biostudies-literatureXue YNational Key Research and Development Program of China6947https://www.ebi.ac.uk/biostudies/studies/S-EPMC11241798biostudies-literatureUnknown25(13)<i>Toxoplasma gondii</i>, an important opportunistic pathogen, underscores the necessity of developing novel therapeutic drugs and identifying new drug targets. Our findings indicate that the half-maximal inhibitory concentrations (IC₅₀) of KU60019 and CP466722 (abbreviated as KU and CP) against <i>T. gondii</i> are 0.522 μM and 0.702 μM, respectively, with selection indices (SI) of 68 and 10. Treatment with KU and CP affects the in vitro growth of <i>T. gondii</i>, inducing aberrant division in the daughter parasites. Transmission electron microscopy reveals that KU and CP prompt the anomalous division of <i>T. gondii</i>, accompanied by cellular enlargement, nuclear shrinkage, and an increased dense granule density, suggesting potential damage to parasite vesicle transport. SuInternational journal of molecular sciencesThe Effects and Mechanism of ATM Kinase Inhibitors in <i>Toxoplasma gondii</i>.PMC112417982023YFD1802400Liu JYing ZWang FLiu QPei YYin MXue YfalseThe Effects and Mechanism of ATM Kinase Inhibitors in <i>Toxoplasma gondii</i>.<i>Toxoplasma gondii</i>, an important opportunistic pathogen, underscores the necessity of developing novel therapeutic drugs and identifying new drug targets. Our findings indicate that the half-maximal inhibitory concentrations (IC₅₀) of KU60019 and CP466722 (abbreviated as KU and CP) against <i>T. gondii</i> are 0.522 μM and 0.702 μM, respectively, with selection indices (SI) of 68 and 10. Treatment with KU and CP affects the in vitro growth of <i>T. gondii</i>, inducing aberrant division in the daughter parasites. Transmission electron microscopy reveals that KU and CP prompt the anomalous division of <i>T. gondii</i>, accompanied by cellular enlargement, nuclear shrinkage, and an increased dense granule density, suggesting potential damage to parasite vesicle transport. Su2024-01-01T00:00:00Z2024 Jun2026-04-20T03:23:21.58Z2026-04-20T03:14:35.225ZS-EPMC112417983900005710.3390/ijms25136947