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Increased brain synthesis of prostaglandin E-2 and F-2-isoprostane in human and experimental transmissible spongiform encephalopathies

Minghetti, L., Greco, A., Cardone, F., Puopolo, M., Ladogana, A., Almonti, S., Cunningham, C., Perry, V.H., Pocchiari, M. and Levi, G. (2000) Increased brain synthesis of prostaglandin E-2 and F-2-isoprostane in human and experimental transmissible spongiform encephalopathies Journal of Neuropathology and Experimental Neurology, 59, (10), pp. 866-871.

Record type: Article

Abstract

The levels of 2 arachidonic acid metabolites formed either by enzymatic activity of cyclooxygenase, i.e. prostaglandin E2 (PGE2), or by free radical-catalyzed peroxidation, i.e. F2-isoprostane 8-epi-prostaglandin F2[alpha] (8-epi-PGF2[alpha]), were measured in the CSF of subjects with sporadic and familial Creutzfeldt-Jakob disease (CJD) and in brain homogenates of scrapie-infected mice. The CSF levels of both metabolites were increased in sporadic CJD (n = 52) and familial CJD (n = 10) patients when compared with a group of patients with noninflammatory disorders. Similarly, PGE2 and 8-epi-PGF2[alpha] levels were higher in brain homogenates obtained from C57BL/6J mice infected with the ME7 scrapie strain than in brain homogenates from control animals. As PGE2 is 1 of the most abundant prostaglandins released during inflammation and 8-epi-PGF2[alpha] is a quantitative marker of lipid peroxidation, our results provide in vivo biochemical evidence for the occurrence of inflammation and oxidative stress in human and experimental transmissible spongiform encephalopathies (TSEs), a concept so far based mainly on histopathological and in vitro evidence. Interestingly, in sporadic CJD patients, high CSF levels of PGE2, but not 8-epi-PGF2[alpha], correlated with short survival time, suggesting that the inflammatory response correlates with the clinical duration of disease.

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More information

Published date: October 2000
Organisations: Biological Sciences

Identifiers

Local EPrints ID: 56741
URI: http://eprints.soton.ac.uk/id/eprint/56741
ISSN: 0022-3069
PURE UUID: 709ad14b-6b7b-4cc4-8cec-8d0711c842e0

Catalogue record

Date deposited: 22 Aug 2008
Last modified: 17 Jul 2017 14:30

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Contributors

Author: L. Minghetti
Author: A. Greco
Author: F. Cardone
Author: M. Puopolo
Author: A. Ladogana
Author: S. Almonti
Author: C. Cunningham
Author: V.H. Perry
Author: M. Pocchiari
Author: G. Levi

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