Expression of Plet1 controls interstitial migration of murine small intestinal dendritic cells.

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State: Public
Version: Final published version
Serval ID
serval:BIB_2F524A4CA5D8
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Expression of Plet1 controls interstitial migration of murine small intestinal dendritic cells.
Journal
European Journal of Immunology
Author(s)
Karrich J.J., Romera-Hernández M., Papazian N., Veenbergen S., Cornelissen F., Aparicio-Domingo P., Stenhouse F.H., Peddie C.D., Hoogenboezem R.M., den Hollander CWJ, Gaskell T., Medley T., Boon L., Blackburn C.C., Withers D.R., Samsom J.N., Cupedo T.
ISSN
1521-4141 (Electronic)
ISSN-L
0014-2980
Publication state
Published
Issued date
2019
Peer-reviewed
Oui
Volume
49
Number
2
Pages
290-301
Language
english
Abstract
Under homeostatic conditions, dendritic cells (DCs) continuously patrol the intestinal lamina propria. Upon antigen encounter, DCs initiate C-C motif chemokine receptor 7 (CCR7) expression and migrate into lymph nodes to direct T cell activation and differentiation. The mechanistic underpinnings of DC migration from the tissues to lymph nodes have been largely elucidated, contributing greatly to our understanding of DC functionality and intestinal immunity. In contrast, the molecular mechanisms allowing DCs to efficiently migrate through the complex extracellular matrix of the intestinal lamina propria prior to antigen encounter are still incompletely understood. Here we show that small intestinal murine CD11b <sup>+</sup> CD103 <sup>+</sup> DCs express Placenta-expressed transcript 1 (Plet1), a glycophoshatidylinositol (GPI)-anchored surface protein involved in migration of keratinocytes during wound healing. In the absence of Plet1, CD11b <sup>+</sup> CD103 <sup>+</sup> DCs display aberrant migratory behavior, and accumulate in the small intestine, independent of CCR7 responsiveness. RNA-sequencing indicated involvement of Plet1 in extracellular matrix-interactiveness, and subsequent in-vitro migration assays revealed that Plet1 augments the ability of DCs to migrate through extracellular matrix containing environments. In conclusion, our findings reveal that expression of Plet1 facilitates homeostatic interstitial migration of small intestinal DCs.
Keywords
CD103, Intestinal dendritic cells, Migration, Plet1, Wound healing
Pubmed
Web of science
Open Access
Yes
Create date
28/02/2019 8:28
Last modification date
20/08/2019 13:13
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