Abstract:
:Renal allograft survival is related directly to cell senescence. In the transplantation scenario many cellular events - participating as immunological and non-immunological factors - could contribute to accelerate this biological process, responsible for the ultimate fate of the graft. Mechanisms concerned in tolerance versus rejection are paramount in this outcome. For this reason, immunosuppressive treatment constitutes an extremely important decision to prevent organ dysfunction and, finally, graft loss. This study was conducted to document the proportion of CD4(+) /interleukin (IL)-17A(+) -, CD16(+) /indoleamine 2, 3-dioxygenase (IDO(+) )-, forkhead box protein P3 (FoxP3(+))-expressing cells, senescent cells (p16(INK) (4α)) and the percentage of interstitial fibrosis (IF) in graft biopsies of kidney transplant recipients participating in the BENEFIT (Bristol-Myers Squibb IM103008) study. CD4(+) /IL-17A(+) , CD16(+) /IDO(+), FoxP3(+) and p16(INK) (4α+) cells were evaluated by immunohistochemistry, and the percentage of IF by morphometry on graft biopsies obtained at time 0 (pre-implantation) and at 12 months post-transplant. Senescent cells and CD4(+) /IL-17A(+) cells were increased among graft biopsies in subjects receiving cyclosporin A (CsA) compared to those under belatacept treatment. Meanwhile, CD16(+) /IDO(+) and FoxP3(+) -expressing cells were lower in biopsies from CsA treatment compared to patients treated with Belatacept. Histological morphometric analyses disclosed more IF in 12-month CsA-treated patients in comparison to pre-implantation biopsy findings. Summing up, renal biopsies from patients receiving belatacept showed greater amounts of FoxP3(+) cells and lower amounts of CD4(+) /IL-17A(+) and senescent cells compared to patients under CsA treatment. Along with these findings, an increase in IF in annual CsA-treated-patients biopsies compared to pre-implantation and belatacept-treated patients were observed.
journal_name
Clin Exp Immunoljournal_title
Clinical and experimental immunologyauthors
Furuzawa-Carballeda J,Lima G,Alberú J,Palafox D,Uribe-Uribe N,Morales-Buenrostro LE,Reyes Acevedo R,Mondragón G,Chevaile A,Llorente Ldoi
10.1111/j.1365-2249.2011.04504.xsubject
Has Abstractpub_date
2012-02-01 00:00:00pages
330-7issue
2eissn
0009-9104issn
1365-2249journal_volume
167pub_type
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