نتایج جستجو برای: merozoite surface protein 1
تعداد نتایج: 4060363 فیلتر نتایج به سال:
The intracellular development of the erythrocytic stage of the malarial parasite (merozoite) is initiated by the attachment of the parasite to the erythrocyte surface. This paper describes an assay system to investigate Plasmodium falciparum merozoite entry into the host cell and reports on three observations regarding this interaction. (a) Merozoites do not invade human erythrocytes treated wi...
OBJECTIVE Our aim was to evaluate the safety, reactogenicity, and immunogenicity of an investigational malaria vaccine. DESIGN This was an age-stratified phase Ib, double-blind, randomized, controlled, dose-escalation trial. Children were recruited into one of three cohorts (dosage groups) and randomized in 2:1 fashion to receive either the test product or a comparator. SETTING The study wa...
BACKGROUND AND PURPOSE Malarial merozoite surface protein 1 (MSP-1) may have value as a protective immunogen in novel vaccines against malaria. This study was performed to find potential T-cell epitopes for MSP-1 of Plasmodium vivax. METHODS Computation analysis of available MSP-1 of the P. vivax malaria sequence was performed to find potential T-cell epitopes using MHCPred version 2.0. Allel...
Viral vectored vaccines have been shown to induce both T cell and antibody responses in animals and humans. However, the induction of even higher level T cell responses may be crucial in achieving vaccine efficacy against difficult disease targets, especially in humans. Here we investigate the oligomerization domain of the α-chain of C4b-binding protein (C4 bp) as a candidate T cell "molecular ...
To date, a high degree of polymorphism has been demonstrated at both the MSP1 and MSP2 loci in parasites from areas of stable malaria transmission. As a consequence, in such areas it is rare to find parasites of the same 2-locus genotype in more than 1 subject. We have studied MSP1 and MSP2 diversity in parasites collected from subjects with both symptomatic (n = 86) and asymptomatic (34) malar...
INTRODUCTION Although there have been several phylogenetic studies on Plasmodium knowlesi (P. knowlesi), only cytochrome c oxidase subunit 1 (COX1) gene analysis has shown some geographical differentiation between the isolates of different countries. METHODS Phylogenetic analysis of locally acquired P. knowlesi infections, based on circumsporozoite, small subunit ribosomal ribonucleic acid (S...
The asexual blood stage “merozoites” of an Indian strain of the tick-borne cattle haemoprotozoa, Theileria annulata, was generated in in vitro culture and the gene encoding the merozoite surface protein (Tams 1) was amplified from cDNA by using primers designed from T. annulata (Ankara strain). The amplified gene was cloned into pPROExHT b plasmid vector and expressed as fusion protein in Esche...
Erythrocyte invasion by the merozoite is an obligatory stage in Plasmodium parasite infection and essential to malaria disease progression. Attempts to study this process have been hindered by the poor invasion synchrony of merozoites from the only in vitro culture-adapted human malaria parasite, Plasmodium falciparum. Using fluorescence, three-dimensional structured illumination, and immunoele...
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