Publications by authors named "J M Bolscher"

Salmonellosis is a common foodborne disease caused by bacteria. The emergence of multidrug-resistant (MDR) Salmonella serotypes, such as Typhimurium, and Salmonella's ability to form biofilms contribute to their resistance and persistence in host and non-host environments. New strategies are needed to treat or prevent Salmonella infections.

View Article and Find Full Text PDF

Structure-activity relationship studies of 2,8-disubstituted-1,5-naphthyridines, previously reported as potent inhibitors of () phosphatidylinositol-4-kinase β (PI4K), identified 1,5-naphthyridines with basic groups at 8-position, which retained PI4K inhibitory activity but switched primary mode of action to the host hemoglobin degradation pathway through inhibition of hemozoin formation. These compounds showed minimal off-target inhibitory activity against the human phosphoinositide kinases and MINK1 and MAP4K kinases, which were associated with the teratogenicity and testicular toxicity observed in rats for the PI4K inhibitor clinical candidate MMV390048. A representative compound from the series retained activity against field isolates and lab-raised drug-resistant strains of .

View Article and Find Full Text PDF
Article Synopsis
  • IGHV3-33 antibodies are commonly found in the immune response to the Plasmodium falciparum circumsporozoite protein, with cross-reactivity between various motifs correlating to strong parasite inhibition.
  • Identification of specific residues in these antibodies reveals how they bind cross-reactively and leads to the discovery of four different binding configurations, with one linked to high effectiveness against malaria.
  • The research connects the structural aspects of VH3-33 antibodies with their effectiveness, providing insights for creating antibody-based treatments against malaria.
View Article and Find Full Text PDF

Unlabelled: Circulating sexual stages of can be transmitted from humans to mosquitoes, thereby furthering the spread of malaria in the population. It is well established that antibodies (Abs) can efficiently block parasite transmission. In search for naturally acquired Ab targets on sexual stages, we established an efficient method for target-agnostic single B cell activation followed by high-throughput selection of human monoclonal antibodies (mAbs) reactive to sexual stages of in the form of gamete and gametocyte extract.

View Article and Find Full Text PDF