MMI-166 is a selective inhibitor of matrix metalloproteinase (MMP)-2 and MMP-9. Mice implanted a human colon cancer orthotopically received 200 mg/kg of MMI-166 orally for 5 weeks. Gelatin zymography demonstrated that the administration of MMI-166 remarkably decreased the active MMP-2 expression. Histological examination revealed that MMI-166 showed prominent effect on reduction of the invasive...

Up-regulation of matrix metalloproteinase-9 (MMP-9, gelatinase B) in the nervous system has been demonstrated when excitotoxicity-induced tissue remodeling and neuronal death occurs. Induction of MMP-9 by a natural stimulus has not been observed yet. Using RT-PCR and gelatin-zymography we demonstrated MMP-9 induction at transcriptional and protein levels in different structures of the rat eye f...

The effects of crocetin on the cardiac hypertrophy induced by long-term treatment with norepinephrine (NE) in rats have been investigated. The activities of matrix metalloproteinases (MMP-2 and MMP-9) have been assayed by gelatin SDS-PAGE zymography. The expressions of MMP-2 and MMP-9 were detected by RT-PCR. ATPase activity and hydroxyproline contents were measured with a commercial kit. The r...

background: streptokinase is a bacterial protein produced by different beta hemolytic streptococci and widely used in thrombolytic treatment. the main disadvantage of using streptokinase is antibody formation which causes allergic reaction to neutralize effects of streptokinase therapy. aim of this study was investigate of recombinant mutant streptokinase fibrinolytic activity. m aterials and m...

BACKGROUND High blood pressure causes a change in vascular wall structure involving altered extracellular matrix composition, but how this process occurs is not fully understood. METHODS AND RESULTS Using mouse carotid arteries maintained in organ culture for 3 days, we detected increased gelatin zymographic activity of matrix metalloproteinase (MMP)-2 (168+/-13%, P<0.05) in vessels kept at l...

Release of 92-kd type IV collagenase/gelatinase, also known as gelatinase B, by inflammatory and tumor cells is increasingly recognized and is believed to facilitate cellular migration across basement membranes. It has been implicated in the pathogenesis of many diseases, but little is known of its cellular origin(s) and function in liver. In this study we have demonstrated synthesis and releas...

PURPOSE To identify matrix metalloproteinases (MMPs) released by ciliary smooth muscle cells in vitro and to determine whether MMP release is altered by exposure to prostaglandins (PGs). METHODS Human ciliary smooth muscle cells were grown to confluence in monolayer cultures and treated with PGF2 alpha, 11-deoxy-PGE1, or PhXA85 (the nonesterified analogue of PhXA41) for 12 to 72 hours. The ac...

there are increasing data on novel tumor markers such as gelatinase a, which play a key role in tissue invasion and metastasis. since prostate cancer is one of the common malignancies, we designed a simple and applicable indi¬rect hemagglutination (iha) test for determination of total gelatinase a in se¬rum samples. in this study, we have analyzed the circulating form of gelatinase a (mmp-2) in...

Background: Aging is a process caused by oxidants and aging-related enzymes. Therefore, the inhibition of these processes can exacerbate anti-aging agents. This study aimed to evaluate antioxidant activities leaf extracts from seven herbs used in traditional Thai herbal remedies. Methods: Researchers assessed total levels phenolic content (TPC), antioxidant, anti-collagenase, anti-tyrosinase ac...