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Klug DM, Tse EG, Silva DG, Cao Y, Charman SA, Chauhan J, Crighton E, Dichiara M, Drake C, Drewry D, da Silva Emery F, Ferrins L, Graves L, Hopkins E, Kresina TAC, Lorente-Macías Á, Perry B, Phipps R, Quiroga B, Quotadamo A, Sabatino GN, Sama A, Schätzlein A, Simpson QJ, Steele J, Shanu-Wilson J, Sjö P, Stapleton P, Swain CJ, Vaideanu A, Xie H, Zuercher W, Todd MH. Open Source Antibiotics: Simple Diarylimidazoles Are Potent against Methicillin-Resistant Staphylococcus aureus. ACS Infect Dis 2023; 9:2423-2435. [PMID: 37991879 PMCID: PMC10714399 DOI: 10.1021/acsinfecdis.3c00286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/24/2023]
Abstract
Antimicrobial resistance (AMR) is widely acknowledged as one of the most serious public health threats facing the world, yet the private sector finds it challenging to generate much-needed medicines. As an alternative discovery approach, a small array of diarylimidazoles was screened against the ESKAPE pathogens, and the results were made publicly available through the Open Source Antibiotics (OSA) consortium (https://github.com/opensourceantibiotics). Of the 18 compounds tested (at 32 μg/mL), 15 showed >90% growth inhibition activity against methicillin-resistant Staphylococcus aureus (MRSA) alone. In the subsequent hit-to-lead optimization of this chemotype, 147 new heterocyclic compounds containing the diarylimidazole and other core motifs were synthesized and tested against MRSA, and their structure-activity relationships were identified. While potent, these compounds have moderate to high intrinsic clearance and some associated toxicity. The best overall balance of parameters was found with OSA_975, a compound with good potency, good solubility, and reduced intrinsic clearance in rat hepatocytes. We have progressed toward the knowledge of the molecular target of these phenotypically active compounds, with proteomic techniques suggesting TGFBR1 is potentially involved in the mechanism of action. Further development of these compounds toward antimicrobial medicines is available to anyone under the licensing terms of the project.
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Affiliation(s)
- Dana M. Klug
- School
of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Edwin G. Tse
- School
of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Daniel G. Silva
- School
of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom
- School
of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo 14040-903. Brazil
| | - Yafeng Cao
- WuXi
AppTec (Wuhan) Co., Ltd., 666 Gaoxin Road, East Lake High-Tech Development Zone, Wuhan 430075, People’s Republic of China
| | - Susan A. Charman
- Centre
for Drug Candidate Optimization, Monash Institute of Pharmaceutical
Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Jyoti Chauhan
- Department
of Chemistry and Chemical Biology, Northeastern
University, Boston, Massachusetts 02115, United States
| | - Elly Crighton
- Centre
for Drug Candidate Optimization, Monash Institute of Pharmaceutical
Sciences, Monash University, Parkville, VIC 3052, Australia
| | - Maria Dichiara
- Department
of Chemistry and Chemical Biology, Northeastern
University, Boston, Massachusetts 02115, United States
| | - Chris Drake
- Hypha Discovery, 154b Brook Dr, Milton, Abingdon OX14 4SD, United Kingdom
| | - David Drewry
- UNC Lineberger
Comprehensive Cancer Center, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
- Structural
Genomics Consortium, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Flavio da Silva Emery
- School
of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo 14040-903. Brazil
| | - Lori Ferrins
- Department
of Chemistry and Chemical Biology, Northeastern
University, Boston, Massachusetts 02115, United States
| | - Lee Graves
- Department
of Pharmacology, University of North Carolina
at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Emily Hopkins
- Hypha Discovery, 154b Brook Dr, Milton, Abingdon OX14 4SD, United Kingdom
| | - Thomas A. C. Kresina
- Department
of Chemistry and Chemical Biology, Northeastern
University, Boston, Massachusetts 02115, United States
| | - Álvaro Lorente-Macías
- Department
of Pharmacology, University of North Carolina
at Chapel Hill, Chapel Hill, North Carolina 27599, United States
- Department
of Medicinal & Organic Chemistry and Excellence Research Unit
of ‘‘Chemistry Applied to Biomedicine and the Environment’’,
Faculty of Pharmacy, University of Granada, Campus de Cartuja s/n, 18071 Granada, Spain
- A. L-M.
Cancer Research UK Edinburgh Centre, Institute of Genetics & Cancer, University of Edinburgh, Edinburgh EH4 2XR, United Kingdom
| | - Benjamin Perry
- Drugs
for Neglected Diseases initiative (DNDi), 15 Chemin Camille-Vidart, 1202 Geneva, Switzerland
| | - Richard Phipps
- Hypha Discovery, 154b Brook Dr, Milton, Abingdon OX14 4SD, United Kingdom
| | - Bruno Quiroga
- Department
of Chemistry and Chemical Biology, Northeastern
University, Boston, Massachusetts 02115, United States
| | - Antonio Quotadamo
- Department
of Chemistry and Chemical Biology, Northeastern
University, Boston, Massachusetts 02115, United States
- Clinical
and Experimental Medicine PhD Program, University
of Modena and Reggio Emilia, 41121 Modena, Italy
| | - Giada N. Sabatino
- School
of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Anthony Sama
- Citizen
scientist, New York, New York 11570, United States
| | - Andreas Schätzlein
- School
of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Quillon J. Simpson
- Department
of Chemistry and Chemical Biology, Northeastern
University, Boston, Massachusetts 02115, United States
| | - Jonathan Steele
- Hypha Discovery, 154b Brook Dr, Milton, Abingdon OX14 4SD, United Kingdom
| | - Julia Shanu-Wilson
- Hypha Discovery, 154b Brook Dr, Milton, Abingdon OX14 4SD, United Kingdom
| | - Peter Sjö
- Drugs
for Neglected Diseases initiative (DNDi), 15 Chemin Camille-Vidart, 1202 Geneva, Switzerland
| | - Paul Stapleton
- School
of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Christopher J. Swain
- Cambridge
MedChem Consulting, 8
Mangers Lane, Duxford, Cambridge CB22 4RN, United Kingdom
| | - Alexandra Vaideanu
- School
of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Huanxu Xie
- WuXi
AppTec (Wuhan) Co., Ltd., 666 Gaoxin Road, East Lake High-Tech Development Zone, Wuhan 430075, People’s Republic of China
| | - William Zuercher
- UNC Lineberger
Comprehensive Cancer Center, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Matthew H. Todd
- School
of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom
- Structural
Genomics Consortium, University College
London, 29-39 Brunswick
Square, London WC1N 1AX, United Kingdom
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Han S, Cai Z, Peng L, Li Z, Zhou HB, Li XQ, Fang SZ, Huang ZH, Cui DX. Polyamidoamine dendrimer liposome-mediated survivin antisense oligonucleotide inhibits hepatic cancer cell proliferation by inducing apoptosis. Tumour Biol 2014; 35:5013-9. [PMID: 24488668 DOI: 10.1007/s13277-014-1661-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 01/14/2014] [Indexed: 02/03/2023] Open
Abstract
Polyamidoamine dendrimer (PAMAM) is a new nanometer material, which can transfer the target genes to cells with high efficiency and lower toxicity. This study aims to evaluate antitumor effects of survivin antisense oligonucleotide (survivin-asODN) (carried by polyamidoamine dendrimer liposome) on hepatic cancer in nude mice. Hepatic cancer model was established by injecting SMMC-7721 cells subcutaneously into flanks of nude mice. Polyamidoamine dendrimer and liposome were mixed with survivin-asODN, respectively. The shape and size of complex were observed by transmission electron microscope, and zeta potential was measured by an analytical tool. Encapsulation efficiency and DNA loading level were determined by an ultraviolet spectrophotometer in centrifuging method. Expression of survivin in transplant tumor was measured by Western blotting. No significant difference appeared for diameter and envelopment ratio between PAMAM liposome-survivin-asODN and PAMAM-survivin-asODN (P > 0.05). Both zeta potential and transfection efficiency in PAMAM liposome-survivin-asODN were higher than that in PAMAM-survivin-asODN complex (P < 0.05). Expression of survivin protein and weight of tumors in transplanted tumors in PAMAM liposome-survivin-asODN group was less than that in PAMAM-survivin-asODN group (P < 0.05). Cell apoptosis rate in PAMAM liposome-survivin-asODN group was higher than that of PAMAM-survivin-asODN group (P < 0.05). In conclusion, polyamidoamine dendrimer liposome can deliver survivin-asODN into hepatic transplanted tumor cells effectively. Ployamidoamine dendrimer liposome-mediated survivin-asODN can inhibit hepatic cell proliferation by inducing apoptosis.
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Affiliation(s)
- Shuai Han
- Department of General Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
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