ABSTRACT
UNLABELLED: One of the perspectives of modern rheumatology is the study of matrix metalloproteinases (MMP) in juvenile arthritis--enzymes that play a key role in the process of joint destruction. AIM: To analyse the content of matrix MMP-2 and MMP-9 and their tissue inhibitor (TIMP-1) in blood serum and synovial fluid in various embodiments of juvenile arthritis in children. PATIENTS AND METHODS: The study involved 82 children with juvenile arthritis, and 20 healthy children. The level of MMP-2, MMP-9 and TIMP-1 were determined in serum and synovial fluid by ELISA. RESULTS: It was found out that with any form of arthritis serum concentrations of MMP-2, MMP-9 and TIMP-1 was significantly higher than control values, but the level of MMP-2 in a subset of enthesitis-related arthritis, didn't differ from the control. Studied parameters in the synovial fluid were much higher than the serum level. With the development of uveitis TIMP-1 in blood serum was lower than in the absence of eye damage. On treatment of patients significant changes in the studied enzymes weren't established. On a good response to therapy the level of MMP-9 in serum decreased, on the lack of effectiveness - increased. CONCLUSIONS: The analysis results confirm the involvement of MMP-2, MMP-9 and TIMP-1 in the processes of inflammatory changes of the joints in juvenile idiopathic arthritis (JIA) and reactive arthritis, regardless the patients' sex or age.
Subject(s)
Arthritis, Juvenile/enzymology , Matrix Metalloproteinases/metabolism , Synovial Fluid/enzymology , Adolescent , Child , Child, Preschool , Enzyme-Linked Immunosorbent Assay , Female , Humans , Infant , Male , Matrix Metalloproteinase 2/metabolism , Matrix Metalloproteinase 9/metabolism , Severity of Illness Index , Tissue Inhibitor of Metalloproteinase-1/metabolismABSTRACT
This work shows comparative characteristics of immunogenic properties of the extract of Opisthorchis felineus in different severity of asthma using antigen presenting dendritic cells in vitro. New data on the effect of Opisthorchis felineus on the expression of surface markers of dendritic cells (CD209, HLA-DR, CD83, CD86) were received. Pronounced expression of CD209, CD86 and HLA-DR on the surface of dendritic cells in mild and severe asthma compared with healthy individuals was shown. In the stimulation of dendritic cells with extract Opisthorchis felineus in vitro weakening of CD86 expression in mild and in severe asthma was found. CD86 molecule may be a regulatory factor in the co-stimulation of dendritic cells which
