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Sekar A, Fan Y, Tierney P, McCanne M, Jones P, Malick F, Kannambadi D, Wannomae KK, Inverardi N, Muratoglu O, Oral E. Investigating the translational value of Periprosthetic Joint Infection (PJI) models to determine the risk and severity of Staphylococcal biofilms. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.29.591689. [PMID: 38746179 PMCID: PMC11092509 DOI: 10.1101/2024.04.29.591689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
With the advent of antibiotic-eluting polymeric materials for targeting recalcitrant infections, using preclinical models to study biofilm is crucial for improving the treatment efficacy in periprosthetic joint infections. The stratification of risk and severity of infections is needed to develop an effective clinical dosing framework with better outcomes. Here, using in-vivo and in-vitro implant-associated infection models, we demonstrate that methicillin-sensitive and resistant Staphylococcus aureus (MSSA and MRSA) have model-dependent distinct implant and peri-implant tissue colonization patterns. The maturity of biofilms and the location (implant vs tissue) were found to influence the antibiotic susceptibility evolution profiles of MSSA and MRSA and the models could capture the differing host-microbe interactions in vivo. Gene expression studies revealed the molecular heterogeneity of colonizing bacterial populations. The comparison and stratification of the risk and severity of infection across different preclinical models provided in this study can guide clinical dosing to effectively prevent or treat PJI.
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Affiliation(s)
- Amita Sekar
- Harris Orthopaedics laboratory, Massachusetts General Hospital, Boston, USA
- Department of Orthopaedic Surgery, Harvard Medical School, Boston USA
| | - Yingfang Fan
- Harris Orthopaedics laboratory, Massachusetts General Hospital, Boston, USA
- Department of Orthopaedic Surgery, Harvard Medical School, Boston USA
| | - Peyton Tierney
- Harris Orthopaedics laboratory, Massachusetts General Hospital, Boston, USA
| | - Madeline McCanne
- Harris Orthopaedics laboratory, Massachusetts General Hospital, Boston, USA
| | - Parker Jones
- Harris Orthopaedics laboratory, Massachusetts General Hospital, Boston, USA
| | - Fawaz Malick
- Harris Orthopaedics laboratory, Massachusetts General Hospital, Boston, USA
| | - Devika Kannambadi
- Harris Orthopaedics laboratory, Massachusetts General Hospital, Boston, USA
| | - Keith K Wannomae
- Harris Orthopaedics laboratory, Massachusetts General Hospital, Boston, USA
| | - Nicoletta Inverardi
- Harris Orthopaedics laboratory, Massachusetts General Hospital, Boston, USA
- Department of Orthopaedic Surgery, Harvard Medical School, Boston USA
| | - Orhun Muratoglu
- Harris Orthopaedics laboratory, Massachusetts General Hospital, Boston, USA
- Department of Orthopaedic Surgery, Harvard Medical School, Boston USA
| | - Ebru Oral
- Harris Orthopaedics laboratory, Massachusetts General Hospital, Boston, USA
- Department of Orthopaedic Surgery, Harvard Medical School, Boston USA
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