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WNK1 kinase balances T cell adhesion versus migration in vivo.

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Publication date 2016
Author Köchl Robert, Thelen Flavian, Vanes Lesley, Brazão Tiago F, Fountain Kathryn, Xie Jian, Huang Chou-Long, Lyck Ruth, Stein Jens V, Tybulewicz Victor L J,
Project Cell Migration
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Original article (peer-reviewed)

Journal Nature immunology
Volume (Issue) 17(9)
Page(s) 1075 - 83
Title of proceedings Nature immunology
DOI 10.1038/ni.3495

Abstract

Adhesion and migration of T cells are controlled by chemokines and by adhesion molecules, especially integrins, and have critical roles in the normal physiological function of T lymphocytes. Using an RNA-mediated interference screen, we identified the WNK1 kinase as a regulator of both integrin-mediated adhesion and T cell migration. We found that WNK1 is a negative regulator of integrin-mediated adhesion, whereas it acts as a positive regulator of migration via the kinases OXSR1 and STK39 and the ion co-transporter SLC12A2. WNK1-deficient T cells home less efficiently to lymphoid organs and migrate more slowly through them. Our results reveal that a pathway previously known only to regulate salt homeostasis in the kidney functions to balance T cell adhesion and migration.
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