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Surgical Induction of Posttraumatic Osteoarthritis in the Mouse.

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Given the prevalence and the scope of the personal and societal burden of osteoarthritis (OA), investigators continue to be deeply interested in understanding the pathogenic basis of disease and developing… Click to show full abstract

Given the prevalence and the scope of the personal and societal burden of osteoarthritis (OA), investigators continue to be deeply interested in understanding the pathogenic basis of disease and developing novel disease modifying OA therapies. Because joint trauma/injury is considered a leading predisposing factor in the development of OA, and since posttraumatic OA is one of the most common forms of OA in general, large animal and rodent models of knee injury that accurately recapitulate the OA disease process have become increasingly widespread over the past decade. To enable study in the context of defined genetic backgrounds, investigative teams have developed standardized protocols for injuring the mouse knee that aim to induce a reproducible degenerative process both in terms of severity and temporal pacing of disease progression. The destabilization of the medial meniscus (DMM) is one of the most commonly employed surgical procedure in rodents that reproducibly models posttraumatic OA and allows for the study of disease progression from initiation to end-stage disease. The description provided here sets the stage for both inexperienced and established investigators to employ the DMM procedure, or other similar surgical destabilization methods, to initiate the development of posttraumatic OA in the mouse. Successful application of this method provides a preclinical platform to study the mechanisms driving the pathogenesis of posttraumatic OA and for testing therapeutic strategies to treat it.

Keywords: induction posttraumatic; surgical induction; disease; posttraumatic osteoarthritis; mouse

Journal Title: Methods in molecular biology
Year Published: 2021

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