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Pitart C, Piquet M, Burgwinkel T, Del Pino RA, Rubio M, Aguilar M, Gea SD, Pulgarín A, Campo I, Torralbo B, Parejo R, Valls S, Fortes I, Santana G, Rubio E, Vilella A, Río AD, Martínez JA, Miró E, Navarro F, Espasa M, Casals-Pascual C, Vila J, Higgins PG, Roca I. Early identification of the nosocomial spread of vancomycin-resistant Enterococcus faecium by Fourier-transform infrared spectroscopy and performance comparison with PFGE and WGS. Emerg Microbes Infect 2024:2392659. [PMID: 39137261 DOI: 10.1080/22221751.2024.2392659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2024]
Abstract
Early detection of disseminating vancomycin-resistant Enterococcus faecium (VREfm) in ICU wards is crucial for outbreak identification and the implementation of prompt infection control measures. Genotypic methods like pulsed-field gel electrophoresis (PFGE) and whole-genome sequencing (WGS) are costly and time-consuming, hindering rapid response due to batch dependency. Fourier-transform infrared spectroscopy (FT-IR) offers potential for real-time outbreak detection and reliable strain typing. We utilized FT-IR to identify clonal VREfm dissemination and compared its performance to PFGE and WGS. Between February through October 2023, an unusually high number of VREfm were recovered at a tertiary hospital in Barcelona. Isolates were examined for antimicrobial susceptibility, carriage of vanA/vanB genes and clonality was also studied using FT-IR, PFGE, and WGS. Routine FT-IR inspections revealed recurring VREfm clustering during the outbreak's initial weeks. In total, 104 isolates were recovered from 75 patients and from multiple wards. However, only one isolate was recovered from an environmental sample, suggesting the absence of environmental reservoirs. An ST80 vancomycin-resistant (vanA) E. faecium strain was the main strain responsible for the outbreak, although a few additional VREfm strains were also identified, all belonging to CC17. PFGE and cgMLST (WGS) yielded identical clustering results to FT-IR, and WGS confirmed vanA/vanB gene carriage in all VREfm isolates. Infection control measures led to a rapid decline in VREfm isolates, with no isolates detected in November. FT-IR spectroscopy offers rapid turnaround times, sensitivity, and reproducibility, comparable to standard typing methods. It proved as an effective tool for monitoring VREfm dissemination and early outbreak detection.
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Affiliation(s)
- Christina Pitart
- Department of Microbiology, Biomedical Diagnostic Center (CDB) and ISGlobal, Hospital Clínic-Universitat de Barcelona - Barcelona (Spain)
| | - Maria Piquet
- Department of Microbiology, Biomedical Diagnostic Center (CDB) and ISGlobal, Hospital Clínic-Universitat de Barcelona - Barcelona (Spain)
| | - Tessa Burgwinkel
- Institute for Medical Microbiology, Immunology and Hygiene, Faculty of Medicine and University Hospital Cologne, University of Cologne - Cologne (Germany)
- German Center for Infection Research, Partner site Bonn-Cologne - Cologne (Germany)
| | - Rocío Arazo Del Pino
- Institute for Medical Microbiology, Immunology and Hygiene, Faculty of Medicine and University Hospital Cologne, University of Cologne - Cologne (Germany)
- German Center for Infection Research, Partner site Bonn-Cologne - Cologne (Germany)
| | - Marc Rubio
- Institut d'Investigació Biomèdica Sant Pau, Department of Microbiology, Hospital de la Santa Creu i Sant Pau - Barcelona (Spain)
| | - Mereia Aguilar
- Department of Microbiology, Biomedical Diagnostic Center (CDB), Hospital Clínic-Universitat de Barcelona - Barcelona (Spain)
| | - Sergi De Gea
- Department of Microbiology, Biomedical Diagnostic Center (CDB), Hospital Clínic-Universitat de Barcelona - Barcelona (Spain)
| | - Andrea Pulgarín
- Department of Microbiology, Biomedical Diagnostic Center (CDB), Hospital Clínic-Universitat de Barcelona - Barcelona (Spain)
| | - Irene Campo
- Department of Microbiology, Biomedical Diagnostic Center (CDB), Hospital Clínic-Universitat de Barcelona - Barcelona (Spain)
| | - Blanca Torralbo
- Department of Preventive Medicine and Epidemiology, Hospital Clínic-Universitat de Barcelona - Barcelona (Spain)
| | - Romina Parejo
- Department of Preventive Medicine and Epidemiology, Hospital Clínic-Universitat de Barcelona - Barcelona (Spain)
| | - Silvia Valls
- Department of Preventive Medicine and Epidemiology, Hospital Clínic-Universitat de Barcelona - Barcelona (Spain)
| | - Isabel Fortes
- Department of Preventive Medicine and Epidemiology, Hospital Clínic-Universitat de Barcelona - Barcelona (Spain)
| | - Gemina Santana
- Department of Preventive Medicine and Epidemiology, Hospital Clínic-Universitat de Barcelona - Barcelona (Spain)
| | - Elisa Rubio
- Department of Microbiology, Biomedical Diagnostic Center (CDB), Hospital Clínic-Universitat de Barcelona - Barcelona (Spain)
- Molecular Core Facility, Hospital Clínic of Barcelona, Barcelona, Spain
| | - Anna Vilella
- Department of Preventive Medicine and Epidemiology, Hospital Clínic-Universitat de Barcelona - Barcelona (Spain)
| | - Ana Del Río
- Department of Infectious Diseases, Hospital Clínic-IDIBAPS, Universitat de Barcelona - Barcelona (Spain)
| | - José Antonio Martínez
- Department of Infectious Diseases, Hospital Clínic-IDIBAPS, Universitat de Barcelona - Barcelona (Spain)
| | - Elisenda Miró
- Institut d'Investigació Biomèdica Sant Pau, Department of Microbiology, Hospital de la Santa Creu i Sant Pau - Barcelona (Spain)
- Department of Genetics and Microbiology of the Universitat Autònoma de Barcelona, Bellaterra, Barcelona (Spain)
| | - Ferran Navarro
- Institut d'Investigació Biomèdica Sant Pau, Department of Microbiology, Hospital de la Santa Creu i Sant Pau - Barcelona (Spain)
- Department of Genetics and Microbiology of the Universitat Autònoma de Barcelona, Bellaterra, Barcelona (Spain)
| | - Mateu Espasa
- Department of Microbiology, Biomedical Diagnostic Center (CDB) and ISGlobal, Hospital Clínic-Universitat de Barcelona - Barcelona (Spain)
| | - Climent Casals-Pascual
- Department of Microbiology, Biomedical Diagnostic Center (CDB) and ISGlobal, Hospital Clínic-Universitat de Barcelona - Barcelona (Spain)
- CIBER de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III - Madrid (Spain)
| | - Jordi Vila
- Department of Microbiology, Biomedical Diagnostic Center (CDB) and ISGlobal, Hospital Clínic-Universitat de Barcelona - Barcelona (Spain)
- CIBER de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III - Madrid (Spain)
| | - Paul G Higgins
- Institute for Medical Microbiology, Immunology and Hygiene, Faculty of Medicine and University Hospital Cologne, University of Cologne - Cologne (Germany)
- German Center for Infection Research, Partner site Bonn-Cologne - Cologne (Germany)
| | - Ignasi Roca
- Department of Microbiology, Biomedical Diagnostic Center (CDB) and ISGlobal, Hospital Clínic-Universitat de Barcelona - Barcelona (Spain)
- CIBER de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III - Madrid (Spain)
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Rampazzo R, Vavasori A, Ronchin L, Riello P, Marchiori M, Saorin G, Beghetto V. Enhanced Antibacterial Activity of Vancomycin Loaded on Functionalized Polyketones. Polymers (Basel) 2024; 16:1890. [PMID: 39000745 PMCID: PMC11244503 DOI: 10.3390/polym16131890] [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: 06/17/2024] [Revised: 06/27/2024] [Accepted: 07/01/2024] [Indexed: 07/17/2024] Open
Abstract
Today, polymeric drug delivery systems (DDS) appear as an interesting solution against bacterial resistance, having great advantages such as low toxicity, biocompatibility, and biodegradability. In this work, two polyketones (PK) have been post-functionalized with sodium taurinate (PKT) or potassium sulfanilate (PKSK) and employed as carriers for Vancomycin against bacterial infections. Modified PKs were easily prepared by the Paal-Knorr reaction and loaded with Vancomycin at a variable pH. All polymers were characterized by FT-IR, DSC, TGA, SEM, and elemental analysis. Antimicrobial activity was tested against Gram-positive Staphylococcus aureus ATCC 25923 and correlated to the different pHs used for its loading (between 2.3 and 8.8). In particular, the minimum inhibitory concentrations achieved with PKT and PKSK loaded with Vancomycin were similar, at 0.23 μg/mL and 0.24 μg/mL, respectively, i.e., six times lower than that with Vancomycin alone. The use of post-functionalized aliphatic polyketones has thus been demonstrated to be a promising way to obtain very efficient polymeric DDS.
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Affiliation(s)
- Rachele Rampazzo
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
- Department of Architecture and Industrial Design, University of Campania “Luigi Vanvitelli”, 81031 Aversa, Italy
| | - Andrea Vavasori
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
| | - Lucio Ronchin
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
| | - Pietro Riello
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
| | - Martina Marchiori
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
| | - Gloria Saorin
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
| | - Valentina Beghetto
- Department of Molecular Sciences and Nanosystems, University Ca’ Foscari of Venice, Via Torino5 155, 30172 Venice, Italy
- Crossing S.r.l., Viale della Repubblica 193/b, 31100 Treviso, Italy
- Consorzio Interuniversitario per le Reattività Chimiche e la Catalisi (CIRCC), Via C. Ulpiani 27, 701268 Bari, Italy
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Chang S, Li Y, Huang X, He N, Wang M, Wang J, Luo M, Li Y, Xie Y. Bioactivity-Based Molecular Networking-Guided Isolation of Epicolidines A-C from the Endophytic Fungus Epicoccum sp. 1-042. JOURNAL OF NATURAL PRODUCTS 2024; 87:1582-1590. [PMID: 38785214 DOI: 10.1021/acs.jnatprod.4c00214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Bioactivity-based molecular networking-guided fractionation enabled the isolation of three new polycyclic tetramic acids bearing cis-decalin, epicolidines A-C (1-3), along with one known compound, PF 1052 (4), from the endophytic fungus Epicoccum sp. 1-042 collected in Tibet, China. Their structures were assigned on the basis of extensive spectroscopic data, partial hydrolysis, advanced Marfey's method, quantum chemistry calculations, and X-ray diffraction analysis. Compounds 2-4 displayed promising activities against Gram-positive bacteria in vitro. Particularly, compound 4 displayed remarkable potential against vancomycin-resistant Enterococcus faecium (VRE) with an MIC value of 0.25 μg/mL, lower than the MIC (0.5 μg/mL) of the antibiotic combination quinupristin/dalfopristin (Q/D). In a further in vivo study, compound 4 increased the survival rate to 100% in the VRE-G. mellonella infection model at a concentration of 10 mg/kg.
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Affiliation(s)
- Shanshan Chang
- CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Tiantan xili No. 1, Beijing 100050, People's Republic of China
| | - Yihong Li
- CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Tiantan xili No. 1, Beijing 100050, People's Republic of China
| | - Xinyue Huang
- CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Tiantan xili No. 1, Beijing 100050, People's Republic of China
| | - Ning He
- CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Tiantan xili No. 1, Beijing 100050, People's Republic of China
| | - Mengyuan Wang
- CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Tiantan xili No. 1, Beijing 100050, People's Republic of China
| | - Jiahan Wang
- CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Tiantan xili No. 1, Beijing 100050, People's Republic of China
| | - Mengna Luo
- CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Tiantan xili No. 1, Beijing 100050, People's Republic of China
| | - Yan Li
- NHC Key Laboratory of Biotechnology of Antibiotics, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Tiantan xili No. 1, Beijing 100050, People's Republic of China
| | - Yunying Xie
- CAMS Key Laboratory of Synthetic Biology for Drug Innovation, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Tiantan xili No. 1, Beijing 100050, People's Republic of China
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Roque-Borda CA, Primo LMDG, Franzyk H, Hansen PR, Pavan FR. Recent advances in the development of antimicrobial peptides against ESKAPE pathogens. Heliyon 2024; 10:e31958. [PMID: 38868046 PMCID: PMC11167364 DOI: 10.1016/j.heliyon.2024.e31958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 06/14/2024] Open
Abstract
Multi-drug resistant ESKAPE pathogens (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species) are a global health threat. The severity of the problem lies in its impact on mortality, therapeutic limitations, the threat to public health, and the costs associated with managing infections caused by these resistant strains. Effectively addressing this challenge requires innovative approaches to research, the development of new antimicrobials, and more responsible antibiotic use practices globally. Antimicrobial peptides (AMPs) are a part of the innate immune system of all higher organisms. They are short, cationic and amphipathic molecules with broad-spectrum activity. AMPs interact with the negatively charged bacterial membrane. In recent years, AMPs have attracted considerable interest as potential antibiotics. However, AMPs have low bioavailability and short half-lives, which may be circumvented by chemical modification. This review presents recent in vitro and in silico strategies for the modification of AMPs to improve their stability and application in preclinical experiments.
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Affiliation(s)
- Cesar Augusto Roque-Borda
- São Paulo State University (UNESP), Tuberculosis Research Laboratory, School of Pharmaceutical Sciences, Araraquara, Brazil
- Universidad Católica de Santa María, Vicerrectorado de Investigación, Arequipa, Peru
| | | | - Henrik Franzyk
- University of Copenhagen, Faculty of Health and Medical Sciences, Department of Drug Design and Pharmacology, Denmark
| | - Paul Robert Hansen
- University of Copenhagen, Faculty of Health and Medical Sciences, Department of Drug Design and Pharmacology, Denmark
| | - Fernando Rogério Pavan
- São Paulo State University (UNESP), Tuberculosis Research Laboratory, School of Pharmaceutical Sciences, Araraquara, Brazil
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5
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Martin-Mateos R, Martínez-Arenas L, Carvalho-Gomes Á, Aceituno L, Cadahía V, Salcedo M, Arias A, Lorente S, Odriozola A, Zamora J, Blanes M, Len Ó, Benítez L, Campos-Varela I, González-Diéguez ML, Lázaro DR, Fortún J, Cuadrado A, Carrasco NM, Rodríguez-Perálvarez M, Álvarez-Navascues C, Fábrega E, Serrano T, Cuervas-Mons V, Rodríguez M, Castells L, Berenguer M, Graus J, Albillos A. Multidrug-resistant bacterial infections after liver transplantation: Prevalence, impact, and risk factors. J Hepatol 2024; 80:904-912. [PMID: 38428641 DOI: 10.1016/j.jhep.2024.02.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 01/28/2024] [Accepted: 02/12/2024] [Indexed: 03/03/2024]
Abstract
BACKGROUND & AIMS Infections by multidrug-resistant bacteria (MDRB) are an increasing healthcare problem worldwide. This study analyzes the incidence, burden, and risk factors associated with MDRB infections after liver transplant(ation) (LT). METHODS This retrospective, multicenter cohort study included adult patients who underwent LT between January 2017 and January 2020. Risk factors related to pre-LT disease, surgical procedure, and postoperative stay were analyzed. Multivariate logistic regression analysis was performed to identify independent predictors of MDRB infections within the first 90 days after LT. RESULTS We included 1,045 LT procedures (960 patients) performed at nine centers across Spain. The mean age of our cohort was 56.8 ± 9.3 years; 75.4% (n = 782) were male. Alcohol-related liver disease was the most prevalent underlying etiology (43.2.%, n = 451). Bacterial infections occurred in 432 patients (41.3%) who presented with a total of 679 episodes of infection (respiratory infections, 19.3%; urinary tract infections, 18.5%; bacteremia, 13.2% and cholangitis 11%, among others). MDRB were isolated in 227 LT cases (21.7%) (348 episodes). Enterococcus faecium (22.1%), Escherichia coli (18.4%), and Pseudomonas aeruginosa (15.2%) were the most frequently isolated microorganisms. In multivariate analysis, previous intensive care unit admission (0-3 months before LT), previous MDRB infections (0-3 months before LT), and an increasing number of packed red blood cell units transfused during surgery were identified as independent predictors of MDRB infections. Mortality at 30, 90, 180, and 365 days was significantly higher in patients with MDRB isolates. CONCLUSION MDRB infections are highly prevalent after LT and have a significant impact on prognosis. Enterococcus faecium is the most frequently isolated multi-resistant microorganism. New pharmacological and surveillance strategies aimed at preventing MDRB infections after LT should be considered for patients with risk factors. IMPACT AND IMPLICATIONS Multidrug-resistant bacterial infections have a deep impact on morbidity and mortality after liver transplantation. Strategies aimed at improving prophylaxis, early identification, and empirical treatment are paramount. Our study unveiled the prevalence and main risk factors associated with these infections, and demonstrated that gram-positive bacteria, particularly Enterococcus faecium, are frequent in this clinical scenario. These findings provide valuable insights for the development of prophylactic and empirical antibiotic treatment protocols after liver transplantation.
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Affiliation(s)
- Rosa Martin-Mateos
- Servicio de Gastroenterología y Hepatología, Hospital Universitario Ramón y Cajal, Madrid. Universidad de Alcalá, Madrid, España; Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, España; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto Salud Carlos III, Madrid, España
| | - Laura Martínez-Arenas
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto Salud Carlos III, Madrid, España; Hepatology, Hepatobiliopancreatic Surgery and Transplant Group, IIS La Fe Health Research Institute, HUP La Fe, Valencia, España; Department of Biotechnology, Universitat Politècnica de València, Valencia, Spain
| | - Ángela Carvalho-Gomes
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto Salud Carlos III, Madrid, España; Hepatology, Hepatobiliopancreatic Surgery and Transplant Group, IIS La Fe Health Research Institute, HUP La Fe, Valencia, España
| | - Laia Aceituno
- Liver Unit, Vall d'Hebron Hospital Universitari, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Barcelona Hospital Campus, Barcelona, España
| | - Valle Cadahía
- Liver Unit, Division of Gastroenterology and Hepatology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Magdalena Salcedo
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto Salud Carlos III, Madrid, España; Liver Unit, Gastroenterology Department, Hospital Universitario Gregorio Marañón, Universidad Complutense, Madrid, España
| | - Ana Arias
- Unidad de Trasplante Hepático, Servicio de Medicina Interna, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, España
| | - Sara Lorente
- Unidad de Hepatología y Trasplante Hepático, Hospital Clínico Universitario Lozano Blesa, Zaragoza, España; Instituto de Investigación Sanitaria de Aragón (IIS Aragón), España
| | - Aitor Odriozola
- Gastroenterology and Hepatology Department, Clinical and Translational Research in Digestive Diseases, Valdecilla Research Institute (IDIVAL), Marqués de Valdecilla University Hospital, Santander, Spain
| | - Javier Zamora
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto Salud Carlos III, Madrid, España; Reina Sofía University Hospital, Hepatology and Liver Transplantation, IMIBIC, Córdoba, España
| | - Marino Blanes
- Infectious Diseases Department, Hospital La Fe, Valencia, España
| | - Óscar Len
- Infectious Diseases Department, Vall d'Hebron Hospital Universitari, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Barcelona Hospital Campus, Barcelona, España; Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERInfec), Instituto Salud Carlos III, Madrid, España; Department of Medicine, Universidad Autónoma, Barcelona, España
| | - Laura Benítez
- Unidad de Trasplante Hepático, Servicio de Medicina Interna, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, España
| | - Isabel Campos-Varela
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto Salud Carlos III, Madrid, España; Liver Unit, Vall d'Hebron Hospital Universitari, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Barcelona Hospital Campus, Barcelona, España; Department of Medicine, Universidad Autónoma, Barcelona, España
| | - María Luisa González-Diéguez
- Liver Unit, Division of Gastroenterology and Hepatology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Diego Rojo Lázaro
- Servicio de Gastroenterología y Hepatología, Hospital Universitario Ramón y Cajal, Madrid. Universidad de Alcalá, Madrid, España; Liver Section, Gastroenterology Department, Department of Medicine, Hospital del Mar, Barcelona, Spain
| | - Jesús Fortún
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, España; Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERInfec), Instituto Salud Carlos III, Madrid, España; Infectious Diseases Department, Hospital Universitario Ramón y Cajal, Madrid. Universidad de Alcalá, Madrid, España
| | - Antonio Cuadrado
- Gastroenterology and Hepatology Department, Clinical and Translational Research in Digestive Diseases, Valdecilla Research Institute (IDIVAL), Marqués de Valdecilla University Hospital, Santander, Spain
| | - Natalia Marcos Carrasco
- Servicio de Gastroenterología y Hepatología, Hospital Universitario Ramón y Cajal, Madrid. Universidad de Alcalá, Madrid, España
| | - Manuel Rodríguez-Perálvarez
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto Salud Carlos III, Madrid, España; Reina Sofía University Hospital, Hepatology and Liver Transplantation, IMIBIC, Córdoba, España
| | - Carmen Álvarez-Navascues
- Liver Unit, Division of Gastroenterology and Hepatology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Emilio Fábrega
- Gastroenterology and Hepatology Department, Clinical and Translational Research in Digestive Diseases, Valdecilla Research Institute (IDIVAL), Marqués de Valdecilla University Hospital, Santander, Spain
| | - Trinidad Serrano
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto Salud Carlos III, Madrid, España; Unidad de Hepatología y Trasplante Hepático, Hospital Clínico Universitario Lozano Blesa, Zaragoza, España; Instituto de Investigación Sanitaria de Aragón (IIS Aragón), España
| | - Valentín Cuervas-Mons
- Unidad de Trasplante Hepático, Servicio de Medicina Interna, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, España; Universidad Autónoma Madrid, Medicina, Madrid, Spain
| | - Manuel Rodríguez
- Liver Unit, Division of Gastroenterology and Hepatology, Hospital Universitario Central de Asturias, Oviedo, Spain; University of Oviedo, Spain
| | - Lluis Castells
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto Salud Carlos III, Madrid, España; Liver Unit, Vall d'Hebron Hospital Universitari, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Barcelona Hospital Campus, Barcelona, España; Department of Medicine, Universidad Autónoma, Barcelona, España
| | - Marina Berenguer
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto Salud Carlos III, Madrid, España; Hepatology, Hepatobiliopancreatic Surgery and Transplant Group, IIS La Fe Health Research Institute, HUP La Fe, Valencia, España; Department of Medicine, Universidad de Valencia, Valencia, Spain
| | - Javier Graus
- Servicio de Gastroenterología y Hepatología, Hospital Universitario Ramón y Cajal, Madrid. Universidad de Alcalá, Madrid, España
| | - Agustín Albillos
- Servicio de Gastroenterología y Hepatología, Hospital Universitario Ramón y Cajal, Madrid. Universidad de Alcalá, Madrid, España; Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, España; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto Salud Carlos III, Madrid, España.
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Summer M, Ali S, Tahir HM, Abaidullah R, Fiaz U, Mumtaz S, Fiaz H, Hassan A, Mughal TA, Farooq MA. Mode of Action of Biogenic Silver, Zinc, Copper, Titanium and Cobalt Nanoparticles Against Antibiotics Resistant Pathogens. J Inorg Organomet Polym Mater 2024; 34:1417-1451. [DOI: 10.1007/s10904-023-02935-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 11/02/2023] [Indexed: 08/04/2024]
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7
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Coccitto SN, Cinthi M, Simoni S, Pocognoli A, Zeni G, Mazzariol A, Morroni G, Mingoia M, Giovanetti E, Brenciani A, Vignaroli C. Genetic analysis of vancomycin-variable Enterococcus faecium clinical isolates in Italy. Eur J Clin Microbiol Infect Dis 2024; 43:673-682. [PMID: 38296911 DOI: 10.1007/s10096-024-04768-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 01/24/2024] [Indexed: 02/02/2024]
Abstract
PURPOSE To investigate the occurrence of vancomycin-variable enterococci (VVE) in a hospital in central Italy. METHODS vanA positive but vancomycin-susceptible Enterococcus faecium isolates (VVE-S) were characterized by antibiotic susceptibility tests, molecular typing (PFGE and MLST), and WGS approach. The reversion of VVE-S to a resistant phenotype was assessed by exposure to increasing vancomycin concentrations, and the revertant isolates were used in filter mating experiments. qPCR was used to analyze the plasmid copy number. RESULTS Eleven putative VVE-S were selected. WGS revealed two categories of vanA cluster plasmid located: the first type showed the lack of vanR, the deletion of vanS, and an intact vanH/vanA/vanX cluster; the second type was devoid of both vanR and vanS and showed a deletion of 544-bp at the 5'-end of the vanH. Strains (n = 7) carrying the first type of vanA cluster were considered VVE-S and were able to regain a resistance phenotype (VVE-R) in the presence of vancomycin, due to a 44-bp deletion in the promoter region of vanH/vanA/vanX, causing its constitutive expression. VVE-R strains were not able to transfer resistance by conjugation, and the resistance phenotype was unstable: after 11 days of growth without selective pressure, the revertants were still resistant but showed a lower vancomycin MIC. A higher plasmid copy number in the revertant strains was probably related to the resistance phenotype. CONCLUSION We highlight the importance of VVE transition to VRE under vancomycin therapy resulting in a potential failure treatment. We also report the first-time identification of VVE-S isolates pstS-null belonging to ST1478.
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Affiliation(s)
- Sonia Nina Coccitto
- Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy
| | - Marzia Cinthi
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Serena Simoni
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Antonella Pocognoli
- Clinical Microbiology Laboratory, Azienda Ospedaliero-Universitaria "Ospedali Riuniti", Ancona, Italy
| | - Guido Zeni
- Department of Diagnostics and Public Health, Verona University, Verona, Italy
| | - Annarita Mazzariol
- Department of Diagnostics and Public Health, Verona University, Verona, Italy
| | - Gianluca Morroni
- Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy
| | - Marina Mingoia
- Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy
| | - Eleonora Giovanetti
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Andrea Brenciani
- Department of Biomedical Sciences and Public Health, Polytechnic University of Marche, Ancona, Italy.
| | - Carla Vignaroli
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy
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Carpenter JM, Hynds HM, Bimpeh K, Hines KM. HILIC-IM-MS for Simultaneous Lipid and Metabolite Profiling of Bacteria. ACS MEASUREMENT SCIENCE AU 2024; 4:104-116. [PMID: 38404491 PMCID: PMC10885331 DOI: 10.1021/acsmeasuresciau.3c00051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 02/27/2024]
Abstract
Although MALDI-ToF platforms for microbial identifications have found great success in clinical microbiology, the sole use of protein fingerprints for the discrimination of closely related species, strain-level identifications, and detection of antimicrobial resistance remains a challenge for the technology. Several alternative mass spectrometry-based methods have been proposed to address the shortcomings of the protein-centric approach, including MALDI-ToF methods for fatty acid/lipid profiling and LC-MS profiling of metabolites. However, the molecular diversity of microbial pathogens suggests that no single "ome" will be sufficient for the accurate and sensitive identification of strain- and susceptibility-level profiling of bacteria. Here, we describe the development of an alternative approach to microorganism profiling that relies upon both metabolites and lipids rather than a single class of biomolecule. Single-phase extractions based on butanol, acetonitrile, and water (the BAW method) were evaluated for the recovery of lipids and metabolites from Gram-positive and -negative microorganisms. We found that BAW extraction solutions containing 45% butanol provided optimal recovery of both molecular classes in a single extraction. The single-phase extraction method was coupled to hydrophilic interaction liquid chromatography (HILIC) and ion mobility-mass spectrometry (IM-MS) to resolve similar-mass metabolites and lipids in three dimensions and provide multiple points of evidence for feature annotation in the absence of tandem mass spectrometry. We demonstrate that the combined use of metabolites and lipids can be used to differentiate microorganisms to the species- and strain-level for four of the ESKAPE pathogens (Enterococcus faecium, Staphylococcus aureus, Acinetobacter baumannii, and Pseudomonas aeruginosa) using data from a single ionization mode. These results present promising, early stage evidence for the use of multiomic signatures for the identification of microorganisms by liquid chromatography, ion mobility, and mass spectrometry that, upon further development, may improve upon the level of identification provided by current methods.
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Affiliation(s)
- Jana M. Carpenter
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Hannah M. Hynds
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Kingsley Bimpeh
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Kelly M. Hines
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
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Baindara P, Mandal SM. Gut-Antimicrobial Peptides: Synergistic Co-Evolution with Antibiotics to Combat Multi-Antibiotic Resistance. Antibiotics (Basel) 2023; 12:1732. [PMID: 38136766 PMCID: PMC10740742 DOI: 10.3390/antibiotics12121732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/11/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023] Open
Abstract
Due to huge diversity and dynamic competition, the human gut microbiome produces a diverse array of antimicrobial peptides (AMPs) that play an important role in human health. The gut microbiome has an important role in maintaining gut homeostasis by the AMPs and by interacting with other human organs via established connections such as the gut-lung, and gut-brain axis. Additionally, gut AMPs play a synergistic role with other gut microbiota and antimicrobials to maintain gut homeostasis by fighting against multi-antibiotic resistance (MAR) bacteria. Further, conventional antibiotics intake creates a synergistic evolutionary pressure for gut AMPs, where antibiotics and gut AMPs fight synergistically against MAR. Overall, gut AMPs are evolving under a complex and highly synergistic co-evolutionary pressure created by the various interactions between gut microbiota, gut AMPs, and antibiotics; however, the complete mechanism is not well understood. The current review explores the synergistic action of gut AMPs and antibiotics along with possibilities to fight against MAR bacteria.
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Affiliation(s)
- Piyush Baindara
- Radiation Oncology, NextGen Precision Health, School of Medicine, University of Missouri, Columbia, MO 65211, USA
| | - Santi M. Mandal
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India;
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10
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Cinthi M, Coccitto SN, Simoni S, Zeni G, Mazzariol A, Pocognoli A, Du XD, Brenciani A, Giovanetti E. Characterization of a non-functional erm(T) gene in a clinical Enterococcus faecium strain. J Antimicrob Chemother 2023; 78:3006-3008. [PMID: 37837413 DOI: 10.1093/jac/dkad321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2023] Open
Affiliation(s)
- Marzia Cinthi
- Unit of Microbiology, Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Sonia Nina Coccitto
- Unit of Microbiology, Department of Biomedical Sciences and Public Health, Polytechnic University of Marche Medical School, Ancona, Italy
| | - Serena Simoni
- Unit of Microbiology, Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy
| | - Guido Zeni
- Department of Diagnostics and Public Health, Verona University, Verona, Italy
| | - Annarita Mazzariol
- Department of Diagnostics and Public Health, Verona University, Verona, Italy
| | - Antonella Pocognoli
- Clinical Microbiology Laboratory, Azienda Ospedaliero-Universitaria 'Ospedali Riuniti', Ancona, Italy
| | - Xiang-Dang Du
- Department of Basic Veterinary, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, People's Republic of China
| | - Andrea Brenciani
- Unit of Microbiology, Department of Biomedical Sciences and Public Health, Polytechnic University of Marche Medical School, Ancona, Italy
| | - Eleonora Giovanetti
- Unit of Microbiology, Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy
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11
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Wei M, Wang P, Li T, Wang Q, Su M, Gu L, Wang S. Antimicrobial and antibiofilm effects of essential fatty acids against clinically isolated vancomycin-resistant Enterococcus faecium. Front Cell Infect Microbiol 2023; 13:1266674. [PMID: 37842001 PMCID: PMC10570806 DOI: 10.3389/fcimb.2023.1266674] [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: 07/25/2023] [Accepted: 09/13/2023] [Indexed: 10/17/2023] Open
Abstract
Introduction Enterococcus faecium is a leading cause of hospital-acquired infections, which has become a serious public health concern. The increasing incidence of vancomycin-resistant E. faecium (VRE-fm) raises an urgent need to find new antimicrobial agents as a complement to traditional antibiotics. The study aimed to evaluate the antimicrobial and antibiofilm activity of essential fatty acids (EFAs) against VRE-fm, and further explore the molecular mechanism of the antibiofilm activity of EFAs. Method The microdilution broth method was used for antimicrobial susceptibility testing with traditional antibiotics and EFAs, including α-linolenic acid (ALA), eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), linoleic acid (LOA), γ-linolenic acid (GLA), and arachidonic acid (AA). The effect of EFAs on cell morphology of VRE-fm was investigated by scanning electron microscopy. The crystal violet method was used to evaluate the antibiofilm activities of EFAs against VRE-fm. Furthermore, the expression of biofilm-related genes (acm, atlA, esp, and sagA) of VRE-fm isolates under the action of GLA was analyzed using quantitative reverse transcription PCR (qRT-PCR) assay. Results VRE-fm isolates were highly resistant to most traditional antibiotics, only highly susceptible to quinupristin-dalfopristin (90.0%), tigecycline (100%), and linezolid (100%). EPA, DHA, and GLA exhibited excellent antimicrobial activity. The MIC50/90 of EPA, DHA, and GLA were 0.5/1, 0.25/0.5, and 0.5/1 mM, respectively. SEM imaging showed that strain V27 adsorbed a large number of DHA molecules. Furthermore, all EFAs exhibited excellent inhibition and eradication activities against VRE-fm biofilms. The biofilm inhibition rates of EFAs ranged from 45.3% to 58.0%, and eradication rates ranged from 54.1% to 63.4%, against 6 VRE-fm isolates with moderate biofilm formation ability. GLA exhibited remarkable antibiofilm activity against VRE-fm isolates. The qRT-PCR analysis showed that GLA could significantly down-regulate the expression of the atlA gene (P < 0.01) of VRE-fm. Conclusion DHA showed the strongest antibacterial activity, while GLA showed the strongest antibiofilm effect among the EFAs with antibacterial activity. Our novel findings indicate that the antibiofilm activity of GLA may be through down-regulating the atlA gene expression in VRE-fm. Therefore, DHA and GLA had the potential to be developed as therapeutic agents to treat infections related to multiple antimicrobial-resistant E. faecium.
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Affiliation(s)
- Ming Wei
- Department of Infectious Diseases and Clinical Microbiology, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Peng Wang
- Department of Infectious Diseases and Clinical Microbiology, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Tianmeng Li
- Department of Infectious Diseases and Clinical Microbiology, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Qiangyi Wang
- Department of Clinical Laboratory, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Mingze Su
- Department of Clinical Laboratory, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Li Gu
- Department of Infectious Diseases and Clinical Microbiology, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Shuai Wang
- Department of Infectious Diseases and Clinical Microbiology, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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Șchiopu P, Toc DA, Colosi IA, Costache C, Ruospo G, Berar G, Gălbău ȘG, Ghilea AC, Botan A, Pană AG, Neculicioiu VS, Todea DA. An Overview of the Factors Involved in Biofilm Production by the Enterococcus Genus. Int J Mol Sci 2023; 24:11577. [PMID: 37511337 PMCID: PMC10380289 DOI: 10.3390/ijms241411577] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/08/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
Enterococcus species are known for their ability to form biofilms, which contributes to their survival in extreme environments and involvement in persistent bacterial infections, especially in the case of multi-drug-resistant strains. This review aims to provide a comprehensive understanding of the mechanisms underlying biofilm formation in clinically important species such as Enterococcus faecalis and the less studied but increasingly multi-drug-resistant Enterococcus faecium, and explores potential strategies for their eradication. Biofilm formation in Enterococcus involves a complex interplay of genes and virulence factors, including gelatinase, cytolysin, Secreted antigen A, pili, microbial surface components that recognize adhesive matrix molecules (MSCRAMMs), and DNA release. Quorum sensing, a process of intercellular communication, mediated by peptide pheromones such as Cob, Ccf, and Cpd, plays a crucial role in coordinating biofilm development by targeting gene expression and regulation. Additionally, the regulation of extracellular DNA (eDNA) release has emerged as a fundamental component in biofilm formation. In E. faecalis, the autolysin N-acetylglucosaminidase and proteases such as gelatinase and serin protease are key players in this process, influencing biofilm development and virulence. Targeting eDNA may offer a promising avenue for intervention in biofilm-producing E. faecalis infections. Overall, gaining insights into the intricate mechanisms of biofilm formation in Enterococcus may provide directions for anti-biofilm therapeutic research, with the purpose of reducing the burden of Enterococcus-associated infections.
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Affiliation(s)
- Pavel Șchiopu
- Department of Microbiology, "Iuliu Hațieganu" University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
- Department of Pneumology, "Iuliu Hațieganu" University of Medicine and Pharmacy, 400332 Cluj-Napoca, Romania
| | - Dan Alexandru Toc
- Department of Microbiology, "Iuliu Hațieganu" University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Ioana Alina Colosi
- Department of Microbiology, "Iuliu Hațieganu" University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Carmen Costache
- Department of Microbiology, "Iuliu Hațieganu" University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Giuseppe Ruospo
- Faculty of Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - George Berar
- Faculty of Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Ștefan-Gabriel Gălbău
- Faculty of Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Alexandra Cristina Ghilea
- Faculty of Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Alexandru Botan
- Faculty of Medicine, "Iuliu Hațieganu" University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Adrian-Gabriel Pană
- Department of Microbiology, "Iuliu Hațieganu" University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Vlad Sever Neculicioiu
- Department of Microbiology, "Iuliu Hațieganu" University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
| | - Doina Adina Todea
- Department of Pneumology, "Iuliu Hațieganu" University of Medicine and Pharmacy, 400332 Cluj-Napoca, Romania
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Monteiro Marques J, Coelho M, Santana AR, Pinto D, Semedo-Lemsaddek T. Dissemination of Enterococcal Genetic Lineages: A One Health Perspective. Antibiotics (Basel) 2023; 12:1140. [PMID: 37508236 PMCID: PMC10376465 DOI: 10.3390/antibiotics12071140] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/22/2023] [Accepted: 06/29/2023] [Indexed: 07/30/2023] Open
Abstract
Enterococcus spp. are commensals of the gastrointestinal tracts of humans and animals and colonize a variety of niches such as water, soil, and food. Over the last three decades, enterococci have evolved as opportunistic pathogens, being considered ESKAPE pathogens responsible for hospital-associated infections. Enterococci's ubiquitous nature, excellent adaptative capacity, and ability to acquire virulence and resistance genes make them excellent sentinel proxies for assessing the presence/spread of pathogenic and virulent clones and hazardous determinants across settings of the human-animal-environment triad, allowing for a more comprehensive analysis of the One Health continuum. This review provides an overview of enterococcal fitness and pathogenic traits; the most common clonal complexes identified in clinical, veterinary, food, and environmental sources; as well as the dissemination of pathogenic genomic traits (virulome, resistome, and mobilome) found in high-risk clones worldwide, across the One Health continuum.
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Affiliation(s)
- Joana Monteiro Marques
- Centre for Interdisciplinary Research in Animal Health (CIISA), Faculty of Veterinary Medicine, University of Lisbon, Av. da Universidade Técnica de Lisboa, 1300-477 Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Mariana Coelho
- Centre for Interdisciplinary Research in Animal Health (CIISA), Faculty of Veterinary Medicine, University of Lisbon, Av. da Universidade Técnica de Lisboa, 1300-477 Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Andressa Rodrigues Santana
- Centre for Interdisciplinary Research in Animal Health (CIISA), Faculty of Veterinary Medicine, University of Lisbon, Av. da Universidade Técnica de Lisboa, 1300-477 Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Daniel Pinto
- Centre for Interdisciplinary Research in Animal Health (CIISA), Faculty of Veterinary Medicine, University of Lisbon, Av. da Universidade Técnica de Lisboa, 1300-477 Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Teresa Semedo-Lemsaddek
- Centre for Interdisciplinary Research in Animal Health (CIISA), Faculty of Veterinary Medicine, University of Lisbon, Av. da Universidade Técnica de Lisboa, 1300-477 Lisbon, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
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Supuran CT. An overview of novel antimicrobial carbonic anhydrase inhibitors. Expert Opin Ther Targets 2023; 27:897-910. [PMID: 37747071 DOI: 10.1080/14728222.2023.2263914] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 09/24/2023] [Indexed: 09/26/2023]
Abstract
INTRODUCTION Four different genetic families of the enzyme carbonic anhydrase (CA, EC 4.2.1.1) are present in bacteria, α-, β-, γ- and ι-CAs. They play relevant functions related to CO2, HCO3-/H+ ions homeostasis, being involved in metabolic biosynthetic pathways, pH regulation, and represent virulence and survival factors for bacteria in various niches. Bacterial CAs started to be considered druggable targets in the last decade, as their inhibition impairs survival, growth, and virulence of these pathogens. AREAS COVERED Significant advances were registered in the last years for designing effective inhibitors of sulfonamide type for Helicobacter pylori α-CA, Neisseria gonorrhoeae α-CA, vacomycin-resistant enterococci (VRE) α- and γ-CAs, for which the in vivo validation has also been achieved. MIC-s in the range of 0.25-4.0 µg/mL for wild type and drug resistant N. gonorrhoeae strains, and of 0.007-2.0 µg/mL for VRE were observed for some 1,3,4-thiadiazole-2-sulfonamides, and acetazolamide was effective in gut decolonization from VRE. EXPERT OPINION Targeting bacterial CAs from other pathogens, among which Vibrio cholerae, Mycobacterium tuberculosis, Brucella suis, Salmonella enterica serovar Typhimurium, Legionella pneumophila, Porphyromonas gingivalis, Clostridium perfringens, Streptococcus mutans, Burkholderia pseudomallei, Francisella tularensis, Escherichia coli, Mammaliicoccus (Staphylococcus) sciuri, Pseudomonas aeruginosa, may lead to novel antibacterials devoid of drug resistance problems.
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Affiliation(s)
- Claudiu T Supuran
- Department of NEUROFARBA, Pharmaceutical and Nutraceutical Section, University of Florence, Sesto Fiorentino, Firenze, Italy
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15
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Boudier A, Le Faou A. Nanoparticles and Other Nanostructures and the Control of Pathogens: From Bench to Vaccines. Int J Mol Sci 2023; 24:ijms24109063. [PMID: 37240409 DOI: 10.3390/ijms24109063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
Parasites and microorganisms (protozoa, bacteria, and viruses) are still a concern despite progress in hygiene and anti-infectious therapy [...].
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Affiliation(s)
- Ariane Boudier
- Faculty of Pharmacy, Université de Lorraine, F-54000 Nancy, France
| | - Alain Le Faou
- Faculty of Pharmacy, Université de Lorraine, F-54000 Nancy, France
- Faculty of Medicine, Maieutic and Health Sciences, University of Lorraine, Pole Brabois Santé, F-54000 Nancy, France
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16
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Simsek O, Canli K, Benek A, Turu D, Altuner EM. Biochemical, Antioxidant Properties and Antimicrobial Activity of Epiphytic Leafy Liverwort Frullania dilatata (L.) Dumort. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12091877. [PMID: 37176934 PMCID: PMC10181397 DOI: 10.3390/plants12091877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 04/24/2023] [Accepted: 04/29/2023] [Indexed: 05/15/2023]
Abstract
In this study, the biochemical, antioxidant properties, and antimicrobial activity of the epiphytic leafy liverwort Frullania dilatata (L.) Dumort were investigated. Due to the scarcity and difficulty in obtaining liverworts, research on their bioactivity is limited; thus, this study aimed to uncover the potential of F. dilatata. The antimicrobial activity was evaluated against various microorganisms, including food isolates, clinical isolates, multidrug-resistant strains, and standard strains, using the disk diffusion method and determining the minimum inhibitory concentration (MIC) values. This study represents the first antioxidant investigation on F. dilatata and an antimicrobial study using ethanol extract and the disk diffusion method. Notably, susceptibility was observed in Enterococcus faecalis ATCC 29212, Enterococcus faecium FI, Listeria monocytogenes ATCC 7644, Providencia rustigianii MDR, and Staphylococcus aureus ATCC 25923. The antioxidant capacity was assessed using the DPPH method, emphasizing the high scavenging performance. Gas chromatography-mass spectrometry (GC-MS) analysis identified the primary compounds as frullanolide (19.08%), 2,3-Dimethylanisole (15.21%), linoleic acid (11.11%), palmitic acid (9.83%), and valerenic acid (5.3%). The results demonstrated the significant antimicrobial activity of F. dilatata against the tested microorganisms and its potent antioxidant properties. These findings emphasize the potential of F. dilatata as a promising source of natural antimicrobial and antioxidant agents, underscoring the importance of further investigation into its bioactive compounds and elucidating the mechanisms of action in future studies.
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Affiliation(s)
- Ozcan Simsek
- Department of Forestry, Yenice Vocational School, Çanakkale Onsekiz Mart University, Çanakkale 17950, Türkiye
| | - Kerem Canli
- Department of Biology, Faculty of Science, Dokuz Eylül University, Izmir 35390, Türkiye
- Fauna and Flora Research and Application Center, Dokuz Eylül University, Izmir 35390, Türkiye
| | - Atakan Benek
- Department of Biology, Graduate School of Natural and Applied Sciences, Kastamonu University, Kastamonu 37150, Türkiye
| | - Dilay Turu
- Department of Biology, Graduate School of Natural and Applied Science, Dokuz Eylül University, Izmir 35390, Türkiye
| | - Ergin Murat Altuner
- Department of Biology, Faculty of Science, Kastamonu University, Kastamonu 37150, Türkiye
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Tunca-Pinarli Y, Benek A, Turu D, Bozyel ME, Canli K, Altuner EM. Biological Activities and Biochemical Composition of Endemic Achillea fraasii. Microorganisms 2023; 11:microorganisms11040978. [PMID: 37110401 PMCID: PMC10144759 DOI: 10.3390/microorganisms11040978] [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: 03/16/2023] [Revised: 04/06/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
In this study, we investigated the antimicrobial, antioxidant, and antibiofilm activities and the biochemical composition of Achillea fraasii. The antimicrobial activity of A. fraasii ethanol extract (AFEt) was tested against 48 strains, and this is the first study testing the antimicrobial activity of this plant to this extent. The antioxidant activity was determined using the DPPH assay, and the antibiofilm activity of A. fraasii aqueous extract (AFAq) against five strains was assessed. The chemical composition of the plant extract was determined using GC-MS with artemisia ketone (19.41%) as the main component. The findings indicated that AFEt displayed antimicrobial activity against 38 strains, with a particular efficacy observed against various Staphylococcus aureus strains, such as S. aureus ATCC 25923, clinically isolated, multidrug resistant (MDR), and methicillin-resistant (MRSA) strains. In addition, the highest activity was observed against Enterococcus faecium. Moreover, the extract demonstrated activity against Candida strains. The plant extract also showed relatively good antioxidant activity compared to ascorbic acid, with an EC50 value of 55.52 µg/mL. However, AFAq acted as a biofilm activator against Escherichia coli ATCC 25922, increasing the biofilm formation by 2.63-fold. In conclusion, our study demonstrates the potential of A. fraasii as a source of antimicrobial and antioxidant agents.
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Affiliation(s)
- Yagmur Tunca-Pinarli
- Department of Biology, Graduate School of Natural and Applied Sciences, Dokuz Eylül University, Izmir 35390, Türkiye
| | - Atakan Benek
- Department of Biology, Graduate School of Natural and Applied Sciences, Kastamonu University, Kastamonu 37150, Türkiye
| | - Dilay Turu
- Department of Biology, Graduate School of Natural and Applied Sciences, Dokuz Eylül University, Izmir 35390, Türkiye
| | - Mustafa Eray Bozyel
- Department of Biology, Faculty of Arts and Sciences, Çanakkale Onsekiz Mart University, Çanakkale 17020, Türkiye
| | - Kerem Canli
- Department of Biology, Faculty of Science, Dokuz Eylül University, Izmir 35390, Türkiye
- Fauna and Flora Research and Application Center, Dokuz Eylül University, Izmir 35390, Türkiye
| | - Ergin Murat Altuner
- Department of Biology, Faculty of Science, Kastamonu University, Kastamonu 37150, Türkiye
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