51
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Jovanovic D, Tremmel P, Pallan PS, Egli M, Richert C. The Enzyme-Free Release of Nucleotides from Phosphoramidates Depends Strongly on the Amino Acid. Angew Chem Int Ed Engl 2020; 59:20154-20160. [PMID: 32757352 PMCID: PMC7436718 DOI: 10.1002/anie.202008665] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/04/2020] [Indexed: 12/23/2022]
Abstract
Phosphoramidates composed of an amino acid and a nucleotide analogue are critical metabolites of prodrugs, such as remdesivir. Hydrolysis of the phosphoramidate liberates the nucleotide, which can then be phosphorylated to become the pharmacologically active triphosphate. Enzymatic hydrolysis has been demonstrated, but a spontaneous chemical process may also occur. We measured the rate of enzyme-free hydrolysis for 17 phosphoramidates of ribonucleotides with amino acids or related compounds at pH 7.5. Phosphoramidates of proline hydrolyzed fast, with a half-life time as short as 2.4 h for Pro-AMP in ethylimidazole-containing buffer at 37 °C; 45-fold faster than Ala-AMP and 120-fold faster than Phe-AMP. Crystal structures of Gly-AMP, Pro-AMP, βPro-AMP and Phe-AMP bound to RNase A as crystallization chaperone showed how well the carboxylate is poised to attack the phosphoramidate, helping to explain this reactivity. Our results are significant for the design of new antiviral prodrugs.
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Affiliation(s)
- Dejana Jovanovic
- Institut für Organische Chemie, Universität Stuttgart, 70569, Stuttgart, Germany
| | - Peter Tremmel
- Institut für Organische Chemie, Universität Stuttgart, 70569, Stuttgart, Germany
| | - Pradeep S Pallan
- Department of Biochemistry, Vanderbilt University, School of Medicine, Nashville, TN, 37232, USA
| | - Martin Egli
- Department of Biochemistry, Vanderbilt University, School of Medicine, Nashville, TN, 37232, USA
| | - Clemens Richert
- Institut für Organische Chemie, Universität Stuttgart, 70569, Stuttgart, Germany
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52
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Bigley AN, Narindoshvili T, Raushel FM. A Chemoenzymatic Synthesis of the ( RP)-Isomer of the Antiviral Prodrug Remdesivir. Biochemistry 2020; 59:3038-3043. [PMID: 32786401 PMCID: PMC7418565 DOI: 10.1021/acs.biochem.0c00591] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/04/2020] [Indexed: 12/16/2022]
Abstract
The COVID-19 pandemic threatens to overwhelm healthcare systems around the world. The only current FDA-approved treatment, which directly targets the virus, is the ProTide prodrug remdesivir. In its activated form, remdesivir prevents viral replication by inhibiting the essential RNA-dependent RNA polymerase. Like other ProTide prodrugs, remdesivir contains a chiral phosphorus center. The initial selection of the (SP)-diastereomer for remdesivir was reportedly due to the difficulty in producing the pure (RP)-diastereomer of the required precursor. However, the two currently known enzymes responsible for the initial activation step of remdesivir are each stereoselective and show differential tissue distribution. Given the ability of the COVID-19 virus to infect a wide array of tissue types, inclusion of the (RP)-diastereomer may be of clinical significance. To help overcome the challenge of obtaining the pure (RP)-diastereomer of remdesivir, we have developed a novel chemoenzymatic strategy that utilizes a stereoselective variant of the phosphotriesterase from Pseudomonas diminuta to enable the facile isolation of the pure (RP)-diastereomer of the chiral precursor for the chemical synthesis of the (RP)-diastereomer of remdesivir.
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Affiliation(s)
- Andrew N. Bigley
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Tamari Narindoshvili
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
| | - Frank M. Raushel
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
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53
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Itumoh EJ, Data S, Leitao EM. Opening up the Toolbox: Synthesis and Mechanisms of Phosphoramidates. Molecules 2020; 25:E3684. [PMID: 32823507 PMCID: PMC7463754 DOI: 10.3390/molecules25163684] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/05/2020] [Accepted: 08/11/2020] [Indexed: 11/25/2022] Open
Abstract
This review covers the main synthetic routes to and the corresponding mechanisms of phosphoramidate formation. The synthetic routes can be separated into six categories: salt elimination, oxidative cross-coupling, azide, reduction, hydrophosphinylation, and phosphoramidate-aldehyde-dienophile (PAD). Examples of some important compounds synthesized through these routes are provided. As an important class of organophosphorus compounds, the applications of phosphoramidate compounds, are also briefly introduced.
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Affiliation(s)
- Emeka J. Itumoh
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand; (E.J.I.); (S.D.)
- Department of Industrial Chemistry, Ebonyi State University, Abakaliki 480001, Ebonyi State, Nigeria
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
| | - Shailja Data
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand; (E.J.I.); (S.D.)
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
| | - Erin M. Leitao
- School of Chemical Sciences, The University of Auckland, 23 Symonds Street, Auckland 1010, New Zealand; (E.J.I.); (S.D.)
- The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6140, New Zealand
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54
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Kumari S, Carmona AV, Tiwari AK, Trippier PC. Amide Bond Bioisosteres: Strategies, Synthesis, and Successes. J Med Chem 2020; 63:12290-12358. [PMID: 32686940 DOI: 10.1021/acs.jmedchem.0c00530] [Citation(s) in RCA: 215] [Impact Index Per Article: 53.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The amide functional group plays a key role in the composition of biomolecules, including many clinically approved drugs. Bioisosterism is widely employed in the rational modification of lead compounds, being used to increase potency, enhance selectivity, improve pharmacokinetic properties, eliminate toxicity, and acquire novel chemical space to secure intellectual property. The introduction of a bioisostere leads to structural changes in molecular size, shape, electronic distribution, polarity, pKa, dipole or polarizability, which can be either favorable or detrimental to biological activity. This approach has opened up new avenues in drug design and development resulting in more efficient drug candidates introduced onto the market as well as in the clinical pipeline. Herein, we review the strategic decisions in selecting an amide bioisostere (the why), synthetic routes to each (the how), and success stories of each bioisostere (the implementation) to provide a comprehensive overview of this important toolbox for medicinal chemists.
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Affiliation(s)
- Shikha Kumari
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Angelica V Carmona
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Amit K Tiwari
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, The University of Toledo, Toledo, Ohio 43614, United States
| | - Paul C Trippier
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States.,Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States.,UNMC Center for Drug Discovery, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
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55
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Hardy M, Wright BA, Bachman JL, Boit TB, Haley HMS, Knapp RR, Lusi RF, Okada T, Tona V, Garg NK, Sarpong R. Treating a Global Health Crisis with a Dose of Synthetic Chemistry. ACS CENTRAL SCIENCE 2020; 6:1017-1030. [PMID: 32719821 PMCID: PMC7336722 DOI: 10.1021/acscentsci.0c00637] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
The SARS-CoV-2 pandemic has prompted scientists from many disciplines to work collaboratively toward an effective response. As academic synthetic chemists, we examine how best to contribute to this ongoing effort.
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Affiliation(s)
- Melissa
A. Hardy
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Brandon A. Wright
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - J. Logan Bachman
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, California 90095, United States
| | - Timothy B. Boit
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, California 90095, United States
| | - Hannah M. S. Haley
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Rachel R. Knapp
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, California 90095, United States
| | - Robert F. Lusi
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Taku Okada
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Veronica Tona
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, California 90095, United States
| | - Neil K. Garg
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, California 90095, United States
| | - Richmond Sarpong
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
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56
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Matos de Souza MR, Cunha MS, Okon A, Monteiro FLL, Campanati L, Wagner CR, da Costa LJ. In Vitro and In Vivo Characterization of the Anti-Zika Virus Activity of ProTides of 2'-C-β-Methylguanosine. ACS Infect Dis 2020; 6:1650-1658. [PMID: 32525653 DOI: 10.1021/acsinfecdis.0c00091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The ProTide approach has emerged as a powerful tool to improve the intracellular delivery of nucleotide analogs with antiviral and anticancer activity. Here, we characterized the anti-ZIKV (ZIKV, Zika virus) activity of two ProTides of 2'-C-β-methylguanosine. ProTide UMN-1001 is a 2'-C-β-methylguanosine tryptamine phosphoramidate monoester, and ProTide UMN-1002 is a 2-(methylthio)-ethyl-2'-C-β-methylguanosine tryptamine phosphoramidate diester. UMN-1002 undergoes stepwise intracellular activation to the corresponding nucleotide monophosphate followed by P-N bond cleavage by intracellular histidine triad nucleotide binding protein 1 (Hint1). UMN-1001 is activated by Hint1 but is less cell-permeable than UMN-1002. UMN-1001 and UMN-1002 were found to be more potent than 2'-C-β-methylguanosine against ZIKV in human-derived microvascular endothelial and neuroblastoma cells and in reducing ZIKV RNA replication. Studies with a newborn mouse model of ZIKV infection demonstrated that, while treatment with 2'-C-β-methylguanosine and UMN-1001 was lethal, treatment with UMN-1002 was nontoxic and significantly reduced ZIKV infection. Our data suggests that anchimeric activated ProTides of 2'-C-β-methyl nucleosides should be further investigated for their potential as anti-ZIKV therapeutics.
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Affiliation(s)
| | | | - Aniekan Okon
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | | | | | - Carston R. Wagner
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
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57
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Pierra Rouviere C, Dousson CB, Tavis JE. HBV replication inhibitors. Antiviral Res 2020; 179:104815. [PMID: 32380149 PMCID: PMC7293572 DOI: 10.1016/j.antiviral.2020.104815] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/22/2020] [Accepted: 04/28/2020] [Indexed: 12/21/2022]
Abstract
Chronic Hepatitis B Virus infections afflict >250 million people and kill nearly 1 million annually. Current non-curative therapies are dominated by nucleos(t)ide analogs (NAs) that profoundly but incompletely suppress DNA synthesis by the viral reverse transcriptase. Residual HBV replication during NA therapy contributes to maintenance of the critical nuclear reservoir of the HBV genome, the covalently-closed circular DNA, and to ongoing infection of naive cells. Identification of next-generation NAs with improved efficacy and safety profiles, often through novel prodrug approaches, is the primary thrust of ongoing efforts to improve HBV replication inhibitors. Inhibitors of the HBV ribonuclease H, the other viral enzymatic activity essential for viral genomic replication, are in preclinical development. The complexity of HBV's reverse transcription pathway offers many other potential targets. HBV's protein-priming of reverse transcription has been briefly explored as a potential target, as have the host chaperones necessary for function of the HBV reverse transcriptase. Improved inhibitors of HBV reverse transcription would reduce HBV's replication-dependent persistence mechanisms and are therefore expected to become a backbone of future curative combination anti-HBV therapies.
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Affiliation(s)
| | - Cyril B Dousson
- Ai-biopharma, Medicinal Chemistry Department, Montpellier, France.
| | - John E Tavis
- Department of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, Saint Louis, MO, USA.
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58
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Tera M, Luedtke NW. Cross-linking cellular nucleic acids via a target-directing double click reagent. Methods Enzymol 2020; 641:433-457. [PMID: 32713534 DOI: 10.1016/bs.mie.2020.04.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Bioorthogonal ligation reactions are powerful tools for characterizing DNA metabolism, DNA-protein binding interactions, and they even provide new leads for therapeutic strategies. Nucleoside analogs can deliver bioorthogonal functional groups into chromatin via cellular metabolic pathways, however, insufficient phosphorylation by endogenous kinases often limits the efficiency of their incorporation. Even when successfully metabolized into biopolymers, steric hindrance of the modified nucleotide by chromatin can inhibit subsequent click reactions. In this chapter, we describe methods that overcome these limitations. Nucleotide monophosphate triesterers can bypass the need for cellular nucleoside kinase activity and thereby enable efficient incorporation of azide groups into cellular DNA. Steric access to and modification of the azide groups within natively folded chromatin can then be accomplished using a bioorthogonal "intercalating reagent" comprised of a cationic Sondheimer diyne that reversibly intercalates into duplexes where it undergoes tandem, strain-promoted cross-linking of two azides to give DNA-DNA interstrand crosslinks or DNA-fluorophore conjugation, depending on the relative number and spatial orientation of the azide groups in the DNA.
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Affiliation(s)
- Masayuki Tera
- Institute of Engineering, Tokyo University of Agriculture and Technology, Tokyo, Japan.
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59
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Opatz T, Senn‐Bilfinger J, Richert C. Thoughts on What Chemists Can Contribute to Fighting SARS-CoV-2 - A Short Note on Hand Sanitizers, Drug Candidates and Outreach. Angew Chem Int Ed Engl 2020; 59:9236-9240. [PMID: 32329159 PMCID: PMC7264767 DOI: 10.1002/anie.202004721] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Indexed: 11/23/2022]
Abstract
The SARS-CoV-2 outbreak causing the respiratory disease COVID-19 has left many chemists in academia without an obvious option to contribute to fighting the pandemic. Some of our recent experiences indicate that there are ways to overcome this dilemma. A three-pronged approach is proposed.
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Affiliation(s)
- Till Opatz
- Department of ChemistryJohannes Gutenberg-University Mainz55128MainzGermany
| | | | - Clemens Richert
- Institut für Organische ChemieUniversität Stuttgart70569StuttgartGermany
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60
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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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61
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Eastman R, Roth JS, Brimacombe KR, Simeonov A, Shen M, Patnaik S, Hall MD. Remdesivir: A Review of Its Discovery and Development Leading to Emergency Use Authorization for Treatment of COVID-19. ACS CENTRAL SCIENCE 2020; 6:672-683. [PMID: 32483554 PMCID: PMC7202249 DOI: 10.1021/acscentsci.0c00489] [Citation(s) in RCA: 541] [Impact Index Per Article: 135.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Indexed: 05/09/2023]
Abstract
The global pandemic of SARS-CoV-2, the causative viral pathogen of COVID-19, has driven the biomedical community to action-to uncover and develop antiviral interventions. One potential therapeutic approach currently being evaluated in numerous clinical trials is the agent remdesivir, which has endured a long and winding developmental path. Remdesivir is a nucleotide analogue prodrug that perturbs viral replication, originally evaluated in clinical trials to thwart the Ebola outbreak in 2014. Subsequent evaluation by numerous virology laboratories demonstrated the ability of remdesivir to inhibit coronavirus replication, including SARS-CoV-2. Here, we provide an overview of remdesivir's discovery, mechanism of action, and the current studies exploring its clinical effectiveness.
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Affiliation(s)
- Richard
T. Eastman
- National
Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland 20850, United States
| | - Jacob S. Roth
- National
Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland 20850, United States
- Albert
Einstein College of Medicine, New
York, New York 10461, United States
| | - Kyle R. Brimacombe
- National
Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland 20850, United States
| | - Anton Simeonov
- National
Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland 20850, United States
| | - Min Shen
- National
Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland 20850, United States
| | - Samarjit Patnaik
- National
Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland 20850, United States
| | - Matthew D. Hall
- National
Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland 20850, United States
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62
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Opatz T, Senn‐Bilfinger J, Richert C. Thoughts on What Chemists Can Contribute to Fighting SARS‐CoV‐2 – A Short Note on Hand Sanitizers, Drug Candidates and Outreach. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004721] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Till Opatz
- Department of ChemistryJohannes Gutenberg-University Mainz 55128 Mainz Germany
| | | | - Clemens Richert
- Institut für Organische ChemieUniversität Stuttgart 70569 Stuttgart Germany
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63
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Bugert JJ, Hucke F, Zanetta P, Bassetto M, Brancale A. Antivirals in medical biodefense. Virus Genes 2020; 56:150-167. [PMID: 32076918 PMCID: PMC7089181 DOI: 10.1007/s11262-020-01737-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Accepted: 01/20/2020] [Indexed: 02/07/2023]
Abstract
The viruses historically implicated or currently considered as candidates for misuse in bioterrorist events are poxviruses, filoviruses, bunyaviruses, orthomyxoviruses, paramyxoviruses and a number of arboviruses causing encephalitis, including alpha- and flaviviruses. All these viruses are of concern for public health services when they occur in natural outbreaks or emerge in unvaccinated populations. Recent events and intelligence reports point to a growing risk of dangerous biological agents being used for nefarious purposes. Public health responses effective in natural outbreaks of infectious disease may not be sufficient to deal with the severe consequences of a deliberate release of such agents. One important aspect of countermeasures against viral biothreat agents are the antiviral treatment options available for use in post-exposure prophylaxis. These issues were adressed by the organizers of the 16th Medical Biodefense Conference, held in Munich in 2018, in a special session on the development of drugs to treat infections with viruses currently perceived as a threat to societies or associated with a potential for misuse as biothreat agents. This review will outline the state-of-the-art methods in antivirals research discussed and provide an overview of antiviral compounds in the pipeline that are already approved for use or still under development.
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Affiliation(s)
- J J Bugert
- Bundeswehr Institute for Microbiology, Neuherbergstraße 11, 80937, Munich, Germany.
| | - F Hucke
- Bundeswehr Institute for Microbiology, Neuherbergstraße 11, 80937, Munich, Germany
| | - P Zanetta
- Bundeswehr Institute for Microbiology, Neuherbergstraße 11, 80937, Munich, Germany
| | - M Bassetto
- Department of Chemistry, Swansea University, Swansea, SA2 8PP, UK
| | - A Brancale
- Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, CF10 3NB, UK
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64
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Procházková E, Filo J, Cigáň M, Baszczyňski O. Sterically-Controlled Self-Immolation in Phosphoramidate Linkers Triggered by Light. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901882] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Eliška Procházková
- Institute of Organic Chemistry and Biochemistry; The Czech Academy of Sciences, Flemingovo nám. 542/2; 116 10 Prague Czech Republic
| | - Juraj Filo
- Institute of Chemistry, Faculty of Natural Sciences; Comenius University, Ilkovičova 6; Bratislava 842 15 Slovakia
| | - Marek Cigáň
- Institute of Chemistry, Faculty of Natural Sciences; Comenius University, Ilkovičova 6; Bratislava 842 15 Slovakia
| | - Ondřej Baszczyňski
- Department of Organic Chemistry, Faculty of Science; Charles University, Hlavova 2030/8; 128 43 Prague Czech Republic
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65
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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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66
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Morozzi C, Sedláková J, Serpi M, Avigliano M, Carbajo R, Sandoval L, Valles-Ayoub Y, Crutcher P, Thomas S, Pertusati F. Targeting GNE Myopathy: A Dual Prodrug Approach for the Delivery of N-Acetylmannosamine 6-Phosphate. J Med Chem 2019; 62:8178-8193. [DOI: 10.1021/acs.jmedchem.9b00833] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Chiara Morozzi
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, King Edward VII Avenue, Cardiff CF10 3NB, U.K
| | - Jana Sedláková
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, King Edward VII Avenue, Cardiff CF10 3NB, U.K
| | - Michaela Serpi
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, King Edward VII Avenue, Cardiff CF10 3NB, U.K
| | - Marialuce Avigliano
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, King Edward VII Avenue, Cardiff CF10 3NB, U.K
| | - Rosangela Carbajo
- FirmaLab Bio-Diagnostics, 21053 Devonshire Street, Suite 106, Chatsworth, California 91311, United States
| | - Lucia Sandoval
- FirmaLab Bio-Diagnostics, 21053 Devonshire Street, Suite 106, Chatsworth, California 91311, United States
| | - Yadira Valles-Ayoub
- FirmaLab Bio-Diagnostics, 21053 Devonshire Street, Suite 106, Chatsworth, California 91311, United States
| | - Patrick Crutcher
- Cerecor Inc., 540 Gaither Road, Suite 400, Rockville, Maryland 20850, United States
| | - Stephen Thomas
- Cerecor Inc., 540 Gaither Road, Suite 400, Rockville, Maryland 20850, United States
| | - Fabrizio Pertusati
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, King Edward VII Avenue, Cardiff CF10 3NB, U.K
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Xiang DF, Bigley AN, Desormeaux E, Narindoshvili T, Raushel FM. Enzyme-Catalyzed Kinetic Resolution of Chiral Precursors to Antiviral Prodrugs. Biochemistry 2019; 58:3204-3211. [PMID: 31268686 PMCID: PMC6822272 DOI: 10.1021/acs.biochem.9b00530] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Nucleoside analogues are among the most common medications given for the treatment of viral infections and cancers. The therapeutic effectiveness of nucleoside analogues can be dramatically improved by phosphorylation. The ProTide approach was developed using a phosphorylated nucleoside that is masked by esterification with an amino acid and phenol forming a chiral phosphorus center. The biological activity of the ProTides depends, in part, on the stereochemistry at phosphorus, and thus, it is imperative that efficient methods be developed for the chemical synthesis and isolation of diastereomerically pure ProTides. Chiral ProTides are often synthesized by direct displacement of a labile phenol (p-nitrophenol or pentafluorophenol) from a chiral phosphoramidate precursor with the appropriate nucleoside analogue. The ability to produce these chiral products is dictated by the synthesis of the chiral phosphoramidate precursors. The enzyme phosphotriesterase (PTE) from Pseudomonas diminuta is well-known for its high stereoselectivity and broad substrate profile. Screening PTE variants from enzyme evolution libraries enabled the identification of variants of PTE that can stereoselectively hydrolyze the chiral phosphoramidate precursors. The variant G60A-PTE exhibits a 165-fold preference for hydrolysis of the RP isomer, while the variant In1W-PTE has a 1400-fold preference for hydrolysis of the SP isomer. Using these mutants of PTE, the SP and RP isomers were isolated on a preparative scale with no detectable contamination of the opposite isomer. Combining the simplicity of the enzymatic resolution of the precursor with the latest synthetic strategy will facilitate the production of diastereometrically pure nucleotide phosphoramidate prodrugs.
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Affiliation(s)
- Dao Feng Xiang
- Department of Chemistry , Texas A&M University , College Station , Texas 77843 , United States
| | - Andrew N Bigley
- Department of Chemistry , Texas A&M University , College Station , Texas 77843 , United States
| | - Emily Desormeaux
- Department of Chemistry , Texas A&M University , College Station , Texas 77843 , United States
| | - Tamari Narindoshvili
- Department of Chemistry , Texas A&M University , College Station , Texas 77843 , United States
| | - Frank M Raushel
- Department of Chemistry , Texas A&M University , College Station , Texas 77843 , United States
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Romanowska J, Kolodziej K, Sobkowski M, Rachwalak M, Jakubowski T, Golebiewska J, Kraszewski A, Boryski J, Dabrowska A, Stawinski J. Aryl H-phosphonates. 19. New anti-HIV pronucleotide phosphoramidate diesters containing amino- and hydroxypyridine auxiliaries. Eur J Med Chem 2019; 164:47-58. [PMID: 30590257 DOI: 10.1016/j.ejmech.2018.12.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 11/19/2018] [Accepted: 12/15/2018] [Indexed: 10/27/2022]
Abstract
We have designed a new type of AZT and ddU phosphoramidate diesters containing various combinations of 2-, 3-, 4-aminopyridine and 2-, 3-, 4-hydroxypyridine moieties attached to the phosphorus center, as potential anti-HIV pronucleotides. Depending on the pKa values of the aminopyridines and the hydroxypyridines used, alternative synthetic strategies based on H-phosphonate chemistry were developed for their preparation. Synthetic aspects of these transformations and the biological activity of the synthesized compounds are discussed.
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Affiliation(s)
- Joanna Romanowska
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704, Poznan, Poland.
| | - Krystian Kolodziej
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704, Poznan, Poland
| | - Michal Sobkowski
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704, Poznan, Poland
| | - Marta Rachwalak
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704, Poznan, Poland
| | - Tomasz Jakubowski
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704, Poznan, Poland
| | - Justyna Golebiewska
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704, Poznan, Poland
| | - Adam Kraszewski
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704, Poznan, Poland
| | - Jerzy Boryski
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704, Poznan, Poland
| | - Aleksandra Dabrowska
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704, Poznan, Poland
| | - Jacek Stawinski
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704, Poznan, Poland.
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69
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Gupta S, Baranwal S, Chaudhary P, Kandasamy J. Copper-promoted dehydrogenative cross-coupling reaction of dialkyl phosphites with sulfoximines. Org Chem Front 2019. [DOI: 10.1039/c9qo00469f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of sulfoximine derived phosphoramidates was achieved in good to excellent yields from NH-sulfoximines and dialkyl phosphites.
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Affiliation(s)
- Surabhi Gupta
- Department of Chemistry
- Indian Institute of Technology (BHU)
- Varanasi
- India
| | - Siddharth Baranwal
- Department of Chemistry
- Indian Institute of Technology (BHU)
- Varanasi
- India
| | - Priyanka Chaudhary
- Department of Chemistry
- Indian Institute of Technology (BHU)
- Varanasi
- India
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70
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Slusarczyk M, Ferrari V, Serpi M, Gönczy B, Balzarini J, McGuigan C. Symmetrical Diamidates as a Class of Phosphate Prodrugs to Deliver the 5′‐Monophosphate Forms of Anticancer Nucleoside Analogues. ChemMedChem 2018; 13:2305-2316. [DOI: 10.1002/cmdc.201800504] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Indexed: 11/05/2022]
Affiliation(s)
- Magdalena Slusarczyk
- School of Pharmacy and Pharmaceutical SciencesCardiff University King Edward VII Avenue Cardiff CF10 3NB UK
| | - Valentina Ferrari
- School of Pharmacy and Pharmaceutical SciencesCardiff University King Edward VII Avenue Cardiff CF10 3NB UK
| | - Michaela Serpi
- School of Pharmacy and Pharmaceutical SciencesCardiff University King Edward VII Avenue Cardiff CF10 3NB UK
| | - Blanka Gönczy
- School of Pharmacy and Pharmaceutical SciencesCardiff University King Edward VII Avenue Cardiff CF10 3NB UK
| | - Jan Balzarini
- Laboratory of Virology and ChemotherapyRega Institute for Medical Research Herestraat 49 3000 Leuven Belgium
| | - Christopher McGuigan
- School of Pharmacy and Pharmaceutical SciencesCardiff University King Edward VII Avenue Cardiff CF10 3NB UK
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71
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Bray M, Andrei G, Ballana E, Carter K, Durantel D, Gentry B, Janeba Z, Moffat J, Oomen CJ, Tarbet B, Riveira-Muñoz E, Esté JA. Meeting report: 31 st International Conference on Antiviral Research. Antiviral Res 2018; 158:88-102. [PMID: 30086336 PMCID: PMC7113893 DOI: 10.1016/j.antiviral.2018.08.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 08/01/2018] [Indexed: 12/29/2022]
Abstract
The 31st International Conference on Antiviral Research (ICAR) was held in Porto, Portugal from June 11–15, 2018. In this report, volunteer rapporteurs provide their summaries of scientific presentations, hoping to effectively convey the speakers' goals and the results and conclusions of their talks. This report provides an overview of the invited keynote and award lectures and highlights of short oral presentations, from the perspective of experts in antiviral research. Of note, a session on human cytomegalovirus included an update on the introduction to the clinic of letermovir for the prevention of CMV infection and disease. The 31st ICAR successfully promoted new discoveries in antiviral research and drug development. The 32nd ICAR will be held in Baltimore, Maryland, USA, May 6–10, 2019. The 31st ICAR was held in Porto, Portugal, June 11–15, 2018. This article provides an overview of the invited keynote and award lectures and highlights of short oral presentations. ICAR provided an interdisciplinary forum to review recent developments in all areas of antiviral research. The 32nd ICAR will be held in Baltimore, Maryland, USA, May 6–10, 2019.
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Affiliation(s)
| | - Graciela Andrei
- KU Leuven, Rega Institute for Medical Research, Laboratory of Virology and Chemotherapy, B-3000 Leuven, Belgium
| | - Ester Ballana
- AIDS Research Institute - Irsicaixa, Hospital Germans Trias i Pujol, Universitat Autónoma de Barcelona, Badalona, Spain
| | | | - David Durantel
- Cancer Research Centre of Lyon (CRCL), INSERM, U1052, UMR_5286 CNRS/University of Lyon, Lyon, France
| | - Brian Gentry
- Drake University College of Pharmacy and Health Sciences, Des Moines, IA, USA
| | - Zlatko Janeba
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nam. 2, CZ-16610 Prague 6, Czech Republic
| | | | - Clasien J Oomen
- Virology Division, Dept. of Infectious Diseases & Immunology, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Bart Tarbet
- Institute for Antiviral Research, Utah State University, Logan, UT, USA
| | - Eva Riveira-Muñoz
- AIDS Research Institute - Irsicaixa, Hospital Germans Trias i Pujol, Universitat Autónoma de Barcelona, Badalona, Spain.
| | - José A Esté
- AIDS Research Institute - Irsicaixa, Hospital Germans Trias i Pujol, Universitat Autónoma de Barcelona, Badalona, Spain.
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72
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Pileggi E, Serpi M, Andrei G, Schols D, Snoeck R, Pertusati F. Expedient synthesis and biological evaluation of alkenyl acyclic nucleoside phosphonate prodrugs. Bioorg Med Chem 2018; 26:3596-3609. [PMID: 29880251 PMCID: PMC7126595 DOI: 10.1016/j.bmc.2018.05.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 05/18/2018] [Accepted: 05/22/2018] [Indexed: 01/27/2023]
Abstract
The importance of phosphonoamidate prodrugs (ProTides) of acyclic nucleoside phosphonate (ANPs) is highlighted by the approval of Tenofovir Alafenamide Fumarate for the treatment of HIV and HBV infections. In the present paper we are reporting an expedient, one-pot, two-steps synthesis of allyl phosphonoamidates and diamidates that offers a time saving strategy when compared to literature methods. The use of these substrates in the cross metathesis reactions with alkenyl functionalised thymine and uracil nucleobases is reported. ANPs prodrugs synthesized via this methodology were evaluated for their antiviral activities against DNA and RNA viruses. It is anticipated that the use of 5,6,7,8-tetrahydro-1-napthyl as aryloxy moiety is capable to confer antiviral activity among a series of otherwise inactive uracil ProTides.
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Affiliation(s)
- Elisa Pileggi
- School of Pharmacy and Pharmaceutical Sciences, Redwood building, King Edwards VII Avenue, CF10 3NB Cardiff, Wales, United Kingdom
| | - Michaela Serpi
- School of Pharmacy and Pharmaceutical Sciences, Redwood building, King Edwards VII Avenue, CF10 3NB Cardiff, Wales, United Kingdom
| | - Graciela Andrei
- Rega Institute for Medical Research, K.U. Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
| | - Dominique Schols
- Rega Institute for Medical Research, K.U. Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
| | - Robert Snoeck
- Rega Institute for Medical Research, K.U. Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
| | - Fabrizio Pertusati
- School of Pharmacy and Pharmaceutical Sciences, Redwood building, King Edwards VII Avenue, CF10 3NB Cardiff, Wales, United Kingdom.
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