Myelin Pathology Beyond White Matter in Tuberous Sclerosis Complex (TSC) Cortical Tubers

Mühlebner A, Van Scheppingen J, De Neef A, Bongaarts A, Zimmer TS, Mills JD, Jansen FE, Spliet WG, Krsek P, Zamecnik J, Coras R, Blümcke I, Feucht M, Scholl T, Gruber VE, Hainfellner JA, Söylemezoǧlu F, Kotulska K, Lagae L, Jansen AC, Kwiatkowski DJ, Jozwiak S, Curatolo P, Aronica E (2020)


Publication Type: Journal article

Publication year: 2020

Journal

Book Volume: 79

Pages Range: 1054-1064

Journal Issue: 10

DOI: 10.1093/jnen/nlaa090

Abstract

Tuberous sclerosis complex (TSC) is a monogenetic disease that arises due to mutations in either the TSC1 or TSC2 gene and affects multiple organ systems. One of the hallmark manifestations of TSC are cortical malformations referred to as cortical tubers. These tubers are frequently associated with treatment-resistant epilepsy. Some of these patients are candidates for epilepsy surgery. White matter abnormalities, such as loss of myelin and oligodendroglia, have been described in a small subset of resected tubers but mechanisms underlying this phenomenon are unclear. Herein, we analyzed a variety of neuropathologic and immunohistochemical features in gray and white matter areas of resected cortical tubers from 46 TSC patients using semi-automated quantitative image analysis. We observed divergent amounts of myelin basic protein as well as numbers of oligodendroglia in both gray and white matter when compared with matched controls. Analyses of clinical data indicated that reduced numbers of oligodendroglia were associated with lower numbers on the intelligence quotient scale and that lower amounts of myelin-associated oligodendrocyte basic protein were associated with the presence of autism-spectrum disorder. In conclusion, myelin pathology in cortical tubers extends beyond the white matter and may be linked to cognitive dysfunction in TSC patients.

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APA:

Mühlebner, A., Van Scheppingen, J., De Neef, A., Bongaarts, A., Zimmer, T.S., Mills, J.D.,... Aronica, E. (2020). Myelin Pathology Beyond White Matter in Tuberous Sclerosis Complex (TSC) Cortical Tubers. Journal of Neuropathology and Experimental Neurology, 79(10), 1054-1064. https://doi.org/10.1093/jnen/nlaa090

MLA:

Mühlebner, Angelika, et al. "Myelin Pathology Beyond White Matter in Tuberous Sclerosis Complex (TSC) Cortical Tubers." Journal of Neuropathology and Experimental Neurology 79.10 (2020): 1054-1064.

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