Cytotoxic T Cell-Derived Granzyme B Is Increased in Severe Plasmodium Falciparum Malaria
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Cytotoxic T Cell-Derived Granzyme B Is Increased in Severe Plasmodium Falciparum Malaria. / Kaminski, Lea-Christina; Riehn, Mathias; Abel, Annemieke; Steeg, Christiane; Yar, Denis Dekugmen; Addai-Mensah, Otchere; Aminkiah, Francis; Owusu Dabo, Ellis; Jacobs, Thomas; Mackroth, Maria Sophia.
In: FRONT IMMUNOL, Vol. 10, 2019, p. 2917.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Cytotoxic T Cell-Derived Granzyme B Is Increased in Severe Plasmodium Falciparum Malaria
AU - Kaminski, Lea-Christina
AU - Riehn, Mathias
AU - Abel, Annemieke
AU - Steeg, Christiane
AU - Yar, Denis Dekugmen
AU - Addai-Mensah, Otchere
AU - Aminkiah, Francis
AU - Owusu Dabo, Ellis
AU - Jacobs, Thomas
AU - Mackroth, Maria Sophia
N1 - Copyright © 2019 Kaminski, Riehn, Abel, Steeg, Yar, Addai-Mensah, Aminkiah, Owusu Dabo, Jacobs and Mackroth.
PY - 2019
Y1 - 2019
N2 - In Plasmodium falciparum malaria, CD8+ T cells play a double-edged role. Liver-stage specific CD8+ T cells can confer protection, as has been shown in several vaccine studies. Blood-stage specific CD8+ T cells, on the other hand, contribute to the development of cerebral malaria in murine models of malaria. The role of CD8+ T cells in humans during the blood-stage of P. falciparum remains unclear. As part of a cross-sectional malaria study in Ghana, granzyme B levels and CD8+ T cells phenotypes were compared in the peripheral blood of children with complicated malaria, uncomplicated malaria, afebrile but asymptomatically infected children and non-infected children. Granzyme B levels in the plasma were significantly higher in children with febrile malaria than in afebrile children. CD8+ T cells were the main T cell subset expressing granzyme B. The proportion of granzyme B+ CD8+ T cells was significantly higher in children with complicated malaria than in uncomplicated malaria, whereas the activation marker CD38 on CD8+ T cells showed similar expression levels. This suggests a pathogenic role of cytotoxic CD8+ T cells in the development of malaria complications in humans.
AB - In Plasmodium falciparum malaria, CD8+ T cells play a double-edged role. Liver-stage specific CD8+ T cells can confer protection, as has been shown in several vaccine studies. Blood-stage specific CD8+ T cells, on the other hand, contribute to the development of cerebral malaria in murine models of malaria. The role of CD8+ T cells in humans during the blood-stage of P. falciparum remains unclear. As part of a cross-sectional malaria study in Ghana, granzyme B levels and CD8+ T cells phenotypes were compared in the peripheral blood of children with complicated malaria, uncomplicated malaria, afebrile but asymptomatically infected children and non-infected children. Granzyme B levels in the plasma were significantly higher in children with febrile malaria than in afebrile children. CD8+ T cells were the main T cell subset expressing granzyme B. The proportion of granzyme B+ CD8+ T cells was significantly higher in children with complicated malaria than in uncomplicated malaria, whereas the activation marker CD38 on CD8+ T cells showed similar expression levels. This suggests a pathogenic role of cytotoxic CD8+ T cells in the development of malaria complications in humans.
U2 - 10.3389/fimmu.2019.02917
DO - 10.3389/fimmu.2019.02917
M3 - SCORING: Journal article
C2 - 31921176
VL - 10
SP - 2917
JO - FRONT IMMUNOL
JF - FRONT IMMUNOL
SN - 1664-3224
ER -