Gene Expression Changes in Drug Resistant Leishmania
Author Information
Author(s): Jean-Michel Ubeda, Danielle Légaré, Frédéric Raymond, Amin Ahmed Ouameur, Sébastien Boisvert, Philippe Rigault, Jacques Corbeil, Michel J Tremblay, Martin Olivier, Barbara Papadopoulou, Marc Ouellette
Primary Institution: Université Laval
Hypothesis
How do gene expression and DNA copy number changes contribute to methotrexate resistance in Leishmania?
Conclusion
Aneuploidy and gene amplification are significant mechanisms of drug resistance in Leishmania.
Supporting Evidence
- Gene amplification and deletion were observed in resistant Leishmania mutants.
- Aneuploidy was linked to drug resistance mechanisms.
- Differential gene expression was detected using DNA microarrays.
Takeaway
Leishmania can become resistant to drugs by changing how many copies of certain genes it has, which helps it survive better.
Methodology
Full genome oligonucleotide microarrays were used to analyze gene expression in methotrexate resistant Leishmania mutants.
Limitations
The study primarily focuses on two specific Leishmania species and may not generalize to all strains.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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