Subcellular fractionation of isolated rat hepatocytes. A comparison with liver homogenate.
Krack, G.;Gravier, O;Roberfroid, Marcel;Mercier, Michel
(1980) Biochimica et Biophysica Acta : international journal of biochemistry and biophysics — Vol. 632, n° 4, p. 619-629 (1980)
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Authors
Krack, G.
Author
Gravier, O
Author
Roberfroid, MarcelUCLouvain
Author
Mercier, MichelUCLouvain
Author
Abstract
An improved method for the homogenization and the subsequent subcellular fractionation of hepatocytes isolated from adult rat liver is described. The homogenization procedure developed in the present study allows the preservation of the integrity of subcellular structures, as demonstrated by measurement of the activities of representative enzymes as well as by determination of their latency. The activities of representative marker enzymes, as calculated on subcellular fractions obtained by differential centrifugation of the homogenate, are identical whether the homogenate arises from isolated hepatocytes or from the whole liver. Moreover, there is a close similitude between the kinetic parameters (Km and V) of two microsomal cytochrome P450-dependent mixed-function oxidases, namely aniline hydroxylase and aminopyrine demethylase determined on microsomal preparations obtained either from isolated cells or from the whole liver.
Krack, G., Gravier, O., Roberfroid, M., & Mercier, M. (1980). Subcellular fractionation of isolated rat hepatocytes. A comparison with liver homogenate. Biochimica et Biophysica Acta : international journal of biochemistry and biophysics, 632(4), 619-629. https://hdl.handle.net/2078.5/71245 (Original work published 1980)