Antibodies to the Plasmodium falciparum Proteins MSPDBL1 and MSPDBL2 Opsonize Merozoites, Inhibit Parasite Growth, and Predict Protection From Clinical Malaria
Chris YH Chiu, Anthony N Hodder, Clara S Lin, Danika L Hill, Connie SN Li Wai Suen, Louis Schofield, Peter M Siba, Ivo Mueller, Alan F Cowman, Diana S Hansen
The Journal of Infectious Diseases | OXFORD UNIV PRESS INC | Published : 2015
Increasing evidence suggests that antibodies against merozoite surface proteins (MSPs) play an important role in clinical immunity to malaria. Two unusual members of the MSP-3 family, merozoite surface protein duffy binding-like (MSPDBL)1 and MSPDBL2, have been shown to be extrinsically associated to MSP-1 on the parasite surface. In addition to a secreted polymorphic antigen associated with merozoite (SPAM) domain characteristic of MSP-3 family members, they also contain Duffy binding-like (DBL) domain and were found to bind to erythrocytes, suggesting that they play a role in parasite invasion. Antibody responses to these proteins were investigated in a treatment-reinfection study conducte..View full abstract
Awarded by National Health and Medical Research Council
The work was supported by the Australian Government National Health and Medical Research Council Independent Research Institute Infrastructure Support Scheme and National Health and Medical Research Council (project grants 1031212 and 1058665). The funders had no role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript.