouridimycin selectivity towards bacterial and not human RNA polymerase. Biotechnol Lett 2018; 41:115-128. [PMID: 30377869 DOI: 10.1007/s10529-018-2617-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 10/24/2018] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Bacterial RNA polymerase (bRNAP) represent a crucial target for curtailing microbial activity but its structural and sequence similarities with human RNA polymerase II (hRNAPII) makes it difficult to target. Recently, Pseudouridimycin (PUM), a novel nucleoside analogue was reported to selectively inhibit bRNAP and not hRNAP. Till date, underlying mechanisms of PUM selectivity remains unresolved, hence the aim of this study. RESULTS Using sequence alignment method, we observed that the β' of bRNAP and the RPB1 subunits of hRNAPII were highly conserved while the β and RPB2 subunits of both proteins were also characterized by high sequence variations. Furthermore, the impact of these variations on the differential binding of PUM was evaluated using MMPB/SA binding free energy and per-residue decomposition analysis. These revealed that PUM binds better to bRNAP than hRNAP with prominent bRNAP active site residues that contributed the most to PUM binding and stabilization lacking in hRNAPII active site due to positional substitution. Also, the binding of PUM to hRNAP was characterized by the formation of unfavorable interactions. In addition, PUM assumed favorable orientations that possibly enhanced its mobility towards the hydrophobic core region of bRNAP. On the contrary, unfavorable intramolecular interactions characterize PUM orientations at the binding site of hRNAPII, which could restrict its movement due to electrostatic repulsions. CONCLUSION These findings would enhance the design of potent and selective drugs for broad-spectrum antimicrobial activity.
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Affiliation(s)
- Ali H Rabbad
- Molecular Bio-Computation Drug Design Research Group, School of Health Sciences, University of KwaZulu Natal, Westville Campus, Durban, 4001, South Africa
| | - Clement Agoni
- Molecular Bio-Computation Drug Design Research Group, School of Health Sciences, University of KwaZulu Natal, Westville Campus, Durban, 4001, South Africa
| | - Fisayo A Olotu
- Molecular Bio-Computation Drug Design Research Group, School of Health Sciences, University of KwaZulu Natal, Westville Campus, Durban, 4001, South Africa
| | - Mahmoud E Soliman
- Molecular Bio-Computation Drug Design Research Group, School of Health Sciences, University of KwaZulu Natal, Westville Campus, Durban, 4001, South Africa.
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30
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Nanjo T, Kato N, Takemoto Y. Oxidative Decarboxylation Enables Chemoselective, Racemization-Free Esterification: Coupling of α-Ketoacids and Alcohols Mediated by Hypervalent Iodine(III). Org Lett 2018; 20:5766-5769. [PMID: 30168722 DOI: 10.1021/acs.orglett.8b02466] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An α-ketoacid could be converted into a reactive acylating agent by treatment with hypervalent iodine(III) species, and in so doing, we discovered a novel decarboxylative acylation of alcohols that affords a variety of esters in excellent yields. The esterification has been applied to a sterol bearing a free carboxylic acid and shows unique chemoselectivity. The procedure is racemization-free and operates under mild conditions.
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Affiliation(s)
- Takeshi Nanjo
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
| | - Natsuki Kato
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
| | - Yoshiji Takemoto
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
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31
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Krol E, Wandzik I, Pastuch-Gawolek G, Szewczyk B. Anti-Hepatitis C Virus Activity of Uridine Derivatives of 2-Deoxy Sugars. Molecules 2018; 23:molecules23071547. [PMID: 29954068 PMCID: PMC6099588 DOI: 10.3390/molecules23071547] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 06/22/2018] [Accepted: 06/26/2018] [Indexed: 12/16/2022] Open
Abstract
Hepatitis C virus (HCV), the etiological agent of the most common and dangerous diseases of the liver, is a major health problem worldwide. Despite many attempts, there is still no vaccine available. Although many drugs have been approved for use mostly in combination regimen, their high costs make them out of reach in less developed regions. Previously, we have synthesized a series of compounds belonging to uridine derivatives of 2-deoxy sugars and have proved that some of them possess antiviral activity against influenza A virus associated with N-glycosylation inhibition. Here, we analyze the antiviral properties of these compounds against HCV. Using cell culture-derived HCV (HCVcc), HCV pseudoparticles (HCVpp), and replicon cell lines, we have shown high anti-HCV activity of two compounds. Our results indicated that compounds 2 and 4 significantly reduced HCVcc propagation with IC50 values in low μM range. Further experiments using the HCVpp system confirmed that both compounds significantly impaired the infectivity of produced HCVpp due to the inhibition of the correct maturation of viral glycoproteins. Overall, our results suggest that inhibiting the glycosylation process might be a good target for new therapeutics not only against HCV, but other important viral pathogens which contain envelopes with highly glycosylated proteins.
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Affiliation(s)
- Ewelina Krol
- Department of Recombinant Vaccines, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Abrahama 58, 80-307 Gdansk, Poland.
| | - Ilona Wandzik
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Faculty of Chemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland.
- Biotechnology Center, Silesian University of Technology, Krzywoustego 8, 44-100 Gliwice, Poland.
| | - Gabriela Pastuch-Gawolek
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Faculty of Chemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland.
- Biotechnology Center, Silesian University of Technology, Krzywoustego 8, 44-100 Gliwice, Poland.
| | - Boguslaw Szewczyk
- Department of Recombinant Vaccines, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Abrahama 58, 80-307 Gdansk, Poland.
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Zeiadeh I, Najjar A, Karaman R. Strategies for Enhancing the Permeation of CNS-Active Drugs through the Blood-Brain Barrier: A Review. Molecules 2018; 23:molecules23061289. [PMID: 29843371 PMCID: PMC6100436 DOI: 10.3390/molecules23061289] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 05/22/2018] [Accepted: 05/24/2018] [Indexed: 01/03/2023] Open
Abstract
Background: The blood brain barrier (BBB) is a dynamic and functional structure which poses a vast challenge in the development of drugs acting on the central nervous system (CNS). While most substances are denied BBB crossing, selective penetration of substances mainly occurs through diffusion, carrier mediated transport, or receptor mediated transcytosis. Methods: Strategies in enhancing BBB penetration have been reviewed and summarized in accordance with their type of formulation. Highlights in monoclonal antibodies, peptide-vectors, nanoparticles, and simple prodrugs were included. Conclusion: Nanoparticles and simple prodrugs, for example, can be used for efficient BBB penetration through inhibition of efflux mechanisms, however, monoclonal antibodies are the most promising strategy in BBB penetration. Close follow-up of future development in this area should confirm our expectation.
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Affiliation(s)
- Isra' Zeiadeh
- Department of Bioorganic & Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Quds University, Jerusalem P.O. Box 20002, Palestine.
| | - Anas Najjar
- Department of Bioorganic & Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Quds University, Jerusalem P.O. Box 20002, Palestine.
| | - Rafik Karaman
- Department of Bioorganic & Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Quds University, Jerusalem P.O. Box 20002, Palestine.
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33
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Involvement of CYP4F2 in the Metabolism of a Novel Monophosphate Ester Prodrug of Gemcitabine and Its Interaction Potential In Vitro. Molecules 2018; 23:molecules23051195. [PMID: 29772747 PMCID: PMC6100113 DOI: 10.3390/molecules23051195] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 05/14/2018] [Accepted: 05/15/2018] [Indexed: 01/08/2023] Open
Abstract
Compound-3 is an oral monophosphate prodrug of gemcitabine. Previous data showed that Compound-3 was more potent than gemcitabine and it was orally active in a tumor xenograft model. In the present study, the metabolism of Compound-3 was investigated in several well-known in vitro matrices. While relatively stable in human and rat plasma, Compound-3 demonstrated noticeable metabolism in liver and intestinal microsomes in the presence of NADPH and human hepatocytes. Compound-3 could also be hydrolyzed by alkaline phosphatase, leading to gemcitabine formation. Metabolite identification using accurate mass- and information-based scan techniques revealed that Compound-3 was subjected to sequential metabolism, forming alcohol, aldehyde and carboxylic acid metabolites, respectively. Results from reaction phenotyping studies indicated that cytochrome P450 4F2 (CYP4F2) was a key CYP isozyme involved in Compound-3 metabolism. Interaction assays suggested that CYP4F2 activity could be inhibited by Compound-3 or an antiparasitic prodrug pafuramidine. Because CYP4F2 is a key CYP isozyme involved in the metabolism of eicosanoids and therapeutic drugs, clinical relevance of drug-drug interactions mediated via CYP4F2 inhibition warrants further investigation.
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34
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Huang B, Liu X, Tian Y, Kang D, Zhou Z, Daelemans D, De Clercq E, Pannecouque C, Zhan P, Liu X. First discovery of a potential carbonate prodrug of NNRTI drug candidate RDEA427 with submicromolar inhibitory activity against HIV-1 K103N/Y181C double mutant strain. Bioorg Med Chem Lett 2018. [DOI: 10.1016/j.bmcl.2018.03.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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35
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Tarasova O, Poroikov V. HIV Resistance Prediction to Reverse Transcriptase Inhibitors: Focus on Open Data. Molecules 2018; 23:E956. [PMID: 29671808 PMCID: PMC6017644 DOI: 10.3390/molecules23040956] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/16/2018] [Accepted: 04/17/2018] [Indexed: 12/16/2022] Open
Abstract
Research and development of new antiretroviral agents are in great demand due to issues with safety and efficacy of the antiretroviral drugs. HIV reverse transcriptase (RT) is an important target for HIV treatment. RT inhibitors targeting early stages of the virus-host interaction are of great interest for researchers. There are a lot of clinical and biochemical data on relationships between the occurring of the single point mutations and their combinations in the pol gene of HIV and resistance of the particular variants of HIV to nucleoside and non-nucleoside reverse transcriptase inhibitors. The experimental data stored in the databases of HIV sequences can be used for development of methods that are able to predict HIV resistance based on amino acid or nucleotide sequences. The data on HIV sequences resistance can be further used for (1) development of new antiretroviral agents with high potential for HIV inhibition and elimination and (2) optimization of antiretroviral therapy. In our communication, we focus on the data on the RT sequences and HIV resistance, which are available on the Internet. The experimental methods, which are applied to produce the data on HIV-1 resistance, the known data on their concordance, are also discussed.
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Affiliation(s)
- Olga Tarasova
- Institute of Biomedical Chemistry, 10 building 8, Pogodinskaya st., Moscow 119121, Russia.
| | - Vladimir Poroikov
- Institute of Biomedical Chemistry, 10 building 8, Pogodinskaya st., Moscow 119121, Russia.
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36
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Haddad F, Sawalha M, Khawaja Y, Najjar A, Karaman R. Dopamine and Levodopa Prodrugs for the Treatment of Parkinson's Disease. Molecules 2017; 23:E40. [PMID: 29295587 PMCID: PMC5943940 DOI: 10.3390/molecules23010040] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 12/18/2017] [Accepted: 12/20/2017] [Indexed: 12/12/2022] Open
Abstract
Background: Parkinson's disease is an aggressive and progressive neurodegenerative disorder that depletes dopamine (DA) in the central nervous system. Dopamine replacement therapy, mainly through actual dopamine and its original prodrug l-dopa (LD), faces many challenges such as poor blood brain barrier penetration and decreased response to therapy with time. Methods: The prodrugs described herein are ester, amide, dimeric amide, carrier-mediated, peptide transport-mediated, cyclic, chemical delivery systems and enzyme-models prodrugs designed and made by chemical means, and their bioavailability was studied in animals. Results: A promising ester prodrug for intranasal delivery has been developed. LD methyl ester is currently in Phase III clinical trials. A series of amide prodrugs were synthesized with better stability than ester prodrugs. Both amide and dimeric amide prodrugs offer enhanced blood brain barrier (BBB) penetration and better pharmacokinetics. Attaching LD to sugars has been used to exploit glucose transport mechanisms into the brain. Conclusions: Till now, no DA prodrug has reached the pharmaceutical market, nevertheless, the future of utilizing prodrugs for the treatment of PD seems to be bright. For instance, LD ester prodrugs have demonstrated an adequate intranasal delivery of LD, thus enabling the absorption of therapeutic agents to the brain. Most of the amide, cyclic, peptidyl or chemical delivery systems of DA prodrugs demonstrated enhanced pharmacokinetic properties.
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Affiliation(s)
- Fatma Haddad
- Department of Bioorganic & Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Quds University, Jerusalem P.O. Box 20002, Palestine.
| | - Maryam Sawalha
- Department of Bioorganic & Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Quds University, Jerusalem P.O. Box 20002, Palestine.
| | - Yahya Khawaja
- Department of Bioorganic & Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Quds University, Jerusalem P.O. Box 20002, Palestine.
| | - Anas Najjar
- Department of Bioorganic & Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Quds University, Jerusalem P.O. Box 20002, Palestine.
| | - Rafik Karaman
- Department of Bioorganic & Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Quds University, Jerusalem P.O. Box 20002, Palestine.
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