Abstract:
BACKGROUND:The ability to induce tolerance, or at least minimize the need for immunosuppressive therapy, is a high priority in organ transplantation. Accomplishing this goal requires a novel method for determining when a patient has become tolerant to or is rejecting their graft. Here, we sought to develop an efficient monitoring protocol based on gene expression profiles of recipient T cells in murine skin and islet allograft models. METHODS:Unlike previous studies, here, gene expression analysis was focused on donor antigen-reactive T cells, which were prepared by collecting CD69(+) T cells from cocultures of recipient peripheral T cells and donor antigen-presenting cells. Candidate tolerance and rejection biomarker genes were selected from a CD69(+) T-cell microarray analysis, and their expression levels were measured in the recipient CD69(+) T-cell fraction using quantitative reverse transcription polymerase chain reaction. RESULTS:Our new monitoring protocol was capable of precisely detecting the immune status of recipients relative to their graft regardless of the organ received, whether they were taking immunosuppressive drugs, or different strains of origin. CONCLUSIONS:Gene expression analysis focusing on recipient CD69(+) T cells as the donor antigen-reactive T-cell population could be used as an effective and sensitive method for monitoring transplant patients.
journal_name
Transplantationjournal_title
Transplantationauthors
Lim DG,Park YH,Kim SE,Jung EJ,Jeong SH,Lee H,Shin SJ,Park CS,Han DJ,Kim SCdoi
10.1097/TP.0b013e3182696a5bsubject
Has Abstractpub_date
2012-10-27 00:00:00pages
802-8issue
8eissn
0041-1337issn
1534-6080journal_volume
94pub_type
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