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Fernández-Vázquez JL, Hernández-González IL, Castillo-Ramírez S, Jarillo-Quijada MD, Gayosso-Vázquez C, Mateo-Estrada VE, Morfín-Otero R, Rodríguez-Noriega E, Santos-Preciado JI, Alcántar-Curiel MD. Pandrug-resistant Acinetobacter baumannii from different clones and regions in Mexico have a similar plasmid carrying the blaOXA-72 gene. Front Cell Infect Microbiol 2023; 13:1278819. [PMID: 38192399 PMCID: PMC10773864 DOI: 10.3389/fcimb.2023.1278819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 12/01/2023] [Indexed: 01/10/2024] Open
Abstract
Background Multidrug-resistant Acinetobacter baumannii is a common hospital-acquired pathogen. The increase in antibiotic resistance is commonly due to the acquisition of mobile genetic elements carrying antibiotic resistance genes. To comprehend this, we analyzed the resistome and virulome of Mexican A. baumannii multidrug-resistant isolates. Methods Six clinical strains of A. baumannii from three Mexican hospitals were sequenced using the Illumina platform, the genomes were assembled with SPAdes and annotated with Prokka. Plasmid SPAdes and MobRecon were used to identify the potential plasmid sequences. Sequence Type (ST) assignation under the MLST Oxford scheme was performed using the PubMLST database. Homologous gene search for known virulent factors was performed using the virulence factor database VFDB and an in silico prediction of the resistome was conducted via the ResFinder databases. Results The six strains studied belong to different STs and clonal complexes (CC): two strains were ST208 and one was ST369; these two STs belong to the same lineage CC92, which is part of the international clone (IC) 2. Another two strains were ST758 and one was ST1054, both STs belonging to the same lineage CC636, which is within IC5. The resistome analysis of the six strains identified between 7 to 14 antibiotic resistance genes to different families of drugs, including beta-lactams, aminoglycosides, fluoroquinolones and carbapenems. We detected between 1 to 4 plasmids per strain with sizes from 1,800 bp to 111,044 bp. Two strains from hospitals in Mexico City and Guadalajara had a plasmid each of 10,012 bp pAba78r and pAba79f, respectively, which contained the bla OXA-72 gene. The structure of this plasmid showed the same 13 genes in both strains, but 4 of them were inverted in one of the strains. Finally, the six strains contain 49 identical virulence genes related to immune response evasion, quorum-sensing, and secretion systems, among others. Conclusion Resistance to carbapenems due to pAba78r and pAba79f plasmids in Aba pandrug-resistant strains from different geographic areas of Mexico and different clones was detected. Our results provide further evidence that plasmids are highly relevant for the horizontal transfer of antibiotic resistance genes between different clones of A. baumannii.
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Affiliation(s)
- José Luis Fernández-Vázquez
- Laboratorio de Infectología, Microbiología e Inmunología Clínica, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Ismael Luis Hernández-González
- Programa de Genómica Evolutiva, Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Mexico
| | - Santiago Castillo-Ramírez
- Programa de Genómica Evolutiva, Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Mexico
| | - Ma Dolores Jarillo-Quijada
- Laboratorio de Infectología, Microbiología e Inmunología Clínica, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Catalina Gayosso-Vázquez
- Laboratorio de Infectología, Microbiología e Inmunología Clínica, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Valeria Eréndira Mateo-Estrada
- Programa de Genómica Evolutiva, Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Mexico
| | - Rayo Morfín-Otero
- Hospital Civil de Guadalajara “Fray Antonio Alcalde” e Instituto de Patología Infecciosa y Experimental, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico
| | - Eduardo Rodríguez-Noriega
- Hospital Civil de Guadalajara “Fray Antonio Alcalde” e Instituto de Patología Infecciosa y Experimental, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico
| | - José Ignacio Santos-Preciado
- Laboratorio de Infectología, Microbiología e Inmunología Clínica, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - María Dolores Alcántar-Curiel
- Laboratorio de Infectología, Microbiología e Inmunología Clínica, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
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Nageeb WM, AlHarbi N, Alrehaili AA, Zakai SA, Elfadadny A, Hetta HF. Global genomic epidemiology of chromosomally mediated non-enzymatic carbapenem resistance in Acinetobacter baumannii: on the way to predict and modify resistance. Front Microbiol 2023; 14:1271733. [PMID: 37869654 PMCID: PMC10587612 DOI: 10.3389/fmicb.2023.1271733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 09/05/2023] [Indexed: 10/24/2023] Open
Abstract
Introduction Although carbapenemases are frequently reported in resistant A. baumannii clinical isolates, other chromosomally mediated elements of resistance that are considered essential are frequently underestimated. Having a wide substrate range, multidrug efflux pumps frequently underlie antibiotic treatment failure. Recognizing and exploiting variations in multidrug efflux pumps and penicillin-binding proteins (PBPs) is an essential approach in new antibiotic drug discovery and engineering to meet the growing challenge of multidrug-resistant Gram-negative bacteria. Methods A total of 980 whole genome sequences of A. baumannii were analyzed. Nucleotide sequences for the genes studied were queried against a custom database of FASTA sequences using the Bacterial and Viral Bioinformatics Resource Center (BV-BRC) system. The correlation between different variants and carbapenem Minimum Inhibitory Concentrations (MICs) was studied. PROVEAN and I-Mutant predictor suites were used to predict the effect of the studied amino acid substitutions on protein function and protein stability. Both PsiPred and FUpred were used for domain and secondary structure prediction. Phylogenetic reconstruction was performed using SANS serif and then visualized using iTOL and Phandango. Results Exhibiting the highest detection rate, AdeB codes for an important efflux-pump structural protein. T48V, T584I, and P660Q were important variants identified in the AdeB-predicted multidrug efflux transporter pore domains. These can act as probable targets for designing new efflux-pump inhibitors. Each of AdeC Q239L and AdeS D167N can also act as probable targets for restoring carbapenem susceptibility. Membrane proteins appear to have lower predictive potential than efflux pump-related changes. OprB and OprD changes show a greater effect than OmpA, OmpW, Omp33, and CarO changes on carbapenem susceptibility. Functional and statistical evidence make the variants T636A and S382N at PBP1a good markers for imipenem susceptibility and potential important drug targets that can modify imipenem resistance. In addition, PBP3_370, PBP1a_T636A, and PBP1a_S382N may act as potential drug targets that can be exploited to counteract imipenem resistance. Conclusion The study presents a comprehensive epidemiologic and statistical analysis of potential membrane proteins and efflux-pump variants related to carbapenem susceptibility in A. baumannii, shedding light on their clinical utility as diagnostic markers and treatment modification targets for more focused studies of candidate elements.
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Affiliation(s)
- Wedad M. Nageeb
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | - Nada AlHarbi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Amani A. Alrehaili
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, Taif, Saudi Arabia
| | - Shadi A. Zakai
- Department of Clinical Microbiology and Immunology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ahmed Elfadadny
- Department of Animal Internal Medicine, Faculty of Veterinary Medicine, Damanhour University, Damanhour, El-Beheira, Egypt
| | - Helal F. Hetta
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt
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Moreno-Manjón J, Castillo-Ramírez S, Jolley KA, Maiden MCJ, Gayosso-Vázquez C, Fernández-Vázquez JL, Mateo-Estrada V, Giono-Cerezo S, Alcántar-Curiel MD. Acinetobacter baumannii IC2 and IC5 Isolates with Co-Existing blaOXA-143-like and blaOXA-72 and Exhibiting Strong Biofilm Formation in a Mexican Hospital. Microorganisms 2023; 11:2316. [PMID: 37764160 PMCID: PMC10536109 DOI: 10.3390/microorganisms11092316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/03/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
Acinetobacter baumannii is an opportunistic pathogen responsible for healthcare-associated infections (HAIs) and outbreaks. Antimicrobial resistance mechanisms and virulence factors allow it to survive and spread in the hospital environment. However, the molecular mechanisms of these traits and their association with international clones are frequently unknown in low- and middle-income countries. Here, we analyze the phenotype and genotype of seventy-six HAIs and outbreak-causing A. baumannii isolates from a Mexican hospital over ten years, with special attention to the carbapenem resistome and biofilm formation. The isolates belonged to the global international clone (IC) 2 and the Latin America endemic IC5 and were predominantly extensively drug-resistant (XDR). Oxacillinases were identified as a common source of carbapenem resistance. We noted the presence of the blaOXA-143-like family (not previously described in Mexico), the blaOXA-72 and the blaOXA-398 found in both ICs. A low prevalence of efflux pump overexpression activity associated with carbapenem resistance was observed. Finally, strong biofilm formation was found, and significant biofilm-related genes were identified, including bfmRS, csuA/BABCDE, pgaABCD and ompA. This study provides a comprehensive profile of the carbapenem resistome of A. baumannii isolates belonging to the same pulse type, along with their significant biofilm formation capacity. Furthermore, it contributes to a better understanding of their role in the recurrence of infection and the endemicity of these isolates in a Mexican hospital.
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Affiliation(s)
- Julia Moreno-Manjón
- Laboratorio de Infectología, Microbiología e Inmunología Clínica, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México 06720, Mexico; (J.M.-M.); (C.G.-V.); (J.L.F.-V.)
- Laboratorio de Bacteriología Médica, Posgrado en Ciencias Quimicobiológicas, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México 11350, Mexico
| | - Santiago Castillo-Ramírez
- Programa de Genómica Evolutiva, Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca 62209, Mexico; (S.C.-R.); (V.M.-E.)
| | - Keith A. Jolley
- Department of Biology, University of Oxford, Oxford OX1 3SZ, UK; (K.A.J.); (M.C.J.M.)
| | - Martin C. J. Maiden
- Department of Biology, University of Oxford, Oxford OX1 3SZ, UK; (K.A.J.); (M.C.J.M.)
| | - Catalina Gayosso-Vázquez
- Laboratorio de Infectología, Microbiología e Inmunología Clínica, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México 06720, Mexico; (J.M.-M.); (C.G.-V.); (J.L.F.-V.)
| | - José Luis Fernández-Vázquez
- Laboratorio de Infectología, Microbiología e Inmunología Clínica, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México 06720, Mexico; (J.M.-M.); (C.G.-V.); (J.L.F.-V.)
| | - Valeria Mateo-Estrada
- Programa de Genómica Evolutiva, Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca 62209, Mexico; (S.C.-R.); (V.M.-E.)
| | - Silvia Giono-Cerezo
- Laboratorio de Bacteriología Médica, Posgrado en Ciencias Quimicobiológicas, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México 11350, Mexico
| | - María Dolores Alcántar-Curiel
- Laboratorio de Infectología, Microbiología e Inmunología Clínica, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México 06720, Mexico; (J.M.-M.); (C.G.-V.); (J.L.F.-V.)
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4
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Rojas-Larios F, Martínez-Guerra BA, López-Jácome LE, Bolado-Martínez E, Vázquez-Larios MDR, Velázquez-Acosta MDC, Romero-Romero D, Mireles-Dávalos CD, Quintana-Ponce S, Feliciano-Guzmán JM, Pérez-Hernandez JM, Correa-León YP, López-Gutiérrez E, Rodriguez-Noriega E, González-Díaz E, Choy-Chang EV, Mena-Ramírez JP, Monroy-Colín VA, Ponce-de-León-Garduño A, Alcaraz-Espejel M, Avilés-Benítez LK, Quintanilla-Cazares LJ, Ramírez-Alanís E, Barajas-Magallón JM, Padilla-Ibarra C, Ballesteros-Silva MB, Atanacio-Sixto NA, Morales-de-la-Peña CT, Galindo-Méndez M, Pérez-Vicelis T, Jacobo-Baca G, Moreno-Méndez MI, Mora-Pacheco MDLL, Gutiérrez-Brito M, Sánchez-Godínez XY, Navarro-Vargas NV, Mercado-Bravo LE, Delgado-Barrientos A, Santiago-Calderón MA, López-Ovilla I, Molina-Chavarria A, Rincón-Zuno J, Franco-Cendejas R, Miranda-Mauricio S, Márquez-Avalos IC, López-García M, Duarte-Miranda LS, Cetina-Umaña CM, Barroso-Herrera-Y-Cairo IE, López-Moreno LI, Garza-González E. Active Surveillance of Antimicrobial Resistance and Carbapenemase-Encoding Genes According to Sites of Care and Age Groups in Mexico: Results from the INVIFAR Network. Pathogens 2023; 12:1144. [PMID: 37764952 PMCID: PMC10537696 DOI: 10.3390/pathogens12091144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/29/2023] Open
Abstract
We analyzed the antimicrobial resistance (AMR) data of 6519 clinical isolates of Escherichia coli (n = 3985), Klebsiella pneumoniae (n = 775), Acinetobacter baumannii (n = 163), Pseudomonas aeruginosa (n = 781), Enterococcus faecium (n = 124), and Staphylococcus aureus (n = 691) from 43 centers in Mexico. AMR assays were performed using commercial microdilution systems (37/43) and the disk diffusion susceptibility method (6/43). The presence of carbapenemase-encoding genes was assessed using PCR. Data from centers regarding site of care, patient age, and clinical specimen were collected. According to the site of care, the highest AMR was observed in E. coli, K. pneumoniae, and P. aeruginosa isolates from ICU patients. In contrast, in A. baumannii, higher AMR was observed in isolates from hospitalized non-ICU patients. According to age group, the highest AMR was observed in the ≥60 years age group for E. coli, E. faecium, and S. aureus, and in the 19-59 years age group for A. baumannii and P. aeruginosa. According to clinical specimen type, a higher AMR was observed in E. coli, K. pneumoniae, and P. aeruginosa isolates from blood specimens. The most frequently detected carbapenemase-encoding gene in E. coli was blaNDM (84%).
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Affiliation(s)
- Fabian Rojas-Larios
- Laboratorio de Microbiología, Hospital Regional Universitario de Colima, Colima 28040, Mexico
| | - Bernardo Alfonso Martínez-Guerra
- Departamento de Infectología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México 14080, Mexico
| | - Luis Esaú López-Jácome
- Servicio de Infectología, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México 14389, Mexico
| | - Enrique Bolado-Martínez
- Departamento de Ciencias Químico-Biológicas, Universidad de Sonora, Hermosillo 83000, Mexico
| | - María Del Rosario Vázquez-Larios
- Laboratorio de Microbiología, Servicio de Infectología y Microbiología Cínica, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City 14080, Mexico
| | | | | | - Christian Daniel Mireles-Dávalos
- Laboratorio de Microbiología Clínica, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, Mexico City 14080, Mexico
| | - Sandra Quintana-Ponce
- Facultad de Ciencias Naturales, Universidad Autónoma de Guerrero, Chilpancingo 39000, Mexico
| | | | - José Miguel Pérez-Hernandez
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey 66460, Mexico
| | - Yoselin Paola Correa-León
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey 66460, Mexico
| | - Eduardo López-Gutiérrez
- Área de Microbiología, Laboratorio Clínico, Hospital Regional de alta Especialidad de Oaxaca, Oaxaca 71256, Mexico
| | - Eduardo Rodriguez-Noriega
- Instituto de Patología Infecciosa y Experimental, Centro Universitario Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44280, Mexico
| | - Esteban González-Díaz
- Instituto de Patología Infecciosa y Experimental, Centro Universitario Ciencias de la Salud, Universidad de Guadalajara, Guadalajara 44280, Mexico
- Departamento de Medicina Preventiva, Hospital Civil de Guadalajara, Fray Antonio Alcalde, Guadalajara 44280, Mexico
| | - Elena Victoria Choy-Chang
- Departamento de Bacteriología, Hospital General de Zona No.1 IMSS "Nueva Frontera", Tapachula 30767, Mexico
| | - Juan Pablo Mena-Ramírez
- Laboratorio de Microbiología, Hospital General de Zona No. 21 IMSS, Centro Universitario de los Altos (CUALTOS), Universidad de Guadalajara, Tepatitlán de Morelos 47630, Mexico
| | | | - Alfredo Ponce-de-León-Garduño
- Departamento de Infectología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México 14080, Mexico
| | | | - Laura Karina Avilés-Benítez
- Laboratorio de Microbiología y Parasitología, Hospital Infantil de Morelia "Eva Sámano de López Mateos", Morelia 58253, Mexico
| | | | | | | | - Cecilia Padilla-Ibarra
- Laboratorio Clínico, Hospital General de Estado "Dr. Ernesto Ramos Bours", Hermosillo 83000, Mexico
| | | | | | | | | | - Talía Pérez-Vicelis
- Hospital Regional de Alta Especialidad Bicentenario de la Independencia, Tultitlán 54916, Mexico
| | - Guillermo Jacobo-Baca
- Centro Universitario de Salud, Universidad Autónoma de Nuevo León, Monterrey 66460, Mexico
| | | | | | | | | | | | | | | | | | - Ismelda López-Ovilla
- Hospital Chiapas Nos Une Dr. Jesús Gilberto Gómez Maza, Tuxtla Gutiérrez 29045, Mexico
| | | | - Joaquín Rincón-Zuno
- Instituto Materno Infantil del Estado de México, Toluca de Lerdo 50170, Mexico
| | - Rafael Franco-Cendejas
- Servicio de Infectología, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México 14389, Mexico
| | | | | | - Maribel López-García
- Hospital de la Madre y el Niño Guerrerense, Chilpancingo de los Bravo 39075, Mexico
| | | | | | | | | | - Elvira Garza-González
- Departamento de Bioquímica y Medicina Molecular, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey 66460, Mexico
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Castanheira M, Mendes RE, Gales AC. Global Epidemiology and Mechanisms of Resistance of Acinetobacter baumannii-calcoaceticus Complex. Clin Infect Dis 2023; 76:S166-S178. [PMID: 37125466 PMCID: PMC10150277 DOI: 10.1093/cid/ciad109] [Citation(s) in RCA: 32] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023] Open
Abstract
Acinetobacter baumannii-calcoaceticus complex is the most commonly identified species in the genus Acinetobacter and it accounts for a large percentage of nosocomial infections, including bacteremia, pneumonia, and infections of the skin and urinary tract. A few key clones of A. baumannii-calcoaceticus are currently responsible for the dissemination of these organisms worldwide. Unfortunately, multidrug resistance is a common trait among these clones due to their unrivalled adaptive nature. A. baumannii-calcoaceticus isolates can accumulate resistance traits by a plethora of mechanisms, including horizontal gene transfer, natural transformation, acquisition of mutations, and mobilization of genetic elements that modulate expression of intrinsic and acquired genes.
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Affiliation(s)
| | | | - Ana C Gales
- Division of Infectious Diseases, Department of Internal Medicine, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil
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Worldwide Prevalence of Carbapenem Resistance in Acinetobacter baumannii. INFECTIOUS DISEASES IN CLINICAL PRACTICE 2023. [DOI: 10.1097/ipc.0000000000001236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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Origanum vulgare essential oil: antibacterial activities and synergistic effect with polymyxin B against multidrug-resistant Acinetobacter baumannii. Mol Biol Rep 2020; 47:9615-9625. [PMID: 33190200 DOI: 10.1007/s11033-020-05989-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 11/06/2020] [Indexed: 01/01/2023]
Abstract
Antimicrobial resistance is increasing around the world and the search for effective treatment options, such as new antibiotics and combination therapy is urgently needed. The present study evaluates oregano essential oil (OEO) antibacterial activities against reference and multidrug-resistant clinical isolates of Acinetobacter baumannii (Ab-MDR). Additionally, the combination of the OEO and polymyxin B was evaluated against Ab-MDR. Ten clinical isolates were characterized at the species level through multiplex polymerase chain reaction (PCR) for the gyrB and blaOXA-51-like genes. The isolates were resistant to at least four different classes of antimicrobial agents, namely, aminoglycosides, cephems, carbapenems, and fluoroquinolones. All isolates were metallo-β-lactamase (MβL) and carbapenemase producers. The major component of OEO was found to be carvacrol (71.0%) followed by β-caryophyllene (4.0%), γ-terpinene (4.5%), p-cymene (3,5%), and thymol (3.0%). OEO showed antibacterial effect against all Ab-MDR tested, with minimum inhibitory concentrations (MIC) ranging from 1.75 to 3.50 mg mL-1. Flow cytometry demonstrated that the OEO causes destabilization and rupture of the bacterial cell membrane resulting in apoptosis of A. baumannii cells (p < 0.05). Synergic interaction between OEO and polymyxin B (FICI: 0.18 to 0.37) was observed, using a checkerboard assay. When combined, OEO presented until 16-fold reduction of the polymyxin B MIC. The results presented here indicate that the OEO used alone or in combination with polymyxin B in the treatment of Ab-MDR infections is promising. To the best of our knowledge, this is the first report of OEO and polymyxin B association against Ab-MDR clinical isolates.
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Mancilla-Rojano J, Ochoa SA, Reyes-Grajeda JP, Flores V, Medina-Contreras O, Espinosa-Mazariego K, Parra-Ortega I, Rosa-Zamboni DDL, Castellanos-Cruz MDC, Arellano-Galindo J, Cevallos MA, Hernández-Castro R, Xicohtencatl-Cortes J, Cruz-Córdova A. Molecular Epidemiology of Acinetobacter calcoaceticus- Acinetobacter baumannii Complex Isolated From Children at the Hospital Infantil de México Federico Gómez. Front Microbiol 2020; 11:576673. [PMID: 33178158 PMCID: PMC7593844 DOI: 10.3389/fmicb.2020.576673] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 09/08/2020] [Indexed: 12/13/2022] Open
Abstract
The Acinetobacter calcoaceticus-baumannii (Acb) complex is regarded as a group of phenotypically indistinguishable opportunistic pathogens responsible for mainly causing hospital-acquired pneumonia and bacteremia. The aim of this study was to determine the frequency of isolation of the species that constitute the Acb complex, as well as their susceptibility to antibiotics, and their distribution at the Hospital Infantil de Mexico Federico Gomez (HIMFG). A total of 88 strains previously identified by Vitek 2®, 40 as Acinetobacter baumannii and 48 as Acb complex were isolated from 52 children from 07, January 2015 to 28, September 2017. A. baumannii accounted for 89.77% (79/88) of the strains; Acinetobacter pittii, 6.82% (6/88); and Acinetobacter nosocomialis, 3.40% (3/88). Most strains were recovered mainly from patients in the intensive care unit (ICU) and emergency wards. Blood cultures (BC) provided 44.32% (39/88) of strains. The 13.63% (12/88) of strains were associated with primary bacteremia, 3.4% (3/88) with secondary bacteremia, and 2.3% (2/88) with pneumonia. In addition, 44.32% (39/88) were multidrug-resistant (MDR) strains and, 11.36% (10/88) were extensively drug-resistant (XDR). All strains amplified the blaOXA-51 gene; 51.13% (45/88), the blaOXA-23 gene; 4.54% (4/88), the blaOXA-24 gene; and 2.27% (2/88), the blaOXA-58 gene. Plasmid profiles showed that the strains had 1–6 plasmids. The strains were distributed in 52 pulsotypes, and 24 showed identical restriction patterns, with a correlation coefficient of 1.0. Notably, some strains with the same pulsotype were isolated from different patients, wards, or years, suggesting the persistence of more than one clone. Twenty-seven sequence types (STs) were determined for the strains based on a Pasteur multilocus sequence typing (MLST) scheme using massive sequencing; the most prevalent was ST 156 (27.27%, 24/88). The Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-Cas I-Fb system provided amplification in A. baumannii and A. pittii strains (22.73%, 20/88). This study identified an increased number of MDR strains and the relationship among strains through molecular typing. The data suggest that more than one strain could be causing an infection in some patient. The implementation of molecular epidemiology allowed the characterization of a set of strains and identification of different attributes associated with its distribution in a specific environment.
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Affiliation(s)
- Jetsi Mancilla-Rojano
- Laboratorio de Investigación en Bacteriología Intestinal, Subdirección de Gestión de la Investigación, Hospital Infantil de México Federico Gómez, CDMX, Mexico.,Facultad de Medicina, Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, CDMX, Mexico
| | - Sara A Ochoa
- Laboratorio de Investigación en Bacteriología Intestinal, Subdirección de Gestión de la Investigación, Hospital Infantil de México Federico Gómez, CDMX, Mexico
| | - Juan Pablo Reyes-Grajeda
- Subdirección de Desarrollo de Aplicaciones Clínicas, Instituto Nacional de Medicina Genómica, Ciudad de México, Mexico
| | - Víctor Flores
- Unidad de Genómica Avanzada, Laboratorio Nacional de Genómica para la Biodiversidad, Irapuato, Mexico
| | - Oscar Medina-Contreras
- Unidad de Investigación Epidemiológica en Endocrinología y Nutrición, Hospital Infantil de México Federico Gómez, CDMX, Mexico
| | - Karina Espinosa-Mazariego
- Laboratorio de Investigación en Bacteriología Intestinal, Subdirección de Gestión de la Investigación, Hospital Infantil de México Federico Gómez, CDMX, Mexico
| | - Israel Parra-Ortega
- Departamento de Laboratorio Clínico, Laboratorio Central, Hospital Infantil de México Federico Gómez, CDMX, Mexico
| | | | | | - José Arellano-Galindo
- Unidad de investigación en Enfermedades Infecciosas, Subdirección de Gestión de la Investigación, Hospital Infantil de México Federico Gómez, CDMX, Mexico
| | - Miguel A Cevallos
- Centro de Ciencias Genómicas, Programa de Genómica Evolutiva, Universidad Nacional Autónoma de México, Cuernavaca, Mexico
| | | | - Juan Xicohtencatl-Cortes
- Laboratorio de Investigación en Bacteriología Intestinal, Subdirección de Gestión de la Investigación, Hospital Infantil de México Federico Gómez, CDMX, Mexico
| | - Ariadnna Cruz-Córdova
- Laboratorio de Investigación en Bacteriología Intestinal, Subdirección de Gestión de la Investigación, Hospital Infantil de México Federico Gómez, CDMX, Mexico
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9
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Bello-López E, Rocha-Gracia RDC, Castro-Jaimes S, Cevallos MÁ, Vargas-Cruz M, Verdugo-Yocupicio R, Sáenz Y, Torres C, Gutiérrez-Cázarez Z, Arenas-Hernández MMDLP, Lozano-Zarain P. Antibiotic resistance mechanisms in Acinetobacter spp. strains isolated from patients in a paediatric hospital in Mexico. J Glob Antimicrob Resist 2020; 23:120-129. [PMID: 32916332 DOI: 10.1016/j.jgar.2020.08.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 08/06/2020] [Accepted: 08/18/2020] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVES The aim of this study was to identify Acinetobacter spp. strains from paediatric patients, to determine their genetic relationship, to detect antibiotic resistance genes and to evaluate the role of efflux pumps in antibiotic resistance. METHODS A total of 54 non-duplicate, non-consecutive Acinetobacter spp. isolates were collected from paediatric patients. Their genetic relationship, antibiotic resistance profile, efflux pump activity, antibiotic resistance genes and plasmid profile were determined. RESULTS The isolates were identified as 24 Acinetobacter haemolyticus, 24 Acinetobacter calcoaceticus-baumannii (Acb) complex and 1 strain each of Acinetobacter junii, Acinetobacter radioresistens, Acinetobacter indicus, Acinetobacter lwoffii, Acinetobacter ursingii and Acinetobacter venetianus. The 24 A. haemolyticus were considered genetically unrelated. One strain was resistant to carbapenems, two to cephalosporins, two to ciprofloxacin and sixteen to aminoglycosides. The antibiotic resistance genes blaOXA-214 (29%), blaOXA-215 (4%), blaOXA-264 (8%), blaOXA-265 (29%), blaNDM-1 (4%), aac(6')-Ig (38%) and the novel variants blaOXA-575 (13%), blaTEM-229 (75%), aac(6')-Iga (4%), aac(6')-Igb (13%) and aac(6')-Igc (42%) were detected. Among 24 Acb complex, 5 were multidrug-resistant, carbapenem-resistant strains carrying blaOXA-51 and blaOXA-23; they were genetically related and had the same plasmid profile. Other species were susceptible. In some strains of A. haemolyticus and Acb complex, the role of RND efflux pumps was evidenced by a decrease in the MICs for cefotaxime, amikacin and ciprofloxacin in the presence of an efflux pump inhibitor. CONCLUSIONS This study identified isolates of A. haemolyticus carrying new β-lactamase variants and shows for the first time the contribution of efflux pumps to antibiotic resistance in this species.
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Affiliation(s)
- Elena Bello-López
- Benemérita Universidad Autónoma de Puebla, Instituto de Ciencias, Posgrado en Microbiología, Centro de Investigaciones de Ciencias Microbiológicas, Puebla, Mexico
| | - Rosa Del Carmen Rocha-Gracia
- Benemérita Universidad Autónoma de Puebla, Instituto de Ciencias, Posgrado en Microbiología, Centro de Investigaciones de Ciencias Microbiológicas, Puebla, Mexico
| | - Semiramis Castro-Jaimes
- Programa de Genómica Evolutiva, Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico
| | - Miguel Ángel Cevallos
- Programa de Genómica Evolutiva, Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, Mexico
| | - Michelle Vargas-Cruz
- Benemérita Universidad Autónoma de Puebla, Instituto de Ciencias, Posgrado en Microbiología, Centro de Investigaciones de Ciencias Microbiológicas, Puebla, Mexico
| | - Ricardo Verdugo-Yocupicio
- Benemérita Universidad Autónoma de Puebla, Instituto de Ciencias, Posgrado en Microbiología, Centro de Investigaciones de Ciencias Microbiológicas, Puebla, Mexico
| | - Yolanda Sáenz
- Área de Microbiología Molecular, Centro de Investigación Biomédica de La Rioja (CIBIR), Logroño, Spain
| | - Carmen Torres
- Área Bioquímica y Biología Molecular, Universidad de La Rioja, Logroño, Spain
| | | | | | - Patricia Lozano-Zarain
- Benemérita Universidad Autónoma de Puebla, Instituto de Ciencias, Posgrado en Microbiología, Centro de Investigaciones de Ciencias Microbiológicas, Puebla, Mexico.
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10
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Molecular Characterization of Carbapenem-Resistant Acinetobacter baumannii Associated with Nosocomial Infection in the Pelotas, RS, Brazil. Curr Microbiol 2020; 77:2724-2734. [DOI: 10.1007/s00284-020-02060-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 05/26/2020] [Indexed: 10/24/2022]
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11
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Garza-González E, Franco-Cendejas R, Morfín-Otero R, Echaniz-Aviles G, Rojas-Larios F, Bocanegra-Ibarias P, Flores-Treviño S, Ponce-de-León A, Rodríguez-Noriega E, Alavez-Ramírez N, Mena-Ramirez JP, Rincón-Zuno J, Fong-Camargo MG, Morales-De-la-Peña CT, Huerta-Baltazar CR, López-Jacome LE, Carnalla-Barajas MN, Soto-Noguerón A, Sanchez-Francia D, Moncada-Barrón D, Ortíz-Brizuela E, García-Mendoza L, Newton-Sánchez OA, Choy-Chang EV, Aviles-Benitez LK, Martínez-Miranda R, Feliciano-Guzmán JM, Peña-Lopez CD, Couoh-May CA, López-Gutiérrez E, Gil-Veloz M, Armenta-Rodríguez LC, Manriquez-Reyes M, Gutierrez-Brito M, López-Ovilla I, Adame-Álvarez C, Barajas-Magallón JM, Aguirre-Burciaga E, Coronado-Ramírez AM, Rosales-García AA, Sida-Rodríguez S, Urbina-Rodríguez RE, López-Moreno LI, Juárez-Velázquez GE, Martínez-Villarreal RT, Canizales-Oviedo JL, Cetina-Umaña CM, Perez-Juárez MM, González-Moreno A, Romero-Romero D, Bello-Pazos FD, Aguilar-Orozco G, Barlandas-Rendón NRE, Maldonado-Anicacio JY, Valadez-Quiroz A, Camacho-Ortiz A. The Evolution of Antimicrobial Resistance in Mexico During the Last Decade: Results from the INVIFAR Group. Microb Drug Resist 2020; 26:1372-1382. [PMID: 32027229 DOI: 10.1089/mdr.2019.0354] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Background: Surveillance of antimicrobial resistance (AMR) requires an international approach with national and local strategies. Our aim was to summarize a retrospective 10-year report of antibiotic resistance of gram-positive and gram-negative bacteria in Mexico. Methods: A total of 46 centers from 22 states of Mexico participated. Databases of AMR from January 2009 to December 2018 were included for most species. The 10-year period was divided into five 2-year periods. Results: For Staphylococcus aureus, a decrease in resistance in all specimens was observed for erythromycin and oxacillin (p < 0.0001 for each). For Enterobacter spp., resistance to meropenem increased for urine specimens (p = 0.0042). For Klebsiella spp., increased drug resistance in specimens collected from blood was observed for trimethoprim/sulfamethoxazole, gentamicin, tobramycin (p < 0.0001 for each), meropenem (p = 0.0014), and aztreonam (p = 0.0030). For Acinetobacter baumannii complex, high drug resistance was detected for almost all antibiotics, including carbapenems, except for tobramycin, which showed decreased resistance for urine, respiratory, and blood isolates (p < 0.0001 for each), and for amikacin, which showed a decrease in resistance in urine specimens (p = 0.0002). An increase in resistance to cefepime was found for urine, respiratory, and blood specimens (p < 0.0001 for each). For Pseudomonas aeruginosa, aztreonam resistance increased for isolates recovered from blood (p = 0.0001). Conclusion: This laboratory-based surveillance of antibiotic resistance shows that resistance is increasing for some antibiotics in different bacterial species in Mexico and highlights the need for continuous monitoring of antibiotic resistance.
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Affiliation(s)
- Elvira Garza-González
- Hospital Universitario Dr. José E. González, Universidad Autónoma de Nuevo León, Monterrey, Mexico
| | - Rafael Franco-Cendejas
- Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México, Mexico
| | - Rayo Morfín-Otero
- Hospital Civil de Guadalajara e Instituto de Patología Infecciosa, Universidad de Guadalajara, Guadalajara, Mexico
| | | | | | - Paola Bocanegra-Ibarias
- Hospital Universitario Dr. José E. González, Universidad Autónoma de Nuevo León, Monterrey, Mexico
| | - Samantha Flores-Treviño
- Hospital Universitario Dr. José E. González, Universidad Autónoma de Nuevo León, Monterrey, Mexico
| | - Alfredo Ponce-de-León
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, Mexico
| | - Eduardo Rodríguez-Noriega
- Hospital Civil de Guadalajara e Instituto de Patología Infecciosa, Universidad de Guadalajara, Guadalajara, Mexico
| | - Norma Alavez-Ramírez
- Hospital Regional Tipo B, de Alta Especialidad Bicentenario de La Independencia, Tultitlán de Mariano Escobedo, Mexico
| | - Juan Pablo Mena-Ramirez
- Hospital General de Zona No. 21 IMSS, Centro Universitario de los Altos (CUALTOS), Universidad de Guadalajara, Tepatitlán de Morelos, Mexico
| | - Joaquín Rincón-Zuno
- Hospital Para el Niño de Toluca, Instituto Materno Infantil del Estado De México, Toluca, Mexico
| | | | | | | | - Luis Esau López-Jacome
- Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México, Mexico
| | | | | | | | | | - Edgar Ortíz-Brizuela
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, Mexico
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Jorge Luis Canizales-Oviedo
- Centro Universitario De Salud, Universidad Autónoma de Nuevo León, Laboratorio Pueblo Nuevo, Monterrey, Mexico
| | | | | | | | | | | | | | | | | | | | - Adrián Camacho-Ortiz
- Hospital Universitario Dr. José E. González, Universidad Autónoma de Nuevo León, Monterrey, Mexico
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12
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Alcántar-Curiel MD, Rosales-Reyes R, Jarillo-Quijada MD, Gayosso-Vázquez C, Fernández-Vázquez JL, Toledano-Tableros JE, Giono-Cerezo S, Garza-Villafuerte P, López-Huerta A, Vences-Vences D, Morfín-Otero R, Rodríguez-Noriega E, López-Álvarez MDR, Espinosa-Sotero MDC, Santos-Preciado JI. Carbapenem-Resistant Acinetobacter baumannii in Three Tertiary Care Hospitals in Mexico: Virulence Profiles, Innate Immune Response and Clonal Dissemination. Front Microbiol 2019; 10:2116. [PMID: 31616391 PMCID: PMC6764332 DOI: 10.3389/fmicb.2019.02116] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 08/28/2019] [Indexed: 01/08/2023] Open
Abstract
Acinetobacter baumannii is one of the most important nosocomial pathogens distributed worldwide. Due to its multidrug-resistance and the propensity for the epidemic spread, the World Health Organization includes this bacterium as a priority health issue for development of new antibiotics. The aims of this study were to investigate the antimicrobial resistance profile, the clonal relatedness, the virulence profiles, the innate host immune response and the clonal dissemination of A. baumannii in Hospital Civil de Guadalajara (HCG), Hospital Regional General Ignacio Zaragoza (HRGIZ) and Pediatric ward of the Hospital General de México Eduardo Liceaga (HGM-P). A total of 252 A. baumannii clinical isolates were collected from patients with nosocomial infections in these hospitals between 2015 and 2016. These isolates showed a multidrug-resistant profile and most of them only susceptible to colistin. Furthermore, 83.3 and 36.9% of the isolates carried the blaOXA–24 and blaTEM–1 genes for resistance to carbapenems and β-lactam antibiotics, respectively. The clonal relatedness assessed by pulsed-field gel electrophoresis (PFGE) and by multi-locus sequence typing (MLST) demonstrated a genetic diversity. Remarkably, the ST136, ST208 and ST369 that belonged to the clonal complex CC92 and ST758 and ST1054 to the CC636 clonal complex were identified. The ST136 was a high-risk persistent clone involved in an outbreak at HCG and ST369 were related to the first carbapenem-resistant A. baumannii outbreak in HRGIZ. Up to 58% isolates were able to attach to A549 epithelial cells and 14.5% of them induced >50% of cytotoxicity. A549 cells infected with A. baumannii produced TNFα, IL-6 and IL-1β and the oxygen and nitrogen reactive species that contributes to the development of an inflammatory immune response. Up to 91.3% of clinical isolates were resistant to normal human serum activity. Finally, 98.5% of the clinical isolates were able to form biofilm over polystyrene tubes. In summary, these results demonstrate the increasingly dissemination of multidrug-resistant A. baumannii clones in three hospitals in Mexico carrying diverse bacterial virulence factors that could contribute to establishment of the innate immune response associated to the fatality risks in seriously ill patients.
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Affiliation(s)
- María Dolores Alcántar-Curiel
- Laboratorio de Infectología, Microbiología e Inmunología Clínicas, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Roberto Rosales-Reyes
- Laboratorio de Infectología, Microbiología e Inmunología Clínicas, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Ma Dolores Jarillo-Quijada
- Laboratorio de Infectología, Microbiología e Inmunología Clínicas, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Catalina Gayosso-Vázquez
- Laboratorio de Infectología, Microbiología e Inmunología Clínicas, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - José Luis Fernández-Vázquez
- Laboratorio de Infectología, Microbiología e Inmunología Clínicas, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - José Eduardo Toledano-Tableros
- Laboratorio de Infectología, Microbiología e Inmunología Clínicas, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico.,Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Silvia Giono-Cerezo
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Paola Garza-Villafuerte
- Laboratorio de Infectología, Microbiología e Inmunología Clínicas, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Arath López-Huerta
- Laboratorio de Infectología, Microbiología e Inmunología Clínicas, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Daniela Vences-Vences
- Laboratorio de Infectología, Microbiología e Inmunología Clínicas, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Rayo Morfín-Otero
- Hospital Civil de Guadalajara Fray Antonio Alcalde, Instituto de Patología Infecciosa y Experimental, UDG, Guadalajara, Mexico
| | - Eduardo Rodríguez-Noriega
- Hospital Civil de Guadalajara Fray Antonio Alcalde, Instituto de Patología Infecciosa y Experimental, UDG, Guadalajara, Mexico
| | | | | | - José Ignacio Santos-Preciado
- Laboratorio de Infectología, Microbiología e Inmunología Clínicas, Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
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13
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Azevedo FKSFD, Dutra V, Nakazato L, Pepato MA, Sousa ATHID, Azevedo CCSFD, Souto FJD. New sequence types of Acinetobacter baumannii in two emergency hospitals in the Central-West region of Brazil. Rev Soc Bras Med Trop 2019; 52:e20190077. [PMID: 31340367 DOI: 10.1590/0037-8682-0077-2019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
| | - Valéria Dutra
- Hospital Veterinário e Laboratório de Microbiologia Veterinária e Biologia Molecular, Universidade Federal de Mato Grosso, Cuiabá, MT, Brasil
| | - Luciano Nakazato
- Hospital Veterinário e Laboratório de Microbiologia Veterinária e Biologia Molecular, Universidade Federal de Mato Grosso, Cuiabá, MT, Brasil
| | - Marco Andrey Pepato
- Departamento de Clínica Médica, Universidade Federal de Mato Grosso, Cuiabá, MT, Brasil
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14
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Garza-González E, Morfín-Otero R, Mendoza-Olazarán S, Bocanegra-Ibarias P, Flores-Treviño S, Rodríguez-Noriega E, Ponce-de-León A, Sanchez-Francia D, Franco-Cendejas R, Arroyo-Escalante S, Velázquez-Acosta C, Rojas-Larios F, Quintanilla LJ, Maldonado-Anicacio JY, Martínez-Miranda R, Ostos-Cantú HL, Gomez-Choel A, Jaime-Sanchez JL, Avilés-Benítez LK, Feliciano-Guzmán JM, Peña-López CD, Couoh-May CA, Molina-Jaimes A, Vázquez -Narvaez EG, Rincón-Zuno J, Rivera-Garay R, Galindo-Espinoza A, Martínez-Ramirez A, Mora JP, Corte- Rojas RE, López-Ovilla I, Monroy-Colin VA, Barajas-Magallón JM, Morales-De-la-Peña CT, Aguirre-Burciaga E, Coronado-Ramírez M, Rosales-García AA, Ayala-Tarín MDJ, Sida-Rodríguez S, Pérez-Vega BA, Navarro-Rodríguez A, Juárez-Velázquez GE, Cetina-Umaña CM, Mena-Ramírez JP, Canizales-Oviedo J, Moreno-Méndez MI, Romero-Romero D, Arévalo-Mejía A, Cobos-Canul DI, Aguilar-Orozco G, Silva-Sánchez J, Camacho-Ortiz A. A snapshot of antimicrobial resistance in Mexico. Results from 47 centers from 20 states during a six-month period. PLoS One 2019; 14:e0209865. [PMID: 30913243 PMCID: PMC6435111 DOI: 10.1371/journal.pone.0209865] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 12/12/2018] [Indexed: 01/22/2023] Open
Abstract
Aim We aimed to assess the resistance rates of antimicrobial-resistant, in bacterial pathogens of epidemiological importance in 47 Mexican centers. Material and methods In this retrospective study, we included a stratified sample of 47 centers, covering 20 Mexican states. Selected isolates considered as potential causatives of disease collected over a 6-month period were included. Laboratories employed their usual methods to perform microbiological studies. The results were deposited into a database and analyzed with the WHONET 5.6 software. Results In this 6-month study, a total of 22,943 strains were included. Regarding Gram-negatives, carbapenem resistance was detected in ≤ 3% in Escherichia coli, 12.5% in Klebsiella sp. and Enterobacter sp., and up to 40% in Pseudomonas aeruginosa; in the latter, the resistance rate for piperacillin-tazobactam (TZP) was as high as 19.1%. In Acinetobacter sp., resistance rates for cefepime, ciprofloxacin, meropenem, and TZP were higher than 50%. Regarding Gram-positives, methicillin resistance in Staphylococcus aureus (MRSA) was as high as 21.4%, and vancomycin (VAN) resistance reached up to 21% in Enterococcus faecium. Acinetobacter sp. presented the highest multidrug resistance (53%) followed by Klebsiella sp. (22.6%) and E. coli (19.4%). Conclusion The multidrug resistance of Acinetobacter sp., Klebsiella sp. and E. coli and the carbapenem resistance in specific groups of enterobacteria deserve special attention in Mexico. Vancomycin-resistant enterococci (VRE) and MRSA are common in our hospitals. Our results present valuable information for the implementation of measures to control drug resistance.
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Affiliation(s)
- Elvira Garza-González
- Hospital Universitario Dr. José Eleuterio González, Monterrey, Nuevo León, Mexico
- * E-mail:
| | - Rayo Morfín-Otero
- Hospital Civil de Guadalajara e Instituto de Patología Infecciosa, Guadalajara, Jalisco, Mexico
| | | | | | | | | | - Alfredo Ponce-de-León
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, Mexico
| | | | - Rafael Franco-Cendejas
- Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Ciudad de México, Mexico
| | | | | | - Fabián Rojas-Larios
- Hospital Regional Universitario de los Servicios de Salud del Estado de Colima y Facultad de Medicina, Universidad de Colima, Colima, Colima, Mexico
| | | | | | - Rafael Martínez-Miranda
- Hospital General de Mexicali/Facultad de Medicina Mexicali UABC, Mexicali, Baja California, Mexico
| | | | | | | | | | | | | | - Carlos A. Couoh-May
- Hospital General de Mérida Yucatán “Dr. Agustín O ‘Horan”, Mérida, Yucatán, Mexico
| | - Aaron Molina-Jaimes
- Hospital Regional de Alta Especialidad Bicentenario de la Independencia, Tultitlán de Mariano Escobedo, Estado de México, Mexico
| | | | | | - Raúl Rivera-Garay
- Hospital Regional de Alta Especialidad del Bajío, León, Guanajuato, Mexico
| | | | | | - Javier P. Mora
- Hospital de Alta Especialidad de Veracruz, Veracruz, Veracruz, Mexico
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Juan P. Mena-Ramírez
- Hospital General de zona 21 Tepatitlán de Morelos, Tepatitlán de Morelos, Jalisco, Mexico
| | - Jorge Canizales-Oviedo
- Centro Universitario de Salud, UANL Pueblo Nuevo, Monterrey, Nuevo León, Mexico
- Centro Universitario de Salud, UANL Vicente Guerrero, Monterrey, Nuevo León, Mexico
| | | | - Daniel Romero-Romero
- Laboratorio de Análisis Bioquímico Clínicos "Louis Pasteur", Toluca, Estado de México, Mexico
| | | | | | | | | | - Adrián Camacho-Ortiz
- Hospital Universitario Dr. José Eleuterio González, Monterrey, Nuevo León, Mexico
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15
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Alcántar-Curiel MD, Fernández-Vázquez JL, Toledano-Tableros JE, Gayosso-Vázquez C, Jarillo-Quijada MD, López-Álvarez MDR, Giono-Cerezo S, Santos-Preciado JI. Emergence of IncFIA Plasmid-Carrying blaNDM-1 Among Klebsiella pneumoniae and Enterobacter cloacae Isolates in a Tertiary Referral Hospital in Mexico. Microb Drug Resist 2019; 25:830-838. [PMID: 30835632 DOI: 10.1089/mdr.2018.0306] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The emergence of New Delhi metallo-β-lactamase 1 on carbapenemase-producing bacteria has raised a major worldwide public health concern. This study reports the dissemination of blaNDM-1 in carbapenem-resistant isolates that caused nosocomial infections in a tertiary hospital in Mexico City. Seven Enterobacter cloacae and three Klebsiella pneumoniae nosocomial isolates from the same time period harbored the blaNDM-1 gene. The resistance phenotype and the blaNDM-1 gene were transferred through conjugative plasmids belonging to the incompatibility group IncFIA of 85, 101, and 195 kb in E. cloacae and 95 and 101 kb in K. pneumoniae isolates. Restriction fragment length polymorphism analysis showed that blaNDM-1 was carried in similar plasmids with molecular sizes of 101 and 85 kb, each one in three isolates of E. cloacae and one of 101 kb on two isolates of K. pneumoniae. During a 9-month period, six of the seven isolates of E. cloacae analyzed harbored blaNDM-1 and belonged to clone E1. Similarly, over a 5-month period, two of the three K. pneumoniae isolates that harbored blaNDM-1 belonged to clone K1. These results demonstrate the horizontal transfer of blaNDM-1 between different bacterial species, dissemination of clones with high levels of resistance to carbapenems, and underscore the need for heightened measures to control their further spread.
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Affiliation(s)
- María Dolores Alcántar-Curiel
- 1 Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - José Luis Fernández-Vázquez
- 1 Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - José Eduardo Toledano-Tableros
- 2 Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, México
| | - Catalina Gayosso-Vázquez
- 1 Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Ma Dolores Jarillo-Quijada
- 1 Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
| | | | - Silvia Giono-Cerezo
- 2 Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, México
| | - José Ignacio Santos-Preciado
- 1 Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Ciudad de México, México
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16
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de Azevedo FKSF, Dutra V, Nakazato L, Mello CM, Pepato MA, de Sousa ATHI, Takahara DT, Hahn RC, Souto FJD. Molecular epidemiology of multidrug-resistant Acinetobacter baumannii infection in two hospitals in Central Brazil: the role of ST730 and ST162 in clinical outcomes. J Med Microbiol 2018; 68:31-40. [PMID: 30516469 DOI: 10.1099/jmm.0.000853] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
PURPOSE Acinetobacter baumannii is a major cause of multidrug-resistant nosocomial infections. The characteristics of A. baumannii at two hospitals in a city in Central Brazil are described by analysing the phenotypes and molecular profiles of isolates recovered from 87 patients. METHODOLOGY The isolates were identified and their antimicrobial susceptibility was evaluated using the the Bact/Alert 3D and Vitek2 methods. Patients' clinical data were obtained from medical files. Genes associated with resistance to carbapenems were analysed by multilocus sequence typing, clinical and bacteriological variables were analysed by descriptive statistics, and logistic models were generated to adjust the associations. RESULTS Sixty-four (73.5 %) out of 87 A. baumannii isolates analysed were from patients in intensive care. The mortality rate was 43.7 %. Eighty (91.9 %) isolates were resistant to imipenem and 86 were susceptible to colistin (98.8 %). The blaOXA-23 gene (78.2 %) and its upstream insertion ISAba1 (55.2 %) were predominant, followed by blaOXA-24 (55.2 %) and blaOXA-143 (28.7 %). The blaOXA-23 gene and ISAba1 were independently associated with resistance to imipenem (P<0.05). There were 13 different sequence types (STs) among the 35 isolates. ST1 (nine; 25.7 %), ST162 (eight; 22.8 %) and ST730 (six; 17.1 %) were the most common, and four new STs were identified. The isolates were grouped into five clonal complexes (CC1, CC15, CC79, CC108 and CC162) plus a singleton using eburst. CONCLUSION Respiratory infection, age >60 years and use of noradrenaline were factors associated with fatality. ST730 (CC79) was associated with higher mortality (P<0.05) and ST162 (CC162) was associated with increased survival probability (P<0.05).
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Affiliation(s)
| | - Valéria Dutra
- 2Laboratory of Veterinary Microbiology and Molecular Biology, College of Veterinary Medicine, Federal University of Mato Grosso, Mato Grosso, Brazil
| | - Luciano Nakazato
- 2Laboratory of Veterinary Microbiology and Molecular Biology, College of Veterinary Medicine, Federal University of Mato Grosso, Mato Grosso, Brazil
| | - Camila Martines Mello
- 1College of Medicine, Júlio Muller Hospital University, Federal University of Mato Grosso, Mato Grosso State, Brazil
| | - Marco Andrey Pepato
- 1College of Medicine, Júlio Muller Hospital University, Federal University of Mato Grosso, Mato Grosso State, Brazil
| | | | - Doracilde Terume Takahara
- 1College of Medicine, Júlio Muller Hospital University, Federal University of Mato Grosso, Mato Grosso State, Brazil
| | - Rosane Christine Hahn
- 1College of Medicine, Júlio Muller Hospital University, Federal University of Mato Grosso, Mato Grosso State, Brazil
| | - Francisco José Dutra Souto
- 1College of Medicine, Júlio Muller Hospital University, Federal University of Mato Grosso, Mato Grosso State, Brazil
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Ponce-de-Leon A, Rodríguez-Noriega E, Morfín-Otero R, Cornejo-Juárez DP, Tinoco JC, Martínez-Gamboa A, Gaona-Tapia CJ, Guerrero-Almeida ML, Martin-Onraët A, Vallejo Cervantes JL, Sifuentes-Osornio J. Antimicrobial susceptibility of gram-negative bacilli isolated from intra-abdominal and urinary-tract infections in Mexico from 2009 to 2015: Results from the Study for Monitoring Antimicrobial Resistance Trends (SMART). PLoS One 2018; 13:e0198621. [PMID: 29927958 PMCID: PMC6013120 DOI: 10.1371/journal.pone.0198621] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 05/22/2018] [Indexed: 11/29/2022] Open
Abstract
Antimicrobial resistance is an increasing worldwide concern, which poses unique challenges for the effective prevention and treatment of several infections, especially the ones triggered by organisms producing extended-spectrum β-lactamases (ESBL). Here, we present the surveillance results of the Study for Monitoring Antimicrobial Resistance Trends (SMART) of Gram-negative bacilli isolated from intra-abdominal infections (IAI, n = 1,235) and urinary-tract infections (UTI, n = 2,682), collected in Mexico from 2009 to 2015. Susceptibility and ESBL status were determined according to the Clinical and Laboratory Standards Institute (CLSI) broth microdilution method. Both E. coli (57%) and K. pneumoniae (12%) were the most frequently reported organisms, as well as the ones with the highest prevalence of ESBL-producing isolates (54% and 39%, respectively). The overall prevalence of ESBL-producing organisms was higher in nosocomial infections than in community-acquired infections (21% vs. 27%). The ESBL rates were 36% for IAI (953/2,682) and 37% for UTI (461/1,235). In addition, ertapenem, imipenem and amikacin were the antibiotics that mostly preserved bacterial susceptibility. Our results show consistency with global trends, although higher than the rates observed in Latin America.
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Affiliation(s)
- Alfredo Ponce-de-Leon
- Clinical Microbiology Laboratory, Salvador Zubirán National Institute of Medical Sciences and Nutrition, Mexico City, Mexico
- Department of Infectious Diseases, Salvador Zubirán National Institute of Medical Sciences and Nutrition, Mexico City, Mexico
| | - Eduardo Rodríguez-Noriega
- Hospital Civil de Guadalajara, Fray Antonio Alcalde, Guadalajara, Jalisco, Mexico
- Instituto de Patología Infecciosa y Experimental, Centro Universitario Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - Rayo Morfín-Otero
- Hospital Civil de Guadalajara, Fray Antonio Alcalde, Guadalajara, Jalisco, Mexico
- Instituto de Patología Infecciosa y Experimental, Centro Universitario Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | | | | | - Areli Martínez-Gamboa
- Clinical Microbiology Laboratory, Salvador Zubirán National Institute of Medical Sciences and Nutrition, Mexico City, Mexico
| | - Carmen J. Gaona-Tapia
- Clinical Microbiology Laboratory, Salvador Zubirán National Institute of Medical Sciences and Nutrition, Mexico City, Mexico
| | - M. Lourdes Guerrero-Almeida
- Department of Infectious Diseases, Salvador Zubirán National Institute of Medical Sciences and Nutrition, Mexico City, Mexico
| | | | | | - José Sifuentes-Osornio
- Clinical Microbiology Laboratory, Salvador Zubirán National Institute of Medical Sciences and Nutrition, Mexico City, Mexico
- Department of Infectious Diseases, Salvador Zubirán National Institute of Medical Sciences and Nutrition, Mexico City, Mexico
- * E-mail:
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18
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Rodríguez CH, Nastro M, Famiglietti A. Carbapenemases in Acinetobacter baumannii. Review of their dissemination in Latin America. Rev Argent Microbiol 2018; 50:327-333. [PMID: 29548732 DOI: 10.1016/j.ram.2017.10.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 09/08/2017] [Accepted: 10/27/2017] [Indexed: 11/29/2022] Open
Abstract
Carbapenem resistance in gram-negative bacteria by production of carbapenemases is one of the most challenging issues regarding healthcare worldwide. We review the epidemiology and prevalence of carbapenemases in carbapenem-resistant Acinetobacter baumannii isolates from Latin American countries. High resistance rates to antimicrobial agents, particularly to carbapenems, are observed in this region. OXA-23 is the most widely disseminated class D-carbapenemase; it is present in all the countries of the region and is frequently associated to endemic clones CC113/CC79, CC104/CC15, CC110/ST25 and CC109/CC1. The emergence of OXA-72 and NDM-1 represents a novel finding which is observed simultaneously and without clonal relatedness in different countries, some of which are distant from one another, whereas OXA-143 is only present in Brazil. Further collaborative intraregional studies would provide a better understanding of these issues in most of the countries and thus, policies to control the spread of these isolates could be implemented.
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Affiliation(s)
- Carlos Hernán Rodríguez
- Hospital de Clínicas José de San Martín, Departamento de Bioquímica Clínica, Córdoba 2351, 1120 Buenos Aires, Argentina.
| | - Marcela Nastro
- Hospital de Clínicas José de San Martín, Departamento de Bioquímica Clínica, Córdoba 2351, 1120 Buenos Aires, Argentina
| | - Angela Famiglietti
- Hospital de Clínicas José de San Martín, Departamento de Bioquímica Clínica, Córdoba 2351, 1120 Buenos Aires, Argentina
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19
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Antimicrobial Resistant Determination and Prokaryotic Expression of smpA Gene of Acinetobacter baumannii Isolated from Admitted Patients. Jundishapur J Microbiol 2017. [DOI: 10.5812/jjm.59370] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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20
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Graña-Miraglia L, Lozano LF, Velázquez C, Volkow-Fernández P, Pérez-Oseguera Á, Cevallos MA, Castillo-Ramírez S. Rapid Gene Turnover as a Significant Source of Genetic Variation in a Recently Seeded Population of a Healthcare-Associated Pathogen. Front Microbiol 2017; 8:1817. [PMID: 28979253 PMCID: PMC5611417 DOI: 10.3389/fmicb.2017.01817] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 09/06/2017] [Indexed: 12/11/2022] Open
Abstract
Genome sequencing has been useful to gain an understanding of bacterial evolution. It has been used for studying the phylogeography and/or the impact of mutation and recombination on bacterial populations. However, it has rarely been used to study gene turnover at microevolutionary scales. Here, we sequenced Mexican strains of the human pathogen Acinetobacter baumannii sampled from the same locale over a 3 year period to obtain insights into the microevolutionary dynamics of gene content variability. We found that the Mexican A. baumannii population was recently founded and has been emerging due to a rapid clonal expansion. Furthermore, we noticed that on average the Mexican strains differed from each other by over 300 genes and, notably, this gene content variation has accrued more frequently and faster than the accumulation of mutations. Moreover, due to its rapid pace, gene content variation reflects the phylogeny only at very short periods of time. Additionally, we found that the external branches of the phylogeny had almost 100 more genes than the internal branches. All in all, these results show that rapid gene turnover has been of paramount importance in producing genetic variation within this population and demonstrate the utility of genome sequencing to study alternative forms of genetic variation.
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Affiliation(s)
- Lucía Graña-Miraglia
- Programa de Genómica Evolutiva, Centro de Ciencias Génomicas, Universidad Nacional Autónoma de MéxicoCuernavaca, Mexico
| | - Luis F Lozano
- Programa de Genómica Evolutiva, Centro de Ciencias Génomicas, Universidad Nacional Autónoma de MéxicoCuernavaca, Mexico
| | - Consuelo Velázquez
- Departamento de Enfermedades Infecciosas, Instituto Nacional de CancerologíaMexico, Mexico
| | | | - Ángeles Pérez-Oseguera
- Programa de Genómica Evolutiva, Centro de Ciencias Génomicas, Universidad Nacional Autónoma de MéxicoCuernavaca, Mexico
| | - Miguel A Cevallos
- Programa de Genómica Evolutiva, Centro de Ciencias Génomicas, Universidad Nacional Autónoma de MéxicoCuernavaca, Mexico
| | - Santiago Castillo-Ramírez
- Programa de Genómica Evolutiva, Centro de Ciencias Génomicas, Universidad Nacional Autónoma de MéxicoCuernavaca, Mexico
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21
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Rosales-Reyes R, Gayosso-Vázquez C, Fernández-Vázquez JL, Jarillo-Quijada MD, Rivera-Benítez C, Santos-Preciado JI, Alcántar-Curiel MD. Virulence profiles and innate immune responses against highly lethal, multidrug-resistant nosocomial isolates of Acinetobacter baumannii from a tertiary care hospital in Mexico. PLoS One 2017; 12:e0182899. [PMID: 28797068 PMCID: PMC5552319 DOI: 10.1371/journal.pone.0182899] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 07/26/2017] [Indexed: 11/18/2022] Open
Abstract
Virulence profiles and innate immune responses were studied in Acinetobacter baumannii from nosocomial infections collected over one year in a tertiary care hospital in Mexico. A. baumannii were identified by VITEK 2 System followed by susceptibility tests. Carbapenemase genes, active efflux mechanism to imipenem and meropenem and outer membrane proteins profile were analyzed to evaluate their role on the activity of carbapenem resistance. All isolates were genotyped by pulsed field gel electrophoresis. The ability to form biofilm was determined on a polystyrene surface. The resistance to complement was determined with a pooled human normal serum and TNFα release by infected macrophages was determined by ELISA. The 112 isolates from this study were associated with a 52% of mortality. All were resistance to β-lactams, fluoroquinolones, and trimethroprim-sulfamethoxal, 96 and 90% were resistant to meropenem and imipenem, respectively, but with high susceptibility to polymyxin B, colistin and tigecyclin. Isolates were classified in 11 different clones. Most isolates, 88% (99/112), were metallo-β-lactamases and carbapenemases producers, associated in 95% with the presence of blaOXA-72 gene. Only 4/99 and 1/99 of the carbapenem-resistant isolates were related to efflux mechanism to meropenem or imipenem resistance, respectively. The loss of expression of 22, 29, and/or 33-36-kDa proteins was detected in 8/11 of the clinical isolates with resistance to carbapenem. More than 96% (108/112) of the isolates were high producers of biofilms on biotic surfaces. Finally, all isolates showed variable resistance to normal human serum activity and were high inductors of TNFα release by macrophages. In summary, these results suggest that multidrug-resistant A. baumannii can persist in the hospital environment through its ability to form biofilms. The high mortality observed was due to their ability to survive normal human serum activity and capability to induce potent inflammatory immune response making this nosocomial pathogen a serious threat to hospitalized patients.
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Affiliation(s)
- Roberto Rosales-Reyes
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México. Ciudad de México, México
- * E-mail: (MDAC); (RRR)
| | - Catalina Gayosso-Vázquez
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México. Ciudad de México, México
| | - José Luis Fernández-Vázquez
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México. Ciudad de México, México
| | - Ma Dolores Jarillo-Quijada
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México. Ciudad de México, México
| | | | - José Ignacio Santos-Preciado
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México. Ciudad de México, México
| | - María Dolores Alcántar-Curiel
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México. Ciudad de México, México
- * E-mail: (MDAC); (RRR)
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22
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Saavedra SY, Prada-Cardozo D, Rincón V, Pérez-Cardona H, Hidalgo AM, González MN, Reguero MT, Valenzuela de Silva EM, Mantilla JR, Falquet L, Barreto-Hernández E, Duarte C. Whole-Genome Sequence of a Colombian Acinetobacter baumannii Strain, a Coproducer of OXA-72 and OXA-255-Like Carbapenemases. GENOME ANNOUNCEMENTS 2017; 5:e01558-16. [PMID: 28209815 PMCID: PMC5313607 DOI: 10.1128/genomea.01558-16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 12/16/2016] [Indexed: 11/20/2022]
Abstract
Colombian Acinetobacter baumannii strain ST920 was isolated from the sputum of a 68-year-old male patient. This isolate possessed blaOXA-72 and blaOXA-255-like genes. The assembled genome contained 4,104,098 pb and 38.79% G+C content. This is the first case reported of the coproduction (blaOXA-72 and blaOXA-255-like) of carbapenem-hydrolyzing class D β-lactamases (CHDLs) in Acinetobacter baumannii.
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Affiliation(s)
| | - Diego Prada-Cardozo
- Bioinformatics Group, Biotechnology Institute, Universidad Nacional de Colombia, Bogotá, Colombia
- Molecular Epidemiology Laboratory, Biotechnology Institute, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Verónica Rincón
- Bioinformatics Group, Biotechnology Institute, Universidad Nacional de Colombia, Bogotá, Colombia
- Molecular Epidemiology Laboratory, Biotechnology Institute, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Hermes Pérez-Cardona
- Bioinformatics Group, Biotechnology Institute, Universidad Nacional de Colombia, Bogotá, Colombia
| | | | | | - María T Reguero
- Bioinformatics Group, Biotechnology Institute, Universidad Nacional de Colombia, Bogotá, Colombia
- Molecular Epidemiology Laboratory, Biotechnology Institute, Universidad Nacional de Colombia, Bogotá, Colombia
| | | | - José R Mantilla
- Molecular Epidemiology Laboratory, Biotechnology Institute, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Laurent Falquet
- Biochemistry/Bioinformatics Unit, Université de Fribourg, Fribourg-Suiza, Switzerland
| | - Emiliano Barreto-Hernández
- Bioinformatics Group, Biotechnology Institute, Universidad Nacional de Colombia, Bogotá, Colombia
- Molecular Epidemiology Laboratory, Biotechnology Institute, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Carolina Duarte
- Microbiology Group, National Institute of Health, Bogotá, Colombia
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Escandón-Vargas K, Reyes S, Gutiérrez S, Villegas MV. The epidemiology of carbapenemases in Latin America and the Caribbean. Expert Rev Anti Infect Ther 2016; 15:277-297. [PMID: 27915487 DOI: 10.1080/14787210.2017.1268918] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
INTRODUCTION Enterobacteriaceae, Pseudomonas spp., and Acinetobacter spp. infections are major causes of morbidity and mortality, especially due to the emergence and spread of β-lactamases. Carbapenemases, which are β-lactamases with the capacity to hydrolyze or inactivate carbapenems, have become a serious concern as they have the largest hydrolytic spectrum and therefore limit the utility of most β-lactam antibiotics. Areas covered: Here, we present an update of the current status of carbapenemases in Latin America and the Caribbean. Expert commentary: The increased frequency of reports on carbapenemases in Latin America and the Caribbean shows that they have successfully spread and have even become endemic in some countries. Countries such as Brazil, Colombia, Argentina, and Mexico account for the majority of these reports. Early suspicion and detection along with implementation of antimicrobial stewardship programs in all healthcare settings are crucial for the control and prevention of carbapenemase-producing bacteria.
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Affiliation(s)
- Kevin Escandón-Vargas
- a Bacterial Resistance and Hospital Epidemiology Unit , International Center for Medical Research and Training (CIDEIM) , Cali , Colombia
| | - Sergio Reyes
- a Bacterial Resistance and Hospital Epidemiology Unit , International Center for Medical Research and Training (CIDEIM) , Cali , Colombia
| | - Sergio Gutiérrez
- a Bacterial Resistance and Hospital Epidemiology Unit , International Center for Medical Research and Training (CIDEIM) , Cali , Colombia
| | - María Virginia Villegas
- a Bacterial Resistance and Hospital Epidemiology Unit , International Center for Medical Research and Training (CIDEIM) , Cali , Colombia.,b Molecular Genetics and Antimicrobial Resistance Unit, International Center for Microbial Genomics , Universidad El Bosque , Bogotá , Colombia
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24
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Rodríguez CH, Balderrama Yarhui N, Nastro M, Nuñez Quezada T, Castro Cañarte G, Magne Ventura R, Ugarte Cuba T, Valenzuela N, Roach F, Mota MI, Burger N, Velázquez Aguayo G, Ortellado-Canese J, Bruni G, Pandolfo C, Bastyas N, Famiglietti A. Molecular epidemiology of carbapenem-resistant Acinetobacter baumannii in South America. J Med Microbiol 2016; 65:1088-1091. [DOI: 10.1099/jmm.0.000328] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Carlos Hernán Rodríguez
- Laboratorio de Bacteriología, Hospital de Clínicas José de San Martín, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Norah Balderrama Yarhui
- Laboratorio de Bacteriología, Hospital de Clínicas José de San Martín, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Marcela Nastro
- Laboratorio de Bacteriología, Hospital de Clínicas José de San Martín, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | | | | | | | | | | | - Freddy Roach
- Hospital ‘Dr Leonardo Guzmán’, Antofagasta, Chile
| | - María Inés Mota
- Cooperativa Asistencial Médica del Este de Colonia, Colonia, Rosario, Uruguay
| | - Noelia Burger
- Cooperativa Asistencial Médica del Este de Colonia, Colonia, Rosario, Uruguay
| | | | | | - Geni Bruni
- Hospital Nuestro Señora Del Carmen (OSEP), Mendoza, Argentina
| | | | - Nadya Bastyas
- Hospital Nuestro Señora Del Carmen (OSEP), Mendoza, Argentina
| | - Angela Famiglietti
- Laboratorio de Bacteriología, Hospital de Clínicas José de San Martín, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
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25
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Immunization with a 22-kDa outer membrane protein elicits protective immunity to multidrug-resistant Acinetobacter baumannii. Sci Rep 2016; 6:20724. [PMID: 26853590 PMCID: PMC4745112 DOI: 10.1038/srep20724] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 01/11/2016] [Indexed: 11/28/2022] Open
Abstract
A. baumannii infections are becoming more and more serious health issues with rapid emerging of multidrug and extremely drug resistant strains, and therefore, there is an urgent need for the development of nonantibiotic-based intervention strategies. This study aimed at identifying whether an outer membrane protein with molecular weight of about 22 kDa (Omp22) holds the potentials to be an efficient vaccine candidate and combat A. baumannii infection. Omp22 which has a molecule length of 217 amino acids kept more than 95% conservation in totally 851 reported A. baumannii strains. Recombinant Omp22 efficiently elicited high titers of specific IgG in mice. Both active and passive immunizations of Omp22 increased the survival rates of mice, suppressed the bacterial burdens in the organs and peripheral blood, and reduced the levels of serum inflammatory cytokines and chemokines. Opsonophagocytosis assays showed in vitro that Omp22 antiserum had highly efficient bactericidal activities on clonally distinct clinical A. baumannii isolates, which were partly complements-dependent and opsonophagocytic killing effects. Additionally, administration with as high as 500 μg of Omp22 didn’t cause obvious pathological changes in mice. In conclusion, Omp22 is a novel conserved and probably safe antigen for developing effective vaccines or antisera to control A. baumannii infections.
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Rosales-Reyes R, Alcántar-Curiel MD, Jarillo-Quijada MD, Gayosso-Vázquez C, Morfin-Otero MDR, Rodríguez-Noriega E, Santos-Preciado JI. Biofilm Formation and Susceptibility to Polymyxin B by a Highly Prevalent Clone of Multidrug-Resistant Acinetobacter baumannii from a Mexican Tertiary Care Hospital. Chemotherapy 2015; 61:8-14. [PMID: 26536333 DOI: 10.1159/000440605] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 08/24/2015] [Indexed: 11/19/2022]
Abstract
BACKGROUND Acinetobacter baumannii has emerged as a major cause of hospital-associated infections with increased morbidity and mortality among those affected. METHODS A total of 85 isolates of a highly prevalent multidrug-resistant clone, identified during the period 2007-2011, were analyzed for biofilm formation on a polystyrene surface. The minimal inhibitory concentration was determined by the Sensititre System, the agar disk diffusion method and then read by means of the BIOMIC system and serial dilutions on Müller-Hinton agar. RESULTS In this study, covering a period of 5 years (2007-2011), we demonstrate that a particular clone emerged as the most prevalent, with an associated lethality of 28.2%. We demonstrate that 92.9% of strains corresponding to this clone are biofilm producers. Our results also demonstrate that all isolates were 100% susceptible to polymyxin B. CONCLUSION Our study suggests that the high prevalence and lethality of this multidrug-resistant clone of A. baumannii and its persistence over close to 5 years in a Mexican tertiary hospital environment can be explained in part by the ability of these clinical isolates of A. baumannii to form biofilms.
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Sun Y, Li M, Chen L, Chen H, Yu X, Ye J, Zhang Y, Ma C, Zhou T. Prevalence and molecular characterization of carbapenemase-producing gram-negative bacteria from a university hospital in China. Infect Dis (Lond) 2015; 48:138-46. [DOI: 10.3109/23744235.2015.1094822] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Affiliation(s)
- Yao Sun
- From the Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou and
| | - Meimei Li
- From the Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou and
| | - Lijiang Chen
- From the Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou and
| | - Huale Chen
- From the Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou and
| | - Xiao Yu
- From the School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Jianzhong Ye
- From the Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou and
| | - Yapei Zhang
- From the Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou and
| | - Chuanling Ma
- From the Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou and
| | - Tieli Zhou
- From the Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou and
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