规格 | 价格 | 库存 | 数量 |
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5mg |
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10mg |
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25mg |
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50mg |
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100mg |
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250mg |
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500mg |
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Other Sizes |
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靶点 |
p53
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体外研究 (In Vitro) |
据称,缩氨基硫脲 COTI-2 可以促进突变型 p53 的重新折叠并恢复野生型 p53 的功能。在纳摩尔浓度下,它可有效对抗多种来源的人类肿瘤细胞系,并通过细胞凋亡导致细胞死亡[1]。在体外和体内,COTI-2 对多种人类癌症的多种癌细胞系都非常有效。在两种激酶测定中评估的来自重要癌症相关激酶途径的 200 多种激酶并未被 COTI-2 显着抑制,并且 COTI-2 不会抑制 Hsp90 的 ATP 酶活性,这是一种广泛分布的分子伴侣,对细胞存活和细胞周期调节至关重要[2 ]。
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体内研究 (In Vivo) |
在 10 mg/kg 的剂量下,COTI-2 显着减缓了人类结直肠肿瘤 HT-29 异种移植物的生长。在低至 3 mg/kg 的剂量下,COTI-2 也显着减缓了 SHP-77 SCLC 异种移植模型中肿瘤的生长。 OVCAR-3、MDA-MB-231 和 U87-MG 异种移植物生长均因其治疗而延迟。 COTI-2 治疗在体内显示出安全的毒性特征。正如体外数据所示,COTI-2 选择性地靶向多种人类癌细胞系,同时对正常细胞的负面影响最小[2]。
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酶活实验 |
使用 AMBIT BIOSCIENCES KINOMESCAN 测定法测试 COTI-2 与 227 种激酶的相互作用。简而言之,用于激酶测定的亲和树脂是通过用生物素化小分子配体在 25°C 下处理链霉亲和素包被的磁珠 30 分钟来生产的。用过量的生物素封闭配体珠子,然后在封闭缓冲液(1% BSA、0.05% Tween 20、1 mM DTT)中清洗,这有助于去除未结合的配体并减少非特异性结合。在一种结合缓冲液(20% SeaBlock、0.17× PBS、0.05% Tween 20、6 mM DTT)中,将噬菌体裂解物、配体亲和珠和 COTI-2 混合。最终体积为 0.1 mL,所有反应均在已用封闭缓冲液预处理的聚苯乙烯 96 孔板中进行。
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细胞实验 |
将SHP-77细胞与不同浓度的COTI-2一起培养48小时。然后用 1X 冷 PBS 洗涤细胞两次,然后用膜联蛋白 V 和 7AAD 染色。简而言之,将 1 × 105 个细胞用 5 μl 的膜联蛋白 V 和 7AAD 处理,然后将它们在室温下于黑暗中静置 15 分钟。然后将 400 μl 剂量的 1X 结合缓冲液注射到细胞中。
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动物实验 |
SHP-77 and HT-29 cells are injected into the flanks of NCr-nu mice (2×106 cells per injection site) using 50% matrigel (n = 5 mice per group). With regard to SHP-77 xenografts, COTI-2 therapy is started before palpable tumors appear. Animals are given 3 mg/kg of COTI-2 (once every two days, up to 38 days) a day after SHP-77 cells are injected into them. Standard caliper measurements are used to estimate the size of tumors at 5, 10, 17, 24, and 38 days. The ability of COTI-2 to inhibit the growth of established tumors is evaluated in the context of HT-29 xenografts. Before beginning IP treatment with COTI-2 (10 mg/kg, 5 days a week for 7 weeks) or saline IP, HT-29 xenografts are allowed to reach a size of 200 mm3. Every 4 days, caliper measurements are used to measure tumor growth.
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参考文献 | |
其他信息 |
Mutant p53 Activator COTI-2 is an orally available third generation thiosemicarbazone and activator of mutant forms of the p53 protein, with potential antineoplastic activity. Upon oral administration, mutant p53 activator COTI-2 targets and binds to the misfolded mutant forms of the p53 protein, which induces a conformational change that normalizes p53 and restores its activity. This induces apoptosis in tumor cells in which the p53 protein is mutated. In addition, COTI-2 inhibits the activation of Akt2 and prevents the activation of the PI3K/AKT/mTOR pathway, thereby inducing apoptosis in cancer cells in which this pathway is overexpressed. p53, a tumor suppressor protein, plays a key role in controlling cellular proliferation and survival. High levels of mutant p53 are seen in many cancers and are associated with uncontrolled cellular growth.
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分子式 |
C19H22N6S
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分子量 |
366.48
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精确质量 |
366.162
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元素分析 |
C, 62.27; H, 6.05; N, 22.93; S, 8.75
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CAS号 |
1039455-84-9
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相关CAS号 |
1204956-74-0 (HCl);1039455-84-9;
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PubChem CID |
91810660
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外观&性状 |
Light yellow to yellow solid powder
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密度 |
1.3±0.1 g/cm3
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沸点 |
574.1±60.0 °C at 760 mmHg
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闪点 |
301.0±32.9 °C
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蒸汽压 |
0.0±1.6 mmHg at 25°C
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折射率 |
1.715
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LogP |
0.79
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tPSA |
88.7
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氢键供体(HBD)数目 |
1
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氢键受体(HBA)数目 |
5
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可旋转键数目(RBC) |
2
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重原子数目 |
26
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分子复杂度/Complexity |
516
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定义原子立体中心数目 |
0
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SMILES |
S=C(N/N=C1\C2C(=CC=CN=2)CCC\1)N1CCN(C2C=CC=CN=2)CC1
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InChi Key |
UTDAKQMBNSHJJB-UHFFFAOYSA-N
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InChi Code |
InChI=1S/C19H22N6S/c26-19(23-22-16-7-3-5-15-6-4-10-21-18(15)16)25-13-11-24(12-14-25)17-8-1-2-9-20-17/h1-2,4,6,8-10H,3,5,7,11-14H2,(H,23,26)
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化学名 |
N-(6,7-dihydro-5H-quinolin-8-ylideneamino)-4-pyridin-2-ylpiperazine-1-carbothioamide
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别名 |
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HS Tariff Code |
2934.99.9001
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存储方式 |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
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运输条件 |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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溶解度 (体外实验) |
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溶解度 (体内实验) |
配方 1 中的溶解度: ≥ 0.67 mg/mL (1.83 mM) (饱和度未知) in 10% DMSO + 90% Corn Oil (这些助溶剂从左到右依次添加,逐一添加), 澄清溶液。
例如,若需制备1 mL的工作液,可将100 μL 6.7 mg/mL 澄清 DMSO 储备液加入900 μL 玉米油中,混合均匀。 请根据您的实验动物和给药方式选择适当的溶解配方/方案: 1、请先配制澄清的储备液(如:用DMSO配置50 或 100 mg/mL母液(储备液)); 2、取适量母液,按从左到右的顺序依次添加助溶剂,澄清后再加入下一助溶剂。以 下列配方为例说明 (注意此配方只用于说明,并不一定代表此产品 的实际溶解配方): 10% DMSO → 40% PEG300 → 5% Tween-80 → 45% ddH2O (或 saline); 假设最终工作液的体积为 1 mL, 浓度为5 mg/mL: 取 100 μL 50 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀/澄清;向上述体系中加入50 μL Tween-80,混合均匀/澄清;然后继续加入450 μL ddH2O (或 saline)定容至 1 mL; 3、溶剂前显示的百分比是指该溶剂在最终溶液/工作液中的体积所占比例; 4、 如产品在配制过程中出现沉淀/析出,可通过加热(≤50℃)或超声的方式助溶; 5、为保证最佳实验结果,工作液请现配现用! 6、如不确定怎么将母液配置成体内动物实验的工作液,请查看说明书或联系我们; 7、 以上所有助溶剂都可在 Invivochem.cn网站购买。 |
制备储备液 | 1 mg | 5 mg | 10 mg | |
1 mM | 2.7287 mL | 13.6433 mL | 27.2866 mL | |
5 mM | 0.5457 mL | 2.7287 mL | 5.4573 mL | |
10 mM | 0.2729 mL | 1.3643 mL | 2.7287 mL |
1、根据实验需要选择合适的溶剂配制储备液 (母液):对于大多数产品,InvivoChem推荐用DMSO配置母液 (比如:5、10、20mM或者10、20、50 mg/mL浓度),个别水溶性高的产品可直接溶于水。产品在DMSO 、水或其他溶剂中的具体溶解度详见上”溶解度 (体外)”部分;
2、如果您找不到您想要的溶解度信息,或者很难将产品溶解在溶液中,请联系我们;
3、建议使用下列计算器进行相关计算(摩尔浓度计算器、稀释计算器、分子量计算器、重组计算器等);
4、母液配好之后,将其分装到常规用量,并储存在-20°C或-80°C,尽量减少反复冻融循环。
计算结果:
工作液浓度: mg/mL;
DMSO母液配制方法: mg 药物溶于 μL DMSO溶液(母液浓度 mg/mL)。如该浓度超过该批次药物DMSO溶解度,请首先与我们联系。
体内配方配制方法:取 μL DMSO母液,加入 μL PEG300,混匀澄清后加入μL Tween 80,混匀澄清后加入 μL ddH2O,混匀澄清。
(1) 请确保溶液澄清之后,再加入下一种溶剂 (助溶剂) 。可利用涡旋、超声或水浴加热等方法助溶;
(2) 一定要按顺序加入溶剂 (助溶剂) 。
NCT Number | Recruitment | interventions | Conditions | Sponsor/Collaborators | Start Date | Phases |
NCT02433626 | Unknown | Drug: COTI2 Drug: Cisplatin |
Ovarian Cancer HNSCC |
Critical Outcome Technologies Inc. | December 2015 | Phase 1 |
A.COTI-2, a third generation thiosemicarbazone, was designed using the CHEMSAS computational platform.B.Human cancer cell lines were treated with COTI-2.Tumor cell proliferation was examined 72 h after treatment with COTI-2. The IC50values were calculated from four independent experiments. Error bars indicate SEM.Oncotarget. 2016 Jul 5; 7(27): 41363–41379. th> |
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COTI-2 is significantly more effective than cetuximab or erlotinib in inhibiting colorectal cancer cell line proliferation.Oncotarget. 2016 Jul 5; 7(27): 41363–41379. td> |
Human glioblastoma cell lines are sensitive to COTI-2 treatment.Oncotarget. 2016 Jul 5; 7(27): 41363–41379. td> |
COTI-2 induces apoptosis in human cancer cells.Oncotarget. 2016 Jul 5; 7(27): 41363–41379. th> |
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COTI-2 treatment inhibits human HT-29 and SHP-77 xenograft growth.Oncotarget. 2016 Jul 5; 7(27): 41363–41379. td> |
COTI-2 treatment delays U87-MG xenograft growth.Oncotarget. 2016 Jul 5; 7(27): 41363–41379. td> |
COTI-2 treatment inhibits OVCAR-3 xenograft growth.Oncotarget. 2016 Jul 5; 7(27): 41363–41379. th> |
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COTI-2 demonstrates a safe toxicity profilein vivo.Oncotarget. 2016 Jul 5; 7(27): 41363–41379. td> |
Refolding and reactivation of missense-mutant p53.Nat Rev Cancer.2018 Feb;18(2):89-102. td> |