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Host-parasite interactions: an intimate epigenetic relationship.

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Parasites like Theileria and Toxoplasma manipulate host gene expression through epigenetics. This review explores how these intracellular parasites alter host cell signaling and epigenomics, acting as "epigenators".

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Area of Science:

  • Host-pathogen interactions
  • Molecular parasitology
  • Epigenetics

Background:

  • Intracellular parasites have evolved complex mechanisms to manipulate host cells.
  • Epigenetic modifications play a crucial role in regulating gene expression during infection.
  • Understanding these host-parasite interactions is key to developing new therapeutic strategies.

Purpose of the Study:

  • To present an operational framework for investigating host cell signaling pathways induced by intracellular parasites.
  • To examine the epigenomic consequences of parasitic infections in the host nucleus.
  • To highlight the role of parasites, specifically Theileria and Toxoplasma, as 'intracellular epigenators'.

Main Methods:

  • Review of existing literature on host-pathogen epigenetics.
  • Focus on conceptual framework application to intracellular parasites.
  • Case studies using Theileria and Toxoplasma (Apicomplexa phylum).

Main Results:

  • Parasites induce specific host cell signaling pathways.
  • Intracellular parasites cause significant epigenomic alterations in the host nucleus.
  • The parasite proteome can be considered an 'intracellular epigenator'.

Conclusions:

  • Epigenetics offers a novel perspective on host-pathogen co-evolution.
  • The proposed framework aids in dissecting parasite-induced epigenetic reprogramming.
  • Further research into parasite epigenators can reveal new therapeutic targets.