The Duffy binding protein as a key target for a Plasmodium vivax vaccine: lessons from the Brazilian Amazon
نویسندگان
چکیده
Plasmodium vivax infects human erythrocytes through a major pathway that requires interaction between an apical parasite protein, the Duffy binding protein (PvDBP) and its receptor on reticulocytes, the Duffy antigen/receptor for chemokines (DARC). The importance of the interaction between PvDBP (region II, DBPII) and DARC to P. vivax infection has motivated our malaria research group at Oswaldo Cruz Foundation (state of Minas Gerais, Brazil) to conduct a number of immunoepidemiological studies to characterise the naturally acquired immunity to PvDBP in populations living in the Amazon rainforest. In this review, we provide an update on the immunology and molecular epidemiology of PvDBP in the Brazilian Amazon - an area of markedly unstable malaria transmission - and compare it with data from other parts of Latin America, as well as Asia and Oceania.
منابع مشابه
Optimized Method for Purification of Expressed Plasmodium Vivax Duffy Binding Protein-II (PvDBP-II): Implication for Vivax Malaria Vaccine Development
Background: The purity and correct folding of a recombinant protein is critical for any structural, biochemical and vaccine design studies. Plasmodium vivax Duffy binding protein-II is a leading vaccine candidate for vivax malaria. In the present study, the purification process of recombinant DBP-IX (a variant form of PvDBP-II) was optimized to achieve the highest yield and purity. Moreover, ...
متن کاملافزایش میزان بیان پروتئین متصل شونده به دافی در پلاسمودیوم ویواکس به عنوان پروتئین کاندید واکسن مرحله خونی مالاریا
Abstract Background: The cysteine rich region II of Plasmodium vivax Duffy Binding Protein (PvDBP-II) is essential during merozoite invasion into the human erythrocyte and because of this biological importance, PvDBP-II is a vaccine candidate and a target for protective immunity against vivax malaria. In the present study we improved the yield of this protein by using E. coli (M15/BL21) expr...
متن کاملPlasmodium vivax circumsporozoite variants and Duffy blood group genotypes in the Brazilian Amazon region.
The circumsporozoite protein (CSP) of the Plasmodium vivax infective sporozoite is considered to be a major target for the development of recombinant malaria vaccines. The Duffy blood group molecule acts as the red blood cell receptor for P. vivax. We review the frequency of P. vivax CSP variants and report their association with the Duffy blood group genotypes from Brazilian Amazon patients ca...
متن کاملComparison of IgG reactivities to Plasmodium vivax merozoite invasion antigens in a Brazilian Amazon population.
Naturally acquired antibody reactivity to two major Plasmodium vivax vaccine candidates was investigated in 294 donors from three malaria-endemic communities of Rondônia state, Brazil. Antibody recognition of recombinantly expressed antigens covering five different regions of P. vivax reticulocyte binding protein 1 (PvRBP1) and region II of P. vivax Duffy binding protein (PvDBP-RII) were compar...
متن کاملDuffy blood group genotypes among malaria patients in Rondônia, Western Brazilian Amazon.
We have compared Duffy blood group genotype distribution, as determined by polymerase chain reaction with allele-specific primers, in 68 Plasmodium vivax-infected patients and 59 non-vivax malaria controls from Rondônia, Brazil. Homozygosity for the allele Fy, which abolishes Duffy antigen expression on erythrocytes, was observed in 12% non-vivax controls but in no P. vivax patient. However, no...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره 109 شماره
صفحات -
تاریخ انتشار 2014