Journal
CLINICAL INFECTIOUS DISEASES
Volume 33, Issue 7, Pages 976-982Publisher
UNIV CHICAGO PRESS
DOI: 10.1086/322670
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- NIAID NIH HHS [AI-01654, AI-01637] Funding Source: Medline
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Extrapulmonary tuberculosis is presumably a marker of underlying immunodeficiency, but cytokine response pathways in these patients have not been well studied. Cytokine responses of peripheral blood mononuclear cells from human immunodeficiency virus-seronegative adults with prior culture-confirmed extrapulmonary tuberculosis were compared with those of persons with latent Mycobacterium tuberculosis infection. Mitogen-stimulated interferon (IFN)-gamma production, interleukin (IL)-12 production, and -gamma receptor- and IL-12 receptor-mediated cytokine production did not differ between case patients and control patients. However, median resting IL-8 production was significantly lower in case patients than control patients (8051 vs. 19,290 pg/mL; P=.009). In addition, the median tumor necrosis factor (TNF)-alpha response was lower in case patients than control patients after stimulation with lipopolysaccharide (833 vs. 1149 pg/mL; P=.06) and lipopolysaccharide plus IFN-gamma (3301 vs. 4411 pg/mL; P=.04). These abnormalities in resting IL-8 and lipopolysaccharide-induced TNF-alpha production were not associated with IFN-gamma or IL-12 abnormalities and were detected up to several years after cure of disease, suggesting an abnormality in innate immunity.
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