Wiley, FEBS Letters, 1-3(522), p. 3-5, 2002
DOI: 10.1016/s0014-5793(02)02881-8
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To assess whether molecular oxygen and oxidative stress contribute to chloroquine activity, we cultivated strains of Plasmodium falciparum in erythrocytes with carboxyhemoglobin and an atmosphere containing 2% CO, 5% CO(2) and 93% N(2). Results indicate that, contrary to common belief, oxygen is not involved in the activity of chloroquine. Reactive radicals formation is suggested.