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Isocryptotanshinone

CAS# 22550-15-8

Isocryptotanshinone

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Quality Control of Isocryptotanshinone

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Chemical structure

Isocryptotanshinone

3D structure

Chemical Properties of Isocryptotanshinone

Cas No. 22550-15-8 SDF Download SDF
PubChem ID 626608 Appearance Powder
Formula C19H20O3 M.Wt 296.36
Type of Compound Diterpenoids Storage Desiccate at -20°C
Solubility Soluble in Chloroform,Dichloromethane,Ethyl Acetate,DMSO,Acetone,etc.
Chemical Name 4,4,8-trimethyl-2,3,8,9-tetrahydro-1H-naphtho[2,1-f][1]benzofuran-7,11-dione
SMILES CC1COC2=C1C(=O)C3=C(C2=O)C4=C(C=C3)C(CCC4)(C)C
Standard InChIKey VUIHARLRBGHPEA-UHFFFAOYSA-N
Standard InChI InChI=1S/C19H20O3/c1-10-9-22-18-14(10)16(20)12-6-7-13-11(15(12)17(18)21)5-4-8-19(13,2)3/h6-7,10H,4-5,8-9H2,1-3H3
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.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Source of Isocryptotanshinone

The roots of Salvia miltiorrhiza

Biological Activity of Isocryptotanshinone

Description1. Isocryptotanshinone inhibits MCF-7 cell proliferation by inducing apoptosis and activating MAPK signaling pathways. 2. Isocryptotanshinone is a STAT3 inhibitor, induces apoptosis and pro-death autophagy in A549 lung cancer cells. 3. Isocryptotanshinone inhibits protein tyrosine phosphatase 1B (PTP1B) activity with 50% inhibitory concentration values of 56.1±6.3 μM. (1) PTP1B acts as a negative regulator of insulin signaling, and selective inhibition of PTP1B has served as a potential drug target for the treatment of type 2 diabetes.
TargetsSTAT | JNK | ERK | p38MAPK

Isocryptotanshinone Dilution Calculator

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Isocryptotanshinone Molarity Calculator

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Preparing Stock Solutions of Isocryptotanshinone

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 3.3743 mL 16.8714 mL 33.7427 mL 67.4855 mL 84.3569 mL
5 mM 0.6749 mL 3.3743 mL 6.7485 mL 13.4971 mL 16.8714 mL
10 mM 0.3374 mL 1.6871 mL 3.3743 mL 6.7485 mL 8.4357 mL
50 mM 0.0675 mL 0.3374 mL 0.6749 mL 1.3497 mL 1.6871 mL
100 mM 0.0337 mL 0.1687 mL 0.3374 mL 0.6749 mL 0.8436 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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References on Isocryptotanshinone

PTP1B inhibitory effect of abietane diterpenes isolated from Salvia miltiorrhiza.[Pubmed:16141564]

Biol Pharm Bull. 2005 Sep;28(9):1795-7.

Protein tyrosine phosphatase 1B (PTP1B) acts as a negative regulator of insulin signaling, and selective inhibition of PTP1B has served as a potential drug target for the treatment of type 2 diabetes. In the course of screening for PTP1B inhibitory natural products, the MeOH extract of the dried root of Salvia miltiorrhiza BUNGE (Labiatae) was found to exhibit significant inhibitory effect. Bioassay-guided fractionation and purification afforded three related abietane-type diterpene metabolites 1-3. Compounds 1-3 were identified as isotanshinone IIA (1), dihydroisotanshinone I (2), and Isocryptotanshinone (3) mainly by analysis of NMR and MS data. Compounds 1-3 non-competitively inhibited PTP1B activity with 50% inhibitory concentration values of 11.4+/-0.6 microM, 22.4+/-0.6 microM and 56.1+/-6.3 microM, respectively.

Isocryptotanshinone Induced Apoptosis and Activated MAPK Signaling in Human Breast Cancer MCF-7 Cells.[Pubmed:26155286]

J Breast Cancer. 2015 Jun;18(2):112-8.

PURPOSE: Isocryptotanshinone (ICTS) is a natural bioactive product that is isolated from the roots of the widely used medical herb Salvia miltiorrhiza. However, few reports exist on the mechanisms underlying the therapeutic effects of ICTS. Here, we report that ICTS has anticancer activity and describe the mechanism underlying this effect. METHODS: The antiproliferative effect of ICTS was determined using 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) and clonogenic assays. The effect of ICTS on the cell cycle was measured using flow cytometry. Apoptosis was determined by Hoechst 33342 staining, DNA fragmentation assays, and Western blotting for apoptotic proteins. Finally, the effect of ICTS on mitogen-activated protein kinases (MAPKs) was determined by Western blotting. RESULTS: ICTS significantly inhibited proliferation of MCF-7 and MDA-MB-231 human breast cancer cells, HepG2 human liver cancer cells, and A549 human lung cancer cells in vitro. Among the tested cell lines, MCF-7 cells showed the highest sensitivity to ICTS. ICTS significantly inhibited colony formation by MCF-7 cells. Furthermore, exposure of MCF-7 cells to ICTS induced cell cycle arrest at the G1 phase and decreased mitochondrial membrane potential. Hoechst 33342 staining and Western blot analysis for apoptotic proteins suggested that ICTS induced apoptosis in MCF-7 cells. In addition, ICTS activated MAPK signaling in MCF-7 cells by inducing time- and concentration-dependent phosphorylation of JNK, ERK, and p38 MAPK. CONCLUSION: Our results suggest that ICTS inhibited MCF-7 cell proliferation by inducing apoptosis and activating MAPK signaling pathways.

Isocryptotanshinone, a STAT3 inhibitor, induces apoptosis and pro-death autophagy in A549 lung cancer cells.[Pubmed:26904961]

J Drug Target. 2016 Dec;24(10):934-942.

Signal transducer and activator of transcription 3 (STAT3) is a potential drug target for chemotherapy. Cryptotanshinone (CTS) was identified as a potent STAT3 inhibitor, while the effect of other tanshinones remains unknown. In this study, the influence of eight tanshinones on STAT3 activity was initially screened and Isocryptotanshinone (ICTS) significantly inhibited STAT3 activity in a dual luciferase assay. ICTS inhibited the constitutive and inducible phosphorylation of STAT3 at Y705 without affecting the phosphorylation of STAT3 at S727 in A549 lung cancer cells. Furthermore, ICTS inhibited the nuclear translocation of STAT3. Compared with CTS, ICTS exhibited a stronger inhibitory effect on STAT3 phosphorylation and on A549 cytotoxicity. ICTS induced autophagy as evidenced by the accumulation of autophagic vacuoles and the increased expression of LC3 protein and autophagosomes. ICTS-induced cell death was partially reversed by the autophagy inhibitor chloroquine. The docking assay predicted that both ICTS and CTS bind the SH2 domain of STAT3. ICTS formed hydrogen bonds and pi-pi interaction with the nearby amino acid residues of Lys591, Arg609, and Ser636. These findings suggested that ICTS, a natural compound, is a potent STAT3 inhibitor. ICTS induced apoptosis and pro-death autophagy in A549 cells.

Description

Isocryptotanshinone is a potent signal transducer and activator of transcription 3 (STAT3) and protein tyrosine phosphatase 1B PTP1B inhibitor, with an IC50 of 56.1 μM for PTP1B.

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