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Leishmania-Host Interactions-An Epigenetic Paradigm.
Farhat Afrin1, Inbesat Khan2, Hassan A Hemeg1
1Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, Taibah University, Madina, Saudi Arabia.
Frontiers in Immunology
|April 11, 2019
Summary
Epigenetic modifications in Leishmania parasites and host cells are crucial for disease development and immune evasion. Targeting these epigenetic changes offers potential for new anti-leishmanial drugs and vaccine development.
Area of Science:
- Molecular Parasitology
- Immunology
- Epigenetics
Background:
- Leishmaniasis is a neglected tropical disease with no existing vaccines, and chemotherapy is limited by resistance and side effects.
- Leishmania parasites evade host defenses by altering surface proteins and suppressing immune responses.
- Parasite survival involves unique regulation of RNA polymerases and poorly understood post-translational modifications, including epigenetic histone modifications.
Purpose of the Study:
- To review epigenetic alterations in Leishmania parasites and their impact on host cells during infection.
- To explore the role of epigenetic modifications in parasite pathogenesis and immune evasion.
- To discuss the potential of epigenetic targets for anti-leishmanial drug development and vaccine design.
Main Methods:
- Literature review focusing on epigenetic mechanisms in Leishmania infection.
- Analysis of studies on DNA methylation, histone modifications, and non-coding microRNAs in Leishmania pathogenesis.
- Exploration of epigenetic impacts on host immune gene expression and parasite-induced immune suppression.
Main Results:
- Leishmania parasites manipulate host epigenetic machinery, including DNA methylation, to silence immune defense genes.
- Altered epigenetic histone modifications are implicated in parasite chromatin remodeling and gene expression regulation.
- Non-coding microRNAs are identified as regulators of wound healing, immune signaling, and potential biomarkers for treatment outcomes.
Conclusions:
- Unique epigenetic marks in Leishmania parasites and host cells represent promising targets for novel anti-leishmanial therapies.
- Understanding epigenetic perturbations is vital for developing effective leishmaniasis vaccines, serving as biomarkers for safety and immunogenicity.
- Epigenetic strategies may overcome current limitations in leishmaniasis treatment and prevention.
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