Interleukin-11 classic but not trans-signaling is essential for fertility in mice

Placenta. 2017 Sep:57:13-16. doi: 10.1016/j.placenta.2017.05.015. Epub 2017 May 28.

Abstract

The cytokine interleukin (IL)-11 activates its target cells through binding to the membrane-bound IL-11 receptor (IL-11R). Female mice deficient in IL-11R (Il11ra-/-) are infertile due to a defect in decidualization when the blastocyst implants. We have recently shown that IL-11 can also signal via a soluble IL-11R (trans-signaling). Which IL-11 pathway is required for fertility in mice is unknown. We confirm that female Il11ra-/-mice, lacking both classic and trans-signaling, are infertile. In contrast, the selective blockade of IL-11 trans-signaling does not affect fertility in mice. These results show that classic, but not trans-signaling of IL-11, is essential for fertility in mice.

Keywords: Blastocyst; Fertility; Interleukin-11; Interleukin-11 receptor; Trans-signaling.

MeSH terms

  • Animals
  • Female
  • Fertility*
  • Interleukin-11 / metabolism*
  • Interleukin-11 Receptor alpha Subunit / genetics
  • Interleukin-11 Receptor alpha Subunit / metabolism
  • Male
  • Mice, Inbred C57BL
  • Mice, Knockout

Substances

  • Interleukin-11
  • Interleukin-11 Receptor alpha Subunit