1
|
Tsivelekas K, Lykos S, Pallis D, Ampadiotaki MM, Nikolakakos P, Tilentzoglou A, Papadakis SA. Delayed onset of Corynebacterium simulans infection following open reduction and internal fixation of a trimalleolar fracture. J Surg Case Rep 2024; 2024:rjae334. [PMID: 38803842 PMCID: PMC11129711 DOI: 10.1093/jscr/rjae334] [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: 02/07/2024] [Accepted: 05/01/2024] [Indexed: 05/29/2024] Open
Abstract
Surgical site infections (SSIs) following open reduction and internal fixation (ORIF) of ankle fractures can lead to significant disability. This case report emphasizes a unique instance of SSI caused by Corynebacterium simulans, following ORIF of a trimalleolar ankle fracture in a 55-year-old female patient. To our knowledge, this is the first reported case of C. simulans infection after ORIF in the literature. The pathogen was detected after surgical debridement, removal and sonication of the hardware, and identified through matrix assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS) and 16S rRNA gene sequencing. Specific intravenous antibiotic regimen was administered for a total duration of 4 weeks. During the 12th month follow-up, the patient presented no signs of infection and an excellent clinical outcome. This case report underscores the need for alertness regarding atypical pathogens in postoperative complications and the critical role of precise microbial diagnosis in managing rare orthopaedic infections.
Collapse
Affiliation(s)
| | - Stavros Lykos
- B' Department of Orthopaedics, KAT General Hospital of Athens, Nikis 2 str. 15124, Greece
| | - Dimitrios Pallis
- B' Department of Orthopaedics, KAT General Hospital of Athens, Nikis 2 str. 15124, Greece
| | | | - Petros Nikolakakos
- B' Department of Orthopaedics, KAT General Hospital of Athens, Nikis 2 str. 15124, Greece
| | - Anastasia Tilentzoglou
- B' Department of Orthopaedics, KAT General Hospital of Athens, Nikis 2 str. 15124, Greece
| | - Stamatios A Papadakis
- B' Department of Orthopaedics, KAT General Hospital of Athens, Nikis 2 str. 15124, Greece
| |
Collapse
|
2
|
Gricajeva A, Buchovec I, Kalėdienė L, Badokas K, Vitta P. Evaluation of visible light and natural photosensitizers against Staphylococcus epidermidis and Staphylococcus saprophyticus planktonic cells and biofilm. Heliyon 2024; 10:e28811. [PMID: 38596007 PMCID: PMC11002230 DOI: 10.1016/j.heliyon.2024.e28811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 03/21/2024] [Accepted: 03/25/2024] [Indexed: 04/11/2024] Open
Abstract
Antimicrobial photoinactivation (API) has shown some promise in potentially treating different nosocomial bacterial infections, however, its application on staphylococci, especially other than Staphylococcus aureus or methicillin-resistant S. aureus (MRSA) species is still limited. Although S. aureus is a well-known and important nosocomial pathogen, several other species of the genus, particularly coagulase-negative Staphylococcus (CNS) species such as Staphylococcus epidermidis and Staphylococcus saprophyticus, can also cause healthcare-associated infections and foodborne intoxications. CNS are often involved in resilient biofilm formation on medical devices and can cause infections in patients with compromised immune systems or those undergoing invasive procedures. In this study, the effects of chlorophyllin and riboflavin-mediated API on S. epidermidis and S. saprophyticus planktonic cells and biofilm are demonstrated for the first time. Based on the residual growth determination and metabolic reduction ability changes, higher inactivating efficiency of chlorophyllin-mediated API was determined against the planktonic cells of both tested species of bacteria and against S. saprophyticus biofilm. Some insights on whether aqueous solutions of riboflavin and chlorophyllin, when illuminated with optimal exciting wavelength (440 nm and 402 nm, respectively) generate O2-•, are also provided in this work.
Collapse
Affiliation(s)
- Alisa Gricajeva
- Institute of Biosciences, Department of Microbiology and Biotechnology, Life Sciences Center, Vilnius University, Sauletekio avenue 7, LT-10257, Vilnius, Lithuania
| | - Irina Buchovec
- Institute of Photonics and Nanotechnology, Faculty of Physics, Sauletekio avenue 3, LT-10257, Vilnius University, Vilnius, Lithuania
| | - Lilija Kalėdienė
- Institute of Biosciences, Department of Microbiology and Biotechnology, Life Sciences Center, Vilnius University, Sauletekio avenue 7, LT-10257, Vilnius, Lithuania
| | - Kazimieras Badokas
- Institute of Photonics and Nanotechnology, Faculty of Physics, Sauletekio avenue 3, LT-10257, Vilnius University, Vilnius, Lithuania
| | - Pranciškus Vitta
- Institute of Photonics and Nanotechnology, Faculty of Physics, Sauletekio avenue 3, LT-10257, Vilnius University, Vilnius, Lithuania
| |
Collapse
|
3
|
Kispert S, Liguori M, Velikaneye C, Qiu C, Wang S, Zhang N, Gu H. Role of Staphylococcus aureus's Buoyant Density in the Development of Biofilm Associated Antibiotic Susceptibility. Microorganisms 2024; 12:759. [PMID: 38674703 PMCID: PMC11052065 DOI: 10.3390/microorganisms12040759] [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: 03/12/2024] [Revised: 04/05/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
Biofilms are clusters of microorganisms that form at various interfaces, including those between air and liquid or liquid and solid. Due to their roles in enhancing wastewater treatment processes, and their unfortunate propensity to cause persistent human infections through lowering antibiotic susceptibility, understanding and managing bacterial biofilms is of paramount importance. A pivotal stage in biofilm development is the initial bacterial attachment to these interfaces. However, the determinants of bacterial cell choice in colonizing an interface first and heterogeneity in bacterial adhesion remain elusive. Our research has unveiled variations in the buoyant density of free-swimming Staphylococcus aureus cells, irrespective of their growth phase. Cells with a low cell buoyant density, characterized by fewer cell contents, exhibited lower susceptibility to antibiotic treatments (100 μg/mL vancomycin) and favored biofilm formation at air-liquid interfaces. In contrast, cells with higher cell buoyant density, which have richer cell contents, were more vulnerable to antibiotics and predominantly formed biofilms on liquid-solid interfaces when contained upright. Cells with low cell buoyant density were not able to revert to a more antibiotic sensitive and high cell buoyant density phenotype. In essence, S. aureus cells with higher cell buoyant density may be more inclined to adhere to upright substrates.
Collapse
Affiliation(s)
- Sarah Kispert
- Department of Chemistry and Chemical Engineering & Biomedical Engineering, Tagliatela College of Engineering, University of New Haven, West Haven, CT 06516, USA
| | - Madison Liguori
- Department of Chemistry and Chemical Engineering & Biomedical Engineering, Tagliatela College of Engineering, University of New Haven, West Haven, CT 06516, USA
| | - Cody Velikaneye
- Department of Chemistry and Chemical Engineering & Biomedical Engineering, Tagliatela College of Engineering, University of New Haven, West Haven, CT 06516, USA
| | - Chong Qiu
- Department of Chemistry and Chemical Engineering & Biomedical Engineering, Tagliatela College of Engineering, University of New Haven, West Haven, CT 06516, USA
| | - Shue Wang
- Department of Chemistry and Chemical Engineering & Biomedical Engineering, Tagliatela College of Engineering, University of New Haven, West Haven, CT 06516, USA
| | - Nan Zhang
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases of Henan Province, Department of Pharmaceutics, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Huan Gu
- Department of Chemistry and Chemical Engineering & Biomedical Engineering, Tagliatela College of Engineering, University of New Haven, West Haven, CT 06516, USA
| |
Collapse
|
4
|
Ma Y, Chang X, Zhang S, Zhang P, Guo T, Zhang X, Kong Y, Ma S. New broad-spectrum and potent antibacterial agents with dual-targeting mechanism: Promoting FtsZ polymerization and disrupting bacterial membranes. Eur J Med Chem 2024; 263:115930. [PMID: 37950964 DOI: 10.1016/j.ejmech.2023.115930] [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: 09/24/2023] [Revised: 10/24/2023] [Accepted: 11/01/2023] [Indexed: 11/13/2023]
Abstract
The emergence of multidrug-resistant bacteria and the slow development of new antibacterial agents have led to a growing global health crisis. Here, we identified an antibacterial agent possessing 1-methyl-2,5-diphenylpyridin-1-ium core, MA220607, with a dual-targeting mechanism of action (MOA), which exhibited effective killing activity against both Gram-positive (MIC = 0.062-2 μg/mL) and Gram-negative bacteria (MIC = 0.5-4 μg/mL). Moreover, our study revealed that MA220607 could block the formation of bacterial biofilm, which might be the reason for low frequency of resistance. MOA studies showed that MA220607 not only promoted FtsZ protein polymerization, but also increased the permeability of bacterial membranes and altered their proton gradients. In addition, MA220607 had low hemolytic toxicity and could significantly inhibit the growth of bacteria in mice. Molecular dynamics simulations demonstrated that MA220607 could block the transition from the tense (T) to relaxed (R) state of FtsZ protein, thereby perturbing the stepping mechanism of FtsZ protein. Overall, our findings suggest that integrating the dual mechanisms targeting FtsZ protein and cell membranes of bacteria into a single scaffold represents a promising direction for the development of new antibacterial agents.
Collapse
Affiliation(s)
- Yangchun Ma
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine Shandong University, 44 West Wenhua Road, Jinan, Shandong, 250012, China
| | - Xiaohong Chang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine Shandong University, 44 West Wenhua Road, Jinan, Shandong, 250012, China
| | - Shenyan Zhang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine Shandong University, 44 West Wenhua Road, Jinan, Shandong, 250012, China
| | - Panpan Zhang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine Shandong University, 44 West Wenhua Road, Jinan, Shandong, 250012, China
| | - Ting Guo
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine Shandong University, 44 West Wenhua Road, Jinan, Shandong, 250012, China
| | - Xianghui Zhang
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine Shandong University, 44 West Wenhua Road, Jinan, Shandong, 250012, China
| | - Yue Kong
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine Shandong University, 44 West Wenhua Road, Jinan, Shandong, 250012, China
| | - Shutao Ma
- Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Cheeloo College of Medicine Shandong University, 44 West Wenhua Road, Jinan, Shandong, 250012, China.
| |
Collapse
|
5
|
Anjani QK, Pandya AK, Demartis S, Domínguez-Robles J, Moreno-Castellanos N, Li H, Gavini E, Patravale VB, Donnelly RF. Liposome-loaded polymeric microneedles for enhanced skin deposition of rifampicin. Int J Pharm 2023; 646:123446. [PMID: 37751787 DOI: 10.1016/j.ijpharm.2023.123446] [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: 07/27/2023] [Revised: 09/22/2023] [Accepted: 09/23/2023] [Indexed: 09/28/2023]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is a prevailing bacterial pathogen linked to superficial skin and soft tissue infections (SSTIs). Rifampicin (RIF), a potent antibiotic against systemic and localised staphylococcal infections, faces limitations due to its low solubility. This constraint hampers its therapeutic potential for MRSA-induced SSTIs. To address this, an advanced liposomal system was designed for efficient dermal RIF delivery. Rifampicin-loaded liposomes (LipoRIF) were embedded within polymeric dissolving microneedles (DMNs) to enable targeted intradermal drug delivery. A robust Design of Experiment (DoE) methodology guided the systematic preparation and optimisation of LipoRIF formulations. The optimal LipoRIF formulation integrated within polymeric DMNs. These LipoRIF-DMNs exhibited favourable mechanical properties and effective skin insertion characteristics. Notably, in vitro assays on skin deposition unveiled a transformative result - the DMN platform significantly enhanced LipoRIF deposition within the skin, surpassing LipoRIF dispersion alone. Moreover, LipoRIF-DMNs displayed minimal cytotoxicity toward cells. Encouragingly, rigorous in vitro antimicrobial evaluations demonstrated LipoRIF-DMNs' capacity to inhibit MRSA growth compared to the control group. LipoRIF-DMNs propose a potentially enhanced, minimally invasive approach to effectively manage SSTIs and superficial skin ailments stemming from MRSA infections.
Collapse
Affiliation(s)
- Qonita Kurnia Anjani
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK; Fakultas Farmasi, Universitas Megarezky, Jl. Antang Raya No. 43, Makassar 90234, Indonesia
| | - Anjali K Pandya
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK; Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai, Maharashtra 400 019, India
| | - Sara Demartis
- Department of Chemical, Physical, Mathematical and Natural Sciences, University of Sassari, Piazza Università 21, 07100 Sassari, Italy
| | - Juan Domínguez-Robles
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK; Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidad de Sevilla, 41012 Seville, Spain
| | - Natalia Moreno-Castellanos
- Basic Science Department, Faculty of Health, Universidad Industrial de Santander, Bucaramanga 680001, Colombia
| | - Huanhuan Li
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Elisabetta Gavini
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Piazza Università 21, Sassari 07100, Italy
| | - Vandana B Patravale
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai, Maharashtra 400 019, India
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK.
| |
Collapse
|
6
|
Baiardi G, Cameran Caviglia M, Piras F, Sacco F, Prinapori R, Cristina ML, Mattioli F, Sartini M, Pontali E. The Clinical Efficacy of Multidose Oritavancin: A Systematic Review. Antibiotics (Basel) 2023; 12:1498. [PMID: 37887199 PMCID: PMC10604328 DOI: 10.3390/antibiotics12101498] [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: 07/26/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 10/28/2023] Open
Abstract
Oritavancin (ORI) is a semisynthetic lipoglycopeptide approved as a single 1200 mg dose intravenous infusion for the treatment of acute bacterial skin and skin structure infections (ABSSSIs) caused by Gram-positive organisms in adults. The pharmacokinetic/pharmacodynamic (PK/PD) linear kinetic profile and long terminal half-life (~393 h) of ORI make it therapeutically attractive for the treatment of other Gram-positive infections for which prolonged therapy is needed. Multidose regimens are adopted in real-world clinical practice with promising results, but aggregated efficacy data are still lacking. A comprehensive search on PubMed/Medline, Scopus, Cochrane and Google Scholar databases was performed to include papers published up to the end of January 2023. All articles on ORI multiple doses usage, including case reports, with quantitative data and relevant clinical information were included. Two reviewers independently assessed papers against the inclusion/exclusion criteria and for methodological quality. Differences in opinion were adjudicated by a third party. From 1751 potentially relevant papers identified by this search, a total of 16 studies met the inclusion criteria and were processed further in the final data analysis. We extracted data concerning clinical response, bacteriologic response, mortality and adverse events (AEs). From the 16 included papers, 301 cases of treatment with multidose ORIs were identified. Multidose regimens comprised an initial ORI dose of 1200 mg followed by 1200 mg or 800 mg subsequent doses with a varying total number and frequency of reinfusions. The most often treated infections and isolates were osteomyelitis (148; 54.4%), ABSSSI (35; 12.9%) and cellulitis (14; 5.1%); and MRSA (121), MSSA (66), CoNS (17), E. faecalis (13) and E. faecium (12), respectively. Clinical cure and improvement by multidose ORI regimens were observed in 85% (231/272) and 8% (22/272) patients, respectively. Multidose ORI was safe and well tolerated; the most frequent AEs were infusion-related reactions and hypoglycemia. A multidose ORI regimen may be beneficial in treating other Gram-positive infections besides ABSSSIs, with a good safety profile. Further studies are warranted to ascertain the superiority of one multidose ORI scheme or posology over the other.
Collapse
Affiliation(s)
- Giammarco Baiardi
- Pharmacology and Toxicology Unit, Department of Internal Medicine, University of Genoa, 16132 Genoa, Italy; (G.B.); (M.C.C.); (F.P.); (F.S.)
- Clinical Pharmacology Unit, Ente Ospedaliero Ospedali Galliera, 16128 Genoa, Italy
| | - Michela Cameran Caviglia
- Pharmacology and Toxicology Unit, Department of Internal Medicine, University of Genoa, 16132 Genoa, Italy; (G.B.); (M.C.C.); (F.P.); (F.S.)
- Clinical Pharmacology Unit, Ente Ospedaliero Ospedali Galliera, 16128 Genoa, Italy
| | - Fabio Piras
- Pharmacology and Toxicology Unit, Department of Internal Medicine, University of Genoa, 16132 Genoa, Italy; (G.B.); (M.C.C.); (F.P.); (F.S.)
- Clinical Pharmacology Unit, Ente Ospedaliero Ospedali Galliera, 16128 Genoa, Italy
| | - Fabio Sacco
- Pharmacology and Toxicology Unit, Department of Internal Medicine, University of Genoa, 16132 Genoa, Italy; (G.B.); (M.C.C.); (F.P.); (F.S.)
- Clinical Pharmacology Unit, Ente Ospedaliero Ospedali Galliera, 16128 Genoa, Italy
| | - Roberta Prinapori
- Department of Infectious Diseases, Ente Ospedaliero Ospedali Galliera, 16128 Genoa, Italy; (R.P.); (E.P.)
| | - Maria Luisa Cristina
- Operating Unit Hospital Hygiene, Ente Ospedaliero Ospedali Galliera, 16128 Genoa, Italy; (M.L.C.); (M.S.)
- Department of Health Sciences, University of Genoa, 16132 Genoa, Italy
| | - Francesca Mattioli
- Pharmacology and Toxicology Unit, Department of Internal Medicine, University of Genoa, 16132 Genoa, Italy; (G.B.); (M.C.C.); (F.P.); (F.S.)
- Clinical Pharmacology Unit, Ente Ospedaliero Ospedali Galliera, 16128 Genoa, Italy
| | - Marina Sartini
- Operating Unit Hospital Hygiene, Ente Ospedaliero Ospedali Galliera, 16128 Genoa, Italy; (M.L.C.); (M.S.)
- Department of Health Sciences, University of Genoa, 16132 Genoa, Italy
| | - Emanuele Pontali
- Department of Infectious Diseases, Ente Ospedaliero Ospedali Galliera, 16128 Genoa, Italy; (R.P.); (E.P.)
| |
Collapse
|
7
|
Hou Y, Zhu S, Chen Y, Yu M, Liu Y, Li M. Evaluation of Antibacterial Activity of Thiourea Derivative TD4 against Methicillin-Resistant Staphylococcus aureus via Destroying the NAD+/NADH Homeostasis. Molecules 2023; 28:molecules28073219. [PMID: 37049981 PMCID: PMC10096324 DOI: 10.3390/molecules28073219] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 03/31/2023] [Accepted: 03/31/2023] [Indexed: 04/14/2023] Open
Abstract
To develop effective agents to combat bacterial infections, a series of thiourea derivatives (TDs) were prepared and their antibacterial activities were evaluated. Our results showed that TD4 exerted the most potent antibacterial activity against a number of Staphylococcus aureus (S. aureus), including the methicillin-resistant Staphylococcus aureus (MRSA), Staphylococcus epidermidis and Enterococcus faecalis strains, with the minimum inhibitory concentration (MIC) at 2-16 µg/mL. It inhibited the MRSA growth curve in a dose-dependent manner and reduced the colony formation unit in 4× MIC within 4 h. Under the transmission electron microscope, TD4 disrupted the integrity of MRSA cell wall. Additionally, it reduced the infective lesion size and the bacterial number in the MRSA-induced infection tissue of mice and possessed a good drug likeness according to the Lipinski rules. Our results indicate that TD4 is a potential lead compound for the development of novel antibacterial agent against the MRSA infection.
Collapse
Affiliation(s)
- Yachen Hou
- College of Life Sciences, Northwest University, Xi'an 710069, China
- Department of Pharmacology, School of Pharmacy, Air Force Medical University, Xi'an 710032, China
| | - Sikai Zhu
- Department of Medicinal Chemistry and Pharmaceutical Analysis, School of Pharmacy, Air Force Medical University, Xi'an 710032, China
| | - Yamiao Chen
- College of Life Sciences, Northwest University, Xi'an 710069, China
- Department of Pharmacology, School of Pharmacy, Air Force Medical University, Xi'an 710032, China
| | - Moxi Yu
- Department of Pharmacology, School of Pharmacy, Air Force Medical University, Xi'an 710032, China
| | - Yongsheng Liu
- Department of Pharmacology, School of Pharmacy, Air Force Medical University, Xi'an 710032, China
| | - Mingkai Li
- Department of Pharmacology, School of Pharmacy, Air Force Medical University, Xi'an 710032, China
| |
Collapse
|
8
|
Linz MS, Mattappallil A, Finkel D, Parker D. Clinical Impact of Staphylococcus aureus Skin and Soft Tissue Infections. Antibiotics (Basel) 2023; 12:antibiotics12030557. [PMID: 36978425 PMCID: PMC10044708 DOI: 10.3390/antibiotics12030557] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/03/2023] [Accepted: 03/09/2023] [Indexed: 03/14/2023] Open
Abstract
The pathogenic bacterium Staphylococcus aureus is the most common pathogen isolated in skin-and-soft-tissue infections (SSTIs) in the United States. Most S. aureus SSTIs are caused by the epidemic clone USA300 in the USA. These infections can be serious; in 2019, SSTIs with S. aureus were associated with an all-cause, age-standardized mortality rate of 0.5 globally. Clinical presentations of S. aureus SSTIs vary from superficial infections with local symptoms to monomicrobial necrotizing fasciitis, which can cause systemic manifestations and may lead to serious complications or death. In order to cause skin infections, S. aureus employs a host of virulence factors including cytolytic proteins, superantigenic factors, cell wall-anchored proteins, and molecules used for immune evasion. The immune response to S. aureus SSTIs involves initial responders such as keratinocytes and neutrophils, which are supported by dendritic cells and T-lymphocytes later during infection. Treatment for S. aureus SSTIs is usually oral therapy, with parenteral therapy reserved for severe presentations; it ranges from cephalosporins and penicillin agents such as oxacillin, which is generally used for methicillin-sensitive S. aureus (MSSA), to vancomycin for methicillin-resistant S. aureus (MRSA). Treatment challenges include adverse effects, risk for Clostridioides difficile infection, and potential for antibiotic resistance.
Collapse
Affiliation(s)
- Matthew S. Linz
- Department of Pathology, Immunology and Laboratory Medicine, Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, NJ 07103, USA
| | - Arun Mattappallil
- Department of Pharmaceutical Services, University Hospital, Newark, NJ 07103, USA
| | - Diana Finkel
- Division of Infectious Diseases, Department of Medicine, Rutgers New Jersey Medical School, Newark, NJ 07103, USA
| | - Dane Parker
- Department of Pathology, Immunology and Laboratory Medicine, Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, NJ 07103, USA
- Correspondence: ; Fax: +1-973-972-3047
| |
Collapse
|
9
|
Saini M, Gaurav A, Kothari A, Omar BJ, Gupta V, Bhattacharjee A, Pathania R. Small Molecule IITR00693 (2-Aminoperimidine) Synergizes Polymyxin B Activity against Staphylococcus aureus and Pseudomonas aeruginosa. ACS Infect Dis 2023; 9:692-705. [PMID: 36716174 DOI: 10.1021/acsinfecdis.2c00622] [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: 01/31/2023]
Abstract
The rise of antibiotic resistance among skin-infecting pathogens poses an urgent threat to public health and has fueled the search for new therapies. Enhancing the potency of currently used antibiotics is an alternative for the treatment of infections caused by drug-resistant pathogens. In this study, we aimed to identify a small molecule that can potentiate currently used antibiotics. IITR00693 (2-aminoperimidine), a novel antibacterial small molecule, potentiates the antibacterial activity of polymyxin B against Staphylococcus aureus and Pseudomonas aeruginosa. Herein, we investigated in detail the mode of action of this interaction and the molecule's capability to combat soft-tissue infections caused by S. aureus and P. aeruginosa. A microdilution checkerboard assay was performed to determine the synergistic interaction between polymyxin B and IITR00693 in clinical isolates of S. aureus and P. aeruginosa. Time-kill kinetics, post-antibiotic effect, and resistance generation studies were performed to assess the pharmacodynamics of the combination. Assays based on different fluorescent probes were performed to decipher the mechanism of action of this combination. The in vivo efficacy of the IITR00693-polymyxin B combination was determined in a murine acute wound infection model. IITR00693 exhibited broad-spectrum antibacterial activity. IITR00693 potentiated polymyxin B and colistin against polymyxin-resistant S. aureus. IITR00693 prevented the generation of resistant mutants against multiple antibiotics. The IITR00693-polymyxin B combination decreased the S. aureus count by >3 log10 CFU in a murine acute wound infection model. IITR00693 is a potential and promising candidate for the treatment of soft-tissue infections along with polymyxins.
Collapse
Affiliation(s)
- Mahak Saini
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Uttarakhand247 667, India
| | - Amit Gaurav
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Uttarakhand247 667, India
| | - Ashish Kothari
- Department of Microbiology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand249 201, India
| | - Balram Ji Omar
- Department of Microbiology, All India Institute of Medical Sciences, Rishikesh, Uttarakhand249 201, India
| | - Varsha Gupta
- Department of Microbiology, Government Medical College and Hospital Chandigarh, Chandigarh160 030, India
| | | | - Ranjana Pathania
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Uttarakhand247 667, India
| |
Collapse
|
10
|
Wan Y, Wang X, Yang L, Li Q, Zheng X, Bai T, Wang X. Antibacterial Activity of Juglone Revealed in a Wound Model of Staphylococcus aureus Infection. Int J Mol Sci 2023; 24:ijms24043931. [PMID: 36835350 PMCID: PMC9963570 DOI: 10.3390/ijms24043931] [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: 12/31/2022] [Revised: 01/17/2023] [Accepted: 02/07/2023] [Indexed: 02/18/2023] Open
Abstract
A serious problem currently facing the field of wound healing is bacterial infection, especially Staphylococcus aureus (S. aureus) infection. Although the application of antibiotics has achieved good effects, their irregular use has resulted in the emergence of drug-resistant strains. It is thus the purpose of this study to analyze whether the naturally extracted phenolic compound, juglone, can inhibit S. aureus in wound infection. The results show that the minimum inhibitory concentration (MIC) of juglone against S. aureus was 1000 μg/mL. Juglone inhibited the growth of S. aureus by inhibiting membrane integrity and causing protein leakage. At sub-inhibitory concentrations, juglone inhibited biofilm formation, the expression of α-hemolysin, the hemolytic activity, and the production of proteases and lipases of S. aureus. When applied to infected wounds in Kunming mice, juglone (50 μL juglone with a concentration of 1000 μg/mL) significantly inhibited the number of S. aureus and had a significant inhibitory effect on the expression of inflammatory mediators (TNF-α, IL-6 and IL-1β). Moreover, the juglone-treated group promoted wound healing. At the same time, in animal toxicity experiments, juglone had no obvious toxic effects on the main tissues and organs of mice, indicating that juglone has good biocompatibility and has the potential to be used in the treatment of wounds infected with S. aureus.
Collapse
|
11
|
A Retrospective Study to Compare the Incidence of Hyponatremia after Administration between Linezolid and Tedizolid. Antibiotics (Basel) 2023; 12:antibiotics12020345. [PMID: 36830256 PMCID: PMC9952512 DOI: 10.3390/antibiotics12020345] [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: 12/27/2022] [Revised: 01/31/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023] Open
Abstract
Linezolid (LZD) and Tedizolid (TZD) are oxazolidinone antibiotic for meticillin-resistant Staphylococcus aureus (MRSA). Severe hyponatremia after LZD administration have been reported. Severe hyponatremia cause seizures, unconsciousness, and even death. Therefore, we conducted a study to assess the change of serum sodium level after LZD and TZD therapy. We enrolled 67 patients treated with LZD and 28 treated with TZD. We monitored the serum sodium level from the administration to 14 days after administration of oxazolidinone drug. Hyponatremia was defined a sodiuln level ≤134 mmol/L after the initiation of oxazolidinone drug. The frequency of hyponatremia in the LZD group was significantly higher than that in the TZD group (39.7% vs. 11.1%, p < 0.05). The rate of patients administered by injection was significantly higher than in the LZD group than in the TZD group (52.9% vs. 14.8%, p < 0.01). Multiple logistic regression analyses identified the albumin level before the oxazolidinone drug therapy as the independent variables associated with the development of hyponatremia. We revealed that TZD is safer than LZD in terms of hyponatremia. Therefore, cases that LZD is administered by injection should be used more carefully with hyponatremia in patients with low albumin level.
Collapse
|
12
|
Li G, Walker MJ, De Oliveira DMP. Vancomycin Resistance in Enterococcus and Staphylococcus aureus. Microorganisms 2022; 11:microorganisms11010024. [PMID: 36677316 PMCID: PMC9866002 DOI: 10.3390/microorganisms11010024] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/19/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Enterococcus faecalis, Enterococcus faecium and Staphylococcus aureus are both common commensals and major opportunistic human pathogens. In recent decades, these bacteria have acquired broad resistance to several major classes of antibiotics, including commonly employed glycopeptides. Exemplified by resistance to vancomycin, glycopeptide resistance is mediated through intrinsic gene mutations, and/or transferrable van resistance gene cassette-carrying mobile genetic elements. Here, this review will discuss the epidemiology of vancomycin-resistant Enterococcus and S. aureus in healthcare, community, and agricultural settings, explore vancomycin resistance in the context of van and non-van mediated resistance development and provide insights into alternative therapeutic approaches aimed at treating drug-resistant Enterococcus and S. aureus infections.
Collapse
|
13
|
Song C, Wen R, Zhou J, Zeng X, Kou Z, Li Y, Yun F, Wu R. UV C Light from a Light-Emitting Diode at 275 Nanometers Shortens Wound Healing Time in Bacterium- and Fungus-Infected Skin in Mice. Microbiol Spectr 2022; 10:e0342422. [PMID: 36453911 PMCID: PMC9769979 DOI: 10.1128/spectrum.03424-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 11/07/2022] [Indexed: 12/05/2022] Open
Abstract
Due to the changes in pathogenic species and the absence of research on topical skin antibiotics, the therapy of skin and soft tissue infections (SSTIs) is facing more and more severe challenges. It is particularly urgent to look for alternative therapies without induction of drug resistance. UV C (UVC) light within the range of 200 to 280 nm is one of the most common techniques used to kill and/or inactivate pathogenic microorganisms. However, the traditional most commonly used wavelength of 254 nm irradiated from a low-pressure mercury lamp is hazardous to human health, being both carcinogenic and damaging to eye tissues, which limits its applications in vivo. This research aimed to investigate the antimicrobial properties and influence of 275-nm UVC light from a light-emitting diode (UVC-LED light) on wound healing time. Five bacteria, three fungi, and scalded-mouse models combined with SSTIs were used to evaluate the antimicrobial effect in vitro and in vivo. 275-nm UVC-LED light inactivated both bacteria and fungi with a very short irradiation time in vitro and induced neither DNA damage nor epidermal lesions in the mice's skin. Furthermore, in mouse models of SSTIs induced by either methicillin-resistant Staphylococcus aureus (MRSA) or Candida albicans, the 275-nm UVC-LED light showed significant antimicrobial effects and shortened the wound healing time compared with that in the no-irradiation group. UVC-LED light at 275 nm has the potential to be a new form of physical therapy for SSTIs. IMPORTANCE As a common clinical problem, the therapy of SSTIs is facing growing challenges due to an increase in the number of drug-resistant bacteria and fungi. UV C (UVC) light sterilization has been widely used in all aspects of daily life, but there are very few reports about in vivo therapy using UVC light. It is well known that prolonged exposure to UVC light increases the possibility of skin cancer. In addition, it is also very harmful for eyes. UV irradiation with 254-nm UVC light can cause corneal damage, like thinning of the corneal epithelial layer, superficial punctate keratitis, corneal erosion, etc. In this study, we focused on looking for a more accessible light source and safer UVC wavelength, and 275-nm UVC LED light was chosen. We investigated its applicability for SSTIs therapy with relative skin safety and expected that it could be used as a new physical therapy method for SSTIs.
Collapse
Affiliation(s)
- Chenghua Song
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, Shaanxi Provincial Center for Regenerative Medicine and Surgical Engineering, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Ruichao Wen
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, Shaanxi Provincial Center for Regenerative Medicine and Surgical Engineering, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Jiaxuan Zhou
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, Shaanxi Provincial Center for Regenerative Medicine and Surgical Engineering, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Xiaoyan Zeng
- Department of Laboratory Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Zi Kou
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, Shaanxi Provincial Center for Regenerative Medicine and Surgical Engineering, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Yufeng Li
- Solid-State Lighting Engineering Research Center, Xi’an Jiaotong University, Xi’an, China
- Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, China
| | - Feng Yun
- Solid-State Lighting Engineering Research Center, Xi’an Jiaotong University, Xi’an, China
| | - Rongqian Wu
- National Local Joint Engineering Research Center for Precision Surgery & Regenerative Medicine, Shaanxi Provincial Center for Regenerative Medicine and Surgical Engineering, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| |
Collapse
|
14
|
Liu HW, Chiang WY, Huang YH, Huang CY. The Inhibitory Effects and Cytotoxic Activities of the Stem Extract of Sarracenia purpurea against Melanoma Cells and the SsbA Protein. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11223164. [PMID: 36432892 PMCID: PMC9692666 DOI: 10.3390/plants11223164] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/17/2022] [Accepted: 11/17/2022] [Indexed: 06/12/2023]
Abstract
The Staphylococcus aureus SsbA protein (SaSsbA) is a single-stranded DNA-binding protein (SSB) that is categorically required for DNA replication and cell survival, and it is thus an attractive target for potential antipathogen chemotherapy. In this study, we prepared the stem extract of Sarracenia purpurea obtained from 100% acetone to investigate its inhibitory effect against SaSsbA. In addition, the cytotoxic effects of this extract on the survival, apoptosis, proliferation, and migration of B16F10 melanoma cells were also examined. Initially, myricetin, quercetin, kaempferol, dihydroquercetin, dihydrokaempferol, rutin, catechin, β-amyrin, oridonin, thioflavin T, primuline, and thioflavin S were used as possible inhibitors against SaSsbA. Of these compounds, dihydrokaempferol and oridonin were capable of inhibiting the ssDNA-binding activity of SaSsbA with respective IC50 values of 750 ± 62 and 2607 ± 242 μM. Given the poor inhibition abilities of dihydrokaempferol and oridonin, we screened the extracts of S. purpurea, Nepenthes miranda, and Plinia cauliflora for SaSsbA inhibitors. The stem extract of S. purpurea exhibited high anti-SaSsbA activity, with an IC50 value of 4.0 ± 0.3 μg/mL. The most abundant compounds in the stem extract of S. purpurea were identified using gas chromatography−mass spectrometry. The top five most abundant contents in this extract were driman-8,11-diol, deoxysericealactone, stigmast-5-en-3-ol, apocynin, and α-amyrin. Using the MOE-Dock tool, the binding modes of these compounds, as well as dihydrokaempferol and oridonin, to SaSsbA were elucidated, and their binding energies were also calculated. Based on the S scores, the binding capacity of these compounds was in the following order: deoxysericealactone > dihydrokaempferol > apocynin > driman-8,11-diol > stigmast-5-en-3-ol > oridonin > α-amyrin. Incubation of B16F10 cells with the stem extract of S. purpurea at a concentration of 100 μg/mL caused deaths at the rate of 76%, reduced migration by 95%, suppressed proliferation and colony formation by 99%, and induced apoptosis, which was observed in 96% of the B16F10 cells. Overall, the collective data in this study indicate the pharmacological potential of the stem extract of S. purpurea for further medical applications.
Collapse
Affiliation(s)
- Hong-Wen Liu
- Department of Rheumatology and Immunology, Antai Medical Care Corporation Antai Tian-Sheng Memorial Hospital, Pingtung 928, Taiwan
| | - Wei-Yu Chiang
- Department of Biomedical Sciences, Chung Shan Medical University, Taichung City 402, Taiwan
| | - Yen-Hua Huang
- Department of Rheumatology and Immunology, Antai Medical Care Corporation Antai Tian-Sheng Memorial Hospital, Pingtung 928, Taiwan
- Department of Biomedical Sciences, Chung Shan Medical University, Taichung City 402, Taiwan
| | - Cheng-Yang Huang
- Department of Biomedical Sciences, Chung Shan Medical University, Taichung City 402, Taiwan
- Department of Medical Research, Chung Shan Medical University Hospital, Taichung City 402, Taiwan
| |
Collapse
|
15
|
Carvalhaes CG, Sader HS, Streit JM, Mendes RE. Five-year analysis of the in vitro activity of tedizolid against a worldwide collection of indicated species causing clinical infections: results from the Surveillance of Tedizolid Activity and Resistance (STAR) programme. JAC Antimicrob Resist 2022; 4:dlac088. [PMID: 36072303 PMCID: PMC9442614 DOI: 10.1093/jacamr/dlac088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 08/02/2022] [Indexed: 11/14/2022] Open
Abstract
Objectives The Surveillance of Tedizolid Activity and Resistance (STAR) programme monitored the tedizolid activity against Staphylococcus aureus, Enterococcus faecalis, Streptococcus pyogenes, Streptococcus agalactiae and Streptococcus anginosus group. We evaluated the antimicrobial susceptibility of 47 400 unique Gram-positive clinical isolates from the STAR programme collected from USA (21 243), Europe (17 674), Asia-Pacific (4954) and Latin America (3529) medical centres (2015–19). Methods All isolates were tested for susceptibility by reference broth microdilution method. WGS and in silico analysis were performed on linezolid-non-susceptible (NS) isolates. Results Tedizolid was active against ≥99.9% of S. aureus (100.0% of MSSA and >99.9% of MRSA), E. faecalis, S. pyogenes, S. agalactiae and S. anginosus group isolates, with MIC50 values ranging from 0.12 to 0.25 mg/L and MIC90 values of 0.25 mg/L. Linezolid, vancomycin and daptomycin were also active agents against these organisms. Tedizolid inhibited all VRE and 73.1% of linezolid-NS E. faecalis isolates. Ampicillin and daptomycin retained 100.0% activity against VRE and linezolid-NS E. faecalis isolates. Linezolid-NS E. faecalis isolates carried mostly the optrA gene. G2576T alterations in the 23S rRNA were observed in one linezolid-NS S. aureus isolate and one linezolid-NS E. faecalis isolate. Conclusions No resistance trends were observed for tedizolid during the study period.
Collapse
|
16
|
Tabaja H, Tai DBG, Beam E, Abdel MP, Tande AJ. Clinical Profile of Monomicrobial Corynebacterium Hip and Knee Periprosthetic Joint Infections. Open Forum Infect Dis 2022; 9:ofac193. [PMID: 35873283 PMCID: PMC9297158 DOI: 10.1093/ofid/ofac193] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 04/11/2022] [Indexed: 11/14/2022] Open
Abstract
Background Corynebacterium periprosthetic joint infection (PJI) is a poorly described infectious syndrome. Prior studies included cases of polymicrobial infections. This series describes the clinical characteristics, management, and outcomes of monomicrobial Corynebacterium PJI. Methods We queried the Mayo Clinic Total Joint Registry for cases of monomicrobial Corynebacterium knee and hip PJI in adults (age ≥18 years) between 2010 and 2019. Results A total of 20 (1%) out of 2067 PJI cases met our inclusion criteria. Most were males (55%), and the median age was 64 years. Seventy percent had chronic symptoms (>4 weeks). PJI was delayed to late (>3 months postimplantation) in 90%. Three species were identified: C. striatum (70%), C. jeikeium (20%), and C. amycolatum (10%). All tested isolates were susceptible to vancomycin (100%) and linezolid (100%), and most had a minimum inhibitory concentration ≤0.06 mcg/mL to daptomycin (75%). Other agents were less reliable, with high resistance to oral agents commonly used for suppression. Nineteen patients were treated: 37% debridement and implant retention (DAIR), 47% 2-stage exchange, and 16% resection without reimplantation. Of these, failure occurred in 29%, 11%, and 0%, respectively. Conclusions Corynebacterium PJIs pose a therapeutic challenge due to limited antimicrobial armamentarium and undefined optimal surgical intervention. Vancomycin and linezolid remain the most reliable agents for treatment. DAIR may be attempted for acute PJI, but verification of durable chronic suppression options will be critical for this approach.
Collapse
Affiliation(s)
- Hussam Tabaja
- Division of Public Health, Infectious Diseases and Occupational Medicine, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Don Bambino Geno Tai
- Division of Public Health, Infectious Diseases and Occupational Medicine, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Elena Beam
- Division of Public Health, Infectious Diseases and Occupational Medicine, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Matthew P Abdel
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Aaron J Tande
- Correspondence: Aaron J. Tande, MD, Division of Public Health, Infectious Diseases and Occupational Medicine, Mayo Clinic, 200 First St. SW, Rochester, MN 55905 ()
| |
Collapse
|