Expression of VE-Cadherin in Peritubular Endothelial Cells during Acute Rejection after Human Renal Transplantation.
Genes involved in acute rejection (AR) after organ transplantation remain to be further elucidated. In a previous work we have demonstrated the under-expression of VE-Cadherin by endothelial cells (EC) in AR following murine and human heart transplantation. Serial sections from 15 human kidney Banff-graded transplant biopsies were examined for the presence of VE-Cadherin and CD34 staining by immunohistochemistry (no AR (n = 5), AR grade IA (n = 5), or AR grade IIA (n = 5)). Quantification of peritubular EC staining were evaluated and results were expressed by the percentage of stained cells per surface analysed. There was no difference in CD34 staining between the 3 groups. VE-Cadherin expression was significantly reduced in AR Grade IIA when compared to no AR (P = .01) and to AR grade IA (P = .02). This study demonstrates a reduced VE-Cadherin expression by EC in AR after renal transplantation. The down-regulation of VE-Cadherin may strongly participate in human AR.
Roussoulières
Ana
A
INSERM U331/EA 3740, Faculté de Médecine RTH Laennec, 8 rue Guillaume Paradin, 69003 Lyon, France.
McGregor
Brigitte
B
Chalabreysse
Lara
L
Cerutti
Catherine
C
Garnier
Jeanne-Luce
JL
Boissonnat
Pascale
P
Bastien
Olivier
O
Scoazec
Jean-Yves
JY
Thivolet-Bejui
Françoise
F
Sebbag
Laurent
L
L McGregor
John
J
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