ArticleJournal of orthopaedic research : official publication of the Orthopaedic Research Society2020
Biofilm Producing Staphylococcus epidermidis (RP62A Strain) Inhibits Osseous Integration Without Osteolysis and Histopathology in a Murine Septic Implant Model.
Article in Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
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Who cites it
17 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.
- Current therapeutic interventions combating biofilm-related infections in orthopaedics : a systematic review of in vivo animal studies.Bone & joint research · 2022Pooled it
- The boundary between microbial detection and implant-related infection: a structured narrative review of analytical credibility, biological persistence, host response, and clinical causality.Archives of orthopaedic and trauma surgery · 2026Review
- Vancomycin and phage COP-80B combination therapy for Staphylococcus epidermidis periprosthetic joint infections: a preclinical mouse study.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2026Article
- Osteomyelitis.Nature reviews. Disease primers · 2026Review
- In Vivo Study of Osseointegrable Bone Calcium Phosphate (CaP) Implants Coated with a Vanillin Derivative.Pharmaceuticals (Basel, Switzerland) · 2026Article
- A novel MIR imaging approach for precise detection ofBiofilm · 2025Review
- Biofilm and the effect of sonication in a chronic Staphylococcus epidermidis orthopedic in vivo implant infection model.Journal of orthopaedic surgery and research · 2024Article
- Staphyloccocus aureus biofilm, in absence of planktonic bacteria, produces factors that activate counterbalancing inflammatory and immune-suppressive genes in human monocytes.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2024Article
- Non-biofilm-forming Staphylococcus epidermidis planktonic cell supernatant induces alterations in osteoblast biological function.Scientific reports · 2024Article
- Equine bone marrow-derived mesenchymal stromal cells reduce established S. aureus and E. coli biofilm matrix in vitro.PloS one · 2024Article
- Staphylococci planktonic and biofilm environments differentially affect osteoclast formation.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2023Article
- Skeletal infections: microbial pathogenesis, immunity and clinical management.Nature reviews. Microbiology · 2022Review
- Superinfection with Difficult-to-Treat Pathogens Significantly Reduces the Outcome of Periprosthetic Joint Infections.Antibiotics (Basel, Switzerland) · 2021Article
- Recent Strategies to Combat Infections from Biofilm-Forming Bacteria on Orthopaedic Implants.International journal of molecular sciences · 2021Review
- Patient-specific effects of soluble factors from Staphylococcus aureus and Staphylococcus epidermidis biofilms on osteogenic differentiation of primary human osteoblasts.Scientific reports · 2021Article
- Distinct vasculotropic versus osteotropic features of S. agalactiae versus S. aureus implant-associated bone infection in mice.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2021Article
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Authors and funding
11 authors at 3 institutions in 2 countries.
Funding
Abstract
Despite its presence in orthopaedic infections, Staphylococcus epidermidis's ability to directly induce inflammation and bone destruction is unknown. Thus, we compared a clinical strain of methicillin-resistant biofilm-producing S. epidermidis (RP62A) to a highly virulent and osteolytic strain of methicillin-resistant Staphylococcus aureus (USA300) in an established murine implant-associated osteomyelitis model. Bacterial burden was assessed by colony forming units (CFUs), tissue damage was assessed by histology and micro-computed tomography, biofilm was assessed by scanning electron microscopy (SEM), host gene expression was assessed by quantitative polymerase chain reaction, and osseous integration was assessed via biomechanical push-out test. While CFUs were recovered from RP62A-contaminated implants and surrounding tissues after 14 days, the bacterial burden was significantly less than USA300-infected tibiae (p < 0.001). In addition, RP62A failed to produce any of the gross pathologies induced by USA300 (osteolysis, reactive bone formation, Staphylococcus abscess communities, marrow necrosis, and biofilm). However, fibrous tissue was present at the implant-host interface, and rigorous SEM confirmed the rare presence of cocci on RP62A-contaminated implants. Gene expression studies revealed that IL-1β, IL-6, RANKL, and TLR-2 mRNA levels in RP62A-infected bone were increased versus Sterile controls. Ex vivo push-out testing showed that RP62A-infected implants required significantly less force compared with the Sterile group (7.5 ± 3.4 vs. 17.3 ± 4.1 N; p < 0.001), but required 10-fold greater force than USA300-infected implants (0.7 ± 0.3 N; p < 0.001). Taken together, these findings demonstrate that S. epidermidis is a commensal pathogen whose mechanisms to inhibit osseous integration are limited to minimal biofilm formation on the implant, and low-grade inflammation. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 38:852-860, 2020.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.