Expression levels and association of gelatinases MMP-2 and MMP-9 and collagenases MMP-1 and MMP-13 with VEGF in synovial fluid of patients with arthritis.
This study was performed to provide evidence, albeit indirectly, as to which matrix metalloproteinases (MMPs), among the gelatinases MMP-2 and MMP-9 and the collagenases MMP-1 and MMP-13, play a more proactive role in the angiogenic process in arthritic joint. Joint fluid was collected from 33 patients with rhuematoid arthritis (RA) and osteoarthritis (OA), and protein (MMPs and vascular endothelial growth factor (VEGF)) levels were measured by ELISA, and the association of MMPs with VEGF was evaluated in joint fluid of patients with RA or OA. The levels of collagenases (total MMP-1 and total MMP-13) and gelatinases (total MMP-2 and total MMP-9) in RA joint fluid were significantly higher than those in OA fluid. Total MMP-9 levels were significantly associated with VEGF levels in RA fluids, but not in OA fluid, while total MMP-13 levels were strongly associated with VEGF levels in both RA and OA fluid. However, total MMP-2 and total MMP-1 levels were not associated with VEGF levels in either RA or OA joint fluid. Our results indirectly suggest that in RA and OA, MMP-9 and MMP-13 may play a more important role in angiogenesis than MMP-2 and MMP-1.
Kim
Kyoung Soo
KS
East-West Bone and Joint Research Institute, East-West Neo Medical Center, Kyung Hee University, 149 Sangil-dong, Gangdong-gu, Seoul 134-727, Republic of Korea. labrea46@yahoo.co.kr
Choi
Hyun Mi
HM
Lee
Yeon-Ah
YA
Choi
In Ah
IA
Lee
Sang-Hoon
SH
Hong
Seung-Jae
SJ
Yang
Hyung-In
HI
Yoo
Myung Chul
MC
D001172:Arthritis, Rheumatoid / Q000378:metabolism*; D006801:Humans; D020781:Matrix Metalloproteinase 1 / Q000032:analysis / Q000502:physiology; D053509:Matrix Metalloproteinase 13 / Q000032:analysis / Q000502:physiology; D020778:Matrix Metalloproteinase 2 / Q000032:analysis / Q000502:physiology; D020780:Matrix Metalloproteinase 9 / Q000032:analysis / Q000502:physiology; D020782:Matrix Metalloproteinases / Q000032:analysis*; D010003:Osteoarthritis / Q000378:metabolism*; D013582:Synovial Fluid / Q000737:chemistry*
D053509:Matrix Metalloproteinase 13; D020782:Matrix Metalloproteinases; D020778:Matrix Metalloproteinase 2; D020780:Matrix Metalloproteinase 9; D020781:Matrix Metalloproteinase 1