Immunoregulatory properties of the cytokine IL-34

  • Carole Guillonneau
  • Séverine Bézie
  • Ignacio Anegon
Review

DOI: 10.1007/s00018-017-2482-4

Cite this article as:
Guillonneau, C., Bézie, S. & Anegon, I. Cell. Mol. Life Sci. (2017). doi:10.1007/s00018-017-2482-4

Abstract

Interleukin-34 is a cytokine with only partially understood functions, described for the first time in 2008. Although IL-34 shares very little homology with CSF-1 (CSF1, M-CSF), they share a common receptor CSF-1R (CSF-1R) and IL-34 has also two distinct receptors (PTP-ζ) and CD138 (syndecan-1). To make the situation more complex, IL-34 has also been shown as pairing with CSF-1 to form a heterodimer. Until now, studies have demonstrated that this cytokine is released by some tissues that differ to those where CSF-1 is expressed and is involved in the differentiation and survival of macrophages, monocytes, and dendritic cells in response to inflammation. The involvement of IL-34 has been shown in areas as diverse as neuronal protection, autoimmune diseases, infection, cancer, and transplantation. Our recent work has demonstrated a new and possible therapeutic role for IL-34 as a Foxp3+ Treg-secreted cytokine mediator of transplant tolerance. In this review, we recapitulate most recent findings on IL-34 and its controversial effects on immune responses and address its immunoregulatory properties and the potential of targeting this cytokine in human.

Keywords

Immune tolerance Tregs Ischemia reperfusion Macrophages Osteopetrosis CSF-1(M-CSF) 

Copyright information

© Springer International Publishing 2017

Authors and Affiliations

  1. 1.INSERM UMR1064, Center for Research in Transplantation and Immunology-ITUNUniversité de NantesNantes Cedex 01France
  2. 2.Institut de Transplantation Urologie Néphrologie (ITUN), CHU NantesNantesFrance