2,16α,20,25-Tetrahydroxy-9β-methyl-10α-19-norlanosta-1,5,23(E)-trien-3,11,22-trion

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Achtung

• Gefahrenhinweise

  H301：Giftig bei Verschlucken.

CUCURBITACIN I Chemische Eigenschaften,Einsatz,Produktion Methoden

• R-Sätze Betriebsanweisung:

  R25:Giftig beim Verschlucken.
  R28:Sehr giftig beim Verschlucken.

• S-Sätze Betriebsanweisung:

  S1:Unter Verschluss aufbewahren.
  S22:Staub nicht einatmen.
  S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
  S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
  S28:Bei Berührung mit der Haut sofort abwaschen mit viel . . . (vom Hersteller anzugeben).

• Beschreibung

  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].

• Verwenden

  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.

• Biologische Aktivität

  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.

• Lager

  Store at -20°C

• Einzelnachweise

  [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.

2,16α,20,25-Tetrahydroxy-9β-methyl-10α-19-norlanosta-1,5,23(E)-trien-3,11,22-trion Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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