Abstract
1. The effects of platelet-activating factor (1-O-alkyl-2-acetyl-sn-glyceryl-3-phosphocholine; PAF) on hepatic metabolism in vivo in rats were studied. 2. PAF stimulated synthesis of hepatic lipid (saponified and non-saponified) in a dose-dependent fashion and caused hypertriglyceridaemia. There was no effect of PAF on lipogenesis in isolated hepatocytes. 3. High doses of PAF also decreased hepatic glycogen. 4. All doses of PAF decreased plasma insulin, and this was accompanied by hyperglycaemia, except at the lowest dose. 5. The selective PAF-receptor antagonist L659.989 prevented the stimulation of lipogenesis, but indomethacin did not.
Full text
PDFSelected References
These references are in PubMed. This may not be the complete list of references from this article.
- Albano J. D., Ekins R. P., Maritz G., Turner R. C. A sensitive, precise radioimmunoassay of serum insulin relying on charcoal separation of bound and free hormone moieties. Acta Endocrinol (Copenh) 1972 Jul;70(3):487–509. doi: 10.1530/acta.0.0700487. [DOI] [PubMed] [Google Scholar]
- Altin J. G., Dieter P., Bygrave F. L. Evidence that Ca2+ fluxes and respiratory, glycogenolytic and vasoconstrictive effects induced by the action of platelet-activating factor and L-alpha-lysophosphatidylcholine in the perfused rat liver are mediated by products of the cyclo-oxygenase pathway. Biochem J. 1987 Jul 1;245(1):145–150. doi: 10.1042/bj2450145. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Argilés J. M., Lopez-Soriano F. J., Evans R. D., Williamson D. H. Interleukin-1 and lipid metabolism in the rat. Biochem J. 1989 May 1;259(3):673–678. doi: 10.1042/bj2590673. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Braquet P., Touqui L., Shen T. Y., Vargaftig B. B. Perspectives in platelet-activating factor research. Pharmacol Rev. 1987 Jun;39(2):97–145. [PubMed] [Google Scholar]
- Bussolino F., Camussi G., Baglioni C. Synthesis and release of platelet-activating factor by human vascular endothelial cells treated with tumor necrosis factor or interleukin 1 alpha. J Biol Chem. 1988 Aug 25;263(24):11856–11861. [PubMed] [Google Scholar]
- Buxton D. B., Fisher R. A., Hanahan D. J., Olson M. S. Platelet-activating factor-mediated vasoconstriction and glycogenolysis in the perfused rat liver. J Biol Chem. 1986 Jan 15;261(2):644–649. [PubMed] [Google Scholar]
- Buxton D. B., Shukla S. D., Hanahan D. J., Olson M. S. Stimulation of hepatic glycogenolysis by acetylglyceryl ether phosphorylcholine. J Biol Chem. 1984 Feb 10;259(3):1468–1471. [PubMed] [Google Scholar]
- Camussi G., Bussolino F., Salvidio G., Baglioni C. Tumor necrosis factor/cachectin stimulates peritoneal macrophages, polymorphonuclear neutrophils, and vascular endothelial cells to synthesize and release platelet-activating factor. J Exp Med. 1987 Nov 1;166(5):1390–1404. doi: 10.1084/jem.166.5.1390. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Casteleijn E., Kuiper J., van Rooij H. C., Kamps J. A., Koster J. F., van Berkel T. J. Hormonal control of glycogenolysis in parenchymal liver cells by Kupffer and endothelial liver cells. J Biol Chem. 1988 Feb 25;263(6):2699–2703. [PubMed] [Google Scholar]
- Chao W., Liu H., DeBuysere M., Hanahan D. J., Olson M. S. Identification of receptors for platelet-activating factor in rat Kupffer cells. J Biol Chem. 1989 Aug 15;264(23):13591–13598. [PubMed] [Google Scholar]
- Eggstein M., Kreutz F. H. Eine neue Bestimmung der Neutralfette im Blutserum und Gewebe. I. Prinzip, Durchführung und Besprechung der Methode. Klin Wochenschr. 1966 Mar 1;44(5):262–267. doi: 10.1007/BF01747716. [DOI] [PubMed] [Google Scholar]
- Evans R. D., Argilés J. M., Williamson D. H. Metabolic effects of tumour necrosis factor-alpha (cachectin) and interleukin-1. Clin Sci (Lond) 1989 Oct;77(4):357–364. doi: 10.1042/cs0770357. [DOI] [PubMed] [Google Scholar]
- Feingold K. R., Grunfeld C. Tumor necrosis factor-alpha stimulates hepatic lipogenesis in the rat in vivo. J Clin Invest. 1987 Jul;80(1):184–190. doi: 10.1172/JCI113046. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Fisher R. A., Shukla S. D., Debuysere M. S., Hanahan D. J., Olson M. S. The effect of acetylglyceryl ether phosphorylcholine on glycogenolysis and phosphatidylinositol 4,5-bisphosphate metabolism in rat hepatocytes. J Biol Chem. 1984 Jul 25;259(14):8685–8688. [PubMed] [Google Scholar]
- Gibbons G. F., Pullinger C. R., Munday M. R., Williamson D. H. Regulation of cholesterol synthesis in the liver and mammary gland of the lactating rat. Biochem J. 1983 Jun 15;212(3):843–848. doi: 10.1042/bj2120843. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Gonzalez-Crussi F., Hsueh W. Experimental model of ischemic bowel necrosis. The role of platelet-activating factor and endotoxin. Am J Pathol. 1983 Jul;112(1):127–135. [PMC free article] [PubMed] [Google Scholar]
- Hanahan D. J. Platelet activating factor: a biologically active phosphoglyceride. Annu Rev Biochem. 1986;55:483–509. doi: 10.1146/annurev.bi.55.070186.002411. [DOI] [PubMed] [Google Scholar]
- Hoffman D. R., White R. G., Angle M. J., Maki N., Johnston J. M. Platelet-activating factor induces glycogen degradation in fetal rabbit lung in utero. J Biol Chem. 1988 Jul 5;263(19):9316–9319. [PubMed] [Google Scholar]
- Hwang S. B., Lam M. H., Alberts A. W., Bugianesi R. L., Chabala J. C., Ponpipom M. M. Biochemical and pharmacological characterization of L-659,989: an extremely potent, selective and competitive receptor antagonist of platelet-activating factor. J Pharmacol Exp Ther. 1988 Aug;246(2):534–541. [PubMed] [Google Scholar]
- Kuiper J., Zijlstra F. J., Kamps J. A., Van Berkel T. J. Cellular communication inside the liver. Binding, conversion and metabolic effect of prostaglandin D2 on parenchymal liver cells. Biochem J. 1989 Aug 15;262(1):195–201. doi: 10.1042/bj2620195. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lang C. H., Dobrescu C., Hargrove D. M., Bagby G. J., Spitzer J. J. Platelet-activating factor-induced increases in glucose kinetics. Am J Physiol. 1988 Feb;254(2 Pt 1):E193–E200. doi: 10.1152/ajpendo.1988.254.2.E193. [DOI] [PubMed] [Google Scholar]
- Lapointe D. S., Olson M. S. Platelet-activating factor-stimulated hepatic glycogenolysis is not mediated through cyclooxygenase-derived metabolites of arachidonic acid. J Biol Chem. 1989 Jul 25;264(21):12130–12133. [PubMed] [Google Scholar]
- Lee M. D., Zentella A., Vine W., Pekala P. H., Cerami A. Effect of endotoxin-induced monokines on glucose metabolism in the muscle cell line L6. Proc Natl Acad Sci U S A. 1987 May;84(9):2590–2594. doi: 10.1073/pnas.84.9.2590. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mercer S. W., Williamson D. H. The regulation of lipogenesis in vivo in the lactating mammary gland of the rat during the starved-refed transition. Studies wtih acarbose, a glucosidase inhibitor. Biochem J. 1987 Feb 15;242(1):235–243. doi: 10.1042/bj2420235. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ponpipom M. M., Hwang S. B., Doebber T. W., Acton J. J., Alberts A. W., Biftu T., Brooker D. R., Bugianesi R. L., Chabala J. C., Gamble N. L. (+/-)-trans-2-(3-Methoxy-5-methylsulfonyl-4-propoxyphenyl)-5-(3,4,5- trimethoxyphenyl)tetrahydrofuran (L-659,989), a novel, potent PAF receptor antagonist. Biochem Biophys Res Commun. 1988 Feb 15;150(3):1213–1220. doi: 10.1016/0006-291x(88)90758-9. [DOI] [PubMed] [Google Scholar]
- Roberts A. F., Viña J. R., Munday M. R., Farrell R., Williamson D. H. Effects of inhibition of protein synthesis by cycloheximide on lipogenesis in mammary gland and liver of lactating rats. Biochem J. 1982 May 15;204(2):417–423. doi: 10.1042/bj2040417. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Robinson A. M., Girard J. R., Williamson D. H. Evidence for a role of insulin in the regulation of lipogenesis in lactating rat mammary gland. Measurements of lipogenesis in vivo and plasma hormone concentrations in response to starvation and refeeding. Biochem J. 1978 Oct 15;176(1):343–346. doi: 10.1042/bj1760343. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Shukla S. D., Buxton D. B., Olson M. S., Hanahan D. J. Acetylglyceryl ether phosphorylcholine. A potent activator of hepatic phosphoinositide metabolism and glycogenolysis. J Biol Chem. 1983 Sep 10;258(17):10212–10214. [PubMed] [Google Scholar]
- Snyder F. Biochemistry of platelet-activating factor: a unique class of biologically active phospholipids. Proc Soc Exp Biol Med. 1989 Feb;190(2):125–135. doi: 10.3181/00379727-190-42839. [DOI] [PubMed] [Google Scholar]
- Stansbie D., Brownsey R. W., Crettaz M., Denton R. M. Acute effects in vivo of anti-insulin serum on rates of fatty acid synthesis and activities of acetyl-coenzyme A carboxylase and pyruvate dehydrogenase in liver and epididymal adipose tissue of fed rats. Biochem J. 1976 Nov 15;160(2):413–416. doi: 10.1042/bj1600413. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sun X. M., Hsueh W. Bowel necrosis induced by tumor necrosis factor in rats is mediated by platelet-activating factor. J Clin Invest. 1988 May;81(5):1328–1331. doi: 10.1172/JCI113459. [DOI] [PMC free article] [PubMed] [Google Scholar]
- WOLLENBERGER A., RISTAU O., SCHOFFA G. [A simple technic for extremely rapid freezing of large pieces of tissue]. Pflugers Arch Gesamte Physiol Menschen Tiere. 1960;270:399–412. [PubMed] [Google Scholar]