Chemokine decoy receptor D6 mimicking trap (D6MT) prevents allosensitization and immune rejection in murine corneal allograft model

Wungrak Choi, Yu Jeong Byun, Eunae Jung, Hyemi Noh, Amir R. Hajrasouliha, Zahra Sadrai, Eunju Chang, Joon H. Lee, Hyung Keun Lee

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Although corneal allotransplantation is performed in the immune-privileged cornea, many grafts are still rejected after transplantation. This study examined the role of chemokine receptor D6 expression in a corneal allograft rejection, investigated the modulation of D6 expression in cells, and determined the effect of D6 on graft survival. Interestingly, D6 was highly expressed in CD45 cells and the corneal epithelium of accepted corneal allografts. From the mouse corneal allograft model, TGF-b was found to play a key role in D6 up-regulation, leading to reduced CCL2, CCL5, and CCL3. To modulate D6 chemokine binding, a D6MT was developed and showed effective chemokine trapping through SPR and FACS assays. By treating corneal allografts with D6MT, the allograft survival rate was improved, and (lymph) angiogenesis was reduced. Direct allosensitization and DC LN homing was drastically reduced in the mouse corneal allograft model. These findings suggest that TGF-β is a positive regulator of D6 expression, and it is a potential therapeutic target to enhance the survival of corneal allografts.

Original languageEnglish (US)
Pages (from-to)413-424
Number of pages12
JournalJournal of Leukocyte Biology
Volume97
Issue number2
DOIs
StatePublished - Feb 1 2015

    Fingerprint

Keywords

  • Transplantation

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology
  • Cell Biology

Cite this