S100A8/A9 as a biomarker for synovial inflammation and joint damage in patients with rheumatoid arthritis
The Korean Journal of Internal Medicine
;
: 12-19, 2014.
Article
Dans Anglais
| WPRIM
| ID: wpr-224089
ABSTRACT
S100A8 and S100A9 are major leukocyte proteins, known as damage-associated molecular patterns, found at high concentrations in the synovial fluid of patients with rheumatoid arthritis (RA). A heterodimeric complex of S100A8/A9 is secreted by activated leukocytes and binds to Toll-like receptor 4, which mediates downstream signaling and promotes inflammation and autoimmunity. Serum and synovial fluid levels of S100A8/A9 are markedly higher in patients with RA than in patients with osteoarthritis or miscellaneous inflammatory arthritis. Serum levels of S100A8/A9 are significantly correlated with clinical and laboratory markers of inflammation, such as C-reactive protein, erythrocyte sedimentation rate, rheumatoid factor, and the Disease Activity Score for 28 joints. Significant correlations have also been found between S100A8/A9 and radiographic and clinical assessments of joint damage, such as hand radiographs and the Rheumatoid Arthritis Articular Damage score. In addition, among known inflammatory markers, S100A8/A9 has the strongest correlation with total sum scores of ultrasonography assessment. Furthermore, baseline levels of S100A8/A9 are independently associated with progression of joint destruction in longitudinal studies and are responsive to change during conventional and biologic treatments. These findings suggest S100A8/A9 to be a valuable diagnostic and prognostic biomarker for RA.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Polyarthrite rhumatoïde
/
Synovie
/
Arthrographie
/
Marqueurs biologiques
/
Calgranuline A
/
Calgranuline B
/
Articulations
Type d'étude:
Étude observationnelle
/
Étude pronostique
Limites du sujet:
Humains
langue:
Anglais
Texte intégral:
The Korean Journal of Internal Medicine
Année:
2014
Type:
Article
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