NS-398 (NS398)

製品コードS8433 バッチS843302

印刷

化学情報

Chemical Structure Synonyms N-(2-cyclohexyloxy-4-nitrophenyl)methane sulfonamide Storage
(From the date of receipt)		 3 years -20°C powder
1 years -80°C in solvent
化学式

C13H18N2O5S
分子量 314.36 CAS No. 123653-11-2
Solubility (25°C)* 体外 DMSO 63 mg/mL (200.4 mM)
Water Insoluble
Ethanol Insoluble
体内 （毎回新しく調製した物を用意してください）
Clear solution
5%DMSO 40%PEG300 5%Tween80 50%ddH2O
3.1mg/ml Taking the 1 mL working solution as an example, add 50 μL of 62 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results. 
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

溶剤液（一定の濃度）を調合する

生物活性

製品説明 NS-398 (N-(2-cyclohexyloxy-4-nitrophenyl)methane sulfonamide) is a selective inhibitor of cyclooxygenase-2 (COX-2). The IC50 values for human recombinant COX-1 and -2 are 75 and 1.77 μM, respectively.
in vitro NS-398 inhibits COX-2 enzyme activity in a concentration dependent manner, the IC50 being 3.8 μM, whereas NS-398 at 100μM has no effect on COX-1 activity[1]. At 10 μM, NS-398 treatment results in increased production of COX-2 and the pro-inflammatory cytokine. NS-398 (10 μM) induces apoptosis in LNCaP cells, but not in the more aggressive, androgen-unresponsive C4-2b cells. The C4-2b cells are observed to continue to proliferate when treated with NS-398 and continues to retain malignant phenotype characteristics. NS-398 treatment results in C4-2b cell differentiation into an unusual neuroendocrinelike cell. These neuroendocrine-like cells produces both epithelial (cytokeratin 18 and prostate specific antigen) and neuronal (neuron-specific enolase and chromogranin A) proteins. Furthermore, this C4-2b cellular response to NS-398 is mediated by NF-kB transcription factor activation. NS-398 induces NF-kB and down-regulates Ikβ-α protein expression in LNCaP C4-2b cells[2].
in vivo NS398 could inhibit Cox-2 expression induced by acoustic injury and could attenuate noise-induced hearing threshold shifts and cochlear hair cell loss. The inhibition of Cox-2 by NS398 could attenuate Noise-induced hearing loss（NIHL）and related hair cell damage.[3].

プロトコル(参考用のみ)

細胞アッセイ 細胞株 human prostate carcinoma cell line LNCaP and the LNCaP subline C4-2b
濃度 10 μM
反応時間 24, 48, 72 h
実験の流れ 1×106 cells are plated in six well cluster plates with 2 ml of medium for 24 h. At time point 0, medium was removed, cells were carefully washed with phosphate buffered saline (PBS) and serum free(SF), phenol-red free medium containing 0.5 μg/ml BSA was added. Incubations are continued for an additional 72 h with or without increasing NS-398 concentrations. NS-398 stocks (5 mM) are dissolved in 0.1% dimethylsulfoxide (DMSO). Cells and culture medium are harvested at 24 h time intervals. Dead cells are removed by gentle washing with PBS and cell number determined by direct counting using trypan blue dye exclusion to identify viable cells. DMSO (0.1%) is added to control cultures.
動物実験 動物モデル CD1 mice
投薬量 20 mg/kg
投与方法 i.p.

カスタマーフィードバック

Data from [Data independently produced by , , Oncotarget, 2017, 8(50): 87658-87666]

Selleckの高級品が、幾つかの出版された研究調査結果（以下を含む）で使われた：

Embryo-derive TNF promotes decidualization via fibroblast activation [ Elife, 2023, 12e82970] PubMed: 37458359
Embryo-derive TNF promotes decidualization via fibroblast activation [ Elife, 2023, 12e82970] PubMed: 37458359
COX-2 is required to mediate crosstalk of ROS-dependent activation of MAPK/NF-κB signaling with pro-inflammatory response and defense-related NO enhancement during challenge of macrophage-like cell line with Giardia duodenalis [ PLoS Negl Trop Dis, 2022, 16(4):e0010402] PubMed: 35482821
Celecoxib impairs primary human myoblast proliferation and differentiation independent of cyclooxygenase 2 inhibition [ Physiol Rep, 2022, 10(21):e15481] PubMed: 36325583
PP2 Ameliorates Renal Fibrosis by Regulating the NF-κB/COX-2 and PPARγ/UCP2 Pathway in Diabetic Mice [ Oxid Med Cell Longev, 2021, 2021:7394344] PubMed: 34580604
Cancer-associated fibroblasts educate normal fibroblasts to facilitate cancer cell spreading and T-cell suppression [ Mol Oncol, 2021, 10.1002/1878-0261.13077] PubMed: 34379869
NS398 as a potential drug for autosomal-dominant polycystic kidney disease: Analysis using bioinformatics, and zebrafish and mouse models [ J Cell Mol Med, 2021, 25(20):9597-9608] PubMed: 34551202
Oxidized-LDL inhibits testosterone biosynthesis by affecting mitochondrial function and the p38 MAPK/COX-2 signaling pathway in Leydig cells [ Cell Death Dis, 2020, 11(8):626] PubMed: 32796811
Cyclooxygenase-2 Inhibition Reduces Autophagy of Macrophages Enhancing Extraintestinal Pathogenic Escherichia coli Infection. [ Front Microbiol, 2020, 17;11:708] PubMed: 32362888
Enhanced Effect of IL-1 β-Activated Adipose-Derived MSCs (ADMSCs) on Repair of Intestinal Ischemia-Reperfusion Injury via COX-2-PGE 2 Signaling [ Stem Cells Int, 2020, 17;2020:2803747] PubMed: 32377202

長期の保管のために-20°Cの下で製品を保ってください。

人間や獣医の診断であるか治療的な使用のためにでない。

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