Neuroprotective and antiepileptogenic effects of combination of anti-inflammatory drugs in the immature brain.

Young Se Kwon 1, 2 Eduardo Pineda 1 Stéphane Auvin 1, 3 Don Shin 1 Andrey Mazarati 1 Raman Sankar 1, *
* Auteur correspondant
1 Division of Neurology
2 Department of Pediatrics
3 Physiopathologie, conséquences fonctionnelles et neuroprotection des atteintes du cerveau en développement
Abstract : ABSTRACT: BACKGROUND: Inflammatory signaling elicited by prolonged seizures can be contributory to neuronal injury as well as adverse plasticity leading to the development of spontaneous recurrent seizures (epilepsy) and associated co-morbidities. In this study, developing rat pups were subjected to lithium-pilocarpine status epilepticus (SE) at 2 and 3 weeks of age to study the effect of anti-inflammatory drugs (AID) on SE-induced hippocampal injury and the development of spontaneous seizures. FINDINGS: We selected AIDs directed against interleukin-1 receptors (IL-1ra), a cyclooxygenase-2 (COX-2) inhibitor (CAY 10404), and an antagonist of microglia activation of caspase-1 (minocycline). Acute injury after SE was studied in the 2-week-old rats 24 h after SE. Development of recurrent spontaneous seizures was studied in 3-week-old rats subjected to SE 4 months after the initial insult.None of those AIDs were effective in attenuating CA1 injury in the 2-week-old pups or in limiting the development of spontaneous seizures in 3-week-old pups when administered individually. When empiric binary combinations of these drugs were tried, the combined targeting of IL-1r and COX-2 resulted in attenuation of acute CA1 injury, as determined 24 h after SE, in those animals. The same combination administered for 10 days following SE in 3-week-old rats, reduced the development of spontaneous recurrent seizures and limited the extent of mossy fiber sprouting. CONCLUSIONS: Deployment of an empirically designed 'drug cocktail' targeting multiple inflammatory signaling pathways for a limited duration after an initial insult like SE may provide a practical approach to neuroprotection and anti-epileptogenic therapy.
Keywords : Epilepsy Anti-epileptogenesis Hippocampus Status epilepticus Inflammation IL-1β COX-2
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Article dans une revue
Journal of Neuroinflammation, BioMed Central, 2013, 10 (1), pp.30. 〈10.1186/1742-2094-10-30〉
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Young Se Kwon, Eduardo Pineda, Stéphane Auvin, Don Shin, Andrey Mazarati, et al.. Neuroprotective and antiepileptogenic effects of combination of anti-inflammatory drugs in the immature brain.. Journal of Neuroinflammation, BioMed Central, 2013, 10 (1), pp.30. 〈10.1186/1742-2094-10-30〉. 〈inserm-00800959〉

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