Projects per year
Abstract
Effector-T-cell-mediated immunity depends on the efficient localization of antigen-primed lymphocytes to antigen-rich non-lymphoid tissue, which is facilitated by the expression of a unique set of "homing" receptors acquired by memory T cells. We report that engagement of the hepatocyte growth factor (HGF) receptor c-Met by heart-produced HGF during priming in the lymph nodes instructs T cell cardiotropism, which was associated with a specialized homing "signature" (c-Met(+)CCR4(+)CXCR3(+)). c-Met signals facilitated T cell recruitment to the heart via the chemokine receptor CCR5 by inducing autocrine CCR5 ligand release. c-Met triggering was sufficient to support cardiotropic T cell recirculation, while CCR4 and CXCR3 sustained recruitment during heart inflammation. Transient pharmacological blockade of c-Met during T cell priming led to enhanced survival of heart, but not skin, allografts associated with impaired localization of alloreactive T cells to heart grafts. These findings suggest c-Met as a target for development of organ-selective immunosuppressive therapies.
Original language | English |
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Pages (from-to) | 1087-1099 |
Number of pages | 13 |
Journal | Immunity |
Volume | 42 |
Issue number | 6 |
DOIs | |
Publication status | Published - 16 Jun 2015 |
Bibliographical note
Copyright © 2015 The Authors. Published by Elsevier Inc. All rights reserved.Keywords
- Animals
- Autocrine Communication
- Cell Movement
- Cells, Cultured
- Graft Rejection
- Heart
- Heart Transplantation
- Hepatocyte Growth Factor
- Humans
- Immunologic Memory
- Indoles
- Lymphocyte Activation
- Mice
- Mice, SCID
- Molecular Targeted Therapy
- Proto-Oncogene Proteins c-met
- RNA, Small Interfering
- Receptors, CCR5
- Receptors, Chemokine
- Receptors, Lymphocyte Homing
- Signal Transduction
- Sulfones
- T-Lymphocytes
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Dive into the research topics of 'Hepatocyte Growth Factor Receptor c-Met Instructs T Cell Cardiotropism and Promotes T Cell Migration to the Heart via Autocrine Chemokine Release'. Together they form a unique fingerprint.Projects
- 1 Finished
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Generation of Intrathymic Microenvironments to Establish T-Cell Tolerance
Anderson, G. (Principal Investigator), Jenkinson, E. (Co-Investigator) & Lane, P. (Co-Investigator)
1/10/10 → 30/09/15
Project: Research Councils