Role of QuantiFERON-TB Gold antigen-specific IL-1β in diagnosis of active tuberculosis

Maddineni Prabhavathi, Basirudeen S. Kabeer, Anbarasu Deenadayalan, Alamelu Raja

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The main objective of the study was to evaluate whether in vitro QuantiFERON-TB Gold In-Tube (QFT-GIT) assay antigen-specific IL-1β, TNF-α, IL-2, IL-6, IL-8 and IL-12 (p40) production is associated with active TB. In a cohort of 77 pulmonary TB patients (PTB), 67 healthy household contacts (HHC) and 83 healthy control subjects (HCS), the antigen-specific cytokines levels were determined in supernatants generated from QFT-GIT tubes. Antigen-specific IL-1β levels were significantly higher in PTB than HHC and HCS. At a fixed cutoff point (1,108 pg/ml), IL-1β showed positivity of 62.33 % in PTB, 22.38 % in HHC and 22.89 % in HCS. Moreover, antigen-specific IL-1β assay can differentiate PTB and HHC (believed to be latently infected) (p < 0.0001). Like IL-1β, significantly higher levels of antigen-specific TNF-α were associated with PTB and displayed 43.63 % positivity in PTB. The antigen-specific IL-2 levels were associated both with PTB (54.54 %) and HHC (48.14 %). Other cytokines levels did not differ among the groups. Our results suggest that antigen-specific IL-1β can be used as a biomarker for active TB diagnosis as well as for differential diagnosis of PTB and LTBI.

Original languageEnglish
Pages (from-to)567-574
Number of pages8
JournalMedical Microbiology and Immunology
Volume204
Issue number5
DOIs
Publication statusPublished - 11 Dec 2014
Externally publishedYes

Fingerprint

Interleukin-1
Gold
Tuberculosis
Antigens
Lung
Healthy Volunteers
Interleukin-2
Cytokines
Interleukin-12
Interleukin-8
Interleukin-6
Differential Diagnosis
Biomarkers

Keywords

  • Diagnosis
  • Interleukin-1beta
  • Necrosis factor
  • QuantiFERON-TB Gold assay
  • Tuberculosis
  • Tumor

ASJC Scopus subject areas

  • Immunology and Allergy
  • Microbiology (medical)
  • Immunology

Cite this

Role of QuantiFERON-TB Gold antigen-specific IL-1β in diagnosis of active tuberculosis. / Prabhavathi, Maddineni; Kabeer, Basirudeen S.; Deenadayalan, Anbarasu; Raja, Alamelu.

In: Medical Microbiology and Immunology, Vol. 204, No. 5, 11.12.2014, p. 567-574.

Research output: Contribution to journalArticle

Prabhavathi, Maddineni ; Kabeer, Basirudeen S. ; Deenadayalan, Anbarasu ; Raja, Alamelu. / Role of QuantiFERON-TB Gold antigen-specific IL-1β in diagnosis of active tuberculosis. In: Medical Microbiology and Immunology. 2014 ; Vol. 204, No. 5. pp. 567-574.
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