galiellalactone Property

Boiling point:

400.7±38.0 °C(Predicted)

Density 

1.29±0.1 g/cm3(Predicted)

storage temp. 

Store at -20°C

solubility 

DMSO:0.97(Max Conc. mg/mL);4.99(Max Conc. mM)
Ethanol:0.97(Max Conc. mg/mL);4.99(Max Conc. mM)

form 

White to light tan solid.

pka

12.48±0.40(Predicted)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P337+P313IF eye irritation persists: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

galiellalactone Chemical Properties,Usage,Production

Description

Galiellalactone is a fungal metabolite isolated from the ascomycetes G. rufa strain A75-86 and A111-95 that inhibits IL-6-mediated JAK/STAT signal transduction in HepG2 cells with an IC₅₀ value of 0.25-0.5 μM. The selectivity of this compound is achieved by its ability to block the binding of activated STAT3 dimers to their DNA binding sites without affecting phosphorylation of the STAT3 transcription factor. At 10-50 μM, galiellalactone exhibits dose-dependent growth inhibitory effects on prostate cancer stem cell-like cells expressing active STAT3, suggesting it may be a useful therapeutic approach to control JAK/STAT signaling.

Uses

Galiellalactone was originally isolated from Galiella rufa as a plant growth regulator. Recently it was shown to inhibit IL-6 induced SEAP expression with IC50 values of 250-500 nM, blocking the binding of the activated Stat3 dimers to their DNA binding sites without inhibiting the tyrosine and serine phosphorylation of the Stat3 transcription factor.

Uses

Galiellalactone is a STAT3 inhibitor; active in vivo. Galiellalactone is also a promising compound for the development of future prostate cancer drugs.

storage

Store at -20°C