Transcytosis of IL-11 and Apical Redirection of gp130 Is Mediated by IL-11α Receptor

Niloufar Monhasery, Jens Moll, Carly Cuman, Manuel Franke, Larissa Lamertz, Rebecca Nitz, Boris Görg, Dieter Häussinger, Juliane Lokau, Doreen M. Floss, Roland Piekorz, Eva Dimitriadis, Christoph Garbers, Jürgen Scheller

Research output: Contribution to journalArticleResearchpeer-review

12 Citations (Scopus)

Abstract

Interleukin (IL)-11 signaling is involved in various processes, including epithelial intestinal cell regeneration and embryo implantation. IL-11 signaling is initiated upon binding of IL-11 to IL-11R1 or IL-11R2, two IL-11α-receptor splice variants, and gp130. Here, we show that IL-11 signaling via IL-11R1/2:gp130 complexes occurs on both the apical and basolateral sides of polarized cells, whereas IL-6 signaling via IL-6R:gp130 complexes is restricted to the basolateral side. We show that basolaterally supplied IL-11 is transported and released to the apical extracellular space via transcytosis in an IL-11R1-dependent manner. By contrast, IL-6R and IL-11R2 do not promote transcytosis. In addition, we show that transcytosis of IL-11 is dependent on the intracellular domain of IL-11R1 and that synthetic transfer of the intracellular domain of IL-11R1 to IL-6R promotes transcytosis of IL-6. Our data define IL-11R as a cytokine receptor with transcytotic activity by which IL-11 and IL-6:soluble IL-6R complexes are transported across cellular barriers.

Original languageEnglish
Pages (from-to)1067-1081
Number of pages15
JournalCell Reports
Volume16
Issue number4
DOIs
Publication statusPublished - 26 Jul 2016

Keywords

  • apical
  • basolateral
  • gp130
  • IL-11
  • IL-11R
  • IL-6
  • transcytosis

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