AIM To investigate the expression level and effects of leptin in human hepatocellular carcinoma cells in vitro and to explore the correlation between them. METHODS Human hepatocellular carcinoma cell line HepG2 was cultured in vitro, and (the expression level) mRNA of leptin and leptin receptors in HepG2 were assessed using reverse transcription polymerase chain reaction (RT-PCR). Effects of ...

Recent evidence suggests the possibility that macrophages can influence lipoprotein metabolism. Therefore we investigated the ability of cultured macrophages to alter low density lipoprotein (LDL) uptake in a human liver cell line (HepG2). Conditioned media from phlogogenic-induced mouse peritoneal macrophages or from a human macrophage cell line stimulated with endotoxin increased HepG2 LDL up...

Background: We aimed at evaluating the toxicity effects of low (subtoxic) concentrations of silver nanoparticles (AgNP, 5-10 nm) in human hepatoblastoma (HepG2) cell line after and during a period of about one month. Methods: XTT and MTT assays were used to draw a dose-response curve IC50 (half maximal inhibitory concentration) value of the AgNP on HepG2 cells was calculated to be 2.75-3.0 mg/l...

Hepatitis B Virus (HBV) is a causative agent of the most frequent viral infections of man. Since the non-human host range of HBV is restricted to a few animals, such as, chimpanzee, the development of new therapeutics for HBV has been hampered. Several cell lines were developed to identify potential therapeutics against HBV infection. One of these, the HepG2 2.2.15 cell line, was derived throug...

Since CYP3A4 is responsible for the biotransformation of over 50% of all clinically used drugs, induction results in an increased clearance of many concomitantly administered drugs, thereby decreasing treatment efficacy or, in the case of prodrugs, lead to severe intoxications. CYP3A4 induction is regulated by the pregnane X receptor, constitutive androstane receptor, and vitamin D receptor. Si...

Because of expanding resistance to efficient and affordable antimalarial drugs likechloroquine, the search is continuing for more effective drugs against this disease. In-vitroantiplasmodial activity and cytotoxicity of α-(acyloxy)-α-(quinolin-4-yl) acetamides onPlasmodium falciparum and structure-activity relationships of this new class of Passeriniadducts is described. The in-vitro antiplasmo...

Because of expanding resistance to efficient and affordable antimalarial drugs likechloroquine, the search is continuing for more effective drugs against this disease. In-vitroantiplasmodial activity and cytotoxicity of α-(acyloxy)-α-(quinolin-4-yl) acetamides onPlasmodium falciparum and structure-activity relationships of this new class of Passeriniadducts is described. The in-vitro antiplasmo...