Histone H3 lysine 4 demethylation is a target of nonselective antidepressive medications.

Published

Journal Article

Demethylation of histone H3 lysine 4 is carried out by BHC110/LSD1, an enzyme with close homology to monoamine oxidases (MAO). Monoamine oxidase A or B are frequent targets of selective and nonselective small molecular inhibitors used for treatment of depression. Here we show that in contrast to selective monoamine oxidase inhibitors such as pargyline, nonselective monoamine oxidase inhibitors potently inhibit nucleosomal demethylation of histone H3 lysine 4. Tranylcypromine (brand name Parnate) displayed the best inhibitory activity with an IC50 of less than 2 microM. Treatment of P19 embryonal carcinoma cells with tranylcypromine resulted in global increase in H3K4 methylation as well as transcriptional derepression of two BHC110 target genes, Egr1 and the pluripotent stem cell marker Oct4. These results attest to the effectiveness of tranylcypromine as a small molecular inhibitor of histone demethylation.

Full Text

Duke Authors

Cited Authors

  • Lee, MG; Wynder, C; Schmidt, DM; McCafferty, DG; Shiekhattar, R

Published Date

  • June 2006

Published In

Volume / Issue

  • 13 / 6

Start / End Page

  • 563 - 567

PubMed ID

  • 16793513

Pubmed Central ID

  • 16793513

Electronic International Standard Serial Number (EISSN)

  • 1879-1301

International Standard Serial Number (ISSN)

  • 1074-5521

Digital Object Identifier (DOI)

  • 10.1016/j.chembiol.2006.05.004

Language

  • eng