Localized eosinophil degranulation mediates disease in tropical pulmonary eosinophilia

Laura O'Bryan, Paula Pinkston, V. Kumaraswami, V. Vijayan, Gordon Yenokida, Helene F. Rosenberg, Ronald Crystal, Eric A. Ottesen, Thomas B. Nutman

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

To explore the mechanisms underlying the eosinophil-mediated inflammation of tropical pulmonary eosinophilia (TPE), bronchoalveolar lavage (BAL) fluid, serum, and supernatants from pulmonary and blood leukocytes (WBC) from patients with acute TPE (n = 6) were compared with those obtained from healthy uninfected individuals (n = 4) and from patients with asthma (n = 4) or elephantiasis (n = 5). Although there were no significant differences in the levels of interleukin-4 (IL-4), IL-5, IL-13, eotaxin, granulocyte-macrophage colony-stimulating factor, RANTES, or eosinophil cationic protein, there was a marked increase in eosinophil-derived neurotoxin (EDN) both systemically and in the lungs of individuals with TPE compared to each of the control groups (P < 0.02). Moreover, there was a compartmentalization of this response, with EDN levels being higher in the BAL fluid than in the serum (P < 0.02). Supernatants from WBC from either whole blood or BAL cells were examined for chemokines, cytokines, eosinophil degranulation products, and arachidonic acid metabolites. Of the many mediators examined - particularly those associated with eosinophil trafficking - only EDN (in BAL fluid and WBC) and MIP-1α (in WBC) levels were higher for TPE patients than for the non-TPE control groups (P < 0.02). These data suggest it is the eosinophilic granular protein EDN, an RNase capable of damaging the lung epithelium, that plays the most important role in the pathogenesis of TPE.

Original languageEnglish
Pages (from-to)1337-1342
Number of pages6
JournalInfection and Immunity
Volume71
Issue number3
DOIs
Publication statusPublished - 1 Mar 2003
Externally publishedYes

Fingerprint

Pulmonary Eosinophilia
Eosinophilia
Eosinophil-Derived Neurotoxin
Eosinophils
Bronchoalveolar Lavage Fluid
Lung
Elephantiasis
Eosinophil Cationic Protein
Chemokine CCL5
Control Groups
Interleukin-13
Interleukin-5
Bronchoalveolar Lavage
Granulocyte-Macrophage Colony-Stimulating Factor
Ribonucleases
Serum
Chemokines
Arachidonic Acid
Interleukin-4
Leukocytes

ASJC Scopus subject areas

  • Parasitology
  • Microbiology
  • Immunology
  • Infectious Diseases

Cite this

O'Bryan, L., Pinkston, P., Kumaraswami, V., Vijayan, V., Yenokida, G., Rosenberg, H. F., ... Nutman, T. B. (2003). Localized eosinophil degranulation mediates disease in tropical pulmonary eosinophilia. Infection and Immunity, 71(3), 1337-1342. https://doi.org/10.1128/IAI.71.3.1337-1342.2003

Localized eosinophil degranulation mediates disease in tropical pulmonary eosinophilia. / O'Bryan, Laura; Pinkston, Paula; Kumaraswami, V.; Vijayan, V.; Yenokida, Gordon; Rosenberg, Helene F.; Crystal, Ronald; Ottesen, Eric A.; Nutman, Thomas B.

In: Infection and Immunity, Vol. 71, No. 3, 01.03.2003, p. 1337-1342.

Research output: Contribution to journalArticle

O'Bryan, L, Pinkston, P, Kumaraswami, V, Vijayan, V, Yenokida, G, Rosenberg, HF, Crystal, R, Ottesen, EA & Nutman, TB 2003, 'Localized eosinophil degranulation mediates disease in tropical pulmonary eosinophilia', Infection and Immunity, vol. 71, no. 3, pp. 1337-1342. https://doi.org/10.1128/IAI.71.3.1337-1342.2003
O'Bryan L, Pinkston P, Kumaraswami V, Vijayan V, Yenokida G, Rosenberg HF et al. Localized eosinophil degranulation mediates disease in tropical pulmonary eosinophilia. Infection and Immunity. 2003 Mar 1;71(3):1337-1342. https://doi.org/10.1128/IAI.71.3.1337-1342.2003
O'Bryan, Laura ; Pinkston, Paula ; Kumaraswami, V. ; Vijayan, V. ; Yenokida, Gordon ; Rosenberg, Helene F. ; Crystal, Ronald ; Ottesen, Eric A. ; Nutman, Thomas B. / Localized eosinophil degranulation mediates disease in tropical pulmonary eosinophilia. In: Infection and Immunity. 2003 ; Vol. 71, No. 3. pp. 1337-1342.
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