Home >> Respirology, Volume 11, Number 6

Elevated levels of interferon γ-inducible protein-10 and epithelial neutrophil-activating peptide-78 in patients with pulmonary sarcoidosis

Authors: SUGIYAMA, Kanako; MUKAE, Hiroshi; ISHII, Hiroshi; KAKUGAWA, Tomoyuki; ISHIMOTO, Hiroshi; NAKAYAMA, Seiko; SHIRAI, Ryo; FUJII, Takeshi; MIZUTA, Yohei; KOHNO, Shigeru

Source: Respirology, Volume 11, Number 6, November 2006 , pp. 708-714(7)

Publisher: Wiley-Blackwell

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Abstract:

Elevated levels of interferon γ-inducible protein-10 and epithelial neutrophil-activating peptide-78 in patients with pulmonary sarcoidosis

SUGIYAMA K, MUKAE H, ISHII H, KAKUGAWA T, ISHIMOTO H, NAKAYAMA S, SHIRAI R, FUJII T, MIZUTA Y, KOHNO S. Respirology 2006; 11: 708-714 Objective and background: 

Interferon γ-inducible protein (IP)-10 and epithelial neutrophil-activating peptide (ENA)-78 belong to the CXC chemokine family and are important factors in inflammatory lung diseases. In sarcoidosis, the potential role of IP-10 to regulate the migration and activation of T-cells towards sites of sarcoid activity has been suggested. Methods: 

In this study, the concentrations of IP-10 and ENA-78 in the serum and BAL fluid of patients with different stages of active pulmonary sarcoidosis (n = 41) and healthy subjects (n = 12) were measured by enzyme-linked immunosorbent assay to evaluate the contribution of these CXC chemokines to this disease. Results: 

Serum and BAL fluid concentrations of IP-10 and BAL fluid levels of ENA-78 in patients with sarcoidosis were significantly higher than those in control subjects. The serum levels of IP-10 were significantly increased only in patients with stages I and II sarcoidosis, while BAL fluid levels of ENA-78 were increased only in stage III sarcoidosis. In addition, serum concentrations of IP-10 were elevated in patients with extrapulmonary lesions compared with those without such lesions. In patients with sarcoidosis, IP-10 concentrations in BAL fluid correlated with lymphocyte proportions in BAL fluid. Conclusion: 

IP-10 may play an important role in regulating lymphocytes into the lung and that ENA-78 may be associated with lung parenchymal disease in pulmonary sarcoidosis.
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