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Metallocenyl 7‐ACA Conjugates: Antibacterial Activity Studies and Atomic‐Resolution X‐ray Crystal Structure with CTX‐M β‐Lactamase

Journal Article · · ChemBioChem: a European journal of chemical biology
 [1];  [2];  [3];  [4];  [5];  [1];  [3];  [1];  [2]
  1. Department of Molecular Medicine University of South Florida, >,Morsani College of Medicine 12901 Bruce B. Downs Boulevard Tampa FL 33612 US
  2. Department of Organic Chemistry, Faculty of Chemistry University of Łódź Tamka 12 91-403 Łódź Poland
  3. Department of Microbial Genetics, Faculty of Biology and Environmental Protection University of Łódź Banacha 12/16 90-237 Łódź Poland
  4. Department of Chemical Engineering Aragon Health Research Institute (IIS Aragón) University of Zaragoza Campus Río Ebro-Edificio I+D, c/ Poeta Mariano Esquillor s/n 5018 Zaragoza Spain
  5. Department of Chemical Engineering Aragon Health Research Institute (IIS Aragón) University of Zaragoza Campus Río Ebro-Edificio I+D, c/ Poeta Mariano Esquillor s/n 5018 Zaragoza Spain, Networking Research Center on Bioengineering Biomaterials and Nanomedicine CIBER-BBN 28029 Madrid Spain
Abstract

The conjugation of organometallic groups to current β‐lactam antibiotics is a field of increasing study due to the ability of certain organometallic groups to enhance the antibiotic potency of these drugs. Herein, we report the antibacterial properties of two metallocenyl (ferrocenyl and ruthenocenyl) 7‐aminocephalosporanic acid (7‐ACA) antibiotic conjugates. Continuing a trend we found in our previous studies, the ruthenocenyl conjugate showed greater antibacterial activity than its ferrocenyl counterpart. Compared with the previously published 7‐aminodesacetoxycephalosporanic acid (7‐ADCA) conjugates, the 3‐acetyloxymethyl group significantly improved the compounds’ activity. Furthermore, the Rc‐7‐ACA compound was more active against clinical Staphylococcus aureus isolates than the ampicillin reference. Noticeably, neither of the two new compounds showed an undesirable toxic effect in HeLa and L929 cells at the concentrations at which they displayed strong antibacterial effects. The antibacterial activity of the two metallocenyl 7‐ACA derivatives was further confirmed by scanning electron microscopy (SEM). SEM micrographs showed that bacteria treated with metallocenyl 7‐ACA derivatives feature cell wall damage and morphology changes. Using a CTX‐M‐14 β‐lactamase competition assay based on nitrocefin hydrolysis, we showed that the Rc‐7‐ACA bound more favorably to CTX‐M‐14 than its ferrocenyl counterpart, again confirming the superiority of the ruthenocenyl moiety over the ferrocenyl one in interacting with proteins. We also report a 1.47 Å resolution crystal structure of Rc‐7‐ACA in complex with the CTX‐M‐14 E166A mutant, an enzyme sharing a similar active site configuration with penicillin‐binding proteins, the molecular target of β‐lactam antibiotics. These results strengthen the case for the antibacterial utility of the Rc and Fc groups.

Sponsoring Organization:
USDOE
Grant/Contract Number:
W-31109-ENG-38
OSTI ID:
1615058
Alternate ID(s):
OSTI ID: 1833656
Journal Information:
ChemBioChem: a European journal of chemical biology, Journal Name: ChemBioChem: a European journal of chemical biology Journal Issue: 15 Vol. 21; ISSN 1439-4227
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
France
Language:
English

References (61)

Antibakterielle Naturstoffe in der medizinischen Chemie – Exodus oder Renaissance? journal August 2006
Die Bekämpfung multiresistenter Bakterien: aktuelle Strategien zur Entdeckung neuer Antibiotika journal September 2013
Antibacterial Natural Products in Medicinal Chemistry—Exodus or Revival? journal August 2006
Combating Multidrug-Resistant Bacteria: Current Strategies for the Discovery of Novel Antibacterials journal September 2013
Bio‐Organometallic Derivatives of Antibacterial Drugs journal March 2019
Synthesis and Biological Evaluation of Chromium Bioorganometallics Based on the Antibiotic Platensimycin Lead Structure journal November 2009
Fighting Cancer with Transition Metal Complexes: From Naked DNA to Protein and Chromatin Targeting Strategies journal December 2015
Insight into the Biological Activity of Organometallic Acetylsalicylic Acid (Aspirin) Derivatives journal April 2019
Thirty Years of the Drug Candidate NAMI-A and the Myths in the Field of Ruthenium Anticancer Compounds: A Personal Perspective: Thirty Years of the Drug Candidate NAMI-A and the Myths in the Field of Ruthenium Anticancer Compounds: A Personal Perspective journal September 2016
Consequences of the interaction of ?-lactam antibiotics with penicillin binding proteins from sensitive and resistant Staphylococcus aureus strains journal November 1992
Mono- and heterodi-substituted derivatives of ferrocene; β-Lactamic antibiotics journal September 1985
Molecular structures of penicillin-binding proteins and β-lactamases journal October 1994
Organometallic derivatives of penicillins and cephalosporins a new class of semi-synthetic antibiotics journal February 1975
1,1′-Ferrocenyldiacetic Acid Anhydride and its Use in the preparation of heteroannularly substituted ferrocenyl-penicillins and -cephalosporins. journal December 1976
The synthesis and reactions of homonuclear ferrocene acid anhydrides and their use in the preparation of ferrocenylpenicillins and -cephalosporins journal March 1979
A new class of semi-synthetic antibiotics: ferrocenyl-penicillins and -cephalosporins journal March 1976
[20] Processing of X-ray diffraction data collected in oscillation mode book January 1997
Metallo-β-lactamases (classification, activity, genetic organization, structure, zinc coordination) and their superfamily journal December 2007
The development of RAPTA compounds for the treatment of tumors journal January 2016
Ferrocenyl-nucleobase complexes: Synthesis, chemistry and applications journal June 2016
Interactions between proteins and Ru compounds of medicinal interest: A structural perspective journal November 2016
Re(I) carbonyl complexes: Multimodal platforms for inorganic chemical biology journal November 2017
Recent developments in the chemistry of ferrocenyl secondary natural product conjugates journal July 2018
Synthesis, characterization and antibacterial activities of some new ferrocene-containing penems journal March 2010
Ferrocenyl bioconjugates of ampicillin and 6-aminopenicillinic acid – Synthesis, electrochemistry and biological activity journal November 2012
Bioisosteric ferrocenyl aminoquinoline-benzimidazole hybrids: Antimicrobial evaluation and mechanistic insights journal October 2019
Enhancement of antibiotic-activity through complexation with metal ions - Combined ITC, NMR, enzymatic and biological studies journal February 2017
Highly Potent Antibacterial Organometallic Peptide Conjugates journal September 2017
Organometallic–Peptide Bioconjugates: Synthetic Strategies and Medicinal Applications journal September 2016
Metal Compounds against Neglected Tropical Diseases journal September 2018
Metal Drugs and the Anticancer Immune Response journal September 2018
Ru(II) Compounds: Next-Generation Anticancer Metallotherapeutics? journal February 2018
Antibacterial and Antiparasitic Activity of Manganese(I) Tricarbonyl Complexes with Ketoconazole, Miconazole, and Clotrimazole Ligands journal May 2015
Synthesis, Characterization, and Biological Activity of Ferrocenyl Analogues of the Anthelmintic Drug Monepantel journal September 2016
Antibacterial Properties of Metallocenyl-7-ADCA Derivatives and Structure in Complex with CTX-M β-Lactamase journal February 2017
Synthesis, Characterization, and Antimicrobial Activity of Rh III and Ir III β-Diketonato Piano-Stool Compounds journal December 2017
Applying a Trojan Horse Strategy to Ruthenium Complexes in the Pursuit of Novel Antibacterial Agents journal February 2018
Bactericidal Effect of Gold–Chitosan Nanocomposites in Coculture Models of Pathogenic Bacteria and Human Macrophages journal March 2017
Analysis of the Mechanism of Action of Potent Antibacterial Hetero-tri-organometallic Compounds: A Structurally New Class of Antibiotics journal April 2013
Plasmodium falciparum Apicoplast Drugs: Targets or Off-Targets? journal October 2011
Organometallic Anticancer Compounds journal January 2011
Ferrocenyl Derivatives of the Anthelmintic Praziquantel: Design, Synthesis, and Biological Evaluation journal September 2012
In Vitro Metabolic Profile and in Vivo Antischistosomal Activity Studies of (η 6 -Praziquantel)Cr(CO) 3 Derivatives journal November 2013
The medicinal chemistry of ferrocene and its derivatives journal September 2017
Antibacterial properties and atomic resolution X-ray complex crystal structure of a ruthenocene conjugated β-lactam antibiotic journal January 2015
Ferrocifen type anti cancer drugs journal January 2015
Efficacy of a novel ferrocenyl diaryl butene citrate compound as a biocide for preventing healthcare-associated infections journal January 2016
Structure–activity relationships for ruthenium and osmium anticancer agents – towards clinical development journal January 2018
Antimicrobial activity of organometallic isonicotinyl and pyrazinyl ferrocenyl-derived complexes journal January 2017
Organometallic ciprofloxacin conjugates with dual action: synthesis, characterization, and antimicrobial and cytotoxicity studies journal January 2020
Biological activity of manganese( i ) tricarbonyl complexes on multidrug-resistant Gram-negative bacteria: From functional studies to in vivo activity in Galleria mellonella journal January 2019
Application of ferrocene and its derivatives in cancer research journal January 2011
Small organometallic compounds as antibacterial agents journal January 2012
Application of mass spectrometric techniques to delineate the modes-of-action of anticancer metallodrugs journal January 2013
Ceftobiprole: A New Option for Treatment of Skin and Soft-Tissue Infections due to Methicillin-Resistant Staphylococcus aureus journal March 2008
On the Antibacterial Action of Cultures of a Penicillium, with Special Reference to Their Use in the Isolation of B. influenzae journal January 1980
Ceftaroline fosamil: a new broad-spectrum cephalosporin journal April 2011
Coot model-building tools for molecular graphics journal November 2004
The CCP4 suite programs for protein crystallography journal September 1994
Mechanisms of proton relay and product release by Class A β‐lactamase at ultrahigh resolution journal November 2017
Structural Analysis of the Role of Pseudomonas aeruginosa Penicillin-Binding Protein 5 in β-Lactam Resistance journal April 2013

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