Research on the Effect of p35 for Secretion of Proinflammatory Factor and Apoptosis of Chondrocyte in Chondrocytopathic Articular Fluid

Abstract

To study on the effect of transcriptional regulation factor as p35 for secretion of proinflammatory factor and apoptosis of chondrocyte in chondrocytopathic articular fluid so as to improve the chondropathy. The fifty SD rats were selected for our study. It was divided into three groups including A group (control group), B group (chondrocytopathic model group of osteoarthritis) and C group (transcriptional regulation factor as p35 intervention group. The samples were collected after intervention in sixteen weeks. The sampling position was cartilage tissue of rat leg. It was adopted for immunohistochemical inspection and histopathology examination. At the same time the synovial fluid was collected. The concentration of TNF-α and IL-6 was detected. And the expression of mRNA in gene related with apoptosis was detected. The chondrocyte morphology of rats in A group was normal. The chondrocyte was damaged and goblet cell was reduced in B group. The infiltrating inflammatory cells in C group were less than in B group from pathological results. And the goblet cells in C group was increased than in B group. The expression of TNF-α, Bax, NF-κB, IL-6: B group > C group > A group. The expression of Bcl-2: A group > C group > B group. The transcriptional regulation factor as p35 related with anti-apoptosis could regulate the level of inflammatory factor as TNF-α and IL-6 in synovial fluid and restrain the lesion and apoptosis of chondrocyte.