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Wang Z, Li J, Benin BM, Yu B, Bunge SD, Abeydeera N, Huang SD, Kim MH. Lipophilic Ga Complex with Broad-Spectrum Antimicrobial Activity and the Ability to Overcome Gallium Resistance in both Pseudomonas aeruginosa and Staphylococcus aureus. J Med Chem 2021; 64:9381-9388. [PMID: 34137262 DOI: 10.1021/acs.jmedchem.1c00656] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Antibiotic resistance (AR) necessitates the discovery of new antimicrobials with alternative mechanisms of action to those employed by conventional antibiotics. One such strategy utilizes Ga3+ to target iron metabolism, a critical process for survival. Still, Ga-based therapies are generally ineffective against Gram-positive bacteria and promote Ga resistance. In response to these drawbacks, we report a lipophilic Ga complex, [Ga2L3(bpy)2] (L = 2,2'-bis(3-hydroxy-1,4-naphthoquinone; bpy = 2,2'-bipyridine)), effective against drug-resistant Pseudomonas aeruginosa (DRPA; minimum inhibitory concentration, MIC = 10 μM = 14.8 μg/mL) and methicillin-resistant Staphylococcus aureus (MRSA, MIC = 100 μM = 148 μg/mL) without iron-limited conditions. Importantly, [Ga2L3(bpy)2] shows noticeably delayed and decreased resistance in both MRSA and DRPA, with only 8× MIC in DRPA and none in MRSA after 30 passages. This is likely due to the dual mode of action afforded by Ga (disruption of iron metabolism) and the ligand (reactive oxygen species production). Overall, [Ga2L3(bpy)2] demonstrates the utility of lipophilic metal complexes with multiple modes of action in combatting AR in Gram-positive and Gram-negative bacteria.
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Affiliation(s)
- Zhongxia Wang
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44240, United States
| | - Junfeng Li
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44240, United States
| | - Bogdan M Benin
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44240, United States.,Lawsonex, LLC., Rootstown, Ohio 44272, United States
| | - Bing Yu
- Department of Biological Sciences, Kent State University, Kent, Ohio 44240, United States
| | - Scott D Bunge
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44240, United States
| | - Nalin Abeydeera
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44240, United States
| | - Songping D Huang
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44240, United States
| | - Min-Ho Kim
- Department of Biological Sciences, Kent State University, Kent, Ohio 44240, United States
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Khaorapapong N, Pimchan P, Ogawa M. Formation of mixed-ligand zinc(ii) complex-montmorillonite hybrids by solid–solid reactions. Dalton Trans 2011; 40:5964-70. [PMID: 21537497 DOI: 10.1039/c0dt01736a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Nithima Khaorapapong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.
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Aiello I, Aiello D, Ghedini M. Aluminum(III), gallium(III), and indium(III) 4-hydroxyacridinato complexes. J COORD CHEM 2009. [DOI: 10.1080/00958970903071625] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Iolinda Aiello
- a Centre of Excellence CEMIF.CAL; LASCAMM, CR-INSTM Reference Centre of Italian Interuniversity Consortium on Materials Science and Technology, Department of Chemistry , University of Calabria , I-87036 Arcavacata di Rende (CS), Italy
| | - Daniela Aiello
- a Centre of Excellence CEMIF.CAL; LASCAMM, CR-INSTM Reference Centre of Italian Interuniversity Consortium on Materials Science and Technology, Department of Chemistry , University of Calabria , I-87036 Arcavacata di Rende (CS), Italy
| | - Mauro Ghedini
- a Centre of Excellence CEMIF.CAL; LASCAMM, CR-INSTM Reference Centre of Italian Interuniversity Consortium on Materials Science and Technology, Department of Chemistry , University of Calabria , I-87036 Arcavacata di Rende (CS), Italy
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Pugliese T, Godbert N, Aiello I, La Deda M, Ghedini M, Amati M, Belviso S, Lelj F. Organometallic red-emitting chromophores: a computational and experimental study on cyclometallated Nile Red complexes of palladium(ii) and platinum(ii) acetylacetonates and hexafluoroacetylacetonates. Dalton Trans 2008:6563-72. [DOI: 10.1039/b810561h] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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