Epigenetics in the early divergent eukaryotic Giardia duodenalis : An update

• Giardia duodenalis is a flagellated unicellular eukaryotic microorganism that usually parasitizes the small intestine of humans and many other vertebrates causing diarrheal disease throughout the world. Notably, Giardia despite minimization of most cellular systems shows different strategies to adapt to environmental conditions, evade the immune system and resist exposure to antimicrobial agents. Over the past years, epigenetic regulation of gene expression has been shown to have a relevant role in the parasite's biology. Interestingly, analysis of the Giardia genome revealed the presence of enzymes responsible for post-translational modification in histones, therefore suggesting that epigenetic mechanisms may regulate gene expression in this parasite. Thus, the purpose of this review is to summarize how epigenetic mechanisms play relevant roles in the pathogenicity of Giardia, with a particular emphasis on the molecular mechanisms associated with parasite differentiation, antigenic variation and antimicrobial resistance.

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MEDICIN OCH HÄLSOVETENSKAP  -- Medicinska och farmaceutiska grundvetenskaper -- Cell- och molekylärbiologi (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Basic Medicine -- Cell and Molecular Biology (hsv//eng)

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