Abstract
The infiltration, accumulation and degranulation of eosinophils in the lung represents a hallmark of active asthma. In vivo or in vitro eosinophil activation triggers the secretion of the antiapoptotic cytokine granulocyte-macrophage colony-stimulating factor (GM-CSF). We now identify Pin1, a cis-trans isomerase, as an essential component of the ribonucleoprotein complex responsible for GM-CSF mRNA stabilization, cytokine secretion and the survival of activated eosinophils. Pin1 regulated the association of the AU-rich element -binding proteins AUF1 and hnRNP C with GM-CSF mRNA, accelerating or slowing decay, respectively. These data indicate Pin1 is a key mediator of GM-CSF production.
Original language | English (US) |
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Pages (from-to) | 1280-1287 |
Number of pages | 8 |
Journal | Nature immunology |
Volume | 6 |
Issue number | 12 |
DOIs | |
State | Published - Dec 2005 |
ASJC Scopus subject areas
- Immunology and Allergy
- Immunology