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Full-Text Articles in Medicine and Health Sciences

Preclinical Characterization And Target Validation Of The Antimalarial Pantothenamide Mmv693183., Laura E. De Vries, Patrick A. M. Jansen, Catalina Barcelo, Justin Munro, Julie M. J. Verhoef, Charisse Flerida A. Pasaje, Kelly Rubiano, Josefine Striepen, Nada Abla, Luuk Berning, Judith M. Bolscher, Claudia Demarta-Gatsi, Rob W. M. Henderson, Tonnie Huijs, Karin M J Koolen, Patrick K. Tumwebaze, Tomas Yeo, Anna C. C. Aguiar, Iñigo Angulo-Barturen, Alisje Churchyard, Jake Baum, Benigno Crespo Fernández, Aline Fuchs, Francisco-Javier Gamo, Rafael V. C. Guido, María Belén Jiménez-Diaz, Dhelio B. Pereira, Rosemary Rochford, Camille Roesch, Laura M. Sanz, Graham Trevitt, Benoit Witkowski, Sergio Wittlin, Roland A. Cooper, Philip J. Rosenthal, Robert W. Sauerwein, Joost Schalkwijk, Pedro H. H. Hermkens, Roger V. Bonnert, Brice Campo, David A. Fidock, Manuel Llinás, Jacquin C. Niles, Taco W. A. Kooij, Koen J. Dechering Apr 2022

Preclinical Characterization And Target Validation Of The Antimalarial Pantothenamide Mmv693183., Laura E. De Vries, Patrick A. M. Jansen, Catalina Barcelo, Justin Munro, Julie M. J. Verhoef, Charisse Flerida A. Pasaje, Kelly Rubiano, Josefine Striepen, Nada Abla, Luuk Berning, Judith M. Bolscher, Claudia Demarta-Gatsi, Rob W. M. Henderson, Tonnie Huijs, Karin M J Koolen, Patrick K. Tumwebaze, Tomas Yeo, Anna C. C. Aguiar, Iñigo Angulo-Barturen, Alisje Churchyard, Jake Baum, Benigno Crespo Fernández, Aline Fuchs, Francisco-Javier Gamo, Rafael V. C. Guido, María Belén Jiménez-Diaz, Dhelio B. Pereira, Rosemary Rochford, Camille Roesch, Laura M. Sanz, Graham Trevitt, Benoit Witkowski, Sergio Wittlin, Roland A. Cooper, Philip J. Rosenthal, Robert W. Sauerwein, Joost Schalkwijk, Pedro H. H. Hermkens, Roger V. Bonnert, Brice Campo, David A. Fidock, Manuel Llinás, Jacquin C. Niles, Taco W. A. Kooij, Koen J. Dechering

Natural Sciences and Mathematics | Faculty Scholarship

Drug resistance and a dire lack of transmission-blocking antimalarials hamper malaria elimination. Here, we present the pantothenamide MMV693183 as a first-in-class acetyl-CoA synthetase (AcAS) inhibitor to enter preclinical development. Our studies demonstrate attractive drug-like properties and in vivo efficacy in a humanized mouse model of Plasmodium falciparum infection. The compound shows single digit nanomolar in vitro activity against P. falciparum and P. vivax clinical isolates, and potently blocks P. falciparum transmission to Anopheles mosquitoes. Genetic and biochemical studies identify AcAS as the target of the MMV693183-derived antimetabolite, CoA-MMV693183. Pharmacokinetic-pharmacodynamic modelling predict that a single 30 mg oral dose is sufficient …


Discovery And Preclinical Pharmacology Of Ine963, A Potent And Fast-Acting Blood-Stage Antimalarial With A High Barrier To Resistance And Potential For Single-Dose Cures In Uncomplicated Malaria., Benjamin R. Taft, Fumiaki Yokokawa, Tom Kirrane, Anne-Catherine Mata, Richard Huang, Nicole Blaquiere, Grace Waldron, Bin Zou, Oliver Simon, Subramanyam Vankadara, Wai Ling Chan, Mei Ding, Sandra Sim, Judith Straimer, Armand Guiguemde, Suresh B Lakshminarayana, Jay Prakash Jain, Christopher Bodenreider, Christopher Thompson, Christian Lanshoeft, Wei Shu, Eric Fang, Jafri Qumber, Katherine Chan, Luying Pei, Yen-Liang Chen, Hanna Schulz, Jessie Lim, Siti Nurdiana Abas, Xiaoman Ang, Yugang Liu, Iñigo Angulo-Barturen, María Belén Jiménez-Díaz, Glaxosmithkline Gamo, Benigno Crespo-Fernandez, Philip J. Rosenthal, Roland A. Cooper, Patrick Tumwebaze, Anna Caroline Campos Aguiar, Brice Campo, Simon Campbell, Jürgen Wagner, Thierry T Diagana, Christopher Sarko Mar 2022

Discovery And Preclinical Pharmacology Of Ine963, A Potent And Fast-Acting Blood-Stage Antimalarial With A High Barrier To Resistance And Potential For Single-Dose Cures In Uncomplicated Malaria., Benjamin R. Taft, Fumiaki Yokokawa, Tom Kirrane, Anne-Catherine Mata, Richard Huang, Nicole Blaquiere, Grace Waldron, Bin Zou, Oliver Simon, Subramanyam Vankadara, Wai Ling Chan, Mei Ding, Sandra Sim, Judith Straimer, Armand Guiguemde, Suresh B Lakshminarayana, Jay Prakash Jain, Christopher Bodenreider, Christopher Thompson, Christian Lanshoeft, Wei Shu, Eric Fang, Jafri Qumber, Katherine Chan, Luying Pei, Yen-Liang Chen, Hanna Schulz, Jessie Lim, Siti Nurdiana Abas, Xiaoman Ang, Yugang Liu, Iñigo Angulo-Barturen, María Belén Jiménez-Díaz, Glaxosmithkline Gamo, Benigno Crespo-Fernandez, Philip J. Rosenthal, Roland A. Cooper, Patrick Tumwebaze, Anna Caroline Campos Aguiar, Brice Campo, Simon Campbell, Jürgen Wagner, Thierry T Diagana, Christopher Sarko

Natural Sciences and Mathematics | Faculty Scholarship

A series of 5-aryl-2-amino-imidazothiadiazole (ITD) derivatives were identified by a phenotype-based high-throughput screening using a blood stage Plasmodium falciparum (Pf) growth inhibition assay. A lead optimization program focused on improving antiplasmodium potency, selectivity against human kinases, and absorption, distribution, metabolism, excretion, and toxicity properties and extended pharmacological profiles culminated in the identification of INE963 (1), which demonstrates potent cellular activity against Pf 3D7 (EC50 = 0.006 μM) and achieves "artemisinin-like" kill kinetics in vitro with a parasite clearance time of/kg is fully curative in the Pf-humanized severe combined immunodeficient mouse model. INE963 (1) also exhibits a high barrier to resistance …


Rickettsial Pathogen Perturbs Tick Circadian Gene To Infect The Vertebrate Host, Supreet Khanal, Vikas Taank, John F. Anderson, Hameeda Sultana, Girish Neelakanta Jan 2022

Rickettsial Pathogen Perturbs Tick Circadian Gene To Infect The Vertebrate Host, Supreet Khanal, Vikas Taank, John F. Anderson, Hameeda Sultana, Girish Neelakanta

Biological Sciences Faculty Publications

Ixodes scapularis is a medically important tick that transmits several microbes to humans, including rickettsial pathogen Anaplasma phagocytophilum. In nature, these ticks encounter several abiotic factors including changes in temperature, humidity, and light. Many organisms use endogenously generated circadian pathways to encounter abiotic factors. In this study, we provide evidence for the first time to show that A. phagocytophilum modulates the arthropod circadian gene for its transmission to the vertebrate host. We noted a circadian oscillation in the expression of arthropod clock, bmal1, period and timeless genes when ticks or tick cells were exposed to alternate 12 h …