Naringenin regulates production of matrix metalloproteinases in the knee-joint and primary cultured articular chondrocytes and alleviates pain in rat osteoarthritis model
Braz. j. med. biol. res; 50 (4), 2017
Publication year: 2017
Inflammation of cartilage is a primary symptom for knee-joint osteoarthritis. Matrix metalloproteinases (MMPs) are known to play an important role in the articular cartilage destruction related to osteoarthritis. Naringenin is a plant-derived flavonoid known for its anti-inflammatory properties. We studied the effect of naringenin on the transcriptional expression, secretion and enzymatic activity of MMP-3 in vivo in the murine monosodium iodoacetate (MIA) osteoarthritis model. The assessment of pain behavior was also performed in the MIA rats. The destruction of knee-joint tissues was analyzed microscopically. Moreover, the effect of naringenin was also studied in vitro in IL-1β activated articular chondrocytes. The transcriptional expression of MMP-3, MMP-1, MMP-13, thrombospondin motifs (ADAMTS-4) and ADAMTS-5 was also studied in primary cultured chondrocytes of rats. Naringenin caused significant reduction in pain behavior and showed marked improvement in the tissue morphology of MIA rats. Moreover, a significant inhibition of MMP-3 expression in MIA rats was observed upon treatment with naringenin. In the in vitro tests, naringenin caused a significant reduction in the transcriptional expression, secretion and enzymatic activity of the studied degradative enzymes. The NF-κB pathway was also found to be inhibited upon treatment with naringenin in vitro. Overall, the study suggests that naringenin alleviated pain and regulated the production of matrix-metalloproteinases via regulation of NF-κB pathway. Thus, naringenin could be a potent therapeutic option for the treatment of osteoarthritis.
Antiinflamatorios/farmacología, Artralgia/tratamiento farmacológico, Artralgia/enzimología, Western Blotting, Proliferación Celular/efectos de los fármacos, Células Cultivadas, Condrocitos/efectos de los fármacos, Condrocitos/enzimología, Modelos Animales de Enfermedad, Flavanonas/farmacología, Expresión Génica, Interleucina-1beta/análisis, Interleucina-1beta/efectos de los fármacos, Interleucina-1beta/metabolismo, Articulación de la Rodilla/enzimología, Articulación de la Rodilla/patología, Metaloproteinasa 3 de la Matriz/análisis, Metaloproteinasa 3 de la Matriz/biosíntesis, Inhibidor NF-kappaB alfa/análisis, Inhibidor NF-kappaB alfa/efectos de los fármacos, FN-kappa B/análisis, FN-kappa B/efectos de los fármacos, Osteoartritis de la Rodilla/tratamiento farmacológico, Osteoartritis de la Rodilla/enzimología, Osteoartritis de la Rodilla/patología, Distribución Aleatoria, Ratas Wistar, Reproducibilidad de los Resultados, Reacción en Cadena de la Polimerasa de Transcriptasa Inversa, Factores de Tiempo, Resultado del Tratamiento