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Serum CXCR3 ligands as biomarkers for the diagnosis and treatment monitoring of tuberculosis.

Authors
Chung, W  | Lee, K  | Jung, Y  | Kim, Y | Park, J  | Sheen, S  | Lee, J | Kang, D  | Park, K
Citation
The international journal of tuberculosis and lung disease, 19(12). : 1476-1484, 2015
Journal Title
The international journal of tuberculosis and lung disease
ISSN
1027-37191815-7920
Abstract
SETTING: Tertiary care academic medical centre.

OBJECTIVE: To evaluate the clinical utility of CXC chemokine receptor 3 (CXCR3) ligands in the diagnosis and monitoring of tuberculosis (TB).

DESIGN: Presumptive TB patients (active TB, 256; non-TB disease, 52) and 201 healthy controls were enrolled. The serum levels of interferon-gamma (IFN-γ) and CXCR3 ligands (CXCL9, a monokine induced by IFN-γ [MIG] and CXCL11, an IFN-inducible T-cell α chemoattractant [I-TAC]) were measured using enzyme-linked immunosorbent assay. An IFN-γ release assay (IGRA) was also performed. Serial samplings were performed in 19 TB patients at baseline and at 1, 2, 3, 6 and 12 months after treatment initiation.

RESULTS: All marker levels were higher in TB patients than in controls and non-TB patients. The area under the curve (AUC) for differentiating between all TB patients and controls was 0.96 (95%CI 0.94-0.98) for CXCL9, 0.84 (95%CI 0.80-0.87) for CXCL11 and 0.61 (95%CI 0.57-0.66) for IFN-γ. CXCL9 levels afforded particularly high discriminatory power between TB patients and IGRA-positive controls (AUC = 0.95, 95%CI 0.92-0.97). The levels of CXCR3 ligands decreased significantly during follow-up, and these changes were correlated with treatment response.

CONCLUSION: CXCR3 ligands CXCL9 and CXCL11 may be useful surrogate markers for the diagnosis and follow-up of TB.
MeSH

DOI
10.5588/ijtld.15.0325
PMID
26614189
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Pulmonary & Critical Care Medicine
Journal Papers > School of Medicine / Graduate School of Medicine > Medical Humanities & Social Medicine
Ajou Authors
강, 대용  |  박, 광주  |  박, 주헌  |  신, 승수  |  이, 규성  |  정, 우영  |  정, 윤정
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