Brain expression of inflammatory mediators in Mesial Temporal Lobe Epilepsy patients.

J Neuroimmunol

UMIB - Instituto de Ciências Biomédicas Abel Salazar [ICBAS], Universidade do Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; Departamento de Genética, Instituto Nacional de Saúde Dr. Ricardo Jorge, Porto Rua Pedro Nunes, n.° 88; 4099-032 Porto, Portugal.

Published: December 2017


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Article Abstract

Neuroinflammation may be central in epileptogenesis. In this study we analysed inflammatory reaction markers in brain tissue of Mesial Temporal Lobe Epilepsy with Hippocampal Sclerosis (MTLE-HS) patients. TLR4, IL-1β and IL-10 gene expression as well as the presence of activated HLA-DR+ microglia was evaluated in 23 patients and 10 cadaveric controls. Inflammation characterized by the presence of HLA-DR microglia and TLR4, IL-1β overexpression was evident in hippocampus and anterior temporal cortex of MTLE-HS patients. Anti-inflammatory IL-10 was also overexpressed in MTLE-HS patients. Our results show that hippocampal neuroinflammation extends beyond lesional limits, as far as the anterior temporal cortex.

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http://dx.doi.org/10.1016/j.jneuroim.2017.10.014DOI Listing

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