- ￥600 - 3200
- 上海莼试
- CS-01Y77393
- 国产
- 2025年07月16日
9 年钻石会员
企业认证
相关产品推荐更多 >
万千商家帮你免费找货
0 人在求购买到急需产品
- 详细信息
- 文献和实验
- 技术资料
- 库存：
29
- 英文名：
Tilmacoxib (JTE522)
- CAS号：
180200-68-4
- 供应商：
上海莼试
- 保存条件：
Store at -20°C
- 规格：
1mg 5mg 10mg 20mg
本产品仅供科学实验研究使用! 不能用于临床或动物诊断！
产品描述:
Tilmacoxib (JTE522) is a highly selective, time-dependent and irreversible human COX-2 inhibitor with an IC50 of 85 nM in an enzyme assay.Inhibitory activity and the mechanism of action of Tilmacoxib (JTE-522), a novel selective cyclooxygenase (COX)-2 inhibitor, on human COX-1 and COX-2 are investigated and compared with those of reference compounds. In an enzyme assay, Tilmacoxib inhibits yeast-expressed human recombinant COX-2 with an IC50 of 0.085 μM. In contrast, Tilmacoxib does not inhibit human COX-1 prepared from human platelets at concentrations up to 100 μM. In a cell-based assay, Tilmacoxib diminishes lipopolysaccharide-induced prostaglandin E2 production in human peripheral blood mononuclear cells (COX-2) (IC50=15.1 nM). On the other hand, Tilmacoxib is less potent at inhibiting calcium ionophore-induced thromboxane B2 production in washed human platelets (COX-1) (IC50=6.21 μM). Tilmacoxib shows highly selective inhibition of human COX-2, and its activity is more selective than that of other COX-2 inhibitors (NS-398 and SC-58635). Human recombinant COX-2 activity is attenuated by Tilmacoxib in a dose-dependent and time-dependent manner[1]. Inhibition of proliferation of gastric epithelial cells by a cyclooxygenase 2 inhibitor, Tilmacoxib (JTE522), is also mediated by a PGE2-independent pathway Combination of Tilmacoxib and Arachidonic acid results in a marked retardation of wound healing compared to the control, but Tilmacoxib does not completely suppress the increase in cellular PGE2 content following the addition of arachidonate[2].The present experiment is designed to assess the potential chemopreventive properties of Tilmacoxib (JTE-522), a new selective cyclooxygenase-2 inhibitor, on the induction of 1,2-dimethylhydrazine (DMH)-induced colonic aberrant crypt foci (ACF), a marker of rat colon carcinogenesis. A total of 80 male F344 rats are treated with 3 or 10 mg/kg of body weight Tilmacoxib or vehicle by oral gavage five times weekly from the start of the experiment. One week later, rats receive s.c. injections of saline or 20 mg/kg of body weight DMH once weekly for four successive weeks. At the end of 12 weeks after the start of experiment, all rats are sacrificed and colons are evaluated for ACF. 10 mg/kg Tilmacoxib significantly suppresses the total ACF/colon. No inhibitory effect is orved in the 3 mg/kg Tilmacoxib treatment group. Administration of 10 mg/kg Tilmacoxib significantly suppresses ACF formation with a 30% reduction in total ACF/colon (p<0.01). Furthermore, the data on crypt multiplicity show that 10 mg/kg Tilmacoxib significantly reduces the formation of foci containing 1-3 crypts but not foci containing four crypts or more. Administration of the low dose of Tilmacoxib (3 mg/kg) has no inhibitory effects on either the total ACF or crypt multiplicity[3].
化学性质:
规格：1mg 5mg 10mg 20mg
CAS：180200-68-4
别名：N/A
化学名：N/A
分子式：C16H19FN2O3S
分子量：338.4
溶解度：Soluble in DMSO
储存条件：Store at -20°C
General tips：For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.
Shipping Condition: Evaluation sample solution : ship with blue ice All other available size: ship with RT , or blue ice upon request
使用方法:
1. 常用筛选浓度
注意：用来筛选稳转株的工作浓度需要根据细胞类型，培养基，生长条件和细胞代谢率而变化，推荐使用浓度为50-1000μg/mL。对于第一次使用的实验体系建议通过建立杀灭曲线(kill curve)，即剂量反应性曲线，来确定最佳筛选浓度。
一般而言，哺乳动物细胞50-500μg/mL;细菌/植物细胞20-200μg/mL;真菌300-1000μg/mL。
2. 杀灭曲线的建立
注意：为了筛选得到稳定表达目的蛋白的细胞株，需要确定能够杀死未转染宿主细胞的抗生素浓度，可通过建立杀灭曲线(剂量反应曲线)来实现，至少选择5个浓度。
1) 第一天：未转化的细胞按照20-25%的细胞密度铺在合适的培养板上，37℃，CO2培养过夜;注：对于需要更高密度来检测活力的细胞，可增加接种量。
2) 根据细胞类型，设定合适范围内的浓度梯度。以哺乳动物细胞为例，可设定50，100，250，500，750，1000μg/mL。先用去离子水或者PBS buffer按照1:10的比例将母液稀释到5 mg/ml，然后按照下表稀释到相应浓度的工作液。
3) 第二天：替换旧的培养基，换用新鲜配制的含有相应浓度药物的培养基。每个浓度做三个平行孔。
4) 接下来每3-4天更换新的含药物培养基。
5) 按照固定的周期(如每2天)进行活细胞计数来确定阻止未转染细胞生长的恰当浓度。选择在理想的天数(通常是7-10天)内能够杀死绝大多数细胞的浓度为稳定转染细胞筛选用的工作浓度。
3. 稳定转染细胞的筛选
1) 转染48h后，用含有适当浓度的潮霉素B筛选培养基来传代细胞(直接传代或者稀释后传代)。
注意：细胞处于活跃分裂状态时抗生素的杀伤。则当细胞过于稠密，其效率会降低。为了得到较好的筛选效果，最好将细胞稀释至丰度不超过25%
2) 每隔3-4天更换含有药物的筛选培养液。
3) 筛选7天后观察并评估细胞克隆(集落)的形成情况。集落的形成可能还需要一周或者更多的时间，这取决于宿主细胞类型，转染，以及筛选效果。
4) 挑取并转移5-10个抗性克隆于35mm细胞培养板，继续用含药物的筛选培养液维持培养7天。
5) 之后更换正常培养基培养即可。
蛋白酶抑制剂混合物实验步骤:
(1)Tilmacoxib (JTE522)实验开始前将RNA提取液于65℃水浴锅中预热,离心管中加入ME(巯基乙醇),(10mL加80ul,50mL中加入300ul)
(2)取约0.8g菌丝体(液体培养获得的菌丝用真空抽滤即可！固体培养就更好说了),在液氮中迅速磨成精细粉末,装入50mL离心管,按1g材料8mL的量加入预热的RNA提取液,颠倒混匀
(3)65℃水浴3-10 min,期间混匀2-3次
(4)加入等体积的酚(注意是酸酚pH4.5)::yi戊醇(25:24:1)抽提(10,000rpm,4℃,5 min)
(5)取上清,等体积的yi戊醇(24:1)抽提(10,000rpm,4℃,5 min)
(6)加入1/4V体积10M LiCl溶液,4℃放置6h以上(或过夜)
(7)10,000rpm,4℃离心20min
(8)弃上清,用500ul SSTE溶解沉淀
(9)酚::yi戊醇(25:24:1)抽提两次,:yi戊醇(24:1)抽提1次(10,000rpm,4℃,5min)
(10)加2V体积的无水乙醇,在-70℃冰箱沉淀30min以上
(11)12,000rpm,4℃离心20 min
(12)弃上清.沉淀用70%酒精漂洗一次,干燥
(13)加200ul的DEPC处理水溶解
(14)用非变性琼脂糖凝胶电泳和紫外分光光度计扫描检测RNA的质量(在抽提过程中,若蛋白质含量或其它的杂质还较多,可以增加抽提次数)
公司正在出售的产品:
| 产品名称 | Tilmacoxib (JTE522) | 产品货号 | CS-01Y77393 |
| 规格 | 1mg 5mg 10mg 20mg | CAS号 | 180200-68-4 |
| 含量 | >99.50% | 分子式 | C16H19FN2O3S |
| 分子量 | 338.4 | 用途 | 仅供科研研究使用 |
Tilmacoxib (JTE522) is a highly selective, time-dependent and irreversible human COX-2 inhibitor with an IC50 of 85 nM in an enzyme assay.Inhibitory activity and the mechanism of action of Tilmacoxib (JTE-522), a novel selective cyclooxygenase (COX)-2 inhibitor, on human COX-1 and COX-2 are investigated and compared with those of reference compounds. In an enzyme assay, Tilmacoxib inhibits yeast-expressed human recombinant COX-2 with an IC50 of 0.085 μM. In contrast, Tilmacoxib does not inhibit human COX-1 prepared from human platelets at concentrations up to 100 μM. In a cell-based assay, Tilmacoxib diminishes lipopolysaccharide-induced prostaglandin E2 production in human peripheral blood mononuclear cells (COX-2) (IC50=15.1 nM). On the other hand, Tilmacoxib is less potent at inhibiting calcium ionophore-induced thromboxane B2 production in washed human platelets (COX-1) (IC50=6.21 μM). Tilmacoxib shows highly selective inhibition of human COX-2, and its activity is more selective than that of other COX-2 inhibitors (NS-398 and SC-58635). Human recombinant COX-2 activity is attenuated by Tilmacoxib in a dose-dependent and time-dependent manner[1]. Inhibition of proliferation of gastric epithelial cells by a cyclooxygenase 2 inhibitor, Tilmacoxib (JTE522), is also mediated by a PGE2-independent pathway Combination of Tilmacoxib and Arachidonic acid results in a marked retardation of wound healing compared to the control, but Tilmacoxib does not completely suppress the increase in cellular PGE2 content following the addition of arachidonate[2].The present experiment is designed to assess the potential chemopreventive properties of Tilmacoxib (JTE-522), a new selective cyclooxygenase-2 inhibitor, on the induction of 1,2-dimethylhydrazine (DMH)-induced colonic aberrant crypt foci (ACF), a marker of rat colon carcinogenesis. A total of 80 male F344 rats are treated with 3 or 10 mg/kg of body weight Tilmacoxib or vehicle by oral gavage five times weekly from the start of the experiment. One week later, rats receive s.c. injections of saline or 20 mg/kg of body weight DMH once weekly for four successive weeks. At the end of 12 weeks after the start of experiment, all rats are sacrificed and colons are evaluated for ACF. 10 mg/kg Tilmacoxib significantly suppresses the total ACF/colon. No inhibitory effect is orved in the 3 mg/kg Tilmacoxib treatment group. Administration of 10 mg/kg Tilmacoxib significantly suppresses ACF formation with a 30% reduction in total ACF/colon (p<0.01). Furthermore, the data on crypt multiplicity show that 10 mg/kg Tilmacoxib significantly reduces the formation of foci containing 1-3 crypts but not foci containing four crypts or more. Administration of the low dose of Tilmacoxib (3 mg/kg) has no inhibitory effects on either the total ACF or crypt multiplicity[3].
化学性质:
规格：1mg 5mg 10mg 20mg
CAS：180200-68-4
别名：N/A
化学名：N/A
分子式：C16H19FN2O3S
分子量：338.4
溶解度：Soluble in DMSO
储存条件：Store at -20°C
General tips：For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.
Shipping Condition: Evaluation sample solution : ship with blue ice All other available size: ship with RT , or blue ice upon request
使用方法:
1. 常用筛选浓度
注意：用来筛选稳转株的工作浓度需要根据细胞类型，培养基，生长条件和细胞代谢率而变化，推荐使用浓度为50-1000μg/mL。对于第一次使用的实验体系建议通过建立杀灭曲线(kill curve)，即剂量反应性曲线，来确定最佳筛选浓度。
一般而言，哺乳动物细胞50-500μg/mL;细菌/植物细胞20-200μg/mL;真菌300-1000μg/mL。
2. 杀灭曲线的建立
注意：为了筛选得到稳定表达目的蛋白的细胞株，需要确定能够杀死未转染宿主细胞的抗生素浓度，可通过建立杀灭曲线(剂量反应曲线)来实现，至少选择5个浓度。
1) 第一天：未转化的细胞按照20-25%的细胞密度铺在合适的培养板上，37℃，CO2培养过夜;注：对于需要更高密度来检测活力的细胞，可增加接种量。
2) 根据细胞类型，设定合适范围内的浓度梯度。以哺乳动物细胞为例，可设定50，100，250，500，750，1000μg/mL。先用去离子水或者PBS buffer按照1:10的比例将母液稀释到5 mg/ml，然后按照下表稀释到相应浓度的工作液。
3) 第二天：替换旧的培养基，换用新鲜配制的含有相应浓度药物的培养基。每个浓度做三个平行孔。
4) 接下来每3-4天更换新的含药物培养基。
5) 按照固定的周期(如每2天)进行活细胞计数来确定阻止未转染细胞生长的恰当浓度。选择在理想的天数(通常是7-10天)内能够杀死绝大多数细胞的浓度为稳定转染细胞筛选用的工作浓度。
3. 稳定转染细胞的筛选
1) 转染48h后，用含有适当浓度的潮霉素B筛选培养基来传代细胞(直接传代或者稀释后传代)。
注意：细胞处于活跃分裂状态时抗生素的杀伤。则当细胞过于稠密，其效率会降低。为了得到较好的筛选效果，最好将细胞稀释至丰度不超过25%
2) 每隔3-4天更换含有药物的筛选培养液。
3) 筛选7天后观察并评估细胞克隆(集落)的形成情况。集落的形成可能还需要一周或者更多的时间，这取决于宿主细胞类型，转染，以及筛选效果。
4) 挑取并转移5-10个抗性克隆于35mm细胞培养板，继续用含药物的筛选培养液维持培养7天。
5) 之后更换正常培养基培养即可。
蛋白酶抑制剂混合物实验步骤:
(1)Tilmacoxib (JTE522)实验开始前将RNA提取液于65℃水浴锅中预热,离心管中加入ME(巯基乙醇),(10mL加80ul,50mL中加入300ul)
(2)取约0.8g菌丝体(液体培养获得的菌丝用真空抽滤即可！固体培养就更好说了),在液氮中迅速磨成精细粉末,装入50mL离心管,按1g材料8mL的量加入预热的RNA提取液,颠倒混匀
(3)65℃水浴3-10 min,期间混匀2-3次
(4)加入等体积的酚(注意是酸酚pH4.5)::yi戊醇(25:24:1)抽提(10,000rpm,4℃,5 min)
(5)取上清,等体积的yi戊醇(24:1)抽提(10,000rpm,4℃,5 min)
(6)加入1/4V体积10M LiCl溶液,4℃放置6h以上(或过夜)
(7)10,000rpm,4℃离心20min
(8)弃上清,用500ul SSTE溶解沉淀
(9)酚::yi戊醇(25:24:1)抽提两次,:yi戊醇(24:1)抽提1次(10,000rpm,4℃,5min)
(10)加2V体积的无水乙醇,在-70℃冰箱沉淀30min以上
(11)12,000rpm,4℃离心20 min
(12)弃上清.沉淀用70%酒精漂洗一次,干燥
(13)加200ul的DEPC处理水溶解
(14)用非变性琼脂糖凝胶电泳和紫外分光光度计扫描检测RNA的质量(在抽提过程中,若蛋白质含量或其它的杂质还较多,可以增加抽提次数)
公司正在出售的产品:
| Nalox (hydrochloride) | Boc-Arg(Pbf)-OH |
| Fmoc-D-Phe(4-NO2)-OH | BT 苏云金芽孢杆蛋白ELISA检测试剂盒 |
| H-Methioninol | AE 禽脑脊髓炎ELISA检测试剂盒 |
| H-D-Phe-OMe.HCl | OH 植物25羟基维生素D3ELISA检测试剂盒 |
| H-N-Me-Pro-OH | VC 植物维生素CELISA检测试剂盒 |
| Z-Lys-OH | VB6 植物维生素B6ELISA检测试剂盒 |
| H-Glu-OMe | VD 植物维生素DELISA检测试剂盒 |
| H-Met-2-Chlorotrityl Resin | α1-Acid glycoprotein, α1-AGP Elisa Kit |
| Fmoc-Gly-OPfp | COX-2 裸鼠环加氧酶2ELISA检测试剂盒 |
| H-D-Tyr-OH | AFP 裸鼠甲种胎儿球蛋白/甲胎蛋白ELISA检测试剂盒 |
| H-Val-pNA | CC16 裸鼠克拉拉细胞蛋白ELISA检测试剂盒 |
| H-D-Arg(Pbf)-OH | PP 裸鼠蛋白磷酸酶ELISA检测试剂盒 |
| 3-(4-Pyridyl)-D-Alanine.2HCl | Tilmacoxib (JTE522)MMP-9/Gelatinase B 仓鼠基质金属蛋白酶9/明胶酶BELISA检测试剂盒 |
| CIL56 | RANKL 仓鼠核因子κB受活化因子配基ELISA检测试剂盒 |
| ANG 血管生长素ELISA检测试剂盒 | TBG 仓鼠甲状腺结合球蛋白ELISA检测试剂盒 |
风险提示：丁香通仅作为第三方平台，为商家信息发布提供平台空间。用户咨询产品时请注意保护个人信息及财产安全，合理判断，谨慎选购商品，商家和用户对交易行为负责。对于医疗器械类产品，请先查证核实企业经营资质和医疗器械产品注册证情况。
文献和实验相关实验
，例如： http://www.exiqon.com/miRNA-qpcr-designer还有很多软件可供借用，本版内搜索。 leileicui 在： http://www.exiqon.com/miRNA-qpcr-designer，中设计好的引物不给序列，必须在它那里购买，价格也不知道多少钱？有没有可以给出序列的软件或者网站，可以国内找公司合成，这样价格会少很多吧。高手指点下。谢谢 朱小兰522 是啊，我最近买了个，没序列还只能做一百
A High-Efficiency Agrobacterium-Mediated Transformation System of Rice (Oryza sativa L.)
by cocultivating rice calli with Agrobacterium on filter papers moistened with enriched liquid media instead of using solid media (Ozawa, Plant Sci. 176:522–527, 2009; Ozawa and Takaiwa, Plant Sci. 179:333–337, 2010). In this system, the transformation efficiency
ESCO-2185 ESCO 特殊扎带EA475HB-2 EA475HB-2
NA-36 EA613NA-36 ESCO-10039 ESCO 油压扩张器EA208H EA208H ESCO-10038 ESCO 剪钳EA535KA-1 EA535KA-1 ESCO-10037 ESCO 砂轮套件EA522GC-0 EA522GC-0 ESCO-10036 ESCO 密封拔片EA566AD-2 EA566AD-2 ESCO-1310070014 ESCO 扳手EA573AP EA573AP ESCO-10035 ESCO 双头
技术资料暂无技术资料 索取技术资料
Tilmacoxib (JTE522)
￥600 - 3200
