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Gammaherpesvirus Co-infection with Malaria Suppresses Anti-parasitic Humoral Immunity
Nearly 1 million deaths occur annually as a result of complications associated with P. falciparum infection, with children younger than 5 being the most susceptible age group. Earlier studies have demonstrated that children co-infected with P. falciparum and Epstein-Barr virus (EBV) have impaired immune responses to control EBV, and this can result in the development of a jaw tumor called endemic Burkitt’s lymphoma (eBL). It is not known if there is any impact of acute EBV infection on the generation of anti-malarial immunity. We have used mouse models of EBV [murine gammaherpesvirus 68 (MHV68)] and malaria (P. yoelii XNL) to demonstrate that acute gammaherpesvirus infection can impair the generation of antibodies that control Plasmodium parasitemia, in turn causing a non-lethal P. yoelii XNL infection to become lethal. We identify a critical role for the MHV68 M2 protein in mediating the suppressive effect of acute MHV68 infection on the generation of humoral immunity to a secondary malaria infection. This work demonstrates that gammaherpesvirus infections can suppress the generation of an effective anti-malaria immune response and suggests that acute EBV infection should be investigated as a risk factor for the development of severe malaria in young children.
Vyšlo v časopise: Gammaherpesvirus Co-infection with Malaria Suppresses Anti-parasitic Humoral Immunity. PLoS Pathog 11(5): e32767. doi:10.1371/journal.ppat.1004858
Kategorie: Research Article
prolekare.web.journal.doi_sk: https://doi.org/10.1371/journal.ppat.1004858Souhrn
Nearly 1 million deaths occur annually as a result of complications associated with P. falciparum infection, with children younger than 5 being the most susceptible age group. Earlier studies have demonstrated that children co-infected with P. falciparum and Epstein-Barr virus (EBV) have impaired immune responses to control EBV, and this can result in the development of a jaw tumor called endemic Burkitt’s lymphoma (eBL). It is not known if there is any impact of acute EBV infection on the generation of anti-malarial immunity. We have used mouse models of EBV [murine gammaherpesvirus 68 (MHV68)] and malaria (P. yoelii XNL) to demonstrate that acute gammaherpesvirus infection can impair the generation of antibodies that control Plasmodium parasitemia, in turn causing a non-lethal P. yoelii XNL infection to become lethal. We identify a critical role for the MHV68 M2 protein in mediating the suppressive effect of acute MHV68 infection on the generation of humoral immunity to a secondary malaria infection. This work demonstrates that gammaherpesvirus infections can suppress the generation of an effective anti-malaria immune response and suggests that acute EBV infection should be investigated as a risk factor for the development of severe malaria in young children.
Zdroje
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Štítky
Hygiena a epidemiológia Infekčné lekárstvo Laboratórium
Článek Neutrophil-Derived MMP-8 Drives AMPK-Dependent Matrix Destruction in Human Pulmonary TuberculosisČlánek Circumventing . Virulence by Early Recruitment of Neutrophils to the Lungs during Pneumonic PlagueČlánek Admixture in Humans of Two Divergent Populations Associated with Different Macaque Host SpeciesČlánek Human and Murine Clonal CD8+ T Cell Expansions Arise during Tuberculosis Because of TCR SelectionČlánek Selective Recruitment of Nuclear Factors to Productively Replicating Herpes Simplex Virus GenomesČlánek Fob1 and Fob2 Proteins Are Virulence Determinants of via Facilitating Iron Uptake from FerrioxamineČlánek Remembering MumpsČlánek Human Cytomegalovirus miR-UL112-3p Targets TLR2 and Modulates the TLR2/IRAK1/NFκB Signaling PathwayČlánek Induces the Premature Death of Human Neutrophils through the Action of Its Lipopolysaccharide
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