Cell lines

The human hepatoma cell line Huh7 (Huh7.5 cells were electroporated with the J6/JFH1 RNA and were transfected with an NS5A-encoding plasmid.)

Preparation method

The solubility of this compound in DMSO is >13mg/mL. General tips for obtaining a higher concentration: Please warm the tube at 37℃ for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below -20℃ for several months.

Reacting condition

10μM for 4, 24, and 48 h.

Applications

Treatment of cells with golgicide A, a drug that specifically inhibits GBF1, had been shown to decrease HCV (hepatitis C virus) RNA replication. Thus, golgicide A treatments diminished Arf1 (ADP-ribosylation factor 1) and HCV RNA levels in the JFH1-HCVcc cell system. In J6/JFH1 cells, some of the viral NS proteins migrated from speckle-like organelles to the peripheries of LDs in response to Arf1 inhibition by golgicide A treatment. Golgicide A treatments also decreased HCV RNA levels and cause redistribution of NS5A (a nonstructural protein) and accumulation of infectious viral particles.

ADP-ribosylation factor 1 (Arf1), when activated by guanine nucleotide exchange factors (ArfGEFs), plays a key role in regulating secretory traffic and membrane transport within the Golgi of eukaryotic cells. Golgicide A is a reversible inhibitor of the brefeldin A-resistant, cis-Golgi ArfGEF, GBF1 (IC50 = 3.3 μM).1 Inhibition of GBF1 via golgicide A can result in rapid dissociation of COPI vesicle coat protein from Golgi membranes and disassembly of the Golgi and trans-Golgi network.[1] Golgicide A does not affect the association of the adaptor protein, AP-1, or the Arf1-binding protein, GCA3, with the trans-Golgi network nor does it interfere with the activity of the ArfGEFs, BIG1 or 2.[1] Golgicide A can arrest the secretion of soluble and membrane-associated proteins at the ER-Golgi intermediate compartment, as well as prevent endocytic transport of Shiga toxin to the trans-Golgi network.[1]

Reference:
[1]. Saenz, J.B., Sun, W.J., Chang, J.W., et al. Golgicide A reveals essential roles for GBF1 in Golgi assembly and function. Nature Chemical Biology 5(3), 157-165 (2009).