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Proteomic and Genomic Analyses of Antimony Resistant Leishmania infantum Mutant

BACKGROUND: Antimonials remain the primary antileishmanial drugs in most developing countries. However, drug resistance to these compounds is increasing and our understanding of resistance mechanisms is partial. METHODS/PRINCIPAL FINDINGS: In the present study, quantitative proteomics using stable i...

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Autores principales: Brotherton, Marie-Christine, Bourassa, Sylvie, Leprohon, Philippe, Légaré, Danielle, Poirier, Guy G., Droit, Arnaud, Ouellette, Marc
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3842243/
https://www.ncbi.nlm.nih.gov/pubmed/24312377
http://dx.doi.org/10.1371/journal.pone.0081899
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author Brotherton, Marie-Christine
Bourassa, Sylvie
Leprohon, Philippe
Légaré, Danielle
Poirier, Guy G.
Droit, Arnaud
Ouellette, Marc
author_facet Brotherton, Marie-Christine
Bourassa, Sylvie
Leprohon, Philippe
Légaré, Danielle
Poirier, Guy G.
Droit, Arnaud
Ouellette, Marc
author_sort Brotherton, Marie-Christine
collection PubMed
description BACKGROUND: Antimonials remain the primary antileishmanial drugs in most developing countries. However, drug resistance to these compounds is increasing and our understanding of resistance mechanisms is partial. METHODS/PRINCIPAL FINDINGS: In the present study, quantitative proteomics using stable isotope labelling of amino acids in cell culture (SILAC) and genome next generation sequencing were used in order to better characterize in vitro generated Leishmania infantum antimony resistant mutant (Sb2000.1). Using the proteomic method, 58 proteins were found to be differentially regulated in Sb2000.1. The ABC transporter MRPA (ABCC3), a known marker of antimony resistance, was observed for the first time in a proteomic screen. Furthermore, transfection of its gene conferred antimony resistance in wild-type cells. Next generation sequencing revealed aneuploidy for 8 chromosomes in Sb2000.1. Moreover, specific amplified regions derived from chromosomes 17 and 23 were observed in Sb2000.1 and a single nucleotide polymorphism (SNP) was detected in a protein kinase (LinJ.33.1810-E629K). CONCLUSION/SIGNIFICANCE: Our results suggest that differentially expressed proteins, chromosome number variations (CNVs), specific gene amplification and SNPs are important features of antimony resistance in Leishmania.
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spelling pubmed-38422432013-12-05 Proteomic and Genomic Analyses of Antimony Resistant Leishmania infantum Mutant Brotherton, Marie-Christine Bourassa, Sylvie Leprohon, Philippe Légaré, Danielle Poirier, Guy G. Droit, Arnaud Ouellette, Marc PLoS One Research Article BACKGROUND: Antimonials remain the primary antileishmanial drugs in most developing countries. However, drug resistance to these compounds is increasing and our understanding of resistance mechanisms is partial. METHODS/PRINCIPAL FINDINGS: In the present study, quantitative proteomics using stable isotope labelling of amino acids in cell culture (SILAC) and genome next generation sequencing were used in order to better characterize in vitro generated Leishmania infantum antimony resistant mutant (Sb2000.1). Using the proteomic method, 58 proteins were found to be differentially regulated in Sb2000.1. The ABC transporter MRPA (ABCC3), a known marker of antimony resistance, was observed for the first time in a proteomic screen. Furthermore, transfection of its gene conferred antimony resistance in wild-type cells. Next generation sequencing revealed aneuploidy for 8 chromosomes in Sb2000.1. Moreover, specific amplified regions derived from chromosomes 17 and 23 were observed in Sb2000.1 and a single nucleotide polymorphism (SNP) was detected in a protein kinase (LinJ.33.1810-E629K). CONCLUSION/SIGNIFICANCE: Our results suggest that differentially expressed proteins, chromosome number variations (CNVs), specific gene amplification and SNPs are important features of antimony resistance in Leishmania. Public Library of Science 2013-11-27 /pmc/articles/PMC3842243/ /pubmed/24312377 http://dx.doi.org/10.1371/journal.pone.0081899 Text en © 2013 Brotherton et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Brotherton, Marie-Christine
Bourassa, Sylvie
Leprohon, Philippe
Légaré, Danielle
Poirier, Guy G.
Droit, Arnaud
Ouellette, Marc
Proteomic and Genomic Analyses of Antimony Resistant Leishmania infantum Mutant
title Proteomic and Genomic Analyses of Antimony Resistant Leishmania infantum Mutant
title_full Proteomic and Genomic Analyses of Antimony Resistant Leishmania infantum Mutant
title_fullStr Proteomic and Genomic Analyses of Antimony Resistant Leishmania infantum Mutant
title_full_unstemmed Proteomic and Genomic Analyses of Antimony Resistant Leishmania infantum Mutant
title_short Proteomic and Genomic Analyses of Antimony Resistant Leishmania infantum Mutant
title_sort proteomic and genomic analyses of antimony resistant leishmania infantum mutant
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3842243/
https://www.ncbi.nlm.nih.gov/pubmed/24312377
http://dx.doi.org/10.1371/journal.pone.0081899
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