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Nitroaspirin Sale

(Synonyms: 2-乙酰氧基苯甲酸-3-硝酸甲基苯酯,NCX 4016) 目录号 : GC36747

Nitroaspirin (NCX 4016) 是一氧化氮 (NO) 供体和阿司匹林的硝基衍生物,Aspirin 与 Nitroaspirin 联合以抑制环加氧酶。Nitroaspirin (NCX 4016) 具有抗血栓形成和抗血小板特性,并作为 COX-1 的直接和不可逆抑制剂。Nitroaspirin (NCX 4016) 通过下调 EGFR/PI3K/STAT3 信号传导和调节 Bcl-2 家族蛋白,在顺铂耐药人卵巢癌细胞中引起细胞周期停滞和凋亡。

Nitroaspirin Chemical Structure

Cas No.:175033-36-0

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产品描述

Nitroaspirin (NCX 4016) is a nitric oxide (NO) donor and a nitro-derivative of Aspirin, which combines with Nitroaspirin to inhibit cyclooxygenase. Nitroaspirin (NCX 4016) has antithrombotic and anti-platelet properties and acts as a direct and irreversible inhibitor of COX-1. Nitroaspirin (NCX 4016) causes significant induction of cell cycle arrest and apoptosis in Cisplatin-resistant human ovarian cancer cells via down-regulation of EGFR/PI3K/STAT3 signaling and modulation of Bcl-2 family proteins[1][2][3][4]. COX-1

[1]. Selvendiran K, et al. NCX-4016, a nitro-derivative of aspirin, inhibits EGFR and STAT3 signaling and modulates Bcl-2 proteins in cisplatin-resistant human ovarian cancer cells and xenografts. Cell Cycle. 2008 Jan 1;7(1):81-8. [2]. Bertuglia S, et al. Antioxidant activity of nitro derivative of aspirin against ischemia-reperfusion in hamster cheekpouch microcirculation. Am J Physiol Gastrointest Liver Physiol. 2004 Mar;286(3):G437-43. [3]. Corazzi T, et al. Direct and irreversible inhibition of cyclooxygenase-1 by nitroaspirin (NCX 4016). J Pharmacol Exp Ther. 2005 Dec;315(3):1331-7. [4]. Selvendiran K, et al. NCX-4016, a nitro-derivative of aspirin, inhibits EGFR and STAT3 signaling and modulates Bcl-2 proteins in cisplatin-resistant human ovarian cancer cells and xenografts. Cell Cycle. 2008 Jan 1;7(1):81-8.

Chemical Properties

Cas No. 175033-36-0 SDF
别名 2-乙酰氧基苯甲酸-3-硝酸甲基苯酯,NCX 4016
Canonical SMILES O=C(OC1=CC=CC(CO[N+]([O-])=O)=C1)C2=CC=CC=C2OC(C)=O
分子式 C16H13NO7 分子量 331.28
溶解度 Soluble in DMSO 储存条件 Store at -20°C
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1 mM 3.0186 mL 15.093 mL 30.1859 mL
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10 mM 0.3019 mL 1.5093 mL 3.0186 mL
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Research Update

Nitroaspirin plus clopidogrel versus aspirin plus clopidogrel against platelet thromboembolism and intimal thickening in mice

Thromb Haemost 2005 Mar;93(3):535-43.PMID:15735806DOI:10.1160/TH04-07-0464.

Clopidogrel plus aspirin is the treatment of choice for patients undergoing percutaneous, coronary interventions with stenting, but it does not prevent restenosis. NCX-4016, a nitric oxide-releasing aspirin (Nitroaspirin), exerts a wider range of antiplatelet actions compared to aspirin, superior antithrombotic activity and reduces restenosis after arterial injury in animals. The aim of the present study was to compare the combination of Nitroaspirin plus clopidogrel with aspirin plus clopidogrel in a model of platelet pulmonary thromboembolism, bleeding and intimal thickening in mice. Drugs were administered orally for 5 days; the antithrombotic effects were evaluated against collagen plus epinephrine-induced pulmonary thromboembolism, the haemorrhagic effects by tail transection bleeding time and the effects on neointima proliferation by histomorphology of photochemically injured femoral arteries. Lung platelet emboli were reduced significantly and more effectively by Nitroaspirin plus clopidogrel (-56%, p<0.05 vs control) than by aspirin plus clopidogrel (-26%, p<0.05 vs control). Ex vivo platelet aggregation was inhibited maximally by Nitroaspirin plus clopidogrel. Aspirin plus clopidogrel strikingly prolonged the bleeding time while Nitroaspirin plus clopidogrel induced a lesser prolongation. Nitroaspirin plus clopidogrel significantly reduced intimal thickening of the femoral artery while aspirin plus clopidogrel was ineffective. Nitroaspirin plus clopidogrel is more effective and less prohaemorrhagic than aspirin plus clopidogrel in mice; provided these data are confirmed in other animal models, Nitroaspirin plus clopidogrel may represent a new regimen to be tested in patients undergoing coronary revascularization procedures.

A comparison of the anti-inflammatory and anti-nociceptive activity of Nitroaspirin and aspirin

Br J Pharmacol 2000 Jan;129(2):343-50.PMID:10694241DOI:10.1038/sj.bjp.0703064.

1. Nitroaspirin (2.5 - 50 mg kg(-1), i.p. or 2.5 - 100 mg kg(-1), p.o.) and aspirin (2.5 - 100 mg kg(-1), i.p. or p.o.) exhibit anti-inflammatory activity in the carrageenan-induced hindpaw oedema model in the rat. When administered i.p., Nitroaspirin was a more effective anti-oedema agent than aspirin particularly in the 'early' phase (i.e. up to 60 min) of the response. The ED(50) values for Nitroaspirin and aspirin as inhibitors of the 'late' phase response (measured at 180 min) were 64.3 micromol kg(-1) and >555 micromol kg(-1), respectively. When administered p.o., neither Nitroaspirin nor aspirin exhibited significant anti-inflammatory activity in the 'early' phase and were of similar potency in the 'late' phase. Thus, at the highest dose used (100 mg kg(-1), 360 min) orally administered Nitroaspirin (aspirin in parenthesis) inhibited oedema formation by 46.9+/-1.6% (47.2+/-3.8%, both n=6, P<0.05). 2. Nitroaspirin and aspirin (25 - 200 mg kg(-1), p.o.) caused dose-related inhibition of the hyperalgesia to mechanical stimulation following intraplantar injection of carrageenan in the rat. ED(50) values were 365 micromol kg(-1) and 784 micromol kg(-1), respectively. Neither drug influenced the threshold for mechanical stimulation in the contralateral (i.e. untreated) hindpaw. 3. Nitroaspirin and aspirin (2.5 - 100 mg kg(-1), p.o.) caused dose-related inhibition of acetic acid induced abdominal constrictions in the mouse (ED(50) values of 154.7 micromol kg(-1) and 242.8 micromol kg(-1), respectively). 4. Nitroaspirin and aspirin (>200 mg kg(-1), p.o.) reduced the 'late' phase (but not the 'early' phase) of the formalin-induced hindpaw licking assay in the mouse. Similarly, Nitroaspirin and aspirin (>50 mg kg(-1), p.o.) prolonged tail withdrawal latency following application of a noxious heat stimulus in the mouse.

Nitroaspirin (NCX-4016), an NO donor, is antiangiogenic through induction of loss of redox-dependent viability and cytoskeletal reorganization in endothelial cells

Antioxid Redox Signal 2007 Nov;9(11):1837-49.PMID:17760507DOI:10.1089/ars.2007.1603.

We recently reported that NCX-4016, a derivative of aspirin containing a nitro moiety that releases nitric oxide (NO) in a sustained fashion in biologic systems, is a potent cytotoxic agent inhibiting the proliferation of cisplatin-resistant human ovarian cancer cells. Therefore, we hypothesize that NCX-4016 possesses antiangiogenic properties. Our study with the bovine lung microvascular endothelial cells (BLMVECs) revealed that NCX-4016 significantly induced the loss of redox-dependent cell viability in a dose- and time-dependent manner, as assayed by the redox-sensitive Alamar blue cell viability assay. Fluorescence microscopy of cells labeled with NO-specific fluorophore (DAF-FM) confirmed that NCX-4016 generated significant levels of intracellular NO. NO donors, including S-nitroso-N-acetylpenicillamine, spermine NONOate, and isosorbide dinitrite, were less effective in causing loss of cell viability. Thiol-protectant, N-acetylcysteine, significantly attenuated the NCX-4016-induced loss of cell viability, suggesting the role of alteration of thiol-redox status therein. NCX-4016 also suppressed oxygen consumption, decreased transendothelial electrical resistance (EC barrier dysfunction), and induced actin cytoskeletal reorganization in BLMVECs. The in vitro assay with human umbilical vein ECs and BLMVECs revealed that NCX-4016, in a dose-dependent manner, significantly inhibited angiogenesis with almost complete inhibition at a 100-microM concentration, suggesting that NCX-4016 can act as an antiangiogenic drug.

Nitroaspirin corrects immune dysfunction in tumor-bearing hosts and promotes tumor eradication by cancer vaccination

Proc Natl Acad Sci U S A 2005 Mar 15;102(11):4185-90.PMID:15753302DOI:10.1073/pnas.0409783102.

Active suppression of tumor-specific T lymphocytes can limit the immune-mediated destruction of cancer cells. Of the various strategies used by tumors to counteract immune attacks, myeloid suppressors recruited by growing cancers are particularly efficient, often resulting in the induction of systemic T lymphocyte dysfunction. We have previously shown that the mechanism by which myeloid cells from tumor-bearing hosts block immune defense strategies involves two enzymes that metabolize L-arginine: arginase and nitric oxide (NO) synthase. NO-releasing aspirin is a classic aspirin molecule covalently linked to a NO donor group. NO aspirin does not possess direct antitumor activity. However, by interfering with the inhibitory enzymatic activities of myeloid cells, orally administered NO aspirin normalized the immune status of tumor-bearing hosts, increased the number and function of tumor-antigen-specific T lymphocytes, and enhanced the preventive and therapeutic effectiveness of the antitumor immunity elicited by cancer vaccination. Because cancer vaccines and NO aspirin are currently being investigated in independent phase I/II clinical trials, these findings offer a rationale to combine these treatments in subjects with advanced neoplastic diseases.

Direct and irreversible inhibition of cyclooxygenase-1 by Nitroaspirin (NCX 4016)

J Pharmacol Exp Ther 2005 Dec;315(3):1331-7.PMID:16144976DOI:10.1124/jpet.105.089896.

Benzoic acid, 2-(acetyl-oxy)-3-[(nitrooxy)methyl]phenyl ester (NCX 4016), a new drug made by an aspirin molecule linked, through a spacer, to a nitric oxide (NO)-donating moiety, is now under clinical testing for the treatment of atherothrombotic conditions. Aspirin exerts its antithrombotic activity by irreversibly inactivating platelet cyclooxygenase (COX)-1. NCX 4016 in vivo undergoes metabolism into deacetylated and/or denitrated metabolites, and it is not known whether NCX 4016 needs to liberate aspirin to inhibit COX-1, or whether it can block it as a whole molecule. The aim of our study was to evaluate the effects of NCX 4016 and its analog or metabolites on platelet COX-1 and whole blood COX-2 and on purified ovine COX (oCOX)-1 and oCOX-2. In particular, we have compared the mechanism by which NCX 4016 inhibits purified oCOX enzymes with that of aspirin using a spectrophotometric assay. All the NCX 4016 derivatives containing acetylsalicylic acid inhibited the activity of oCOX-1 and oCOX-2, whereas the deacetylated metabolites and the nitric oxide-donating moiety were inactive. Dialysis experiments showed that oCOX-1 inhibition by NCX 4016, similar to aspirin, is irreversible. Reversible COX inhibitors (indomethacin) or salicylic acid incubated with the enzyme before NCX 4016 prevent the irreversible inhibition of oCOX-1 by NCX 4016 as well as by aspirin. In conclusion, our data show that NCX 4016 acts as a direct and irreversible inhibitor of COX-1 and that the presence of a spacer and NO-donating moiety in the molecule slows the kinetics of COX-1 inhibition by NCX 4016, compared with aspirin.