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JCI early table of contents for May 15, 2013
Date:5/15/2013

entify signals that direct the immune system to reject a transplanted organ

Organ transplant rejection occurs when the transplant recipient's immune system identifies the transplanted organ as foreign tissue and attacks it. It was previously thought that T cells, the immune cells that mediate rejection, must first be activated by molecules known as chemokines in order to migrate to the transplanted organ. In this issue of the Journal of Clinical Investigation, Fadi Lakkis and colleagues at the University of Pittsburgh used mice to demonstrate that chemokine stimulation of T cells is not required for migration. Instead, these cells must come into contact with immune-stimulating proteins (antigens) that are specifically expressed by the transplanted organ. In an accompanying commentary, Terry Strom discusses how these findings could have important implications for the design of novel anti-rejection therapeutics.

TITLE: Cognate antigen directs CD8+ T cell migration to vascularized transplants

AUTHOR CONTACT:
Fadi G. Lakkis
Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA, USA
Phone: 412 383-5774; Fax: 412-383-9990; E-mail: lakkisf@upmc.edu

View this article at: http://www.jci.org/articles/view/66722?key=5debbc8dd29fc8e22b12

ACCOMPANYING COMMENTARY

TITLE: Transplant rejection and paradigms lost

AUTHOR CONTACT:
Terry Strom
Beth Israel Deaconess Medical Center, Boston, MA, USA
Phone: 1-617-735-2880; Fax: 1 617 667-0923; E-mail: tstrom@bidmc.harvard.edu

View this article at: http://www.jci.org/articles/view/69385?key=ee127335912183bcc713

ALSO IN THI
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Contact: Jillian Hurst
press_releases@the-jci.org
Journal of Clinical Investigation
Source:Eurekalert

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