RT Journal Article T1 A broad analysis of resistance development in the malaria parasite A1 Corey, Victoria A1 Lukens, Amanda A1 Istvan, Eva A1 Lee, Marcus A1 Franco, Virginia A1 Magistrado, Pamela A1 Coburn-Flynn, Olivia A1 Sakata-Kato, Tomoyo A1 Fuchs, Olivia A1 Gnädig, Nina A1 Goldgof, Greg A1 Linares Gómez, María A1 Gomez-Lorenzo, Maria A1 Cózar, Cristina De A1 Lafuente-Monasterio, Maria Jose A1 Prats, Sara A1 Meister, Stefan A1 Tanaseichuk, Olga A1 Wree, Melanie A1 Zhou, Yingyao A1 Willis, Paul A1 Gamo, Francisco-Javier A1 Goldberg, Daniel A1 Fidock, David A1 Wirth, Dyann A1 Winzeler, Elizabeth AB Microbial resistance to chemotherapy has caused countless deaths where malaria is endemic. Chemotherapy may fail either due to pre-existing resistance or evolution of drug-resistant parasites. Here we use a diverse set of antimalarial compounds to investigate the acquisition of drug resistance and the degree of cross-resistance against common resistance alleles. We assess cross-resistance using a set of 15 parasite lines carrying resistance-conferring alleles in pfatp4, cytochrome bc1, pfcarl, pfdhod, pfcrt, pfmdr, pfdhfr, cytoplasmic prolyl t-RNA synthetase or hsp90. Subsequently, we assess whether resistant parasites can be obtained after several rounds of drug selection. Twenty-three of the 48 in vitro selections result in resistant parasites, with time to resistance onset ranging from 15 to 300 days. Our data indicate that pre-existing resistance may not be a major hurdle for novel-target antimalarial candidates, and focusing our attention on fast-killing compounds may result in a slower onset of clinical resistance. PB Nature Research SN 2041-1723 YR 2016 FD 2016 LK https://hdl.handle.net/20.500.14352/93533 UL https://hdl.handle.net/20.500.14352/93533 LA eng NO Corey VC, Lukens AK, Istvan ES, Lee MCS, Franco V, Magistrado P, et al. A broad analysis of resistance development in the malaria parasite. Nat Commun 2016;7:11901. https://doi.org/10.1038/ncomms11901. NO Bill and Melinda Gates Foundation NO National Institute of Allergy and Infectious Diseases NO University of California NO National Institute of General Medical Sciences DS Docta Complutense RD 6 abr 2025