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Spoelstra GB, Blok SN, Reali Nazario L, Noord L, Fu Y, Simeth NA, IJpma FFA, van Oosten M, van Dijl JM, Feringa BL, Szymanski W, Elsinga PH. Synthesis and preclinical evaluation of novel 18F-vancomycin-based tracers for the detection of bacterial infections using positron emission tomography. Eur J Nucl Med Mol Imaging 2024:10.1007/s00259-024-06717-7. [PMID: 38644432 DOI: 10.1007/s00259-024-06717-7] [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: 01/18/2024] [Accepted: 04/14/2024] [Indexed: 04/23/2024]
Abstract
INTRODUCTION Bacterial infections are a major problem in medicine, and the rapid and accurate detection of such infections is essential for optimal patient outcome. Bacterial infections can be diagnosed by nuclear imaging, but most currently available modalities are unable to discriminate infection from sterile inflammation. Bacteria-targeted positron emission tomography (PET) tracers have the potential to overcome this hurdle. In the present study, we compared three 18F-labelled PET tracers based on the clinically applied antibiotic vancomycin for targeted imaging of Gram-positive bacteria. METHODS [18F]FB-NHS and [18F]BODIPY-FL-NHS were conjugated to vancomycin. The resulting conjugates, together with our previously developed [18F]PQ-VE1-vancomycin, were tested for stability, lipophilicity, selective binding to Gram-positive bacteria, antimicrobial activity and biodistribution. For the first time, the pharmacokinetic properties of all three tracers were compared in healthy animals to identify potential binding sites. RESULTS [18F]FB-vancomycin, [18F]BODIPY-FL-vancomycin, and [18F]PQ-VE1-vancomycin were successfully synthesized with radiochemical yields of 11.7%, 2.6%, and 0.8%, respectively. [18F]FB-vancomycin exhibited poor in vitro and in vivo stability and, accordingly, no bacterial binding. In contrast, [18F]BODIPY-FL-vancomycin and [18F]PQ-VE1-vancomycin showed strong and specific binding to Gram-positive bacteria, including methicillin-resistant Staphylococcus aureus (MRSA), which was outcompeted by unlabeled vancomycin only at concentrations exceeding clinically relevant vancomycin blood levels. Biodistribution showed renal clearance of [18F]PQ-VE1-vancomycin and [18F]BODIPY-FL-vancomycin with low non-specific accumulation in muscles, fat and bones. CONCLUSION Here we present the synthesis and first evaluation of the vancomycin-based PET tracers [18F]BODIPY-FL-vancomycin and [18F]PQ-VE1-vancomycin for image-guided detection of Gram-positive bacteria. Our study paves the way towards real-time bacteria-targeted diagnosis of soft tissue and implant-associated infections that are oftentimes caused by Gram-positive bacteria, even after prophylactic treatment with vancomycin.
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Affiliation(s)
- G B Spoelstra
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9713GZ, The Netherlands
| | - S N Blok
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9713GZ, The Netherlands
| | - L Reali Nazario
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9713GZ, The Netherlands
| | - L Noord
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9713GZ, The Netherlands
| | - Y Fu
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, Groningen, 9747AG, The Netherlands
| | - N A Simeth
- Institute for Organic and Biomolecular Chemistry, Department of Chemistry, University of Göttingen, Tammannstraβe 2, 37077, Göttingen, Germany
| | - F F A IJpma
- Department of Trauma Surgery, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9713GZ, The Netherlands
| | - M van Oosten
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9713GZ, The Netherlands
| | - J M van Dijl
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9713GZ, The Netherlands
| | - B L Feringa
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 7, Groningen, 9747AG, The Netherlands
| | - W Szymanski
- Department of Radiology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9713GZ, The Netherlands
- Department of Medicinal Chemistry, Photopharmacology and Imaging, University of Groningen, Groningen Research Institute of Pharmacy, Antonius Deusinglaan 1, Groningen, 9713AV, The Netherlands
| | - P H Elsinga
- Department of Nuclear Medicine and Molecular Imaging, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, 9713GZ, The Netherlands.
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Akaraphanth M, Nordgren TM, Gries CM. CXCR2 perturbation promotes Staphylococcus aureus implant-associated infection. J Med Microbiol 2024; 73:001821. [PMID: 38567642 PMCID: PMC11084549 DOI: 10.1099/jmm.0.001821] [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: 11/01/2023] [Accepted: 03/12/2024] [Indexed: 04/04/2024] Open
Abstract
Introduction. Staphylococcus aureus is the leading cause of acute medical implant infections, representing a significant modern medical concern. The success of S. aureus as a pathogen in these cases resides in its arsenal of virulence factors, resistance to multiple antimicrobials, mechanisms of immune modulation, and ability to rapidly form biofilms associated with implant surfaces. S. aureus device-associated, biofilm-mediated infections are often persistent and notoriously difficult to treat, skewing innate immune responses to promote chronic reoccurring infections. While relatively little is known of the role neutrophils play in response to acute S. aureus biofilm infections, these effector cells must be efficiently recruited to sites of infection via directed chemotaxis. Here we investigate the effects of modulating CXC chemokine receptor 2 (CXCR2) activity, predominantly expressed on neutrophils, during S. aureus implant-associated infection.Hypothesis. We hypothesize that modulation of CXCR2 expression and/or signalling activities during S. aureus infection, and thus neutrophil recruitment, extravasation and antimicrobial activity, will affect infection control and bacterial burdens in a mouse model of implant-associated infection.Aim. This investigation aims to elucidate the impact of altered CXCR2 activity during S. aureus biofilm-mediated infection that may help develop a framework for an effective novel strategy to prevent morbidity and mortality associated with implant infections.Methodology. To examine the role of CXCR2 during S. aureus implant infection, we employed a mouse model of indwelling subcutaneous catheter infection using a community-associated methicillin-resistant S. aureus (MRSA) strain. To assess the role of CXCR2 induction or inhibition during infection, treatment groups received daily intraperitoneal doses of either Lipocalin-2 (Lcn2) or AZD5069, respectively. At the end of the study, catheters and surrounding soft tissues were analysed for bacterial burdens and dissemination, and Cxcr2 transcription within the implant-associated tissues was quantified.Results. Mice treated with Lcn2 developed higher bacterial burdens within the soft tissue surrounding the implant site, which was associated with increased Cxcr2 expression. AZD5069 treatment also resulted in increased implant- and tissues-associated bacterial titres, as well as enhanced Cxcr2 expression.Conclusion. Our results demonstrate that CXCR2 plays an essential role in regulating the severity of S. aureus implant-associated infections. Interestingly, however, perturbation of CXCR2 expression or signalling both resulted in enhanced Cxcr2 transcription and elevated implant-associated bacterial burdens. Thus, CXCR2 appears finely tuned to efficiently recruit effector cells and mediate control of S. aureus biofilm-mediated infection.
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Affiliation(s)
- Mike Akaraphanth
- School of Medicine, University of Colorado, Aurora CO 80045, USA
| | - Tara M. Nordgren
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins CO 80523, USA
| | - Casey M. Gries
- Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins CO 80523, USA
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Schoenmakers JWA, López-Álvarez M, IJpma FFA, Wouthuyzen-Bakker M, McNamara JO, van Oosten M, Jutte PC, van Dijl JM. A fluorogenic micrococcal nuclease-based probe for fast detection and optical imaging of Staphylococcus aureus in prosthetic joint and fracture-related infections. Eur J Nucl Med Mol Imaging 2023:10.1007/s00259-023-06499-4. [PMID: 37962617 DOI: 10.1007/s00259-023-06499-4] [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: 04/17/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023]
Abstract
PURPOSE Staphylococcus aureus is the most common and impactful multi-drug resistant pathogen implicated in (periprosthetic) joint infections (PJI) and fracture-related infections (FRI). Therefore, the present proof-of-principle study was aimed at the rapid detection of S. aureus in synovial fluids and biofilms on extracted osteosynthesis materials through bacteria-targeted fluorescence imaging with the 'smart-activatable' DNA-based AttoPolyT probe. This fluorogenic oligonucleotide probe yields large fluorescence increases upon cleavage by micrococcal nuclease, an enzyme secreted by S. aureus. METHODS Synovial fluids from patients with suspected PJI and extracted osteosynthesis materials from trauma patients with suspected FRI were inspected for S. aureus nuclease activity with the AttoPolyT probe. Biofilms on osteosynthesis materials were imaged with the AttoPolyT probe and a vancomycin-IRDye800CW conjugate (vanco-800CW) specific for Gram-positive bacteria. RESULTS 38 synovial fluid samples were collected and analyzed. Significantly higher fluorescence levels were measured for S. aureus-positive samples compared to, respectively, other Gram-positive bacterial pathogens (p < 0.0001), Gram-negative bacterial pathogens (p = 0.0038) and non-infected samples (p = 0.0030), allowing a diagnosis of S. aureus-associated PJI within 2 h. Importantly, S. aureus-associated biofilms on extracted osteosynthesis materials from patients with FRI were accurately imaged with the AttoPolyT probe, allowing their correct distinction from biofilms formed by other Gram-positive bacteria detected with vanco-800CW within 15 min. CONCLUSION The present study highlights the potential clinical value of the AttoPolyT probe for fast and accurate detection of S. aureus infection in synovial fluids and biofilms on extracted osteosynthesis materials.
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Affiliation(s)
- Jorrit W A Schoenmakers
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen (UMCG), Hanzeplein 1, 9700RB, Groningen, The Netherlands
- Department of Orthopaedics, University of Groningen, University Medical Center Groningen (UMCG), Groningen, The Netherlands
| | - Marina López-Álvarez
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen (UMCG), Hanzeplein 1, 9700RB, Groningen, The Netherlands
| | - Frank F A IJpma
- Department of Surgery, Division of Trauma Surgery, University of Groningen (UMCG), Groningen, The Netherlands
| | - Marjan Wouthuyzen-Bakker
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen (UMCG), Hanzeplein 1, 9700RB, Groningen, The Netherlands
| | | | - Marleen van Oosten
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen (UMCG), Hanzeplein 1, 9700RB, Groningen, The Netherlands
| | - Paul C Jutte
- Department of Orthopaedics, University of Groningen, University Medical Center Groningen (UMCG), Groningen, The Netherlands
| | - Jan Maarten van Dijl
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen (UMCG), Hanzeplein 1, 9700RB, Groningen, The Netherlands.
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Li P, Yin R, Cheng J, Lin J. Bacterial Biofilm Formation on Biomaterials and Approaches to Its Treatment and Prevention. Int J Mol Sci 2023; 24:11680. [PMID: 37511440 PMCID: PMC10380251 DOI: 10.3390/ijms241411680] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/13/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
Bacterial biofilms can cause widespread infection. In addition to causing urinary tract infections and pulmonary infections in patients with cystic fibrosis, biofilms can help microorganisms adhere to the surfaces of various medical devices, causing biofilm-associated infections on the surfaces of biomaterials such as venous ducts, joint prostheses, mechanical heart valves, and catheters. Biofilms provide a protective barrier for bacteria and provide resistance to antimicrobial agents, which increases the morbidity and mortality of patients. This review summarizes biofilm formation processes and resistance mechanisms, as well as the main features of clinically persistent infections caused by biofilms. Considering the various infections caused by clinical medical devices, we introduce two main methods to prevent and treat biomaterial-related biofilm infection: antibacterial coatings and the surface modification of biomaterials. Antibacterial coatings depend on the covalent immobilization of antimicrobial agents on the coating surface and drug release to prevent and combat infection, while the surface modification of biomaterials affects the adhesion behavior of cells on the surfaces of implants and the subsequent biofilm formation process by altering the physical and chemical properties of the implant material surface. The advantages of each strategy in terms of their antibacterial effect, biocompatibility, limitations, and application prospects are analyzed, providing ideas and research directions for the development of novel biofilm infection strategies related to therapeutic materials.
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Affiliation(s)
| | | | | | - Jinshui Lin
- Shaanxi Key Laboratory of Chinese Jujube, College of Life Sciences, Yan’an University, Yan’an 716000, China; (P.L.); (R.Y.); (J.C.)
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Roy PK, Ha AJW, Nahar S, Hossain MI, Ashrafudoulla M, Toushik SH, Mizan MFR, Kang I, Ha SD. Inhibitory effects of vorinostat (SAHA) against food-borne pathogen Salmonella enterica serotype Kentucky mixed culture biofilm with virulence and quorum-sensing relative expression. BIOFOULING 2023; 39:617-628. [PMID: 37580896 DOI: 10.1080/08927014.2023.2242263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 07/18/2023] [Accepted: 07/24/2023] [Indexed: 08/16/2023]
Abstract
Salmonella is a food-borne microorganism that is also a zoonotic bacterial hazard in the food sector. This study determined how well a mixed culture of Salmonella Kentucky formed biofilms on plastic (PLA), silicon rubber (SR), rubber gloves (RG), chicken skin and eggshell surfaces. In vitro interactions between the histone deacetylase inhibitor-vorinostat (SAHA)-and S. enterica serotype Kentucky were examined utilizing biofilms. The minimum inhibitory concentration (MIC) of SAHA was 120 µg mL-1. The addition of sub-MIC (60 µg mL-1) of SAHA decreased biofilm formation for 24 h on PLA, SR, RG, Chicken skin, and eggshell by 3.98, 3.84, 4.11, 2.86 and 3.01 log (p < 0.05), respectively. In addition, the initial rate of bacterial biofilm formation was higher on chicken skin than on other surfaces, but the inhibitory effect was reduced. Consistent with this conclusion, virulence genes expression (avrA, rpoS and hilA) and quorum-sensing (QS) gene (luxS) was considerably downregulated at sub-MIC of SAHA. SAHA has potential as an anti-biofilm agent against S. enterica serotype Kentucky biofilm, mostly by inhibiting virulence and quorum-sensing gene expression, proving the histone deacetylase inhibitor could be used to control food-borne biofilms in the food industry.
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Affiliation(s)
- Pantu Kumar Roy
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Gyeonggi-do, Republic of Korea
- Department of Seafood Science and Technology, Institute of Marine Industry, Gyeongsang National University, Tongyeong, Republic of Korea
| | - Angela Ji-Won Ha
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Gyeonggi-do, Republic of Korea
| | - Shamsun Nahar
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Gyeonggi-do, Republic of Korea
| | - Md Iqbal Hossain
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Gyeonggi-do, Republic of Korea
| | - Md Ashrafudoulla
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Gyeonggi-do, Republic of Korea
| | - Sazzad Hossen Toushik
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Gyeonggi-do, Republic of Korea
| | - Md Furkanur Rahaman Mizan
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Gyeonggi-do, Republic of Korea
| | - Iksoon Kang
- Department of Animal Science, College of Agriculture, Food and Environmental Science, CA Polytechnic State University, San Luis Obispo, California, USA
| | - Sang-Do Ha
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Gyeonggi-do, Republic of Korea
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Maimaiti Z, Li Z, Xu C, Fu J, Hao LB, Chen JY, Chai W. Host Immune Regulation in Implant-Associated Infection (IAI): What Does the Current Evidence Provide Us to Prevent or Treat IAI? Bioengineering (Basel) 2023; 10:bioengineering10030356. [PMID: 36978747 PMCID: PMC10044746 DOI: 10.3390/bioengineering10030356] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/25/2023] [Accepted: 03/03/2023] [Indexed: 03/17/2023] Open
Abstract
The number of orthopedic implants for bone fixation and joint arthroplasty has been steadily increasing over the past few years. However, implant-associated infection (IAI), a major complication in orthopedic surgery, impacts the quality of life and causes a substantial economic burden on patients and societies. While research and study on IAI have received increasing attention in recent years, the failure rate of IAI has still not decreased significantly. This is related to microbial biofilms and their inherent antibiotic resistance, as well as the various mechanisms by which bacteria evade host immunity, resulting in difficulties in diagnosing and treating IAIs. Hence, a better understanding of the complex interactions between biofilms, implants, and host immunity is necessary to develop new strategies for preventing and controlling these infections. This review first discusses the challenges in diagnosing and treating IAI, followed by an extensive review of the direct effects of orthopedic implants, host immune function, pathogenic bacteria, and biofilms. Finally, several promising preventive or therapeutic alternatives are presented, with the hope of mitigating or eliminating the threat of antibiotic resistance and refractory biofilms in IAI.
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Affiliation(s)
- Zulipikaer Maimaiti
- Department of Orthopaedics, The Fourth Medical Centre, Chinese PLA General Hospital, Beijing 100048, China
- Department of Orthopaedics, The First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
| | - Zhuo Li
- Department of Orthopaedics, The First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Chi Xu
- Department of Orthopaedics, The Fourth Medical Centre, Chinese PLA General Hospital, Beijing 100048, China
- Department of Orthopaedics, The First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
| | - Jun Fu
- Department of Orthopaedics, The Fourth Medical Centre, Chinese PLA General Hospital, Beijing 100048, China
- Department of Orthopaedics, The First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
| | - Li-Bo Hao
- Department of Orthopaedics, The Fourth Medical Centre, Chinese PLA General Hospital, Beijing 100048, China
- Department of Orthopaedics, The First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
| | - Ji-Ying Chen
- Department of Orthopaedics, The Fourth Medical Centre, Chinese PLA General Hospital, Beijing 100048, China
- Department of Orthopaedics, The First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
- Correspondence: (J.-Y.C.); (W.C.)
| | - Wei Chai
- Department of Orthopaedics, The Fourth Medical Centre, Chinese PLA General Hospital, Beijing 100048, China
- Department of Orthopaedics, The First Medical Centre, Chinese PLA General Hospital, Beijing 100853, China
- Correspondence: (J.-Y.C.); (W.C.)
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Merino-Gómez M, Gil J, Perez RA, Godoy-Gallardo M. Polydopamine Incorporation Enhances Cell Differentiation and Antibacterial Properties of 3D-Printed Guanosine-Borate Hydrogels for Functional Tissue Regeneration. Int J Mol Sci 2023; 24:ijms24044224. [PMID: 36835636 PMCID: PMC9964593 DOI: 10.3390/ijms24044224] [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: 01/01/2023] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 02/22/2023] Open
Abstract
Tissue engineering focuses on the development of materials as biosubstitutes that can be used to regenerate, repair, or replace damaged tissues. Alongside this, 3D printing has emerged as a promising technique for producing implants tailored to specific defects, which in turn increased the demand for new inks and bioinks. Especially supramolecular hydrogels based on nucleosides such as guanosine have gained increasing attention due to their biocompatibility, good mechanical characteristics, tunable and reversible properties, and intrinsic self-healing capabilities. However, most existing formulations exhibit insufficient stability, biological activity, or printability. To address these limitations, we incorporated polydopamine (PDA) into guanosine-borate (GB) hydrogels and developed a PGB hydrogel with maximal PDA incorporation and good thixotropic and printability qualities. The resulting PGB hydrogels exhibited a well-defined nanofibrillar network, and we found that PDA incorporation increased the hydrogel's osteogenic activity while having no negative effect on mammalian cell survival or migration. In contrast, antimicrobial activity was observed against the Gram-positive bacteria Staphylococcus aureus and Staphylococcus epidermidis. Thus, our findings suggest that our PGB hydrogel represents a significantly improved candidate as a 3D-printed scaffold capable of sustaining living cells, which may be further functionalized by incorporating other bioactive molecules for enhanced tissue integration.
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Affiliation(s)
- Maria Merino-Gómez
- Bioengineering Institute of Technology (BIT), International University of Catalonia (UIC), Carrer de Josep Trueta, Sant Cugat del Vallès, 08195 Barcelona, Spain
| | - Javier Gil
- Bioengineering Institute of Technology (BIT), International University of Catalonia (UIC), Carrer de Josep Trueta, Sant Cugat del Vallès, 08195 Barcelona, Spain
- Department of Dentistry, Faculty of Dentistry, International University of Catalonia (UIC), Carrer de Josep Trueta, Sant Cugat del Vallès, 08195 Barcelona, Spain
| | - Roman A. Perez
- Bioengineering Institute of Technology (BIT), International University of Catalonia (UIC), Carrer de Josep Trueta, Sant Cugat del Vallès, 08195 Barcelona, Spain
- Correspondence: (R.A.P.); (M.G.-G.); Tel.: +34-935-042-000 (ext. 5826) (R.A.P. & M.G.-G.)
| | - Maria Godoy-Gallardo
- Bioengineering Institute of Technology (BIT), International University of Catalonia (UIC), Carrer de Josep Trueta, Sant Cugat del Vallès, 08195 Barcelona, Spain
- Correspondence: (R.A.P.); (M.G.-G.); Tel.: +34-935-042-000 (ext. 5826) (R.A.P. & M.G.-G.)
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Schoenmakers JWA, de Boer R, Gard L, Kampinga GA, van Oosten M, van Dijl JM, Jutte PC, Wouthuyzen-Bakker M. First evaluation of a commercial multiplex PCR panel for rapid detection of pathogens associated with acute joint infections. J Bone Jt Infect 2023; 8:45-50. [PMID: 36756306 PMCID: PMC9901515 DOI: 10.5194/jbji-8-45-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 12/23/2022] [Indexed: 01/19/2023] Open
Abstract
Background: prompt recognition and identification of the causative microorganism in acute septic arthritis of native and prosthetic joints is vital to increase the chances of successful treatment. The aim of this study was to independently assess the diagnostic accuracy of the multiplex BIOFIRE® Joint Infection (JI) Panel (investigational use only) in synovial fluid for rapid diagnosis. Methods: synovial fluid samples were collected at the University Medical Center Groningen from patients who had a clinical suspicion of a native septic arthritis, early acute (post-operative, within 3 months after arthroplasty) periprosthetic joint infection (PJI) or late acute (hematogenous, ≥ 3 months after arthroplasty) PJI. JI Panel results were compared to infection according to Musculoskeletal Infection Society criteria and culture-based methods as reference standard. Results: a total of 45 samples were analysed. The BIOFIRE JI Panel showed a high specificity (100 %, 95 % confidence interval (CI): 78-100) in all patient categories. Sensitivity was 83 % (95 % CI: 44-97) for patients with a clinical suspicion of native septic arthritis ( n = 12 ), 73 % (95 % CI: 48-89) for patients with a clinical suspicion of a late acute PJI ( n = 14 ), and 30 % (95 % CI: 11-60) for patients with a clinical suspicion of an early acute PJI ( n = 19 ). Conclusion: the results of this study indicate a clear clinical benefit of the BIOFIRE JI Panel in patients with a suspected native septic arthritis and late acute (hematogenous) PJI, but a low clinical benefit in patients with an early acute (post-operative) PJI due to the absence of certain relevant microorganisms, such as Staphylococcus epidermidis, from the panel.
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Affiliation(s)
- Jorrit Willem Adriaan Schoenmakers
- Department of Orthopaedic Surgery, University of Groningen,
University Medical Center Groningen (UMCG), Groningen, The Netherlands,Department of Medical Microbiology and Infection Prevention,
University of Groningen, UMCG, Groningen, The Netherlands
| | - Rosanne de Boer
- Department of Medical Microbiology and Infection Prevention,
University of Groningen, UMCG, Groningen, The Netherlands
| | - Lilli Gard
- Department of Medical Microbiology and Infection Prevention,
University of Groningen, UMCG, Groningen, The Netherlands
| | - Greetje Anna Kampinga
- Department of Medical Microbiology and Infection Prevention,
University of Groningen, UMCG, Groningen, The Netherlands
| | - Marleen van Oosten
- Department of Medical Microbiology and Infection Prevention,
University of Groningen, UMCG, Groningen, The Netherlands
| | - Jan Maarten van Dijl
- Department of Medical Microbiology and Infection Prevention,
University of Groningen, UMCG, Groningen, The Netherlands
| | - Paulus Christiaan Jutte
- Department of Orthopaedic Surgery, University of Groningen,
University Medical Center Groningen (UMCG), Groningen, The Netherlands
| | - Marjan Wouthuyzen-Bakker
- Department of Medical Microbiology and Infection Prevention,
University of Groningen, UMCG, Groningen, The Netherlands
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Jensen N, Jensen HE, Aalbaek B, Blirup-Plum SA, Soto SM, Cepas V, López Y, Gabasa Y, Gutiérrez-del-Río I, Villar CJ, Lombó F, Iglesias MJ, Soengas R, López Ortiz F, Jensen LK. Synthesis of the cyanobacterial halometabolite Chlorosphaerolactylate B and demonstration of its antimicrobial effect in vitro and in vivo. Front Microbiol 2022; 13:950855. [PMID: 36246241 PMCID: PMC9557163 DOI: 10.3389/fmicb.2022.950855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 08/18/2022] [Indexed: 12/02/2022] Open
Abstract
Chlorosphaerolactylate B, a newly discovered antimicrobial halometabolite from the cyanobacterium Sphaerospermopsis sp. LEGE 00249 has been synthesized in three steps by using 12-bromododecanoic acid as starting material. A total of 0.5 g was produced for in vitro and in vivo antimicrobial efficacy testing. In vitro, the minimal inhibitory concentration (MIC) was estimated to be 256 mg/L for Staphylococcus aureus, while the minimal biofilm inhibitory concentration (MBIC) was estimated to be 74 mg/L. The in vivo study utilized a porcine model of implant-associated osteomyelitis. In total, 12 female pigs were allocated into 3 groups based on inoculum (n = 4 in each group). An implant cavity (IC) was drilled in the right tibia and followed by inoculation and insertion of a steel implant. All pigs were inoculated with 10 μL containing either: 11.79 mg synthetic Chlorosphaerolactylate B + 104 CFU of S. aureus (Group A), 104 CFU of S. aureus (Group B), or pure saline (Group C), respectively. Pigs were euthanized five days after inoculation. All Group B animals showed macroscopic and microscopic signs of bone infection and both tissue and implant harbored S. aureus bacteria (mean CFU on implants = 1.9 × 105). In contrast, S. aureus could not be isolated from animals inoculated with saline. In Group A, two animals had a low number of S. aureus (CFU = 6.7 × 101 and 3.8 × 101, respectively) on the implants, otherwise all Group A animals were similar to Group C animals. In conclusion, synthetic Chlorosphaerolactylate B holds potential to be a novel antimicrobial and antibiofilm compound.
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Affiliation(s)
- Nikoline Jensen
- Section for Pathobiological Sciences, Department of Veterinary and Animal Science, University of Copenhagen, Copenhagen, Denmark
| | - Henrik Elvang Jensen
- Section for Pathobiological Sciences, Department of Veterinary and Animal Science, University of Copenhagen, Copenhagen, Denmark
| | - Bent Aalbaek
- Section for Pathobiological Sciences, Department of Veterinary and Animal Science, University of Copenhagen, Copenhagen, Denmark
| | - Sophie Amalie Blirup-Plum
- Section for Pathobiological Sciences, Department of Veterinary and Animal Science, University of Copenhagen, Copenhagen, Denmark
| | - Sara M. Soto
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
- CIBER Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | - Virginio Cepas
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Yuly López
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Yaiza Gabasa
- ISGlobal, Hospital Clínic, Universitat de Barcelona, Barcelona, Spain
| | - Ignacio Gutiérrez-del-Río
- Biotechnology in Nutraceuticals and Bioactive Compounds-BIONUC, Department of Functional Biology, University of Oviedo, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
| | - Claudio J. Villar
- Biotechnology in Nutraceuticals and Bioactive Compounds-BIONUC, Department of Functional Biology, University of Oviedo, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
| | - Felipe Lombó
- Biotechnology in Nutraceuticals and Bioactive Compounds-BIONUC, Department of Functional Biology, University of Oviedo, Oviedo, Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
| | - María José Iglesias
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
| | - Raquel Soengas
- Área de Química Orgánica, Centro de Investigación CIAIMBITAL, Universidad de Almería, Almería, Spain
| | - Fernando López Ortiz
- Área de Química Orgánica, Centro de Investigación CIAIMBITAL, Universidad de Almería, Almería, Spain
- *Correspondence: Fernando López Ortiz,
| | - Louise Kruse Jensen
- Section for Pathobiological Sciences, Department of Veterinary and Animal Science, University of Copenhagen, Copenhagen, Denmark
- Louise Kruse Jensen,
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10
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du Teil Espina M, Haider Rubio A, Fu Y, López-Álvarez M, Gabarrini G, van Dijl JM. Outer membrane vesicles of the oral pathogen Porphyromonas gingivalis promote aggregation and phagocytosis of Staphylococcus aureus. FRONTIERS IN ORAL HEALTH 2022; 3:948524. [PMID: 35937774 PMCID: PMC9354530 DOI: 10.3389/froh.2022.948524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 06/30/2022] [Indexed: 12/21/2022] Open
Abstract
Staphylococcus aureus is an opportunistic Gram-positive bacterial pathogen that causes a wide variety of infectious diseases, including S. aureus bacteremia (SAB). Recent studies showed that rheumatoid arthritis (RA) is a risk factor for SAB, as RA patients appear to be more susceptible to SAB and display higher degrees of disease severity or complications, such as osteoarticular infections. On the other hand, Porphyromonas gingivalis is a Gram-negative bacterial oral pathogen, which is notable for its implication in the etiopathogenesis of RA due to its unique citrullinating enzyme PPAD and its highly effective proteases, known as gingipains. Both PPAD and gingipains are abundant in P. gingivalis outer membrane vesicles (OMVs), which are secreted nanostructures that originate from the outer membrane. Here we show that P. gingivalis OMVs cause the aggregation of S. aureus bacteria in a gingipain- and PPAD-dependent fashion, and that this aggregation phenotype is reversible. Importantly, we also show that the exposure of S. aureus to OMVs of P. gingivalis promotes the staphylococcal internalization by human neutrophils with no detectable neutrophil killing. Altogether, our observations suggest that P. gingivalis can eliminate its potential competitor S. aureus by promoting staphylococcal aggregation and the subsequent internalization by neutrophils. We hypothesize that this phenomenon may have repercussions for the host, since immune cells with internalized bacteria may facilitate bacterial translocation to the blood stream, which could potentially contribute to the association between RA and SAB.
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Affiliation(s)
- Marines du Teil Espina
- Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Anna Haider Rubio
- Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Yanyan Fu
- Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Marina López-Álvarez
- Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Giorgio Gabarrini
- Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Jan Maarten van Dijl
- Department of Medical Microbiology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
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