| OTSSP167MELK inhibitor |
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 = 98.81%
- COA (Certificate Of Analysis)
- HPLC
- NMR (Nuclear Magnetic Resonance)
- MSDS (Material Safety Data Sheet)
- Datasheet
Chemical structure
| Description | OTSSP167 is an inhibitor of maternal embryonic leucine zipper kinase (MELK) with IC50 value of 0.41nM . | |||||
| Targets | MELK | |||||
| IC50 | 0.41nM | |||||
| Cell experiment [1]: | |
Cell lines | A549, T47D, DU4475, and 22Rv1 cancer cells |
Preparation method | Limited soluble in DMSO. 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. |
Reacting condition | 30 μM, 37 °C |
Applications | OTSSP167 inhibited A549 (lung), T47D (breast), DU4475 (breast), and 22Rv1 (prostate) cancer cells with the IC50 values of 6.7, 4.3, 2.3, and 6.0 nM, respectively. OTSSP167 inhibited the phosphorylation of PSMA1 and DBNL. OTSSP167 suppressed mammosphere formation of breast cancer cells through the inhibition of PSMA1 phosphorylation. |
| Animal experiment [1]: | |
Animal models | Mice bearing MDA-MB-231 xenografts, mice carrying A549 (lung cancer) xenografts |
Dosage form | Intravenous administration, 20 mg/kg, once every two days; Oral administration, 10 mg/kg once a day |
Application | In mice bearing MDA-MB-231 xenografts, intravenous administration of OTSSP167 at 20 mg/kg once every two days resulted in tumor growth inhibition (TGI) of 73%. Oral administration at 10 mg/kg once a day revealed TGI of 72%. In mice carrying A549 (lung cancer) xenografts, treatment with 1, 5, and 10 mg/kg once a day of OTSSP167 by intravenous administration revealed TGI of 51, 91, and 108%, respectively and those by oral administration of 5 and 10 mg/kg once a day revealed TGI of 95 and 124%, respectively. In DU145 (prostate cancer) and MIAPaCa-2 (pancreatic cancer) xenograft models, oral administration of 10 mg/kg once a day resulted in TGI of 106 and 87%, respectively. |
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]. Chung S, Suzuki H, Miyamoto T, et al. Development of an orally-administrative MELK-targeting inhibitor that suppresses the growth of various types of human cancer[J]. Oncotarget, 2012, 3(12): 1629. | |
OTSSP167 Dilution Calculator
calculate
OTSSP167 Molarity Calculator
calculate
| Cas No. | 1431697-89-0 | SDF | Download SDF |
| Chemical Name | 4-[7-acetyl-8-[[4-[(dimethylamino)methyl]cyclohexyl]amino]-1H-1,5-naphthyridin-2-ylidene]-2,6-dichlorocyclohexa-2,5-dien-1-one | ||
| Canonical SMILES | CC(=O)C1=CN=C2C=CC(=C3C=C(C(=O)C(=C3)Cl)Cl)NC2=C1NC4CCC(CC4)CN(C)C | ||
| Formula | C25H28Cl2N4O2 | M.Wt | 487.42 |
| Solubility | <0.97mg l="" 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. | ||
OTSSP167 is an inhibitor of maternal embryonic leucine zipper kinase (MELK) with IC50 value of 0.41nM [1].
MELK is a member of the AMPK serine/threonine kinase family and is involved in the mammalian embryonic development. It plays roles in cancer cell growth and formation or maintenance of cancer stem cells. OTSSP167 is a small-molecule inhibitor and can inhibit MELK’s activity effectively and selectively. OTSSP167 inhibits cell proliferation of a variety of cancer cell lines including A549, T47D, DU4475 and 22Rv1. The IC50 values are 6.7nM, 4.3nM, 2.3nM and 6nM, respectively. In mice bearing MDA-MB-231 xenograft, administration of OTSSP167 inhibits 70% tumor growth at dose of 20 mg/kg. Besides that, OTSSP167 is also found to have effects on PSMA1 and DBNL which are the novel substrates of MELK. It inhibits the phosphorylation of PSMA1 and DBNL causes the subsequent suppression of mammosphere formation [1].
References:[1] Chung S, Suzuki H, Miyamoto T, et al. Development of an orally-administrative MELK-targeting inhibitor that suppresses the growth of various types of human cancer. Oncotarget, 2012, 3(12): 1629.
ebiomall.com
>
>
>
>
>
>
>
>
>
>
>
>
