Prostaglandin biosynthetic capacity of hepatomas with different growth rates

The International Journal of Biochemistry
J A CyranT W Lysz

Abstract

1. Prostaglandin synthesis from [14C]arachidonate by microsomal fractions was measured with preparations from rat liver and from hepatomas of different growth rates. The highest rates of synthesis were observed with microsomal preparations from the rapidly growing hepatoma HTC. 2. Assay of endogenous levels of prostaglandins E2, F2 alpha and thromboxane B2 also indicated high levels in solid tumors of the HTC line. 3. With HTC cells in culture it was necessary to incubate in the absence of serum in order to detect prostaglandin synthesis. 4. The data indicated that, while prostaglandin synthesis was elevated in HTC cells, the synthesis of prostaglandins by a series of hepatomas was not closely correlated with the growth rates of the tumors.

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Citations

Aug 1, 1995·Prostaglandins, Leukotrienes, and Essential Fatty Acids·F MionD E Johnston
Mar 15, 1997·Journal of Cellular Biochemistry·J XuP E Keeting

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