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Burke Ó, Zeden MS, O'Gara JP. The pathogenicity and virulence of the opportunistic pathogen Staphylococcus epidermidis. Virulence 2024; 15:2359483. [PMID: 38868991 DOI: 10.1080/21505594.2024.2359483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 05/19/2024] [Indexed: 06/14/2024] Open
Abstract
The pervasive presence of Staphylococcus epidermidis and other coagulase-negative staphylococci on the skin and mucous membranes has long underpinned a casual disregard for the infection risk that these organisms pose to vulnerable patients in healthcare settings. Prior to the recognition of biofilm as an important virulence determinant in S. epidermidis, isolation of this microorganism in diagnostic specimens was often overlooked as clinically insignificant with potential delays in diagnosis and onset of appropriate treatment, contributing to the establishment of chronic infection and increased morbidity or mortality. While impressive progress has been made in our understanding of biofilm mechanisms in this important opportunistic pathogen, research into other virulence determinants has lagged S. aureus. In this review, the broader virulence potential of S. epidermidis including biofilm, toxins, proteases, immune evasion strategies and antibiotic resistance mechanisms is surveyed, together with current and future approaches for improved therapeutic interventions.
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Affiliation(s)
- Órla Burke
- Microbiology, School of Biological and Chemical Sciences, University of Galway, Galway, Ireland
| | | | - James P O'Gara
- Microbiology, School of Biological and Chemical Sciences, University of Galway, Galway, Ireland
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Cepeda JG, Perona FL, Sanchez IB, Calvo JC, Rico A, Loeches B. Case report: Prosthetic aortic valve endocarditis due to Staphylococcus epidermidis with acquired resistance in the walK gene. Diagn Microbiol Infect Dis 2024; 108:116132. [PMID: 38056190 DOI: 10.1016/j.diagmicrobio.2023.116132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 10/29/2023] [Accepted: 11/10/2023] [Indexed: 12/08/2023]
Abstract
We report the case of a patient with infective endocarditis on a prosthetic aortic valve due to Staphylococcus epidermidis, not a candidate for prosthetic replacement surgery. After three months of supressive treatment with dalbavancin, fever reappears, with growth of S. epidermidis. Susceptibility testing showed new-onset resistance to dalbavancin, with a mutation in walK gene.
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Affiliation(s)
- Javier Gonzalez Cepeda
- Internal Medicine, La Paz University Hospital. Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFECC), P.° de la Castellana, 261, 28046 Madrid, Spain.
| | - Fernando Lázaro Perona
- Microbiology, La Paz University Hospital. Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFECC), P.° de la Castellana, 261, 28046 Madrid, Spain
| | - Ivan Bloise Sanchez
- Microbiology, La Paz University Hospital. Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFECC), P.° de la Castellana, 261, 28046 Madrid, Spain
| | - Juana Cacho Calvo
- Microbiology, La Paz University Hospital. Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFECC), P.° de la Castellana, 261, 28046 Madrid, Spain
| | - Alicia Rico
- Clinical Microbiology and Infectious Diseases Unit. La Paz University Hospital. Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFECC), P.° de la Castellana, 261, 28046 Madrid, Spain
| | - Belen Loeches
- Clinical Microbiology and Infectious Diseases Unit. La Paz University Hospital. Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFECC), P.° de la Castellana, 261, 28046 Madrid, Spain
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Tebano G, Zaghi I, Baldasso F, Calgarini C, Capozzi R, Salvadori C, Cricca M, Cristini F. Antibiotic Resistance to Molecules Commonly Prescribed for the Treatment of Antibiotic-Resistant Gram-Positive Pathogens: What Is Relevant for the Clinician? Pathogens 2024; 13:88. [PMID: 38276161 PMCID: PMC10819222 DOI: 10.3390/pathogens13010088] [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: 12/04/2023] [Revised: 01/13/2024] [Accepted: 01/15/2024] [Indexed: 01/27/2024] Open
Abstract
Antibiotic resistance in Gram-positive pathogens is a relevant concern, particularly in the hospital setting. Several antibiotics are now available to treat these drug-resistant pathogens, such as daptomycin, dalbavancin, linezolid, tedizolid, ceftaroline, ceftobiprole, and fosfomycin. However, antibiotic resistance can also affect these newer molecules. Overall, this is not a frequent phenomenon, but it is a growing concern in some settings and can compromise the effectiveness of these molecules, leaving few therapeutic options. We reviewed the available evidence about the epidemiology of antibiotic resistance to these antibiotics and the main molecular mechanisms of resistance, particularly methicillin-resistant Sthaphylococcus aureus, methicillin-resistant coagulase-negative staphylococci, vancomycin-resistant Enterococcus faecium, and penicillin-resistant Streptococcus pneumoniae. We discussed the interpretation of susceptibility tests when minimum inhibitory concentrations are not available. We focused on the risk of the emergence of resistance during treatment, particularly for daptomycin and fosfomycin, and we discussed the strategies that can be implemented to reduce this phenomenon, which can lead to clinical failure despite appropriate antibiotic treatment. The judicious use of antibiotics, epidemiological surveillance, and infection control measures is essential to preserving the efficacy of these drugs.
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Affiliation(s)
- Gianpiero Tebano
- Infectious Diseases Unit, AUSL Romagna, Ravenna Hospital, 48121 Ravenna, Italy; (I.Z.); (C.C.); (C.S.)
| | - Irene Zaghi
- Infectious Diseases Unit, AUSL Romagna, Ravenna Hospital, 48121 Ravenna, Italy; (I.Z.); (C.C.); (C.S.)
- Unit of Microbiology, The Greater Romagna Area Hub Laboratory, 47522 Cesena, Italy;
| | - Francesco Baldasso
- Infectious Diseases Unit, AUSL Romagna, Forlì and Cesena Hospitals, 47121 Forlì and Cesena, Italy; (F.B.); (R.C.); (F.C.)
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy
| | - Chiara Calgarini
- Infectious Diseases Unit, AUSL Romagna, Ravenna Hospital, 48121 Ravenna, Italy; (I.Z.); (C.C.); (C.S.)
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy
| | - Roberta Capozzi
- Infectious Diseases Unit, AUSL Romagna, Forlì and Cesena Hospitals, 47121 Forlì and Cesena, Italy; (F.B.); (R.C.); (F.C.)
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy
| | - Caterina Salvadori
- Infectious Diseases Unit, AUSL Romagna, Ravenna Hospital, 48121 Ravenna, Italy; (I.Z.); (C.C.); (C.S.)
| | - Monica Cricca
- Unit of Microbiology, The Greater Romagna Area Hub Laboratory, 47522 Cesena, Italy;
- Department of Medical and Surgical Sciences (DIMEC), Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy
| | - Francesco Cristini
- Infectious Diseases Unit, AUSL Romagna, Forlì and Cesena Hospitals, 47121 Forlì and Cesena, Italy; (F.B.); (R.C.); (F.C.)
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Senneville E, Cuervo G, Gregoire M, Hidalgo-Tenorio C, Jehl F, Miro JM, Seaton A, Söderquist B, Soriano A, Thalhammer F, Pea F. Expert Opinion on Dose Regimen and Therapeutic Drug Monitoring for Long-Term Use of Dalbavancin: Expert Review Panel. Int J Antimicrob Agents 2023; 62:106960. [PMID: 37633424 DOI: 10.1016/j.ijantimicag.2023.106960] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/08/2023] [Accepted: 08/18/2023] [Indexed: 08/28/2023]
Abstract
BACKGROUND Dalbavancin is a lipoglycopeptide with a long elimination half-life and is currently licensed for the treatment of acute bacterial skin and skin structure infections in adults. Dalbavancin's potential in treating off-label complex Gram-positive infections is promising and real-world experience in treating such infections is growing. However, clear guidance on extended dosing regimens is lacking. OBJECTIVES This study aimed to provide clear expert opinion based on recent pharmacokinetic literature and expert and real-world experience in infection areas that require > 2 weeks of treatment. METHODS A single face-to-face meeting was held in September 2022 to collate expert opinion and present safety data of dalbavancin use in these clinical indications. A survey was completed by all authors on their individual experience with dalbavancin, which highlighted the heterogeneity in the regimens that were used. RESULTS After review of the survey data and recent literature, this study presents expert panel proposals that accommodate different healthcare settings and resource availability, and centre around the length of treatment duration including up to or exceeding 6 weeks. To achieve adequate dalbavancin concentrations for up to 6 weeks, 3000 mg of dalbavancin should be given over 4 weeks for the agreed complex infections requiring > 2 weeks of treatment. Therapeutic drug monitoring (TDM) is advised for longer treatment durations and in cases of renal failure. Specific dosing recommendations for other special populations require further investigation. CONCLUSIONS These proposals based on expert opinion have been defined to encourage best practice with dalbavancin, to optimise its administration beyond the current approved licenced dose across different healthcare settings.
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Affiliation(s)
- Eric Senneville
- Infectious Diseases department, Gustave Dron Hospital, University of Lille, Tourcoing, France.
| | - Guillermo Cuervo
- Department of Infectious Diseases, Hospital Clinic of Barcelona - IDIBAPS, University of Barcelona, Barcelona, Spain
| | - Matthieu Gregoire
- Nantes Université, CHU Nantes, Service de Pharmacologie Clinique, Nantes, France; Nantes Université, CHU Nantes, Cibles et médicaments des infections et de l'immunité, IICiMed, Nantes, France
| | - Carmen Hidalgo-Tenorio
- Infectious Diseases Unit, Hospital Universitario Virgen de las Nieves, Granada, Spain; Instituto de Investigación Biosanitario de Granada (IBS-Granada), Granada, Spain
| | - François Jehl
- Laboratory of Clinical Microbiology, University Hospital of Strasbourg, Strasbourg, France
| | - Jose M Miro
- Department of Infectious Diseases, Hospital Clinic of Barcelona - IDIBAPS, University of Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | - Andrew Seaton
- Infectious Diseases, NHS Greater Glasgow and Clyde, Glasgow, United Kingdom
| | - Bo Söderquist
- School of Medical Sciences, Faculty of Medicine, and Health, Örebro University, Örebro, Sweden; Department of Infectious Diseases and Laboratory Medicine, Clinical Microbiology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Alex Soriano
- Department of Infectious Diseases, Clinic of Barcelona, University of Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | | | - Federico Pea
- Department of Medical and Surgical Sciences, Alma Mater Studiorum, University of Bologna, Italy; Clinical Pharmacology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
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