Inflammatory perivascular cuffs are comprised of leucocytes that accumulate in the perivascular space around post-capillary venules before their infiltration into the parenchyma of the central nervous system. Inflammatory perivascular cuffs are commonly found in the central nervous system of patients with multiple sclerosis and in the animal model experimental autoimmune encephalomyelitis. Leuc...

PURPOSE To assess matrix metalloproteinase (MMP)-9 expression in pterygium lesion. METHODS A prospective randomized clinical trial was done to evaluate the expression of matrix metalloproteinase in normal and in primary or recurrent pterygia in Tenon's capsule by immunohistochemical analysis and a computerized image analysis system. The data were submitted to statistical analysis. RESULTS M...

Matrix metalloproteinase-14 is required for degradation of fibrillar collagen by mesenchymal cells. Here we show that keratinocytes use an alternative plasminogen and matrix metalloproteinase-13-dependent pathway for dissolution of collagen fibrils. Primary keratinocytes displayed an absolute requirement for serum to dissolve collagen. Dissolution of collagen was abolished in plasminogen-deplet...

background: current treatments for joint diseases are moderately successful, but unfortunately are associated with significant side effects. this study was undertaken to investigate the combination effects of il-4 and prednisolone on tissue characteristics and production of matrix metalloproteinase-1(mmp-1) in il-lα-treated bovine nasal cartilage (bnc) explants. methods: bnc explants were cultu...

objective(s):n-myc downstream regulated gene 2 (ndrg2) is a candidate gene for tumor suppression. the expression of ndrg2 is down-regulated in several tumors including lung cancer. the aim of this study was to explore the effect of ndrg2 overexpression on invasion, migration, and enzymatic activity of matrix metalloproteinase-2 (mmp-2) and -9 (mmp-9) in human lung adenocarcinoma a549 cells.  ma...

background: the role of matrix metalloproteinase 9 (mmp9) in tumor invasion and progression is prominent. a single nucleotide polymorphism (snp) in the promoter region of mmp9 (-1562 c/t) increases the transcription and expression of this gene. on the other hand, mhc class i chain-related protein a and b (mica/b) in soluble forms may impair tumor immunogenicity by reducing natural killer group ...