Oligodendrocytic polyglutamine pathology in dentatorubral-pallidoluysian atrophy.

Yamada, Mitsunori; Sato, Toshiya; Tsuji, Shoji; Takahashi, Hitoshi · Ann Neurol · 2002

basic_science · Level V

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Abstract

White matter degeneration is one of the pathological conditions of dentatorubral-pallidoluysian atrophy. Autopsy brains exhibited a reduced number of glial cells in the lesions and an involvement of oligodendrocytes in nuclear inclusion formation, which previously has been recognized only as a pathological hallmark in neurons. Dentatorubral-pallidoluysian atrophy transgenic mice showed an increased number of affected glias with increasing age and with larger expansions of CAG repeats. These findings suggest that glial cells in dentatorubral-pallidoluysian atrophy also are involved in the polyglutamine pathogenesis.

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