Bronchoalveolar cellularity and interleukin-8 levels in measles bronchiolitis obliterans

Young Yull Koh, Da Eun Jung, Ji Yeon Koh, Jung Yeon Kim, Young Yoo, Chang Keun Kim

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    43 Citations (Scopus)

    Abstract

    Background: Measles virus infection may progress to a chronic obstructive process including bronchiolitis obliterans (BO). This study investigates pulmonary cellular profiles and interleukin (IL)-8 levels in patients with BO following the measles. Methods: BAL fluid was obtained from 12 children with BO who had a history of measles pneumonia during an outbreak in 2000 and 2001. BAL cell counts and differentials were compared to control patients as well as BAL IL-8 levels, which were measured by enzyme-linked immunosorbent assay. Immunohistochemical staining of BAL cells and three open-lung biopsy specimens were also analyzed for T-cell surface markers CD3, CD4, and CD8. Results: BAL cellular profiles were characterized by a significantly increased percentage of neutrophils in the measles BO group (median, 16.0%) compared to the control group (2.3%) [p < 0.01]. BAL IL-8 levels were also markedly increased in the measles BO group (mean ± SD, 418.6 ± 286.0 pg/mL) compared to the control group (92.8 ± 126.7 pg/mL) [p < 0.01]. BAL IL-8 levels correlated significantly with neutrophil percentages in both the measles BO group (r = 0.86, p = 0.000) and the control group (r = 0.79, p = 0.007). The lymphocyte subsets were characterized by a significantly increased number of CD8+ cells, resulting in a decreased CD4/CD8 ratio in the BAL and the biopsy specimens. Conclusion: These results suggest that pulmonary neutrophils and IL-8, along with CD8+ T lymphocytes may play an important role in the pathogenesis of BO after measles virus infection.

    Original languageEnglish
    Pages (from-to)1454-1460
    Number of pages7
    JournalChest
    Volume131
    Issue number5
    DOIs
    Publication statusPublished - 2007 May

    Keywords

    • Bronchiolitis obliterans
    • CD8
    • Interleukin-8
    • Measles
    • Neutrophils

    ASJC Scopus subject areas

    • Pulmonary and Respiratory Medicine
    • Critical Care and Intensive Care Medicine
    • Cardiology and Cardiovascular Medicine

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