Abstract：
:Lung disease due to non-tuberculous mycobacteria (NTM) is a poorly understood condition that is difficult to treat. Treatment remains problematic as few tools are available to help clinicians monitor disease progression or predict treatment outcome. In this study, plasma levels of several inflammatory molecules and the frequency of circulating T cell subsets were measured in patients with NTM lung disease and known treatment status, and compared with their adult offspring and with unrelated healthy controls. Plasma levels of the chemokine CXCL10 and IL-18 were assessed for associations with treatment efficacy. CXCL10 was higher in patients than adult offspring (p< 0.001) and unrelated controls (p< 0.001). Plasma CXCL10 was also lower in patients who responded well to therapy or who controlled their infection without requiring therapy, when compared to patients who did not respond to therapy (p=0.03). Frequencies of activated (HLA-DR(+)) CD4(+) T cells were higher in patients than adult offspring (p<0.001) and unrelated controls (p<0.05), with the highest frequencies in individuals who had completed at least 6 months of treatment. Frequencies of activated (CD38(+)) CD8(+) T cells in most treatment responders were similar to unrelated controls. Low plasma levels of CXCL10 may reflect successful control of NTM lung disease with or without therapy. Compared with responders, patients who responded poorly to treatment generally had higher plasma levels of CXCL10 and IL-18, and higher frequencies of activated CD8(+) T cells.
journal_name
Dis Markersjournal_title
Disease markersauthors
Lim A,Allison C,Tan DB,Oliver B,Price P,Waterer Gdoi
10.3233/DMA-2010-0732subject
Has Abstractpub_date
2010-01-01 00:00:00pages
103-9issue
2eissn
0278-0240issn
1875-8630pii
52142271N4652T31journal_volume
29pub_type
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