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Epigenome mapping highlights chromatin-mediated gene regulation in the protozoan parasite Trichomonas vaginalis

 Min-Ji Song  ;  Mikyoung Kim  ;  Yeeun Choi  ;  Myung-hee Yi  ;  Juri Kim  ;  Soon-Jung Park  ;  Tai-Soon Yong  ;  Hyoung-Pyo Kim 
 SCIENTIFIC REPORTS, Vol.7 : 45365, 2017 
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Trichomonas vaginalis is an extracellular flagellated protozoan parasite that causes trichomoniasis, one of the most common non-viral sexually transmitted diseases. To survive and to maintain infection, T. vaginalis adapts to a hostile host environment by regulating gene expression. However, the mechanisms of transcriptional regulation are poorly understood for this parasite. Histone modification has a marked effect on chromatin structure and directs the recruitment of transcriptional machinery, thereby regulating essential cellular processes. In this study, we aimed to outline modes of chromatin-mediated gene regulation in T. vaginalis. Inhibition of histone deacetylase (HDAC) alters global transcriptional responses and induces hyperacetylation of histones and hypermethylation of H3K4. Analysis of the genome of T. vaginalis revealed that a number of enzymes regulate histone modification, suggesting that epigenetic mechanisms are important to controlling gene expression in this organism. Additionally, we describe the genome-wide localization of two histone H3 modifications (H3K4me3 and H3K27Ac), which we found to be positively associated with active gene expression in both steady and dynamic transcriptional states. These results provide the first direct evidence that histone modifications play an essential role in transcriptional regulation of T. vaginalis, and may help guide future epigenetic research into therapeutic intervention strategies against this parasite.
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1. College of Medicine (의과대학) > Dept. of Tropica Medicine (열대의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Ju Ri(김주리) ORCID logo https://orcid.org/0000-0001-8270-7584
Kim, Hyoung Pyo(김형표) ORCID logo https://orcid.org/0000-0003-1441-8822
Park, Soon Jung(박순정) ORCID logo https://orcid.org/0000-0002-0423-1944
Song, Min Ji(송민지)
Yong, Tai Soon(용태순) ORCID logo https://orcid.org/0000-0002-3445-0769
Yi, Myung Hee(이명희) ORCID logo https://orcid.org/0000-0001-9537-5726
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