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A combination of baseline plasma immune markers can predict therapeutic response in multidrug resistant tuberculosis
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A combination of baseline plasma immune markers can predict therapeutic response in multidrug resistant tuberculosis
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Journal Article
A combination of baseline plasma immune markers can predict therapeutic response in multidrug resistant tuberculosis
2017
Overview
To identify plasma markers predictive of therapeutic response in patients with multidrug resistant tuberculosis (MDR-TB).
Fifty HIV-negative patients with active pulmonary MDR-TB were analysed for six soluble analytes in plasma at the time of initiating treatment (baseline) and over six months thereafter. Patients were identified as sputum culture positive or negative at baseline. Culture positive patients were further stratified by the median time to sputum culture conversion (SCC) as fast responders (< 76 days) or slow responders (≥ 76 days). Chest X-ray scores, body mass index, and sputum smear microscopy results were obtained at baseline.
Unsupervised hierarchical clustering revealed that baseline plasma levels of IP-10/CXCL10, VEGF-A, SAA and CRP could distinguish sputum culture and cavitation status of patients. Among patients who were culture positive at baseline, there were significant positive correlations between plasma levels of CRP, SAA, VEGF-A, sIL-2Rα/CD40, and IP-10 and delayed SCC. Using linear discriminant analysis (LDA) and Receiver Operating Curves (ROC), we showed that a combination of MCP-1/CCL2, IP-10, sIL-2Rα, SAA, CRP and AFB smear could distinguish fast from slow responders and were predictive of delayed SCC with high sensitivity and specificity.
Plasma levels of specific chemokines and inflammatory markers measured before MDR-TB treatment are candidate predictive markers of delayed SCC. These findings require validation in a larger study.
Publisher
Public Library of Science (PLoS),Public Library of Science
Subject
/ Adult
/ Age
/ Alveoli
/ Amyloid
/ Analysis
/ Antitubercular Agents - therapeutic use
/ Assaying
/ Bacilli
/ Blood
/ Bronchus
/ C-Reactive Protein - analysis
/ Damage
/ Division
/ Drugs
/ Female
/ Gates
/ HIV
/ Human immunodeficiency virus
/ Humans
/ Male
/ Medicine
/ Medicine and Health Sciences
/ Monocyte chemoattractant protein 1
/ Multidrug resistant organisms
/ Necrosis
/ Patients
/ Proteins
/ Q
/ Quality
/ R
/ Research and Analysis Methods
/ Science
/ Serum Amyloid A Protein - analysis
/ Tuberculosis, Multidrug-Resistant
/ Tuberculosis, Multidrug-Resistant - blood
/ Tuberculosis, Multidrug-Resistant - drug therapy
/ Tuberculosis, Multidrug-Resistant - immunology
/ Tumors
/ Vascular endothelial growth factor
