The ¿/d T-cell response to Plasmodium falciparum malaria in a population in which malaria is endemic
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The ¿/d T-cell response to Plasmodium falciparum malaria in a population in which malaria is endemic. / Hviid, L; Kurtzhals, J A; Dodoo, D; Rodrigues, O; Rønn, A; Commey, J O; Nkrumah, F K; Theander, T G.
I: Infection and Immunity, Bind 64, Nr. 10, 1996, s. 4359-62.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - The ¿/d T-cell response to Plasmodium falciparum malaria in a population in which malaria is endemic
AU - Hviid, L
AU - Kurtzhals, J A
AU - Dodoo, D
AU - Rodrigues, O
AU - Rønn, A
AU - Commey, J O
AU - Nkrumah, F K
AU - Theander, T G
N1 - Keywords: Adult; Animals; Child; Child, Preschool; Humans; Lymphocyte Count; Malaria, Falciparum; Plasmodium falciparum; Receptors, Antigen, T-Cell, gamma-delta; T-Lymphocytes
PY - 1996
Y1 - 1996
N2 - Frequencies and absolute numbers of peripheral gamma/delta T cells have been reported to increase after episodes of Plasmodium falciparum malaria in adults with limited or no previous malaria exposure. In contrast, little is known about the gamma/delta T-cell response to malaria in children from areas where malaria is endemic, who bear the burden of malaria-related morbidity and mortality. We investigated the gamma/delta T-cell response in 19 Ghanaian children from an area of hyperendemic, seasonal malaria transmission. The children presented with cerebral malaria (n = 7), severe malarial anemia (n = 5), or uncomplicated malaria (n = 7) and were monitored from admission until 4 weeks later. We found no evidence of increased frequencies of gamma/delta T cells in any of the patient groups, whereas one adult expatriate studied in Ghana and three adults admitted to the hospital in Copenhagen, Denmark, all with uncomplicated, primary P. falciparum malaria, showed increased gamma/delta T-cell frequencies similar to those previously reported. All patients had lowered absolute numbers of peripheral gamma/delta T cells at admission, changing to increased numbers by days 7 to 14 and then returning to normal levels. The study raises questions regarding age and degree of previous exposure as determinants of malaria-induced gamma/delta T-cell responses.
AB - Frequencies and absolute numbers of peripheral gamma/delta T cells have been reported to increase after episodes of Plasmodium falciparum malaria in adults with limited or no previous malaria exposure. In contrast, little is known about the gamma/delta T-cell response to malaria in children from areas where malaria is endemic, who bear the burden of malaria-related morbidity and mortality. We investigated the gamma/delta T-cell response in 19 Ghanaian children from an area of hyperendemic, seasonal malaria transmission. The children presented with cerebral malaria (n = 7), severe malarial anemia (n = 5), or uncomplicated malaria (n = 7) and were monitored from admission until 4 weeks later. We found no evidence of increased frequencies of gamma/delta T cells in any of the patient groups, whereas one adult expatriate studied in Ghana and three adults admitted to the hospital in Copenhagen, Denmark, all with uncomplicated, primary P. falciparum malaria, showed increased gamma/delta T-cell frequencies similar to those previously reported. All patients had lowered absolute numbers of peripheral gamma/delta T cells at admission, changing to increased numbers by days 7 to 14 and then returning to normal levels. The study raises questions regarding age and degree of previous exposure as determinants of malaria-induced gamma/delta T-cell responses.
M3 - Journal article
C2 - 8926112
VL - 64
SP - 4359
EP - 4362
JO - Infection and Immunity
JF - Infection and Immunity
SN - 0019-9567
IS - 10
ER -
ID: 6748241