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  • Title: [Chronic eosinophilic pneumonia associated with high concentrations of interleukin-5, -6, and granulocyte colony stimulating factor in serum and in pleural fluid].
    Author: Ino-oka N, Inoue A, Shindoh Y, Suzuki T, Konishi K.
    Journal: Nihon Kyobu Shikkan Gakkai Zasshi; 1997 Aug; 35(8):867-72. PubMed ID: 9366161.
    Abstract:
    A 44-year-old Japanese man who had suffered from bronchial asthma since childhood was given the diagnosis of chronic eosinophilic pneumonia because of his symptoms, chest roentgenographic findings, and the results of a transbronchial lung biopsy. At the time of the onset of the disease, the pleural effusion contained 73% eosinophils. Symptoms were relieved and the laboratory findings returned forward normal after a short course of high-dose corticosteroids. The concentrations of IL-5, IL-6, and G-CSF in pleural fluid and in serum were very high; the concentrations of these cytokines were 3 times to 35 times higher in pleural fluid than in serum. In contrast, no IL-3 or GM-CSF was detected in any of these samples. The precise etiology of chronic eosinophilic pneumonia is still unclear, but this case suggests that inappropriate production of IL-5, IL-6 and G-CSF in the lung play a pivotal role in this disease. Inhibition of the production of these cytokines may be another therapeutic approach to this disease.
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