ArticleWorld journal of gastroenterology2004
Modulation of Kupffer cells on hepatic drug metabolism.
Article in World journal of gastroenterology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 13 citations in OpenAlex.
- Deciphering the cell type-specific and zonal distribution of drug-metabolizing enzymes, transporters, and transcription factors in livers of mice using single-cell transcriptomics.Drug metabolism and disposition: the biological fate of chemicals · 2025Article
- Cocaine-derived hippuric acid activates mtDNA-STING signaling in alcoholic liver disease: Implications for alcohol and cocaine co-abuse.Cell biology and toxicology · 2024Article
- Anti-Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2022Article
- An Expandable Mechanopharmaceutical Device (2): Drug Induced Granulomas Maximize the Cargo Sequestering Capacity of Macrophages in the Liver.Pharmaceutical research · 2018Article
- Gadolinium chloride augments tumor-specific imaging of targeted quantum dots in vivo.ACS nano · 2010Article
- Ultrastructure of Kupffer cells and hepatocytes in the Dubin-Johnson syndrome: a case report.World journal of gastroenterology · 2006Article
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8 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
aimTo observe the effects of Kupffer cells on hepatic drug metabolic enzymes.
methodsKunming mice were i.p. injected with GdCl310, 20, 40 mg/kg to decrease the number and block the function of kupffer cells selectively. The contents of drug metabolic enzymes, cytochrome P450, NADPH-cytochrom C redutase (NADPH-C), aniline hydroxylase (ANH), aminopyrine N-demethylase (AMD), erythromycin N-demethylase (EMD), and glutathione s-transferase (mGST) in hepatic microsome and S9-GSTpi, S9-GST in supernatant of 9 000 g were accessed 1 d after the injection. The time course of alteration of drug metabolic enzymes was observed on d 1, 3, and 6 treated with a single dose GdCl3. Mice were treated with Angelica sinensis polysaccharides (ASP) of 30, 60, 120 mg/kg, i.g., qd x 6 d, respectively and the same assays were performed.
resultsP450 content and NADPH-C, ANH, AMD, and EMD activities were obviously reduced 1 d after Kupffer cell blockade. However, mGST and S9-GST activities were significantly increased. But no relationship was observed between GdCl3 dosage and enzyme activities. With single dose GdCl3 treatment, P450 content, NADPH-C, and ANH activities were further decreased following Kupffer cell blockade lasted for 6 d, by 35.7%, 50.3%, 36.5% after 3 d, and 57.9%, 57.9%, 63.2% after 6 d, respectively. On the contrary, AMD, EMD, mGST, and S9-GST activities were raised by 36.5%, 71.9%, 23.1%, 35.7% after 3 d, and 155%, 182%, 21.5%, 33.7% after 6 d, respectively. Furthermore, the activities of drug metabolic enzymes were markedly increased after 30 mg/kg ASP treatment, and decreased significantly after 120 mg/kg ASP treatment. No change in activity of S9-GSTpi was observed in the present study.
conclusionKupffer cells play an important role in the modulation of drug metabolic enzymes. The changes of drug metabolic enzyme activities depend on the time of kupffer cell blockade and on the degree of Kupffer cells activated. A low concentration of ASP increases the activities of drug metabolic enzymes, but a high concentration of ASP decreases the activities of drug metabolic enzymes.
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