polyglutamine

Publication Title: 
Proceedings of the National Academy of Sciences of the United States of America

Transcriptional dysregulation is an early feature of Huntington disease (HD). We observed gene-specific changes in histone H3 lysine 4 trimethylation (H3K4me3) at transcriptionally repressed promoters in R6/2 mouse and human HD brain. Genome-wide analysis showed a chromatin signature for this mark. Reducing the levels of the H3K4 demethylase SMCX/Jarid1c in primary neurons reversed down-regulation of key neuronal genes caused by mutant Huntingtin expression. Finally, reduction of SMCX/Jarid1c in primary neurons from BACHD mice or the single Jarid1 in a Drosophila HD model was protective.

Author(s): 
Vashishtha, Malini
Ng, Christopher W.
Yildirim, Ferah
Gipson, Theresa A.
Kratter, Ian H.
Bodai, Laszlo
Song, Wan
Lau, Alice
Labadorf, Adam
Vogel-Ciernia, Annie
Troncosco, Juan
Ross, Christopher A.
Bates, Gillian P.
Krainc, Dimitri
Sadri-Vakili, Ghazaleh
Finkbeiner, Steven
Marsh, J. Lawrence
Housman, David E.
Fraenkel, Ernest
Thompson, Leslie M.
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