Cytokine responses to quantiferon peptides in pediatric tuberculosis: A pilot study

Marine Armand, Vibol Chhor, Agathe de Lauzanne, Valérie Guérin-El Khourouj, Béatrice Pédron, Mohamed Jeljeli, Pierre Gressens, Albert Faye, Ghislaine Sterkers

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

Objectives
Detailed understanding of tuberculosis (TB) immunopathology and cytokine/chemokine responses can ultimately lead to the development of new diagnostic tools, especially useful in children where TB diagnosis remains challenging.

Methods
Nineteen cytokine/chemokine responses to Mycobacterium tuberculosis (M.tb) antigens were analyzed in 47 children distributed as follow: 28 with TB-disease (TD), 12 with latent TB and 7 uninfected controls. All the cytokines and chemokines were quantified in a multiplexed microsphere-based assay by using residual plasma from the quantiFERON kit (IFNγ release assay).

Results
IP-10, IL-2, IL-5 and IL-13 were among the best cytokines to diagnose infection as related by the area under ROC curve for IP-10 (0.96, 95%CI: 0.91–1.00), IL-2 (0.98, 95%CI: 0.93–1.02), IL-5 (0.91, 95%CI: 0.81–1.01) and IL-13 (0.97, 95%CI: 0.93–1.00). None of the 5 biomarkers, however, discriminated TB-disease from latent-TB. Finally, lower IL-5 (p = 0.02) and IL-13 (p = 0.02) levels were observed in severe opposed to non-severe TB.

Conclusion
These results suggest that IP-10, IL-2, IL-5 and IL-13 may find a diagnostic application in pediatric tuberculosis and argue against the paradigm of a negative influence of Th2 responses in severe pediatric M.tb infection.
Original languageEnglish
Article numberN/A
Pages (from-to)62-70
Number of pages9
JournalThe Journal of infection
Volume68
Issue number1
DOIs
Publication statusPublished - Jan 2014

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