Cluster of Excellence –
University of Freiburg

Whole transcriptome screening reveals myelination deficits in dysplastic human temporal neocortex

Donkels C, Pfeifer D, Janz P, Huber S, Nakagawa J, Prinz M, Schulze-Bonhage A, Weyerbrock A, Zentner J, Haas CA.

Cereb Cortex. 2017;27(2):1558-1572

20.01.2016

Donkels C, Pfeifer D, Janz P, Huber S, Nakagawa J, Prinz M, Schulze-Bonhage A, Weyerbrock A, Zentner J, Haas CA.

Cereb Cortex. 2016 Jan 20. [Epub ahead of print]

Cereb Cortex           online article

Focal cortical dysplasias (FCDs) are local malformations of the human neocortex with strong epileptogenic potential. To investigate the underlying pathomechanisms, we performed a whole human transcriptome screening to compare the gene expression pattern of dysplastic versus nondysplastic temporal neocortex. Tissue obtained from FCD IIIa cases (mean age 20.5 years) who had undergone surgical treatment, due to intractable epilepsy, was compared with nondysplastic specimens (mean age 19.9 years) by means of Affymetrix arrays covering 28 869 genes. We found 211 differentially expressed genes (DEX) among which mainly genes important for oligodendrocyte differentiation and myelination were downregulated in FCD IIIa.