Title : Mechanism of inhibition of matrix metalloproteinase-9 induction by NO in vascular smooth muscle cells.

Pub. Date : 2001 Sep

PMID : 11509539






4 Functional Relationships(s)
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1 In this study, we examined the hypothesis that NO inhibits MMP-9 induction by attenuating superoxide generation and extracellular signal-regulated kinase (ERK) activation. Superoxides matrix metallopeptidase 9 Homo sapiens
2 Direct exposure of VSM cells to increased superoxide levels by treatment with xanthine/xanthine oxidase increased ERK activation and MMP-9 induction, whereas pretreatment of cells with PD-98059 significantly (P < 0.05) inhibited xanthine/xanthine oxidase-stimulated ERK activation and MMP-9 induction. Superoxides matrix metallopeptidase 9 Homo sapiens
3 Direct exposure of VSM cells to increased superoxide levels by treatment with xanthine/xanthine oxidase increased ERK activation and MMP-9 induction, whereas pretreatment of cells with PD-98059 significantly (P < 0.05) inhibited xanthine/xanthine oxidase-stimulated ERK activation and MMP-9 induction. Superoxides matrix metallopeptidase 9 Homo sapiens
4 We conclude that NO inhibits IL-1 beta-stimulated MMP-9 induction by inhibiting superoxide generation and subsequent ERK activation. Superoxides matrix metallopeptidase 9 Homo sapiens