ArticleJournal of orthopaedic research : official publication of the Orthopaedic Research Society2021
Emerging electron microscopy and 3D methodologies to interrogate Staphylococcus aureus osteomyelitis in murine models.
Article in Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 9 citations in OpenAlex.
- Dual chitosan hydrogel and polylactic acid microparticle delivery system reduces Staphylococcal osteomyelitis and soft tissue infection.NPJ biofilms and microbiomes · 2025Article
- Bisphosphonate-Conjugated Sitafloxacin for Treatment ofPharmaceuticals (Basel, Switzerland) · 2025Article
- Insights intoInternational journal of molecular sciences · 2023Article
- Efficacy of Bisphosphonate-Conjugated Sitafloxacin in a Murine Model ofFrontiers in cellular and infection microbiology · 2022Article
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Authors and funding
8 authors at 2 institutions in 2 countries.
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Abstract
Recent breakthroughs in our understanding of orthopaedic infections have come from advances in transmission electron microscopy (TEM) imaging of murine models of bone infection, most notably Staphylococcus aureus invasion and colonization of osteocyte-lacuno canalicular networks of live cortical bone during the establishment of chronic osteomyelitis. To further elucidate this microbial pathogenesis and evaluate the mechanism of action of novel interventions, additional advances in TEM imaging are needed. Here we present detailed protocols for fixation, decalcification, and epoxy embedment of bone tissue for standard TEM imaging studies, as well as the application of immunoelectron microscopy to confirm S. aureus occupation within sub-micron canaliculi. We also describe the first application of the novel Automated-Tape-UltraMicrotome system with three-dimensional reconstruction and volumetric analyses to quantify S. aureus occupation within the osteocyte-lacuno canalicular networks. Reconstruction of the three-dimensional volume broadened our perspective of S. aureus colonization of the canalicular network and, surprisingly, revealed adjacent noninfected canaliculi. This observation has led us to hypothesize that viable osteocytes of the osteocyte-lacuno canalicular networks respond and resist infection, opening future research directions to explain the paradox of adjacent uninfected canaliculi and life-long deep bone infection in patients with chronic osteomyelitis.
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