Paracrine IL-2 is required for optimal type 2 effector cytokine production

Matthew R. Olson, Benjamin J. Ulrich, Sarah A. Hummel, Ibrahim Khan, Brice Meuris, Yesesri Cherukuri, Alexander L. Dent, Sarath Chandra Janga, Mark H. Kaplan

Research output: Contribution to journalArticle

2 Scopus citations


IL-2 is a pleiotropic cytokine that promotes the differentiation of Th cell subsets, including Th1, Th2, and Th9 cells, but it impairs the development of Th17 and T follicular helper cells. Although IL-2 is produced by all polarized Th subsets to some level, how it impacts cytokine production when effector T cells are restimulated is unknown. We show in this article that Golgi transport inhibitors (GTIs) blocked IL-9 production. Mechanistically, GTIs blocked secretion of IL-2 that normally feeds back in a paracrine manner to promote STAT5 activation and IL-9 production. IL-2 feedback had no effect on Th1- or Th17-signature cytokine production, but it promoted Th2- and Th9-associated cytokine expression. These data suggest that the use of GTIs results in an underestimation of the presence of type 2 cytokine-secreting cells and highlight IL-2 as a critical component in optimal cytokine production by Th2 and Th9 cells in vitro and in vivo.

Original languageEnglish (US)
Pages (from-to)4352-4359
Number of pages8
JournalJournal of Immunology
Issue number11
StatePublished - Jun 1 2017

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

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    Olson, M. R., Ulrich, B. J., Hummel, S. A., Khan, I., Meuris, B., Cherukuri, Y., Dent, A. L., Janga, S. C., & Kaplan, M. H. (2017). Paracrine IL-2 is required for optimal type 2 effector cytokine production. Journal of Immunology, 198(11), 4352-4359.