Donor pre-treatment with tacrolimus reduces transplant vasculopathy

Denis Susa, Sandra van de Engel, Luc C.A. van Damme, Henk P. Roest, Rob Krams, Jan N.M. IJzermans, Ron W.F. de Bruin*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)


We tested whether transplant arteriosclerosis can be reduced by pre-treatment of the donor with immunosuppressive agents, using a rat allogeneic aorta transplantation model. Donor rats received no pre-treatment, or tacrolimus, methylprednisolone, rapamycin, or mycofenolate mofetil (MMF) 16 and 2 h before explantation of the grafts. Eight weeks after transplantation, aorta allografts were harvested. Percent intima area/intima + media area (I/I + M), inflammatory cells and in situ MMP-2 and -9 activity were determined. In pre-transplantation biopsies, MMP-2 and -9 ratio, and mRNA levels for genes of interest were determined. In pre-transplantation biopsies we found no differences in MMP-2/9 ratio, and Bcl-2, Bax, TGF-β, HO-1, p21, and HIF-1α mRNA expression between the groups. Aorta allografts, pre-treated with tacrolimus, showed significantly lower I/I + M ratio compared to untreated controls (p < 0.01). Pre-treatment with methylprednisolone, rapamycin or MMF did not significantly reduce I/I + M ratio. In situ MMP-2/MMP-9 activity was significantly reduced in grafts treated with tacrolimus and rapamycin compared to controls (p < 0.05). Immunohistochemistry revealed a high number of CD4+ cells and high CD4/CD8 ratio in grafts pre-treated with tacrolimus. Donor pre-treatment with tacrolimus significantly reduces transplant arteriosclerosis and is associated with reduced in situ MMP-2/MMP-9 activity and increased number of CD4+ cells.

Original languageEnglish
Pages (from-to)273-278
Number of pages6
JournalPharmacological Research
Issue number4
Publication statusPublished - Apr 2009


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