The Journal of Experimental Medicine
Avanti Polar Lipids
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The Journal of Experimental Medicine, Vol 123, 365-378, Copyright © 1966 by The Rockefeller University Press


ARTICLE

THE LIVER AS THE SITE OF C-REACTIVE PROTEIN FORMATION

J. Hurlimann M.D.1, G. J. Thorbecke M.D.1, and G. M. Hochwald M.D.1

1 From the Departments of Pathology and Psychiatry and Neurology, New York University School of Medicine, New York

The site of formation of C-reactive protein (CxRP, CRP) has been studied with tissues from rabbits, monkeys, and human beings. Rabbits and monkeys were stimulated to produce the acute phase protein by injection of turpentine, croton oil, endotoxin, paratyphoid-typhoid vaccine, or pneumococci. C14-amino acid incorporation in vitro was demonstrated by means of autoradiography of immunoelectrophoretic patterns made with culture fluids.

It was found that among many different tissues tested liver was the only tissue which incorporated C14-lysine and isoleucine into CxRP or CRP. Only livers taken 16 to 24 hr after various stimuli were active; livers from normal animals or from animals killed 3 to 9 hr after stimulation did not produce detectable amounts of CxRP. Inflamed muscle from the injection site did not show C14-amino acid incorporation into CxRP. Several human tissues were also cultured, and a few liver cultures found to contain labeled CRP.

The formation of CxRP or CRP by the liver was always accompanied by enhanced C14-amino acid incorporation into other serum proteins, but the reverse was not always found.

Submitted on September 28, 1965


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