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IL-24 modulates IFN-γ expression in patients with tuberculosis
- Source :
-
Immunology Letters . Apr2008, Vol. 117 Issue 1, p57-62. 6p. - Publication Year :
- 2008
-
Abstract
- Abstract: IL-24 is a newly described member of the IL-10 family. We previously demonstrated that PBMC from TB patients exhibited low levels of IL-24 and IFN-γ compared to subjects with latent tuberculosis infection (LTBI). In order to investigate the role of IL-24 in IFN-γ expression in TB patients, we stimulated PBMC from individuals with LTBI or TB patients with the Mtb-specific antigen, early secretory antigenic target-6 (ESAT-6) and measured cytokine expression using quantitative real-time PCR (qPCR). Exogenous IL-24 increased IFN-γ expression in PBMC obtained from TB patients while neutralization of IL-24 reduced IFN-γ expression in PBMC from subjects with LTBI. Exogenous IL-24 enhanced IFN-γ expression by increasing expression of IL-12 family cytokines, including IL-12α, IL-12β, IL-23α and IL-27, and by reducing FOXP3 expression in PBMC from TB patients. This is the first demonstration that IL-24 may play an important role in IFN-γ expression following infection with Mtb. [Copyright &y& Elsevier]
- Subjects :
- *TUBERCULOSIS
*MYCOBACTERIAL diseases
*LUNG diseases
*IMMUNOREGULATION
Subjects
Details
- Language :
- English
- ISSN :
- 01652478
- Volume :
- 117
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Immunology Letters
- Publication Type :
- Academic Journal
- Accession number :
- 31302866
- Full Text :
- https://doi.org/10.1016/j.imlet.2007.11.018