Oncostatin M causes eotaxin-1 release from airway smooth muscle: Synergy with IL-4 and IL-13

Débora S. Faffe, Lesley Flynt, Matthew Mellema, Paul E. Moore, Eric S. Silverman, Venkat Subramaniam, Matthew R. Jones, Joseph P. Mizgerd, Timothy Whitehead, Amy Imrich, Reynold A. Panettieri, Stephanie A. Shore

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


Background: Eotaxin is implicated in asthmatic eosinophilia. Oncostatin M (OSM) causes eotaxin release from fibroblasts. Objective: We sought to examine the effects and mechanism of action of OSM and other IL-6 family cytokines on eotaxin release from human airway smooth muscle cells. Methods: Eotaxin 1 release was measured by means of ELISA. Western blotting was used to examine mitogen-activated protein kinase and signal transducer and activator of transcription 3 (STAT-3) phosphorylation. Eotaxin promoter activity was analyzed in cells transfected with wild-type STAT-3, a mutant form of STAT-3 that cannot be phosphorylated, and a constitutively active form of STAT-3. The mRNA and protein expression of IL-4Rα, the signaling receptor for IL-4 and IL-13, was evaluated by means of real-time PCR and flow cytometry, respectively. Results: OSM increased eotaxin 1 release and augmented IL-4- or IL-13-induced eotaxin release, whereas other IL-6 family cytokines did not. OSM caused a greater increase in STAT-3 phosphorylation and STAT-3-mediated gene transcription than other IL-6 family cytokines. OSM increased eotaxin promoter activity and augmented IL-13- and IL-4-induced increases in promoter activity. The constitutively active form of STAT-3 increased eotaxin promoter activity, whereas the mutant form of STAT-3 that cannot be phosphorylated significantly reduced eotaxin promoter activity induced by OSM or IL-4 plus OSM. OSM increased IL-4Rα mRNA and protein levels. Conclusions: OSM induces eotaxin 1 expression in human airway smooth muscle cells by a mechanism involving STAT-3. OSM synergizes with IL-13 and IL-4 to increase eotaxin 1 expression, possibly as a result of effects on IL-4Rα expression.

Original languageEnglish (US)
Pages (from-to)514-520
Number of pages7
JournalJournal of Allergy and Clinical Immunology
Issue number3
StatePublished - Mar 2005
Externally publishedYes


  • c-Jun N-terminal kinase
  • Extracellular signal-regulated kinase
  • IL-4Rα
  • Monocyte chemoattractant protein 1
  • Signal transducer and activator of transcription 3
  • Vascular endothelial growth factor

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology


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