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Dos Santos PAS, Rodrigues YC, Marcon DJ, Lobato ARF, Cazuza TB, Gouveia MIM, Silva MJA, Souza AB, Lima LNGC, Quaresma AJPG, Brasiliense DM, Lima KVB. Endemic High-Risk Clone ST277 Is Related to the Spread of SPM-1-Producing Pseudomonas aeruginosa during the COVID-19 Pandemic Period in Northern Brazil. Microorganisms 2023; 11:2069. [PMID: 37630629 PMCID: PMC10457858 DOI: 10.3390/microorganisms11082069] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/20/2023] [Accepted: 07/20/2023] [Indexed: 08/27/2023] Open
Abstract
Pseudomonas aeruginosa is a high-priority bacterial agent that causes healthcare-acquired infections (HAIs), which often leads to serious infections and poor prognosis in vulnerable patients. Its increasing resistance to antimicrobials, associated with SPM production, is a case of public health concern. Therefore, this study aims to determine the antimicrobial resistance, virulence, and genotyping features of P. aeruginosa strains producing SPM-1 in the Northern region of Brazil. To determine the presence of virulence and resistance genes, the PCR technique was used. For the susceptibility profile of antimicrobials, the Kirby-Bauer disk diffusion method was performed on Mueller-Hinton agar. The MLST technique was used to define the ST of the isolates. The exoS+/exoU- virulotype was standard for all strains, with the aprA, lasA, toxA, exoS, exoT, and exoY genes as the most prevalent. All the isolates showed an MDR or XDR profile against the six classes of antimicrobials tested. HRC ST277 played a major role in spreading the SPM-1-producing P. aeruginosa strains.
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Affiliation(s)
- Pabllo Antonny Silva Dos Santos
- Program in Parasitic Biology in the Amazon Region (PPGBPA), State University of Pará (UEPA), Tv. Perebebuí, 2623-Marco, Belém 66087-662, PA, Brazil; (P.A.S.D.S.); (D.J.M.); (L.N.G.C.L.); (D.M.B.)
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
| | - Yan Corrêa Rodrigues
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
- Program in Epidemiology and Health Surveillance (PPGEVS), Evandro Chagas Institute (IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil
- Department of Natural Science, State University of Pará (DCNA/UEPA), Belém 66050-540, PA, Brazil
| | - Davi Josué Marcon
- Program in Parasitic Biology in the Amazon Region (PPGBPA), State University of Pará (UEPA), Tv. Perebebuí, 2623-Marco, Belém 66087-662, PA, Brazil; (P.A.S.D.S.); (D.J.M.); (L.N.G.C.L.); (D.M.B.)
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
| | - Amália Raiana Fonseca Lobato
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
| | - Thalyta Braga Cazuza
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
| | - Maria Isabel Montoril Gouveia
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
| | - Marcos Jessé Abrahão Silva
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
- Program in Epidemiology and Health Surveillance (PPGEVS), Evandro Chagas Institute (IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil
| | - Alex Brito Souza
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
| | - Luana Nepomuceno Gondim Costa Lima
- Program in Parasitic Biology in the Amazon Region (PPGBPA), State University of Pará (UEPA), Tv. Perebebuí, 2623-Marco, Belém 66087-662, PA, Brazil; (P.A.S.D.S.); (D.J.M.); (L.N.G.C.L.); (D.M.B.)
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
- Program in Epidemiology and Health Surveillance (PPGEVS), Evandro Chagas Institute (IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil
| | - Ana Judith Pires Garcia Quaresma
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
| | - Danielle Murici Brasiliense
- Program in Parasitic Biology in the Amazon Region (PPGBPA), State University of Pará (UEPA), Tv. Perebebuí, 2623-Marco, Belém 66087-662, PA, Brazil; (P.A.S.D.S.); (D.J.M.); (L.N.G.C.L.); (D.M.B.)
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
- Program in Epidemiology and Health Surveillance (PPGEVS), Evandro Chagas Institute (IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil
| | - Karla Valéria Batista Lima
- Program in Parasitic Biology in the Amazon Region (PPGBPA), State University of Pará (UEPA), Tv. Perebebuí, 2623-Marco, Belém 66087-662, PA, Brazil; (P.A.S.D.S.); (D.J.M.); (L.N.G.C.L.); (D.M.B.)
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
- Program in Epidemiology and Health Surveillance (PPGEVS), Evandro Chagas Institute (IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil
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Abichabki N, Zacharias LV, Moreira NC, Bellissimo-Rodrigues F, Moreira FL, Benzi JRL, Ogasawara TMC, Ferreira JC, Ribeiro CM, Pavan FR, Pereira LRL, Brancini GTP, Braga GÚL, Zuardi AW, Hallak JEC, Crippa JAS, Lanchote VL, Cantón R, Darini ALC, Andrade LN. Potential cannabidiol (CBD) repurposing as antibacterial and promising therapy of CBD plus polymyxin B (PB) against PB-resistant gram-negative bacilli. Sci Rep 2022; 12:6454. [PMID: 35440801 PMCID: PMC9018834 DOI: 10.1038/s41598-022-10393-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 03/04/2022] [Indexed: 01/24/2023] Open
Abstract
This study aimed to assess the ultrapure cannabidiol (CBD) antibacterial activity and to investigate the antibacterial activity of the combination CBD + polymyxin B (PB) against Gram-negative (GN) bacteria, including PB-resistant Gram-negative bacilli (GNB). We used the standard broth microdilution method, checkerboard assay, and time-kill assay. CBD exhibited antibacterial activity against Gram-positive bacteria, lipooligosaccharide (LOS)-expressing GN diplococcus (GND) (Neisseria gonorrhoeae, Neisseria meningitidis, Moraxella catarrhalis), and Mycobacterium tuberculosis, but not against GNB. For most of the GNB studied, our results showed that low concentrations of PB (≤ 2 µg/mL) allow CBD (≤ 4 µg/mL) to exert antibacterial activity against GNB (e.g., Klebsiella pneumoniae, Escherichia coli, Acinetobacter baumannii), including PB-resistant GNB. CBD + PB also showed additive and/or synergistic effect against LOS-expressing GND. Time-kill assays results showed that the combination CBD + PB leads to a greater reduction in the number of colony forming units per milliliter compared to CBD and PB alone, at the same concentration used in combination, and the combination CBD + PB was synergistic for all four PB-resistant K. pneumoniae isolates evaluated. Our results show that CBD has translational potential and should be further explored as a repurposed antibacterial agent in clinical trials. The antibacterial efficacy of the combination CBD + PB against multidrug-resistant and extensively drug-resistant GNB, especially PB-resistant K. pneumoniae, is particularly promising.
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Affiliation(s)
- Nathália Abichabki
- Department of Clinical Analyses, Toxicology and Food Science (DACTB), School of Pharmaceutical Sciences of Ribeirao Preto (FCFRP), University of São Paulo (USP), Av. do Café, s/nº, Campus Universitário, Ribeirão Preto, SP, 14040-903, Brazil
| | - Luísa V Zacharias
- Department of Clinical Analyses, Toxicology and Food Science (DACTB), School of Pharmaceutical Sciences of Ribeirao Preto (FCFRP), University of São Paulo (USP), Av. do Café, s/nº, Campus Universitário, Ribeirão Preto, SP, 14040-903, Brazil
| | - Natália C Moreira
- Department of Clinical Analyses, Toxicology and Food Science (DACTB), School of Pharmaceutical Sciences of Ribeirao Preto (FCFRP), University of São Paulo (USP), Av. do Café, s/nº, Campus Universitário, Ribeirão Preto, SP, 14040-903, Brazil
| | - Fernando Bellissimo-Rodrigues
- Department of Social Medicine, Ribeirão Preto Medical School (FMRP), University of São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Fernanda L Moreira
- Department of Clinical Analyses, Toxicology and Food Science (DACTB), School of Pharmaceutical Sciences of Ribeirao Preto (FCFRP), University of São Paulo (USP), Av. do Café, s/nº, Campus Universitário, Ribeirão Preto, SP, 14040-903, Brazil
| | - Jhohann R L Benzi
- Department of Clinical Analyses, Toxicology and Food Science (DACTB), School of Pharmaceutical Sciences of Ribeirao Preto (FCFRP), University of São Paulo (USP), Av. do Café, s/nº, Campus Universitário, Ribeirão Preto, SP, 14040-903, Brazil
| | - Tânia M C Ogasawara
- Department of Clinical Analyses, Toxicology and Food Science (DACTB), School of Pharmaceutical Sciences of Ribeirao Preto (FCFRP), University of São Paulo (USP), Av. do Café, s/nº, Campus Universitário, Ribeirão Preto, SP, 14040-903, Brazil
| | - Joseane C Ferreira
- Department of Clinical Analyses, Toxicology and Food Science (DACTB), School of Pharmaceutical Sciences of Ribeirao Preto (FCFRP), University of São Paulo (USP), Av. do Café, s/nº, Campus Universitário, Ribeirão Preto, SP, 14040-903, Brazil
| | - Camila M Ribeiro
- Department of Biological Sciences, School of Pharmaceutical Sciences (FCF), São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Fernando R Pavan
- Department of Biological Sciences, School of Pharmaceutical Sciences (FCF), São Paulo State University (UNESP), Araraquara, SP, Brazil
| | - Leonardo R L Pereira
- Department of Pharmaceutical Sciences (DCF), School of Pharmaceutical Sciences of Ribeirão Preto (FCFRP), University of São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Guilherme T P Brancini
- Department of Clinical Analyses, Toxicology and Food Science (DACTB), School of Pharmaceutical Sciences of Ribeirao Preto (FCFRP), University of São Paulo (USP), Av. do Café, s/nº, Campus Universitário, Ribeirão Preto, SP, 14040-903, Brazil
| | - Gilberto Ú L Braga
- Department of Clinical Analyses, Toxicology and Food Science (DACTB), School of Pharmaceutical Sciences of Ribeirao Preto (FCFRP), University of São Paulo (USP), Av. do Café, s/nº, Campus Universitário, Ribeirão Preto, SP, 14040-903, Brazil
| | - Antonio W Zuardi
- Department of Neurosciences and Behavioral Sciences, Ribeirão Preto Medical School (FMRP), University of São Paulo (USP), Ribeirão Preto, SP, Brazil
- National Institute of Science and Technology for Translational Medicine (INCT-TM), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brasília, DF, Brazil
| | - Jaime E C Hallak
- Department of Neurosciences and Behavioral Sciences, Ribeirão Preto Medical School (FMRP), University of São Paulo (USP), Ribeirão Preto, SP, Brazil
- National Institute of Science and Technology for Translational Medicine (INCT-TM), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brasília, DF, Brazil
| | - José A S Crippa
- Department of Neurosciences and Behavioral Sciences, Ribeirão Preto Medical School (FMRP), University of São Paulo (USP), Ribeirão Preto, SP, Brazil
- National Institute of Science and Technology for Translational Medicine (INCT-TM), Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brasília, DF, Brazil
| | - Vera L Lanchote
- Department of Clinical Analyses, Toxicology and Food Science (DACTB), School of Pharmaceutical Sciences of Ribeirao Preto (FCFRP), University of São Paulo (USP), Av. do Café, s/nº, Campus Universitário, Ribeirão Preto, SP, 14040-903, Brazil
| | - Rafael Cantón
- Hospital Universitario Ramón y Cajal and Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - Ana Lúcia C Darini
- Department of Clinical Analyses, Toxicology and Food Science (DACTB), School of Pharmaceutical Sciences of Ribeirao Preto (FCFRP), University of São Paulo (USP), Av. do Café, s/nº, Campus Universitário, Ribeirão Preto, SP, 14040-903, Brazil
| | - Leonardo N Andrade
- Department of Clinical Analyses, Toxicology and Food Science (DACTB), School of Pharmaceutical Sciences of Ribeirao Preto (FCFRP), University of São Paulo (USP), Av. do Café, s/nº, Campus Universitário, Ribeirão Preto, SP, 14040-903, Brazil.
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Galetti R, Andrade LN, Varani AM, Darini ALC. SPM-1-producing Pseudomonas aeruginosa ST277 carries a chromosomal pack of acquired resistance genes: An example of high-risk clone associated with 'intrinsic resistome'. J Glob Antimicrob Resist 2018; 16:183-186. [PMID: 30586621 DOI: 10.1016/j.jgar.2018.12.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 11/14/2018] [Accepted: 12/17/2018] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVES The purpose of this study was to investigate the resistome of an SPM-1-producing Pseudomonas aeruginosa ST277 isolate (HC84) from Brazil. METHODS Whole-genome sequencing of P. aeruginosa HC84 was performed using an Ion Proton™ System. De novo assembly was carried out using CLC Genomics Workbench 8.0, and gene prediction was performed using the Prokka pipeline. RESULTS AND CONCLUSION Here we describe the resistome of SPM-1-producing P. aeruginosa ST277 (HC84) consisting of 13 different antimicrobial resistance genes [blaSPM-1, rmtD, aacA4, aadA7, blaOXA-56, blaOXA-396, blaPAO, aph(3')-IIb, aac(6')-Ib-cr, crpP, catB7, cmx and fosA). This particular chromosomal pack of resistance genes is strongly associated with clonal dissemination and suggests an important role in the persistence of this clone in Brazilian nosocomial infections. For that reason, could we already consider the 'chromosomal pack of acquired resistance genes' like an 'ST277 intrinsic resistome'? This is an example of chromosomal accumulation of acquired resistance genes as well as integrative and conjugative elements into a successful bacterial pathogen and calls attention to the evolution of other species driving to insertion and persistence of multiple acquired resistance genes in the bacterial chromosome.
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Affiliation(s)
- Renata Galetti
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil.
| | - Leonardo Neves Andrade
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Alessandro M Varani
- Faculdade de Ciencias Agrárias e Veterinárias, Universidade Estadual Paulista 'Julio de Mesquita Filho', Jaboticabal, Brazil
| | - Ana Lúcia Costa Darini
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
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Abboud MI, Hinchliffe P, Brem J, Macsics R, Pfeffer I, Makena A, Umland KD, Rydzik AM, Li GB, Spencer J, Claridge TDW, Schofield CJ. 19
F-NMR Reveals the Role of Mobile Loops in Product and Inhibitor Binding by the São Paulo Metallo-β-Lactamase. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612185] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Martine I. Abboud
- Department of Chemistry; University of Oxford; 12 Mansfield Road OX1 3TA Oxford UK
| | - Philip Hinchliffe
- School of Cellular and Molecular Medicine; University of Bristol; Bristol UK
| | - Jürgen Brem
- Department of Chemistry; University of Oxford; 12 Mansfield Road OX1 3TA Oxford UK
| | - Robert Macsics
- Department of Chemistry; University of Oxford; 12 Mansfield Road OX1 3TA Oxford UK
| | - Inga Pfeffer
- Department of Chemistry; University of Oxford; 12 Mansfield Road OX1 3TA Oxford UK
| | - Anne Makena
- Department of Chemistry; University of Oxford; 12 Mansfield Road OX1 3TA Oxford UK
| | - Klaus-Daniel Umland
- Department of Chemistry; University of Oxford; 12 Mansfield Road OX1 3TA Oxford UK
| | - Anna M. Rydzik
- Department of Chemistry; University of Oxford; 12 Mansfield Road OX1 3TA Oxford UK
| | - Guo-Bo Li
- Department of Chemistry; University of Oxford; 12 Mansfield Road OX1 3TA Oxford UK
| | - James Spencer
- School of Cellular and Molecular Medicine; University of Bristol; Bristol UK
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Abboud MI, Hinchliffe P, Brem J, Macsics R, Pfeffer I, Makena A, Umland KD, Rydzik AM, Li GB, Spencer J, Claridge TDW, Schofield CJ. 19 F-NMR Reveals the Role of Mobile Loops in Product and Inhibitor Binding by the São Paulo Metallo-β-Lactamase. Angew Chem Int Ed Engl 2017; 56:3862-3866. [PMID: 28252254 PMCID: PMC5396265 DOI: 10.1002/anie.201612185] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 01/16/2016] [Indexed: 01/19/2023]
Abstract
Resistance to β‐lactam antibiotics mediated by metallo‐β‐lactamases (MBLs) is a growing problem. We describe the use of protein‐observe 19F‐NMR (PrOF NMR) to study the dynamics of the São Paulo MBL (SPM‐1) from β‐lactam‐resistant Pseudomonas aeruginosa. Cysteinyl variants on the α3 and L3 regions, which flank the di‐ZnII active site, were selectively 19F‐labeled using 3‐bromo‐1,1,1‐trifluoroacetone. The PrOF NMR results reveal roles for the mobile α3 and L3 regions in the binding of both inhibitors and hydrolyzed β‐lactam products to SPM‐1. These results have implications for the mechanisms and inhibition of MBLs by β‐lactams and non‐β‐lactams and illustrate the utility of PrOF NMR for efficiently analyzing metal chelation, identifying new binding modes, and studying protein binding from a mixture of equilibrating isomers.
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Affiliation(s)
- Martine I Abboud
- Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA, Oxford, UK
| | - Philip Hinchliffe
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, UK
| | - Jürgen Brem
- Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA, Oxford, UK
| | - Robert Macsics
- Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA, Oxford, UK
| | - Inga Pfeffer
- Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA, Oxford, UK
| | - Anne Makena
- Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA, Oxford, UK
| | - Klaus-Daniel Umland
- Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA, Oxford, UK
| | - Anna M Rydzik
- Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA, Oxford, UK
| | - Guo-Bo Li
- Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA, Oxford, UK
| | - James Spencer
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, UK
| | - Timothy D W Claridge
- Department of Chemistry, University of Oxford, 12 Mansfield Road, OX1 3TA, Oxford, UK
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Araujo BF, Ferreira ML, de Campos PA, Royer S, Batistão DWDF, Dantas RCC, Gonçalves IR, Faria ALS, de Brito CS, Yokosawa J, Gontijo-Filho PP, Ribas RM. Clinical and Molecular Epidemiology of Multidrug-Resistant P. aeruginosa Carrying aac(6')-Ib-cr, qnrS1 and blaSPM Genes in Brazil. PLoS One 2016; 11:e0155914. [PMID: 27219003 PMCID: PMC4878783 DOI: 10.1371/journal.pone.0155914] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 05/08/2016] [Indexed: 11/19/2022] Open
Abstract
We described a comprehensive analysis of the molecular epidemiology of multidrug-resistant (MDR) P. aeruginosa. Molecular analysis included typing by Pulsed Field Gel Electrophoresis, identification of genes of interest through PCR-based assays and sequencing of target genes. Case-control study was conducted to better understand the prognostic of patients and the impact of inappropriate therapy in patients with bacteremia, as well as the risk factors of MDR infections. We observed a high rate of MDR isolates (40.7%), and 51.0% of them was independently associated with inappropriate antibiotic therapy. Bacteremia was detected in 66.9% of patients, and prolonged hospital stay was expressive in those resistant to fluoroquinolone. Plasmid-mediated quinolone resistance genes (PMQR), qnrS1 and aac(6')Ib-cr, were detected in two different nosocomial isolates (5.3%), and the aac(6')-Ib7 variant was detected at a high frequency (87.5%) in those negative to PMQR. The presence of mutations in gyrA and parC genes was observed in 100% and 85% of selected isolates, respectively. Isolates harboring PMQR genes or mutations in gyrA and parC were not closely related, except in those containing SPM (São Paulo metallo-β-lactamase) clone. In addition, there is no study published in Brazil to date reporting the presence of Pseudomonas aeruginosa isolates harboring both qnrS1 and aac(6')Ib-cr genes, with alarming frequency of patients with inappropriate therapy.
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Affiliation(s)
- Bruna Fuga Araujo
- Instituto de Ciências Biomédicas (ICBIM), Laboratory of Molecular Microbiology, Universidade Federal de Uberlandia (UFU), Uberlandia, Minas Gerais, Brazil
| | - Melina Lorraine Ferreira
- Instituto de Ciências Biomédicas (ICBIM), Laboratory of Molecular Microbiology, Universidade Federal de Uberlandia (UFU), Uberlandia, Minas Gerais, Brazil
| | - Paola Amaral de Campos
- Instituto de Ciências Biomédicas (ICBIM), Laboratory of Molecular Microbiology, Universidade Federal de Uberlandia (UFU), Uberlandia, Minas Gerais, Brazil
| | - Sabrina Royer
- Instituto de Ciências Biomédicas (ICBIM), Laboratory of Molecular Microbiology, Universidade Federal de Uberlandia (UFU), Uberlandia, Minas Gerais, Brazil
| | - Deivid William da Fonseca Batistão
- Instituto de Ciências Biomédicas (ICBIM), Laboratory of Molecular Microbiology, Universidade Federal de Uberlandia (UFU), Uberlandia, Minas Gerais, Brazil
| | - Raquel Cristina Cavalcanti Dantas
- Instituto de Ciências Biomédicas (ICBIM), Laboratory of Molecular Microbiology, Universidade Federal de Uberlandia (UFU), Uberlandia, Minas Gerais, Brazil
| | - Iara Rossi Gonçalves
- Instituto de Ciências Biomédicas (ICBIM), Laboratory of Molecular Microbiology, Universidade Federal de Uberlandia (UFU), Uberlandia, Minas Gerais, Brazil
| | - Ana Luiza Souza Faria
- Instituto de Ciências Biomédicas (ICBIM), Laboratory of Molecular Microbiology, Universidade Federal de Uberlandia (UFU), Uberlandia, Minas Gerais, Brazil
| | - Cristiane Silveira de Brito
- Instituto de Ciências Biomédicas (ICBIM), Laboratory of Molecular Microbiology, Universidade Federal de Uberlandia (UFU), Uberlandia, Minas Gerais, Brazil
| | - Jonny Yokosawa
- Instituto de Ciências Biomédicas (ICBIM), Laboratory of Virology, Universidade Federal de Uberlandia (UFU), Uberlandia, Minas Gerais, Brazil
| | - Paulo Pinto Gontijo-Filho
- Instituto de Ciências Biomédicas (ICBIM), Laboratory of Molecular Microbiology, Universidade Federal de Uberlandia (UFU), Uberlandia, Minas Gerais, Brazil
| | - Rosineide Marques Ribas
- Instituto de Ciências Biomédicas (ICBIM), Laboratory of Molecular Microbiology, Universidade Federal de Uberlandia (UFU), Uberlandia, Minas Gerais, Brazil
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Cavalcanti FLDS, Mirones CR, Paucar ER, Montes LÁ, Leal-Balbino TC, Morais MMCD, Martínez-Martínez L, Ocampo-Sosa AA. Mutational and acquired carbapenem resistance mechanisms in multidrug resistant Pseudomonas aeruginosa clinical isolates from Recife, Brazil. Mem Inst Oswaldo Cruz 2015; 110:1003-9. [PMID: 26676375 PMCID: PMC4708020 DOI: 10.1590/0074-02760150233] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 11/18/2015] [Indexed: 01/10/2023] Open
Abstract
An investigation was carried out into the genetic mechanisms responsible for
multidrug resistance in nine carbapenem-resistant Pseudomonas
aeruginosaisolates from different hospitals in Recife, Brazil.
Susceptibility to antimicrobial agents was determined by broth microdilution.
Polymerase chain reaction (PCR) was employed to detect the presence of genes encoding
β-lactamases, aminoglycoside-modifying enzymes (AMEs), 16S rRNA methylases,
integron-related genes and OprD. Expression of genes coding for efflux pumps and AmpC
cephalosporinase were assessed by quantitative PCR. The outer membrane proteins were
separated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The
blaSPM-1, blaKPC-2 and blaGES-1
genes were detected in P. aeruginosaisolates in addition to
different AME genes. The loss of OprD in nine isolates was mainly due to frameshift
mutations, premature stop codons and point mutations. An association of loss of OprD
with the overexpression of MexAB-OprM and MexXY-OprM was observed in most isolates.
Hyper-production of AmpC was also observed in three isolates. Clonal relationship of
the isolates was determined by repetitive element palindromic-PCR and multilocus
sequence typing. Our results show that the loss of OprD along with overexpression of
efflux pumps and β-lactamase production were responsible for the multidrug resistance
in the isolates analysed.
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Affiliation(s)
- Felipe Lira de Sá Cavalcanti
- Laboratório de Resistência Microbiana, Instituto de Ciências Biológicas, Universidade de Pernambuco, Recife, PE, Brasil
| | - Cristina Rodríguez Mirones
- Hospital Universitario Marqués de Valdecilla, Instituto de Investigación Marqués de Valdecilla, Santander, Spain
| | - Elena Román Paucar
- Hospital Universitario Marqués de Valdecilla, Instituto de Investigación Marqués de Valdecilla, Santander, Spain
| | - Laura Álvarez Montes
- Hospital Universitario Marqués de Valdecilla, Instituto de Investigación Marqués de Valdecilla, Santander, Spain
| | | | | | - Luis Martínez-Martínez
- Hospital Universitario Marqués de Valdecilla, Instituto de Investigación Marqués de Valdecilla, Santander, Spain
| | - Alain Antonio Ocampo-Sosa
- Hospital Universitario Marqués de Valdecilla, Instituto de Investigación Marqués de Valdecilla, Santander, Spain
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