Abstract
MAMMALIAN L-lactate dehydrogenase (LDH) (EC. 1.1.1.27.) is a tetrameric molecule consisting of two types of subunits (H and M) which by random combination give five possible isozymes (LDH-1 (H4) to LDH-5 (M5))1. In tissues consisting of different cell types such as the liver, a particular isozyme distribution may be an expression of the pattern in all cell types of the organ, or, alternatively, different cell types may have different isozyme patterns. In studying the isozyme distribution as a function of hormone administration2, carcinogenesis3, metabolic changes4 or differentiation5 it is of obvious importance to know the contribution from the different cell types to the total isozyme pattern. The mammalian liver consists primarily of hepatocytes (parenchymal cells) and reticuloendothelial cells (Kupffer cells)6. As much as 35% of the cells are Kupffer cells, representing 5 to 10% of the liver mass6,7. To obtain information about the isozyme distribution in the different liver cells we have tried to separate Kupffer and parenchymal cells after enzymatic dispersion of rat liver.
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BERG, T., BLIX, A. Distribution of Lactate Dehydrogenase Isozymes in Rat Liver Cells. Nature New Biology 245, 239–240 (1973). https://doi.org/10.1038/newbio245239a0
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DOI: https://doi.org/10.1038/newbio245239a0