Histologic evidence for a humoral immune response in synovitis associated with cranial cruciate ligament disease in dogs
| Autor: | Keiichi Kuroki, James L. Cook, Ned Williams |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Male
medicine.medical_specialty Pathology 040301 veterinary sciences Osteoarthritis 0403 veterinary science Cruciate ligament 03 medical and health sciences 0302 clinical medicine Immune system Vascularity Dogs Synovitis medicine Animals Clinical significance Dog Diseases Anterior Cruciate Ligament Connective Tissue Diseases Retrospective Studies General Veterinary Rupture Spontaneous business.industry Anterior Cruciate Ligament Injuries Synovial Membrane 04 agricultural and veterinary sciences medicine.disease Stifle Immunity Humoral medicine.anatomical_structure 030220 oncology & carcinogenesis Hemosiderin Histopathology Female medicine.symptom business |
| Zdroj: | Veterinary surgery : VSREFERENCES. 50(5) |
| ISSN: | 1532-950X |
| Popis: | Objective To investigate histopathological features of synovium from dogs with cranial cruciate ligament disease (CCLD) to seek mechanisms of osteoarthritis (OA) associated with CCLD. Study design Retrospective, single-institution case series. Animals Thirty client-owned dogs. Methods Synovial biopsies (n = 30) obtained from stifles with CCLD were assessed by using two synovitis histopathology grading systems (Krenn and Hospital for Special Surgery [HSS]). The Krenn synovitis score was interpreted as "no synovitis," "low-grade," or "high-grade," while inflammatory subtype (low, mixed, or high) was determined by a computational algorithm within the HSS system. Comparison of synovitis scores was based on degree of CCL rupture and presence of meniscal tears. Results Histopathological changes and synovitis scores were similar regardless of degree of rupture (partial n = 5, complete n = 25) or presence of meniscal injury (n = 12) and were characterized by hyperplastic and lymphoplasmacytic synovitis with increased vascularity (30/30) and the presence of hemosiderin deposits (28/30), binucleated plasma cells (28/30), mucoid change (25/30), and Mott cells (16/30). Thirteen (43%) specimens were consistent with high-grade synovitis according to the Krenn system, while 11 (37%) specimens fit into the high-inflammatory subtype with the HSS system. Conclusion Synovitis associated with canine CCLD in this study population was lymphoplasmacytic and was often highly inflammatory, with the presence of cells pertaining to humoral immunity. Humoral immune responses may play key roles in the synovitis associated with CCLD. Clinical significance Modulation of biological factors that provoke humoral immune responses may mitigate symptoms of OA that persist and progress even after surgical treatment of CCLD in dogs. |
| Databáze: | OpenAIRE |
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