Origin and Dissemination of Chloroquine-Resistant Plasmodium falciparum with Mutant pfcrt Alleles in the Philippines

Author:

Chen Nanhua1,Wilson Danny W.2,Pasay Cielo3,Bell David2,Martin Laura B.2,Kyle Dennis14,Cheng Qin1

Affiliation:

1. Department of Drug Resistance and Diagnostics, Australian Army Malaria Institute, Enoggera

2. Malaria and Scabies Group, Infectious Diseases Unit, Queensland Institute of Medical Research, Herston, Queensland, Australia

3. Department of Parasitology, The Research Institute for Tropical Medicine, Manila, Philippines

4. Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland

Abstract

ABSTRACT The pfcrt allelic type and adjacent microsatellite marker type were determined for 82 Plasmodium falciparum isolates from the Philippines. Mutant pfcrt allelic types P1a and P2a/P2b were dominant in different locations. Microsatellite analysis revealed that P2a/P2b evolved independently in the Philippines, while P1a shared common ancestry with Papua New Guinea chloroquine-resistant parasites.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Pharmacology (medical),Pharmacology

Reference15 articles.

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3. pfcrt Allelic Types with Two Novel Amino Acid Mutations in Chloroquine-Resistant Plasmodium falciparum Isolates from the Philippines

4. Chen, N., B. Russell, J. Staley, B. Kotecka, P. Nasveld, and Q. Cheng. 2001. Sequence polymorphisms in pfcrt are strongly associated with chloroquine resistance in Plasmodium falciparum. J. Infect. Dis.183:1543-1545.

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