| 包装 | 价格(元) |
| 1mg | 电议 |
| 5mg | 电议 |
| 10mg | 电议 |
| 50mg | 电议 |
Preparation Method | Macrophages (enzymes) were incubated with different stimuli, alone or in the presence of the studied compounds( nor-NOHA (acetate) ) for different times. Aliquots were removed from the medium at selected times and subjected to HPLC analysis and nitrite determination. |
Reaction Conditions | 0.01-1000uM nor-NOHA (acetate) for 29.0min |
Applications | Mouse macrophages with arginase activity Macrophages were cultured in medium containing -arginine, which was broken down and the addition of nor-NOHA (acetate) to these cells resulted in a concentration dependent decrease in L-ornithine formation. |
Cell lines | K562 cells |
Preparation Method | K562 cells were treated with vehicle (DMSO) or increasing concentrations of nor-NOHA (acetate) (0.1 0.5 or 1mM) for 72 h, and cell viability was determined by annexin V/ 7-aad staining. |
Reaction Conditions | 0.1-1mM nor-NOHA (acetate) for 72h |
Applications | nor-NOHA (acetate) had little effect on cell viability under normoxia, it significantly induced apoptosis in a dose-dependent manner under hypoxia, the level of intracellular arginine was reduced upon induction of ARG2 under hypoxia but was restored by nor-NOHA (acetate), confirming the inhibition of arginase activity. |
Animal models | AIA rats |
Preparation Method | AIA rats were treated with nor-NOHA (acetate) (40 mg/kg/ day, IP) for 21 days after the onset of arthritis. A group of untreated AIA rats and a group of healthy rats served as controls. |
Dosage form | nor-NOHA (acetate) (40 mg/kg/d, i.p) for 21 days |
Applications | nor-NOHA (acetate) treatment could fully restore the aortic response to Ach to that of healthy rats. The results also showed that such beneficial effect was mediated by an increase in NOS activity and EDHF and reduced superoxide anion production. In addition, nor-NOHA (acetate) could decrease IL-6 and VEGF plasma levels in AIA rats. Whereas, the treatment did not modify arthritis severity in AIA rats. |
| 产品描述 | nor-NOHA (acetate) (alpha-amino acid N(omega) -Hydroxy-Nor-L-arginine) is a potent and reversible selective arginase inhibitor, nor-NOHA (acetate) is about 40-fold more potent than NOHA to inhibit the hydrolysis of l-arginine to l-ornithine catalyzed by unstimulated murine macrophages (nor-NOHA IC(50) values 12 ±5µM[4]. nor-NOHA (acetate) effectively induced apoptosis in ARG2-expressing cells under hypoxia but not normoxia. Co-treatment with nor-NOHA (acetate) overcame hypoxia-mediated resistance towards BCR-ABL1 kinase inhibitors. its anti-leukemic activity was independent of ARG2 inhibition. nor-NOHA (acetate) has significant but off-target anti-leukemic activity among ARG2-expressing hypoxic cells[3]. nor-NOHA (acetate) could inhibit the proliferation and induce the apoptosis of HepG2 cells. nor-NOHA (acetate) inhibited the invasion and migration of HepG2 cells. These data indicated that nor-NOHA (acetate) could induce cell apoptosis and inhibit the ability of invasion and migration of HepG2 cells by inhibiting Arg1[1].Supplementation of nor-NOHA (acetate) in BMEC(bovine mammary epithelial cells) reduced cellular proliferation and casein synthesis. Addition of Arg to nor-NOHA (acetate) resulted in cellular proliferation and casein synthesis similar to that of nor-NOHA (acetate) alone. In contrast, addition of Orn to the medium with nor-NOHA (acetate) increased the synthesis of casein and cellular proliferation compared with nor-NOHA (acetate)[6]. nor-NOHA (acetate) treatment could fully restore the aortic response to Ach to that of healthy rats.Such beneficial effect was mediated by an increase in NOS activity and EDHF and reduced superoxide anion production, nor-NOHA (acetate) inhibited arginase activity in aorta with IC50 less than 1 µm[2].In Chinese Holstein cows .The activity of enzymes related to Arg metabolism, milk protein synthesis, and expression of AA transporters was determined. The infusion of nor-NOHA (acetate) decreased the activity of arginase. In addition, the infusion of nor-NOHA (acetate) also reduced protein and fat synthesis in milk but had no effect on milk yield[5].Hyperthyroidism in rats is associated with the increased expression and activity of arginase in aorta, heart, and kidney. Chronic arginase inhibition with nor-NOHA (acetate) suppresses the characteristic hemodynamic manifestations of hyperthyroidism in association with a reduced oxidative stress[7]. References: |
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