- Rac GTPase fragment
- EHT 1864
- ZCL278
- AS 1892802
- K-Ras(G12C) inhibitor 6
| NSC 23766Selective inhibitor of Rac1-GEF interaction. |
Sample solution is provided at 25 µL, 10mM.
Nature.2017 Jan 19;541(7637):417-420.
Nature.2018 Nov;563(7731):407-411.Nature.2018 Jun 13.Nature.2018 Jun 27.Nature.2018 Mar 29;555(7698):673-677.Nature.2017 Sep 7;549(7670):96-100.Nature.2016 Apr 21;532(7599):398-401.
Science.2016 Aug 5;353(6299)594-8Nat Nanotechnol.2017 Dec;12(12):1190-1198.Nature Biotechnology.2017 Jun;35(6):569-576Nat Med.2018 Sep 17.Cell.2018 Dec 21. pii: S0092-8674(18)31561-7.Cell.Available online 25 October 2018.Cell.2018 Sep 27. pii: S0092-8674(18)31183-8.Cell.2018 Jun 28;174(1):172-186.e21.Cell.2018 Feb 22;172(5):1007-1021.e17.Cell.2017 Nov 30;171(6):1284-1300.e21.Cell.2017 Aug 17. pii: S0092-8674(17)30869-3.Cell.2017 Jul 13;170(2):312-323Nat Med.2018 Jan 29.Nat Med.2017 Nov;23(11):1342-1351.Cell.2017 Apr 6;169(2):286-300.Cell.2015 Aug 27;162(5):987-1002.Cell.2015 Feb 12;160(4):729-44.Nature Medicine.2017 Apr;23(4):493-500.Cancer Cell.2018 May 14;33(5):905-921.e5.Cancer Cell.2018 Apr 9;33(4):752-769.e8.Cancer Cell.2018 Mar 12;33(3):401-416.e8.Cancer Cell.2017 Aug 14;32(2):253-267.e5.Nat Methods.2018 Jul;15(7):523-526.Cell Stem Cell.2018 May 3;22(5):769-778.e4.Cell Stem Cell.2017 Nov 20. pii: S1934-5909(17)30375-2.Quality Control & MSDS
- View current batch:
- Purity = 98.57%
- COA (Certificate Of Analysis)
- HPLC
- NMR (Nuclear Magnetic Resonance)
- MSDS (Material Safety Data Sheet)
- Datasheet
Chemical structure
| Description | NSC 23766 is an inhibitor of Rac GTPase targeting Rac activation by guanine nucleotide exchange factors (GEFs) with an IC50 value of 50 μM. | |||||
| Targets | Rac GTPase | |||||
| IC50 | 50 μM | |||||
| Kinase experiment [1]: | |
Rho GTPase activity assay | Cells were grown in log phase in a 10-cm dish, and were starved in 0.5% serum medium or indicated otherwise for 24 h before lysis in a buffer containing 20 mM Tris HCl (pH 7.6), 100 mM NaCl, 10 mM MgCl2, 1% Nonidet P-40, 10% glycerol, and 1 × protease inhibitor mixture. Lysates were clarified, the protein concentrations were normalized, and the GTP-bound Rac1 in the lysates was measured by an effector domain pull-down assay. For the His6-PAK1 PBD pull-down assay, cell lysates were incubated with Ni2+-agarose-immobilized His6-PAK1 PBD domain (~ 1 μg each) purified from E. coli for 30 min. The Ni2+-agarose co-precipitates were washed twice in the wash buffer and analyzed by immunoblotting with anti-Rac1 monoclonal antibody. |
| Cell experiment [2]: | |
Cell lines | Human breast cancer cell lines MDA-MB-231 and MDA-MB-468 as well as the MCF12A normal mammary epithelial cell line |
Preparation method | The solubility of this compound in DMSO is >10 mM. General tips for obtaining a higher concentration: Please warm the tube at 37℃ for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below -20℃ for several months. |
Reaction Conditions | 0 ~ 100 μM; 2 d |
Applications | NSC 23766 inhibited cell growth and induced apoptosis. NSC 23766 dose-dependently decreased the viability of MDA-MB-468 and MDA-MB-231 cells, with IC50 of ~ 10 μM, but had little effect on the survival of the MCF12A normal mammary epithelial cells. After 24-h exposure to NSC 23766, MDA-MB-231 cells exhibited an increase from 41% to 65% in G1 phase and a concomitant decrease in S and G2-M phases. 100 μM NSC 23766 induced a six-fold increase of apoptotic MDA-MB-468. |
| Animal experiment [3]: | |
Animal models | C57BL/6 mice |
Dosage form | 2.5 mg/kg; i.p. |
Applications | In the ‘‘poorly mobilizing’’ C57BL/6 mice, intraperitoneal administration of NSC 23766 (2.5 mg/kg) induced a two-fold increase in circulating hematopoietic stem cells/progenitors 6 hr after injection. |
Other notes | Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal. |
References: [1]. Gao Y1, Dickerson JB, Guo F, Zheng J, Zheng Y. Rational design and characterization of a Rac GTPase-specific small molecule inhibitor. Proc Natl Acad Sci U S A. 2004 May 18;101(20):7618-23. [2]. Yoshida T, Zhang Y, Rivera Rosado LA, Chen J, Khan T, Moon SY, Zhang B. Blockade of Rac1 activity induces G1 cell cycle arrest or apoptosis in breast cancer cells through downregulation of cyclin D1, survivin, and X-linked inhibitor of apoptosis protein. Mol Cancer Ther. 2010 Jun;9(6):1657-68. [3]. Akbar H1, Cancelas J, Williams DA, Zheng J, Zheng Y. Rational design and applications of a Rac GTPase-specific small molecule inhibitor. Methods Enzymol. 2006;406:554-65. | |
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| Cas No. | 1177865-17-6 | SDF | Download SDF |
| Chemical Name | 6-N-[2-[5-(diethylamino)pentan-2-ylamino]-6-methylpyrimidin-4-yl]-2-methylquinoline-4,6-diamine | ||
| Canonical SMILES | CCN(CC)CCCC(C)NC1=NC(=CC(=N1)NC2=CC3=C(C=C2)N=C(C=C3N)C)C | ||
| Formula | C24H35N7.3HCl | M.Wt | 530.96 |
| Solubility | ≥26.55mg/mL in DMSO | Storage | Store at -20°C |
| Physical Appearance | A solid | Shipping Condition | Evaluation sample solution : ship with blue ice.All other available size:ship with RT , or blue ice upon request |
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. | ||
NSC-23766 is a specific inhibitor of Rac with IC50 of 50μM.
NSC-23766 blocks the activation of Rac 1 through binding the GEFs including Trio and Tiam 1 [1]. In human dermal microvascular endothelial cells, NSC-23766 decreased trans-endothelial electrical resistance and caused the intercellular gap formation. Inhibition of Rac 1 by NSC-23766 shortly reduced endothelial barrier functions as revealed by measurement of TER and the appearance of intracellular gaps [2]. In the mucous cell of the intestine, inhibition of Rac1 either by NSC-23766 protected cells from TNF-α-induced apoptosis by inhibiting caspase-3, -8 and -9 activities. Inhibition of Rac1 significantly prevented TNF-α-induced activation of JNK1/2, but did not modulate TNF-α-induced ERK1/2, Akt and p38 MAPK activity [3].
References:[1]. Gao Y, Dickerson JB, Guo F, Zheng J, Zheng Y. Rational design and characterization of a Rac GTPase-specific small molecule inhibitor. Proc Natl Acad Sci U S A. 2004 May 18;101(20):7618-23. [2]. Baumer Y, Spindler V, Werthmann RC, Bünemann M, Waschke J. Role of Rac 1 and cAMP in endothelial barrier stabilization and thrombin-induced barrier breakdown. J Cell Physiol. 2009 Sep;220(3):716-26. [3]. Jin S1, Ray RM, Johnson LR. Rac1 mediates intestinal epithelial cell apoptosis via JNK. Am J Physiol Gastrointest Liver Physiol. 2006 Dec;291(6):G1137-47.
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但在干冰或-70℃冰箱中保存的细胞，活力下降很快，当然细胞与细胞之间敏感性不同。有实验验证保存在-70℃冰箱中的细胞6个月后活力损失超过50%。ATCC证明在干冰中人类细胞4个月活力损失殆尽，小鼠的细胞可到6个月。
2×miRcute。
伤,有必要使用含有DMSO冷冻保护剂。 DMSO能够快速穿透细胞膜进入细胞中,降低冰点、延缓冻存过程, 同时提高细胞内离子浓度,
减少细胞内冰晶的形成,从而减少细胞损伤。深低温时二甲基亚砜的细胞毒性受到抑制。复苏时动作要快，尽快洗掉二甲基亚砜，否则会造成对细胞严重的毒性。二
甲基亚砜（DMSO）是目前最好的细胞冻存保护剂，但也是一种以细胞毒性很大的化学试验剂。研究结果表明，培养液中DMSO浓度为10%时，细胞生长抑制
率近100%；1‰浓度时抑制率为35%，即使是0.04‰的浓度，DMSO对细胞的生长也有不利的影响。
1. 净化工作台
2. 离心机
3. 恒温水浴箱
4. 冰箱（4℃、-20℃、-70℃）
5. 倒置相差显微镜
6. 培养箱
7. 液氮冰箱
（二）玻璃器皿
1. 吸管（弯头、直头）
2. 培养瓶
3. 玻璃瓶（250ml、100ml）
4. 废液缸
（三）塑料器皿
1. 吸头
2. 枪头
3. 胶塞
4. 移液管（10ml）
5. 15ml离心管
6. 冻存管（1～2ml）
（四）其他物品
1. 微量加样枪
2. 红血球计数板
3. 记号笔
4. 医用橡皮膏
5. 移液枪
（五）试剂
1. D-Hanks液
2. 小牛血清
3. 培养液
4. 双抗（青霉素、链霉素）
5. 胰蛋白酶（0.08%）
6. 1NHCl
7. 7.4%NaHCO3
8. DMSO（分析纯）或无色新鲜甘油 （一）细胞冻存
1. 配制含10%DMSO或甘油、10～20%小牛血清的冻存培养液；
2. 取对数生长期的细胞，用胰蛋白酶把单层生长的细胞消化下来，悬浮生长的细胞则直接将细胞移至15ml离心管中；
3. 离心1000rpm，5min；
4. 去除胰蛋白酶及旧的培养液，加入适量配制好的冻存培养液，用吸管轻轻吹打使细胞均匀，计数，调节冻存液中细胞的最终密度为5×106/ml～1×107/ml；
5. 将细胞分装入冻存管中，每管1～1.5 ml；
6. 在冻存管上标明细胞的名称，冻存时间及操作者；
7. 冻存：标准的冻存程序为降温速率-1～-2℃/ min；当温度达-25℃以下时，可增至-5℃～-10℃/min；到-100℃时，则可迅速浸入液氮中。也可将装有细胞的冻存管放入-20℃冰箱2h ，然后放入-70℃冰箱中过夜，取出冻存管，移入液氮容器内。
（二） 细胞复苏
1. 从液氮容器中取出冻存管，直接浸入37℃温水中，并不时摇动令其尽快融化。
2. 从37℃水浴中取出冻存管，打开盖子，用吸管吸出细胞悬液，加到离心管并滴加10倍以上培养液，混匀；
3. 离心， 1000rpm，5min；
4. 弃去上清液，加入含10%小牛血清培养液重悬细胞，计数，调整细胞密度，接种培养瓶，37℃培养箱静置培养；
5. 次日更换一次培养液，继续培养。 1．从增殖期到形成致密的单层细胞以前的培养细胞都可以用于冻存，但最好为对数生长期细胞。在冻存前一天最好换一次培养液；
2．将冻存管放入液氮容器或从中取出时，要做好防护工作，以免冻伤；
3．冻存和复苏最好用新配制的培养液。向左转|向右转
