Justin Doritchamou, Morten A Nielsen, Arnaud Chêne, Nicola K Viebig, Lynn E Lambert, Adam F Sander, Jean-Philippe Semblat, Sophia Hundt, Sachy Orr-Gonzalez, Christoph Mikkel Janitzek, Alicia J Spiegel, Stine B Clemmensen, Marvin L Thomas, Martha C Nason, Maryonne Snow-Smith, Emma K Barnafo, Joseph Shiloach, Beth B Chen, Steven Nadakal, Kendrick Highsmith, Tarik Ouahes, Solomon Conteh, Ankur Sharma, Holly Torano, Brandi Butler, Karine Reiter, Kelly M Rausch, Puthupparampil V Scaria, Charles Anderson, David L Narum, Ali Salanti, Michal Fried, Thor G Theander, Benoit Gamain, Patrick E Duffy
Placental malaria vaccines (PMVs) are being developed to prevent severe sequelae of placental malaria (PM) in pregnant women and their offspring. The leading candidate vaccine antigen VAR2CSA mediates parasite binding to placental receptor chondroitin sulfate A (CSA). Despite promising results in small animal studies, recent human trials of the first two PMV candidates (PAMVAC and PRIMVAC) generated limited cross-reactivity and cross-inhibitory activity to heterologous parasites. Here we immunized Aotus nancymaae monkeys with three PMV candidates (PAMVAC, PRIMVAC and ID1-ID2a_M1010) adjuvanted with Alhydrogel, and exploited the model to investigate boosting of functional vaccine responses during PM episodes as well as with nanoparticle antigens...
November 6, 2023: Lab Animal