| Literature DB >> 19883122 |
Mynthia Cabrera1, Michelle F Paguio, Changan Xie, Paul D Roepe.
Abstract
Chloroquine (CQ) accumulation studies in live malaria parasites are typically conducted at low nanomolar CQ concentrations, and definition of CQ resistance (CQR) has been via growth inhibition assays versus low-dose CQ (i.e., via IC(50) ratios). These data have led to the nearly universally accepted idea that reduced parasite CQ accumulation is the underlying basis of CQR. Surprisingly, when quantifying CQR via cytocidal CQ activity and examining CQ accumulation at medically relevant LD(50) doses, we find reduced CQ accumulation is not the underlying cause of CQR.Entities:
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Year: 2009 PMID: 19883122 PMCID: PMC2788207 DOI: 10.1021/bi901765v
Source DB: PubMed Journal: Biochemistry ISSN: 0006-2960 Impact factor: 3.162