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2015 ; 9
(3
): e0003627
Nephropedia Template TP
gab.com Text
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English Wikipedia
Group 2 innate lymphoid cell proportions are diminished in young helminth
infected children and restored by curative anti-helminthic treatment
#MMPMID25799270
Nausch N
; Appleby LJ
; Sparks AM
; Midzi N
; Mduluza T
; Mutapi F
PLoS Negl Trop Dis
2015[Mar]; 9
(3
): e0003627
PMID25799270
show ga
BACKGROUND: Group 2 Innate lymphoid cells (ILC2s) are innate cells that produce
the TH2 cytokines IL-5 and IL-13. The importance of these cells has recently been
demonstrated in experimental models of parasitic diseases but there is a paucity
of data on ILC2s in the context of human parasitic infections and in particular
of the blood dwelling parasite Schistosoma haematobium. METHODOLOGY/PRINCIPAL
FINDINGS: In this case-control study human peripheral blood ILC2s were analysed
in relation to infection with the helminth parasite Schistosoma haematobium.
Peripheral blood mononuclear cells of 36 S. haematobium infected and 36 age and
sex matched uninfected children were analysed for frequencies of ILC2s identified
as Lin-CD45+CD127+CD294+CD161+. ILC2s were significantly lower particularly in
infected children aged 6-9 years compared to healthy participants. Curative
anti-helminthic treatment resulted in an increase in levels of the activating
factor TSLP and restoration of ILC2 levels. CONCLUSION: This study demonstrates
that ILC2s are diminished in young helminth infected children and restored by
removal of the parasites by treatment, indicating a previously undescribed
association between a human parasitic infection and ILC2s and suggesting a role
of ILC2s before the establishment of protective acquired immunity in human
schistosomiasis.