The role of extracellular vesicles in malaria biology and pathogenesis

In the past decade, research on the functions of extracellular vesicles in malaria has expanded dramatically. Investigations into the various vesicle types, from both host and parasite origin, has revealed imp...
Source: Malaria Journal - Category: Infectious Diseases Authors: Source Type: research

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The level of human group IIA secreted phospholipase A2 (hGIIA sPLA2) is increased in the plasma of malaria patients, but its role is unknown. In parasite culture with normal plasma, hGIIA is inactive against Plasmodium falciparum, contrasting with hGIIF, hGV, and hGX sPLA2s, which readily hydrolyze plasma lipoproteins, release nonesterified fatty acids (NEFAs), and inhibit parasite growth. Here, we revisited the anti-Plasmodium activity of hGIIA under conditions closer to those of malaria physiopathology where lipoproteins are oxidized. In parasite culture containing oxidized lipoproteins, hGIIA sPLA2 was inhibitory, with ...
Source: Infection and Immunity - Category: Infectious Diseases Authors: Tags: Molecular Pathogenesis Source Type: research
Authors: Szuster-Ciesielska A, Wawiórka L, Krokowski D, Grankowski N, Jarosz Ł, Lisiecka U, Tchórzewski M Abstract Malaria remains one the most infectious and destructive protozoan diseases worldwide. Plasmodium falciparum, a protozoan parasite with a complex life cycle and high genetic variability responsible for the difficulties in vaccine development, is implicated in most malaria-related deaths. In the course of study, we prepared a set of antigens based on P-proteins from P. falciparum and determined their immunogenicity in an in vivo assay on a mouse model. The pentameric complex P0-(P1-P2)2 wa...
Source: Journal of Immunology Research - Category: Allergy & Immunology Tags: J Immunol Res Source Type: research
Malaria elimination requires diagnostic methods able to detect parasite levels well below what is currently possible with microscopy and rapid diagnostic tests. This is particularly true in surveillance of mal...
Source: Malaria Journal - Category: Infectious Diseases Authors: Tags: Research Source Type: research
by Angela Nalwoga, Emily L. Webb, Belinda Chihota, Wendell Miley, Bridgious Walusimbi, Jacent Nassuuna, Richard E. Sanya, Gyaviira Nkurunungi, Nazzarena Labo, Alison M. Elliott, Stephen Cose, Denise Whitby, Robert Newton We investigated the impact of helminths and malaria infection on Kaposi’s sarcoma associated herpesvirus (KSHV) seropositivity, using samples and data collected from a cluster-randomised trial of intensive versus standard anthelminthic treatment. The trial was carried out in 2012 to 2016 among f ishing communities on Lake Victoria islands in Uganda. Plasma samples from 2881 participants from two hou...
Source: PLoS Neglected Tropical Diseases - Category: Tropical Medicine Authors: Source Type: research
A gene enabled the malaria parasite to infect both gorillas and humans for a limited time, explaining how the jump was made at a molecular level, researchers say.
Source: CBC | Health - Category: Consumer Health News Tags: News/Health Source Type: news
Discovery of mutation 50,000 years ago could help in the fight against malaria.
Source: BBC News | Health | UK Edition - Category: Consumer Health News Source Type: news
Scientists who resurrected a 50,000-year-old gene sequence have analyzed it to figure out how the world's deadliest malaria parasite jumped from gorillas to humans - giving insight into the origins of one of human history's biggest killers.
Source: Reuters: Health - Category: Consumer Health News Tags: healthNews Source Type: news
Contributors : Wieteke A Hoeijmakers ; Rich árd Bártfai ; Christa G ToenhakeSeries Type : Expression profiling by high throughput sequencingOrganism : Plasmodium falciparumEpigenetic regulatory mechanisms are central to the development and survival of all eukaryotic organisms. These mechanisms critically depend on the marking of chromatin domains with distinctive histone tail modifications (PTMs) and their recognition by effector protein complexes. In this project, histone peptide pull-downs and protein-protein interaction quantitative proteomics were used to unveil interactions between PTMs and associated re...
Source: GEO: Gene Expression Omnibus - Category: Genetics & Stem Cells Tags: Expression profiling by high throughput sequencing Plasmodium falciparum Source Type: research
Date: Wednesday, 11 13, 2019; Speaker: Laura Amo, Ph.D. , Postdoctoral Fellow, Laboratory of Immunogenetics, National Institute of Allergy and Infectious Diseases; Building: Building 45 (Natcher Building); Ruth Kirschstein Auditorium
Source: NIH Calendar of Events - Category: American Health Source Type: events
This study was designed to determine the prevalence of malaria parasite recurrence and hematological alterat...
Source: BMC Public Health - Category: Consumer Health News Authors: Tags: Research article Source Type: research
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