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238590

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Cucurbitacin I, Cucumis sativus L.

A cell-permeable and irreversible bitter triterpenoid compound (NCI identifier: NSC 521777) that displays anti-proliferative and antitumor properties both in vitro and in vivo.

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Synonym(s):
Cucurbitacin I, Cucumis sativus L., JSI-124, STAT3 Inhibitor XIV
Empirical Formula (Hill Notation):
C30H42O7
CAS Number:
Molecular Weight:
514.65

Quality Level

assay

≥95% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

white

solubility

ethanol: 10 mg/mL
DMSO: 100 mg/mL

shipped in

ambient

storage temp.

−20°C

InChI

1S/C30H42O7/c1-25(2,36)12-11-21(33)30(8,37)23-19(32)14-27(5)20-10-9-16-17(13-18(31)24(35)26(16,3)4)29(20,7)22(34)15-28(23,27)6/h9,11-13,17,19-20,23,31-32,36-37H,10,14-15H2,1-8H3/b12-11+/t17-,19-,20+,23+,27+,28-,29+,30+/m1/s1

InChI key

NISPVUDLMHQFRQ-MKIKIEMVSA-N

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Cucurbitacin I, Cucumis sativus L.

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Curcumin, Curcuma longa L.

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499610

(5Z)-7-Oxozeaenol, Curvularia sp.

form

solid

form

solid

form

solid

form

solid

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

manufacturer/tradename

Calbiochem®

manufacturer/tradename

Calbiochem®

manufacturer/tradename

Calbiochem®

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze, protect from light

storage condition

OK to freeze, protect from light

storage condition

OK to freeze, protect from light

storage condition

OK to freeze, protect from light

color

white

color

orange-yellow

color

white

color

off-white

General description

A cell-permeable and irreversible bitter triterpenoid compound (NCI identifier: NSC 521777) that displays anti-proliferative and antitumor properties both in vitro and in vivo. Acts as a potent and highly selective inhibitor of Janus kinase/signal transducer and activator of transcription 3 (JAK/STAT3) signaling pathway. It suppresses STAT3 tyrosine phosphorylation in v-Src-transformed NIH 3T3 cells and human lung adenocarcinoma A549 cells (IC50 = 500 nM), resulting in inhibition of STAT3 DNA-binding and STAT3-mediated gene transcription. Shown to inhibit the growth of STAT3-transformed tumors in nude mice. Does not affect oncogenic pathways mediated by Ras, Akt, Erk1/2, or JNK.
A cell-permeable and irreversible bitter triterpenoid compound (NCI identifier: NSC 521777) that exhibits anti-proliferative and anti-tumor properties both in vitro and in vivo. Acts as a potent and highly selective inhibitor of Janus kinase/Signal transducer and activator of transcription 3 (Jak/STAT3) signaling pathway. Reported to suppress STAT3 tyrosine phosphorylation in v-src-transformed NIH 3T3 cells and human lung adenocarcinoma A549 cells (IC50 = 500 nM), resulting in inhibition of STAT3 DNA-binding and STAT3-mediated gene transcription. Also shown to inhibit the growth of STAT3-transformed tumors in nude mice. Does not affect oncogenic pathways mediated by Ras, Akt1, ERK1/2, or JNK.

Biochem/physiol Actions

Cell permeable: yes
Primary Target
JAK/STAT3
Product does not compete with ATP.
Reversible: no
Target IC50: 500 nM suppressing STAT3 tyrosine phosphorylation in v-Src-transformed NIH 3T3 cells and human lung adenocarcinoma A549 cells

Packaging

Packaged under inert gas

Warning

Toxicity: Standard Handling (A)

Other Notes

Blaskovich, M.A., et al. 2003. Cancer Res.63, 1270.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

Skull and crossbones

signalword

Danger

hcodes

Hazard Classifications

Acute Tox. 3 Oral

Storage Class

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Sonia Nasi et al.
Annals of the rheumatic diseases, 75(7), 1372-1379 (2015-08-09)
Basic calcium phosphate (BCP) crystal and interleukin 6 (IL-6) have been implicated in osteoarthritis (OA). We hypothesise that these two factors may be linked in a reciprocal amplification loop which leads to OA. Primary murine chondrocytes and human cartilage explants

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