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A stromal cell niche sustains ILC2-mediated type-2 conditioning in adipose tissue.

Published version
Peer-reviewed

Type

Article

Change log

Authors

Rana, Batika MJ 
Jou, Eric 
Barlow, Jillian L 
Rodriguez-Rodriguez, Noe 
Walker, Jennifer A 

Abstract

Group-2 innate lymphoid cells (ILC2), type-2 cytokines, and eosinophils have all been implicated in sustaining adipose tissue homeostasis. However, the interplay between the stroma and adipose-resident immune cells is less well understood. We identify that white adipose tissue-resident multipotent stromal cells (WAT-MSCs) can act as a reservoir for IL-33, especially after cell stress, but also provide additional signals for sustaining ILC2. Indeed, we demonstrate that WAT-MSCs also support ICAM-1-mediated proliferation and activation of LFA-1-expressing ILC2s. Consequently, ILC2-derived IL-4 and IL-13 feed back to induce eotaxin secretion from WAT-MSCs, supporting eosinophil recruitment. Thus, MSCs provide a niche for multifaceted dialogue with ILC2 to sustain a type-2 immune environment in WAT.

Description

Keywords

Adipose Tissue, White, Animals, Cell Proliferation, Eosinophils, Immunity, Innate, Interleukin-33, Interleukin-5, Lymphocytes, Mice, Inbred BALB C, Mice, Inbred C57BL, Stromal Cells

Journal Title

J Exp Med

Conference Name

Journal ISSN

0022-1007
1540-9538

Volume Title

216

Publisher

Rockefeller University Press
Sponsorship
Medical Research Council (G0600717)
Medical Research Council (G0802051)
Medical Research Council (G0400192)
British Heart Foundation (None)
Medical Research Council (MC_UU_12012/2)
Medical Research Council (MC_UU_12012/5)
MRC (MC_UU_00014/2)
MRC (MC_UU_00014/5)
British Heart Foundation (RG/18/7/33636)
Medical Research Council (MC_PC_12012)
Medical Research Council (G0600717/1)