Matches in SemOpenAlex for { <https://semopenalex.org/work/W2181611372> ?p ?o ?g. }
- W2181611372 abstract "Apolipoprotein E (apoE) is synthesized by a wide variety of cells including cells of the monocyte-macrophage lineage. In order to assess the quantitative significance of apoE synthesis in a mature tissue macrophage, apoE synthesis was compared in Kupffer cells and hepatocytes isolated from rat liver. Immunoreactive apoE synthesized by both cell types exhibited identical isoform patterns when examined by high-resolution two-dimensional gel analysis. ApoE synthesis was not detected in hepatic endothelial cells. Northern blot analysis using a rat apoE cDNA probe demonstrated a single mRNA species of approximately 1200 nucleotides in freshly isolated hepatocytes and Kupffer cells. The absolute content of apoE mRNA in each cell type was determined with a DNA-excess solution hybridization assay. The apoE mRNA content (pg/microgram RNA) for Kupffer cells and hepatocytes was 35.7 and 98.8, respectively. Accounting for cellular RNA content and the population size of each cell type in the liver, Kupffer cells were calculated to contain about 0.7% of liver apoE mRNA; hepatocytes account almost quantitatively for the remainder. These results suggest that Kupffer cells are not major contributors to the plasma apoE pool. After intravenous injection of bacterial endotoxin, apoE mRNA was decreased in freshly isolated Kupffer cells whereas whole liver showed no change in apoE mRNA. Endotoxin treatment had no effect on the apoE mRNA content in several peripheral tissues. These results indicate that apoE expression in vivo is differentially regulated by endotoxin in Kupffer cells as compared to hepatocytes or apoE-producing cells in peripheral tissues." @default.
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- W2181611372 date "1989-03-01" @default.
- W2181611372 modified "2023-09-27" @default.
- W2181611372 title "Quantification and regulation of apolipoprotein E expression in rat Kupffer cells." @default.
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- W2181611372 doi "https://doi.org/10.1016/s0022-2275(20)38368-1" @default.
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