Endotoxin and cytokines increase hepatic messenger RNA levels and serum concentrations of apolipoprotein J (clusterin) in Syrian hamsters.

I Hardardóttir; S T Kunitake; A H Moser; W T Doerrler; J H Rapp; C Grünfeld; K R Feingold

doi:10.1172/JCI117449

Department of Medicine, University of California San Francisco 94121.

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Department of Medicine, University of California San Francisco 94121.

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Department of Medicine, University of California San Francisco 94121.

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Department of Medicine, University of California San Francisco 94121.

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Department of Medicine, University of California San Francisco 94121.

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Department of Medicine, University of California San Francisco 94121.

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Department of Medicine, University of California San Francisco 94121.

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Published in Volume 94, Issue 3 on September 1, 1994
J Clin Invest. 1994;94(3):1304–1309. https://doi.org/10.1172/JCI117449.
© 1994 The American Society for Clinical Investigation

Published September 1, 1994 - Version history

Infection and inflammation induce alterations in hepatic synthesis and plasma concentrations of the acute phase proteins. Our results show that apolipoprotein (apo) J is a positive acute phase protein. Endotoxin (LPS), tumor necrosis factor (TNF), and interleukin (IL)-1 increased hepatic mRNA and serum protein levels of apo J in Syrian hamsters. Hepatic apo J mRNA levels increased 10- to 15-fold with doses of LPS from 0.1 to 100 micrograms/100 g body weight within 4 h and were elevated for > or = 24 h. Serum apo J concentrations were significantly increased by 16 h and further elevated to 3.3 times that of control, 24 h after LPS administration. Serum apo J was associated with high density lipoprotein and increased fivefold in this fraction, after LPS administration. Hepatic apo J mRNA levels increased 3.5- and 4.6-fold, with TNF and IL-1, respectively, and 8.2-fold with a combination of TNF and IL-1. Serum apo J concentrations were increased 2.3-fold by TNF, 79% by IL-1, and 2.9-fold with a combination of TNF and IL-1. These results demonstrate that apo J is a positive acute phase protein.

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Endotoxin and cytokines increase hepatic messenger RNA levels and serum concentrations of apolipoprotein J (clusterin) in Syrian hamsters.

I Hardardóttir, S T Kunitake, A H Moser, W T Doerrler, J H Rapp, C Grünfeld, and K R Feingold

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Endotoxin and cytokines increase hepatic messenger RNA levels and serum concentrations of apolipoprotein J (clusterin) in Syrian hamsters.

I Hardardóttir, S T Kunitake, A H Moser, W T Doerrler, J H Rapp, C Grünfeld, and K R Feingold

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