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. 1990 Mar 15;266(3):683–688. doi: 10.1042/bj2660683

Acute-phase-response induction in rat hepatocytes co-cultured with rat liver epithelial cells.

J Conner 1, I Vallet-Collom 1, M Daveau 1, F Delers 1, M Hiron 1, J P Lebreton 1, A Guillouzo 1
PMCID: PMC1131193  PMID: 1691630

Abstract

The response of rat hepatocytes co-cultured with rat liver epithelial cells to conditioned medium (CM) from lipopolysaccharide (LPS)-activated monocytes was investigated by measuring the concentration of alpha 2-macroglobulin (alpha 2M), alpha 1-acid glycoprotein (AGP), albumin and transferrin, as well as the changes in glycosylation of alpha 1-acid glycoprotein. During an initial 8-day treatment with CM, concentrations of alpha 2M and AGP increased markedly over those of control culture, whereas concentrations of albumin and transferrin decreased. The glycosylation pattern of AGP indicated an important relative increase of the concanavalin A-strongly-reactive (SR) variant upon treatment. When CM addition to hepatocyte culture medium was stopped, the concentrations of the four proteins and the glycosylation pattern of AGP reverted to those of control cultures. Further addition (on day 15) to cultures of CM increased the concentration of alpha 2M and decreased albumin and transferrin concentrations. Although AGP concentrations did not increase above those of controls, the appearance of the SR variant was again stimulated by CM. These results show that, in co-culture, rat hepatocytes remain able to respond to repeated inflammatory stimuli.

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Selected References

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