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CUCURBITACIN I

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CUCURBITACIN I Basic information

Product Name:
CUCURBITACIN I
Synonyms:
  • 1,2-dehydroelatericina
  • 19-nor-9-beta,10-alpha-lanosta-1,5,23-triene-3,11,22-trione,9-methyl-2,16,20,2
  • JSI-124
  • 2,16alpha,20,25-tetrahydroxy-9beta-methyl-10alpha-19-norlanosta-1,5,23(E)-triene-3,11,22-trione
  • 5-tetrahydroxy-
  • cucurbitacine(i)
  • ELATERICIN B
  • ELATERIN B
CAS:
2222-07-3
MF:
C30H42O7
MW:
514.65
EINECS:
218-736-8
Product Categories:
  • Inhibitor
  • Herb extract
  • Tri-Terpenoids
  • API
Mol File:
2222-07-3.mol
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CUCURBITACIN I Chemical Properties

Melting point:
148-150°C
Boiling point:
698.3±55.0 °C(Predicted)
Density 
1.26±0.1 g/cm3(Predicted)
storage temp. 
-20°C
solubility 
≥22.45 mg/mL in DMSO; insoluble in EtOH; ≥51.2 mg/mL in H2O with ultrasonic
form 
solid
pka
8.51±0.70(Predicted)
color 
white to off-white
LogP
2.330 (est)
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Safety Information

Hazard Codes 
Xi,T+
Risk Statements 
25-28
Safety Statements 
1-22-45-36/37-28
RIDADR 
UN 2811 6.1/PG 1
WGK Germany 
3
RTECS 
RC6200000
Toxicity
LD50 oral in mouse: 5mg/kg
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CUCURBITACIN I Usage And Synthesis

Description

Cucurbitacin I is a naturally occurring tetracyclic triterpenoid compound with a variety of physiological effects, including induction of apoptosis and blockade of cell cycle progression in various cancer cells. It has also been shown to have anti-angiogenic activity. Cucurbitacin I inhibits the phosphorylation of vascular endothelial growth factor receptor-2 and fibroblast growth factor receptor-1, which are key regulators of endothelial cell function and angiogenesis. Therefore, Cucurbitacin I is considered a potential angiogenesis inhibitor candidate for cancer therapy[1].

Uses

Cucurbitacin I can be useful in the study of edible vitalmelon fruit extract and adipogenesis.

Definition

ChEBI: Cucurbitacin I is a cucurbitacin that is 9,10,14-trimethyl-4,9-cyclo-9,10-secocholesta-2,5,23-triene substituted by hydroxy groups at positions 2, 16, 20 and 25 and oxo groups at positions 1, 11 and 22. It has a role as a plant metabolite and an antineoplastic agent. It is a cucurbitacin and a tertiary alpha-hydroxy ketone.

Biological Activity

Selective inhibitor of STAT3/JAK2 signaling. Inhibits the activation of STAT3 and JAK2 and displays no activity on Src, Akt, ERK and JNK. Suppresses phosphotyrosine levels of STAT3, inhibits STAT3 DNA binding and STAT3-mediated gene expression. Induces apoptosis in cell lines expressing constitutively active tyrosine-phosphorylated STAT3.

Biochem/physiol Actions

Cucurbitacin I (JSI-124) is a novel selective inhibitor of the janus kinase 2/signal transducer and activator of transcription 3 (JAK2/STAT3) signaling pathway with anti-proliferative and anti-tumor properties.

storage

Store at -20°C

References

[1] HYEON JIN KIM Jin K K. Antiangiogenic effects of cucurbitacin-I[J]. Archives of Pharmacal Research, 2014. DOI:10.1007/s12272-014-0386-5.
blaskovich ma, sun j, cantor a et al.  discovery of jsi-124 (cucurbitacin i), a selective janus kinase/signal transducer and activator of transcription 3 signaling pathway inhibitor with potent antitumor activity against human and murine cancer cells in mice.cancer res. 2003 mar 15;63(6):1270-9.yu h, lee h, herrmann a et al. revisiting stat3 signalling in cancer: new and unexpected biological functions.nat rev cancer. 2014 nov;14(11):736-46. doi: 10.1038/nrc3818.song j, liu h, li z et al.  cucurbitacin i inhibits cell migration and invasion and enhances chemosensitivity in colon cancer. oncol rep. 2015 apr;33(4):1867-71. qi j, xia g, huang cr et al.  jsi-124 (cucurbitacin i) inhibits tumor angiogenesis of human breast cancer through reduction of stat3 phosphorylation. am j chin med. 2015;43(2):337-47.kim hj, kim jk et al. antiangiogenic effects of cucurbitacin-i. arch pharm res. 2015 feb;38(2):290-8. yuan g, yan sf, xue h et al.  cucurbitacin i induces protective autophagy in glioblastoma in vitro and in vivo. j biol chem. 2014 apr 11;289(15):10607-19.

CUCURBITACIN ISupplier

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