- Distribution of Antibodies Specific to the 19-kDa and 33-kDa Fragments of Plasmodium vivax Merozoite Surface Protein 1 in Two Pathogenic Strains Infecting Korean Vivax Malaria Patients
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Sylvatrie-Danne Dinzouna-Boutamba, Sanghyun Lee, Ui-Han Son, Su-Min Song, Hye Soo Yun, So-Young Joo, Dongmi Kwak, Man Hee Rhee, Dong-Il Chung, Yeonchul Hong, Youn-Kyoung Goo
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Osong Public Health Res Perspect. 2016;7(4):213-219. Published online August 31, 2016
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DOI: https://doi.org/10.1016/j.phrp.2016.05.006
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 Abstract
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- Objectives
Plasmodium vivax merozoite surface protein 1 (PvMSP1) is the most intensively studied malaria vaccine candidate. Although high antibody response-inducing two C-terminal fragments of PvMSP1 (PvMSP1-19 and PvMSP1-42) are currently being developed as candidate malaria vaccine antigens, their high genetic diversity in various isolates is a major hurdle. The sequence polymorphism of PvMSP1 has been investigated; however, the humoral immune responses induced by different portions of this protein have not been evaluated in Korea.
Methods
Two fragments of PvMSP1 were selected for this study: (1) PvMSP1-19, which is genetically conserved; and (2) PvMSP1-33, which corresponds to a variable portion. For the latter, two representative strains, Sal 1 and Belem, were included. Thus, three recombinant proteins, PvMSP1-19, PvMSP1-33 Sal 1, and PvMSP1-33 Belem, were produced in Escherichia coli and then tested by enzyme-linked immunosorbent assays using sera from 221 patients with vivax malaria.
Results
Of the 221 samples, 198, 142, and 106 samples were seropositive for PvMSP1-19, PvMSP1-33 Sal 1, and PvMSP1-33 Belem, respectively. Although 100 samples were simultaneously seropositive for antibodies specific to all the recombinant proteins, 39 and six samples were respectively seropositive for antibodies specific to MSP1-33 Sal 1 and MSP1-33 Belem. Antibodies specific to PvMSP1-19 were the most prevalent.
Conclusion
Monitoring seroprevalence is essential for the selection of promising vaccine candidates as most of the antigenic proteins in P. vivax are highly polymorphic.
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Citations
Citations to this article as recorded by  - Spatiotemporal Changes in Plasmodium vivax msp142 Haplotypes in Southern Mexico: From the Control to the Pre-Elimination Phase
Alejandro Flores-Alanis, Lilia González-Cerón, Frida Santillán-Valenzuela, Cecilia Ximenez, Marco A. Sandoval-Bautista, Rene Cerritos
Microorganisms.2022; 10(1): 186. CrossRef - Diversity and natural selection of Merozoite surface Protein-1 in three species of human malaria parasites: Contribution from South-East Asian isolates
Xiang Ting Goh, Yvonne A.L. Lim, Ping Chin Lee, Veeranoot Nissapatorn, Kek Heng Chua
Molecular and Biochemical Parasitology.2021; 244: 111390. CrossRef - Humoral and cellular immune response to Plasmodium vivax VIR recombinant and synthetic antigens in individuals naturally exposed to P. vivax in the Republic of Korea
Sanghyun Lee, Young-Ki Choi, Youn-Kyoung Goo
Malaria Journal.2021;[Epub] CrossRef
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