Serum concentrations of GM-CSF and G-CSF correlate with the Th1/Th2 cytokine response in cystic fibrosis patients with chronic Pseudomonas aeruginosa lung infection.
The inflammation in cystic fibrosis (CF) patients with chronic Pseudomonas aeruginosa lung infection is dominated by polymorphonuclear neutrophils (PMNs). There seems to be a relationship between the PMN-dominated inflammation, pronounced antibody production and a Th2-dominated response. Apart from mobilizing monocytes and PMNs from the bone marrow, GM-CSF, G-CSF and IL-3 select subsets of dendritic cells, which subsequently induce distinct Th responses. Therefore, the present study examines the correlation between the mobilizing cytokines in serum and the Th responses. The IFN-gamma and IL-4 production by peripheral blood mononuclear cells, and the concentrations of GM-CSF and G-CSF in serum as well as lung function, were determined in 37 CF patients with and 6 CF patients without chronic P. aeruginosa lung infection. The GM-CSF/G-CSF ratio correlated both with the IFN-gamma production and good lung function. In addition, an inverse correlation between IL-3 and IFN-gamma was observed. The results indicate involvement of endogenous GM-CSF, G-CSF and IL-3 in the skewed Th response in CF, and change to a Th1-dominated response might be achieved with GM-CSF treatment.
Department of Clinical Microbiology, Rigshospitalet, University Hospital, Copenhagen, Denmark. moser@dadlnet.dk
Claus
C
Moser
Peter Ø
PØ
Jensen
Tacjana
T
Pressler
Birgitte
B
Frederiksen
Susanne
S
Lanng
Arsalan
A
Kharazmi
Christian
C
Koch
Niels
N
Høiby
D000293:Adolescent; D000328:Adult; D002908:Chronic Disease; D003550:Cystic Fibrosis / Q000097:blood / Q000150:complications / Q000175:diagnosis*; D016207:Cytokines / Q000097:blood; D005260:Female; D016179:Granulocyte Colony-Stimulating Factor / Q000097:blood*; D016178:Granulocyte-Macrophage Colony-Stimulating Factor / Q000097:blood*; D006801:Humans; D008297:Male; D018410:Pneumonia, Bacterial / Q000097:blood / Q000150:complications / Q000175:diagnosis*; D011379:Prognosis; D011552:Pseudomonas Infections / Q000097:blood / Q000150:complications / Q000175:diagnosis*; D011550:Pseudomonas aeruginosa; D018417:Th1 Cells / Q000276:immunology*; D018418:Th2 Cells / Q000276:immunology*
D016207:Cytokines; D016179:Granulocyte Colony-Stimulating Factor; D016178:Granulocyte-Macrophage Colony-Stimulating Factor