Origin and evolution of sulfadoxine resistant Plasmodium falciparum

Sumiti Vinayak, Tauqeer Alam, Tonya Mixson-Hayden, Andrea M. McCollum, Rithy Sem, Naman K. Shah, Pharath Lim, Sinuon Muth, William O. Rogers, Thierry Fandeur, John W. Barnwell, Ananias A. Escalante, Chansuda Wongsrichanalai, Frederick Ariey, Steven R. Meshnick, Venkatachalam Udhayakumar

Research output: Contribution to journalArticle

76 Citations (Scopus)

Abstract

The Thailand-Cambodia border is the epicenter for drug-resistant falciparum malaria. Previous studies have shown that chloroquine (CQ) and pyrimethamine resistance originated in this region and eventually spread to other Asian countries and Africa. However, there is a dearth in understanding the origin and evolution of dhps alleles associated with sulfadoxine resistance. The present study was designed to reveal the origin(s) of sulfadoxine resistance in Cambodia and its evolutionary relationship to African and South American dhps alleles. We sequenced 234 Cambodian Plasmodium falciparum isolates for the dhps codons S436A/F, A437G, K540E, A581G and A613S/T implicated in sulfadoxine resistance. We also genotyped 10 microsatellite loci around dhps to determine the genetic backgrounds of various alleles and compared them with the backgrounds of alleles prevalent in Africa and South America. In addition to previously known highly-resistant triple mutant dhps alleles SGEGA and AGEAA (codons 436, 437, 540, 581, 613 are sequentially indicated), a large proportion of the isolates (19.3%) contained a 540N mutation in association with 437G/581G yielding a previously unreported triple mutant allele, SGNGA. Microsatellite data strongly suggest the strength of selection was greater on triple mutant dhps alleles followed by the double and single mutants. We provide evidence for at least three independent origins for the double mutants, one each for the SGKGA, AGKAA and SGEAA alleles. Our data suggest that the triple mutant allele SGEGA and the novel allele SGNGA have common origin on the SGKGA background, whereas the AGEAA triple mutant was derived from AGKAA on multiple, albeit limited, genetic backgrounds. The SGEAA did not share haplotypes with any of the triple mutants. Comparative analysis of the microsatellite haplotypes flanking dhps alleles from Cambodia, Kenya, Cameroon and Venezuela revealed an independent origin of sulfadoxine resistant alleles in each of these regions.

Original languageEnglish (US)
Article numbere1000830
JournalPLoS Pathogens
Volume6
Issue number3
DOIs
StatePublished - Mar 2010

Fingerprint

Sulfadoxine
Plasmodium falciparum
Alleles
Cambodia
Microsatellite Repeats
Codon
Haplotypes
Pyrimethamine
Cameroon
Venezuela
Falciparum Malaria
South America
Kenya
Chloroquine
Thailand
African Americans

ASJC Scopus subject areas

  • Microbiology
  • Parasitology
  • Virology
  • Immunology
  • Genetics
  • Molecular Biology

Cite this

Vinayak, S., Alam, T., Mixson-Hayden, T., McCollum, A. M., Sem, R., Shah, N. K., ... Udhayakumar, V. (2010). Origin and evolution of sulfadoxine resistant Plasmodium falciparum. PLoS Pathogens, 6(3), [e1000830]. https://doi.org/10.1371/journal.ppat.1000830

Origin and evolution of sulfadoxine resistant Plasmodium falciparum. / Vinayak, Sumiti; Alam, Tauqeer; Mixson-Hayden, Tonya; McCollum, Andrea M.; Sem, Rithy; Shah, Naman K.; Lim, Pharath; Muth, Sinuon; Rogers, William O.; Fandeur, Thierry; Barnwell, John W.; Escalante, Ananias A.; Wongsrichanalai, Chansuda; Ariey, Frederick; Meshnick, Steven R.; Udhayakumar, Venkatachalam.

In: PLoS Pathogens, Vol. 6, No. 3, e1000830, 03.2010.

Research output: Contribution to journalArticle

Vinayak, S, Alam, T, Mixson-Hayden, T, McCollum, AM, Sem, R, Shah, NK, Lim, P, Muth, S, Rogers, WO, Fandeur, T, Barnwell, JW, Escalante, AA, Wongsrichanalai, C, Ariey, F, Meshnick, SR & Udhayakumar, V 2010, 'Origin and evolution of sulfadoxine resistant Plasmodium falciparum', PLoS Pathogens, vol. 6, no. 3, e1000830. https://doi.org/10.1371/journal.ppat.1000830
Vinayak S, Alam T, Mixson-Hayden T, McCollum AM, Sem R, Shah NK et al. Origin and evolution of sulfadoxine resistant Plasmodium falciparum. PLoS Pathogens. 2010 Mar;6(3). e1000830. https://doi.org/10.1371/journal.ppat.1000830
Vinayak, Sumiti ; Alam, Tauqeer ; Mixson-Hayden, Tonya ; McCollum, Andrea M. ; Sem, Rithy ; Shah, Naman K. ; Lim, Pharath ; Muth, Sinuon ; Rogers, William O. ; Fandeur, Thierry ; Barnwell, John W. ; Escalante, Ananias A. ; Wongsrichanalai, Chansuda ; Ariey, Frederick ; Meshnick, Steven R. ; Udhayakumar, Venkatachalam. / Origin and evolution of sulfadoxine resistant Plasmodium falciparum. In: PLoS Pathogens. 2010 ; Vol. 6, No. 3.
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