Journal
CYTOKINE
Volume 88, Issue -, Pages 99-107Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cyto.2016.08.030
Keywords
Pulmonary tuberculosis; Immune response; Biosignature; Diagnostic; Prognostic
Funding
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo - Brazil [2011/12199-0]
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior - Brazil (CAPES)
- Conselho Nacional de Pesquisa - Brazil (CNPq)
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Although much research has been done related to biomarker discovery for tuberculosis infection, a set of biomarkers that can discriminate between active and latent TB diseases remains elusive. In the current study we correlate clinical aspects of TB disease with changes in the immune response as determined by biomarkers detected in plasma. Our study measured 18 molecules in human plasma in 17 patients with active disease (APTB), 14 individuals with latent tuberculosis infection (LTBI) and 16 uninfected controls (CTRL). We found that active tuberculosis patients have increased plasma levels of IL-6, IP-10, TNF-alpha sCD163 and sCD14. Statistical analysis of these biomarkers indicated that simultaneous measurement of sCD14 and IL-6 was able to diagnose active tuberculosis infection with 83% accuracy. We also demonstrated that TNF-alpha and sCD163 were correlated with tuberculosis severity. We showed that the simultaneous detection of both plasma sCD14 and IL-6 is a promising diagnostic approach to identify APTB, and further, measurement of TNF-alpha and sCD163 can identify the most severe cases of tuberculosis. (C) 2016 Elsevier Ltd. All rights reserved.
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