Cell lines

HepaRG hepatoma cells and LS180 intestinal cells

Preparation method

The solubility of this compound in DMSO is >10 mM. 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.

Reaction Conditions

10 μM; 24 hrs

Applications

Amprenavir induced PXR target gene expression in both HepaRG hepatoma cells and LS180 intestinal cells.

Animal models

WT and PXR-/- mice

Dosage form

10 mg/kg; p.o.; for 1 week

Applications

In the intestine of WT mice, Amprenavir-mediated PXR activation stimulated the expression of both LipF and LipA.

Other notes

Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal.

Amprenavir (VX-478) is a HIV protease inhibitor(Ki=0.6 nM) used to treat HIV infection.

Amprenavir has an enzyme inhibition constant (Ki = 0.6 nM) that falls within the Ki range of the other protease inhibitors. Amprenavir's in vitro 50% inhibitory concentration (IC50) against wild-type clinical HIV isolates is 14.6 +/- 12.5 ng/mL (mean +/- SD) [1]. Amprenavir had direct inhibitory effects on invasion of Huh-7 hepatocarcinoma cell lines, inhibiting MMP proteolytic activation [2].

Amprenavir was able to promote regression of hepatocarcinoma growth in vivo by anti-angiogenetic and overall anti-tumor activities, independently by PI3K/AKT related pathways that at today is one of the more suggestive hypothesis to explain the anti-tumor effects of the different protease inhibitors [2]. Amprenavir efficiently activated PXR and induced PXR target gene expression in vitro and in vivo. Short-term exposure to amprenavirsignificantly increased plasma total cholesterol and atherogenic low-density lipoprotein cholesterol levels in wild-type mice, but not in PXR-deficient mice [3]. Amprenavir has been approved for adults and children; the recommended capsule doses are 1200 mg twice daily for adults and 20 mg/kg twice daily or 15 mg/kg 3 times daily for children< 13 years of age or adolescents< 50 kg [1].

References:
[1]. Sadler BM, Stein DS. Clinical pharmacology and pharmacokinetics of amprenavir. Ann Pharmacother. 2002 Jan;36(1):102-18.
[2]. Esposito V, Verdina A, Manente L, Amprenavir inhibits the migration in human hepatocarcinoma cell and the growth of xenografts. J Cell Physiol. 2013 Mar;228(3):640-5.
[3]. Helsley RN, Sui Y, Ai N, Pregnane X Receptor Mediates Dyslipidemia Induced by the HIV Protease Inhibitor Amprenavir in Mice. Mol Pharmacol. 2013 Jun;83(6):1190-9.