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Evidence for linkage of pfmdr1, pfcrt, and pfk13 polymorphisms to lumefantrine and mefloquine susceptibilities in a Plasmodium falciparum cross
BACKGROUND: Lumefantrine and mefloquine are used worldwide in artemisinin-based combination therapy (ACT) of malaria. Better understanding of drug susceptibility and resistance is needed and can be obtained from studies of genetic crosses. METHODS: Drug response phenotypes of a cross between Plasmod...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Elsevier
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7677662/ https://www.ncbi.nlm.nih.gov/pubmed/33197753 http://dx.doi.org/10.1016/j.ijpddr.2020.10.009 |
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author | Windle, Sean T. Lane, Kristin D. Gadalla, Nahla B. Liu, Anna Mu, Jianbing Caleon, Ramoncito L. Rahman, Rifat S. Sá, Juliana M. Wellems, Thomas E. |
author_facet | Windle, Sean T. Lane, Kristin D. Gadalla, Nahla B. Liu, Anna Mu, Jianbing Caleon, Ramoncito L. Rahman, Rifat S. Sá, Juliana M. Wellems, Thomas E. |
author_sort | Windle, Sean T. |
collection | PubMed |
description | BACKGROUND: Lumefantrine and mefloquine are used worldwide in artemisinin-based combination therapy (ACT) of malaria. Better understanding of drug susceptibility and resistance is needed and can be obtained from studies of genetic crosses. METHODS: Drug response phenotypes of a cross between Plasmodium falciparum lines 803 (Cambodia) and GB4 (Ghana) were obtained as half-maximal effective concentrations (EC(50)s) and days to recovery (DTR) after 24 h exposure to 500 nM lumefantrine. EC(50)s of mefloquine, halofantrine, chloroquine, and dihydroartemisinin were also determined. Quantitative trait loci (QTL) analysis and statistical tests with candidate genes were used to identify polymorphisms associated with response phenotypes. RESULTS: Lumefantrine EC(50)s averaged 5.8-fold higher for the 803 than GB4 parent, and DTR results were 3–5 and 16–18 days, respectively. In 803 × GB4 progeny, outcomes of these two lumefantrine assays showed strong inverse correlation; these phenotypes also correlated strongly with mefloquine and halofantrine EC(50)s. By QTL analysis, lumefantrine and mefloquine phenotypes mapped to a chromosome 5 region containing codon polymorphisms N86Y and Y184F in the P. falciparum multidrug resistance 1 protein (PfMDR1). Statistical tests of candidate genes identified correlations between inheritance of PfK13 Kelch protein polymorphism C580Y (and possibly K189T) and lumefantrine and mefloquine susceptibilities. Correlations were detected between lumefantrine and chloroquine EC(50)s and polymorphisms N326S and I356T in the CVIET-type P. falciparum chloroquine resistance transporter (PfCRT) common to 803 and GB4. CONCLUSIONS: Correlations in this study suggest common mechanisms of action in lumefantrine, mefloquine, and halofantrine responses. PfK13 as well as PfMDR1 and PfCRT polymorphisms may affect access and/or action of these arylaminoalcohol drugs at locations of hemoglobin digestion and heme metabolism. In endemic regions, pressure from use of lumefantrine or mefloquine in ACTs may drive selection of PfK13 polymorphisms along with versions of PfMDR1 and PfCRT associated with lower susceptibility to these drugs. |
format | Online Article Text |
id | pubmed-7677662 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-76776622020-11-27 Evidence for linkage of pfmdr1, pfcrt, and pfk13 polymorphisms to lumefantrine and mefloquine susceptibilities in a Plasmodium falciparum cross Windle, Sean T. Lane, Kristin D. Gadalla, Nahla B. Liu, Anna Mu, Jianbing Caleon, Ramoncito L. Rahman, Rifat S. Sá, Juliana M. Wellems, Thomas E. Int J Parasitol Drugs Drug Resist Article BACKGROUND: Lumefantrine and mefloquine are used worldwide in artemisinin-based combination therapy (ACT) of malaria. Better understanding of drug susceptibility and resistance is needed and can be obtained from studies of genetic crosses. METHODS: Drug response phenotypes of a cross between Plasmodium falciparum lines 803 (Cambodia) and GB4 (Ghana) were obtained as half-maximal effective concentrations (EC(50)s) and days to recovery (DTR) after 24 h exposure to 500 nM lumefantrine. EC(50)s of mefloquine, halofantrine, chloroquine, and dihydroartemisinin were also determined. Quantitative trait loci (QTL) analysis and statistical tests with candidate genes were used to identify polymorphisms associated with response phenotypes. RESULTS: Lumefantrine EC(50)s averaged 5.8-fold higher for the 803 than GB4 parent, and DTR results were 3–5 and 16–18 days, respectively. In 803 × GB4 progeny, outcomes of these two lumefantrine assays showed strong inverse correlation; these phenotypes also correlated strongly with mefloquine and halofantrine EC(50)s. By QTL analysis, lumefantrine and mefloquine phenotypes mapped to a chromosome 5 region containing codon polymorphisms N86Y and Y184F in the P. falciparum multidrug resistance 1 protein (PfMDR1). Statistical tests of candidate genes identified correlations between inheritance of PfK13 Kelch protein polymorphism C580Y (and possibly K189T) and lumefantrine and mefloquine susceptibilities. Correlations were detected between lumefantrine and chloroquine EC(50)s and polymorphisms N326S and I356T in the CVIET-type P. falciparum chloroquine resistance transporter (PfCRT) common to 803 and GB4. CONCLUSIONS: Correlations in this study suggest common mechanisms of action in lumefantrine, mefloquine, and halofantrine responses. PfK13 as well as PfMDR1 and PfCRT polymorphisms may affect access and/or action of these arylaminoalcohol drugs at locations of hemoglobin digestion and heme metabolism. In endemic regions, pressure from use of lumefantrine or mefloquine in ACTs may drive selection of PfK13 polymorphisms along with versions of PfMDR1 and PfCRT associated with lower susceptibility to these drugs. Elsevier 2020-10-27 /pmc/articles/PMC7677662/ /pubmed/33197753 http://dx.doi.org/10.1016/j.ijpddr.2020.10.009 Text en http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Article Windle, Sean T. Lane, Kristin D. Gadalla, Nahla B. Liu, Anna Mu, Jianbing Caleon, Ramoncito L. Rahman, Rifat S. Sá, Juliana M. Wellems, Thomas E. Evidence for linkage of pfmdr1, pfcrt, and pfk13 polymorphisms to lumefantrine and mefloquine susceptibilities in a Plasmodium falciparum cross |
title | Evidence for linkage of pfmdr1, pfcrt, and pfk13 polymorphisms to lumefantrine and mefloquine susceptibilities in a Plasmodium falciparum cross |
title_full | Evidence for linkage of pfmdr1, pfcrt, and pfk13 polymorphisms to lumefantrine and mefloquine susceptibilities in a Plasmodium falciparum cross |
title_fullStr | Evidence for linkage of pfmdr1, pfcrt, and pfk13 polymorphisms to lumefantrine and mefloquine susceptibilities in a Plasmodium falciparum cross |
title_full_unstemmed | Evidence for linkage of pfmdr1, pfcrt, and pfk13 polymorphisms to lumefantrine and mefloquine susceptibilities in a Plasmodium falciparum cross |
title_short | Evidence for linkage of pfmdr1, pfcrt, and pfk13 polymorphisms to lumefantrine and mefloquine susceptibilities in a Plasmodium falciparum cross |
title_sort | evidence for linkage of pfmdr1, pfcrt, and pfk13 polymorphisms to lumefantrine and mefloquine susceptibilities in a plasmodium falciparum cross |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7677662/ https://www.ncbi.nlm.nih.gov/pubmed/33197753 http://dx.doi.org/10.1016/j.ijpddr.2020.10.009 |
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