Abstract:
BACKGROUND:Nonspecific inflammatory damages occurring prior to organ transplantation reduce long-term graft survival. Here, we tested the beneficial effects of carbon monoxide (CO) induction by methylene chloride (MC). METHODS:Fischer-344 (F-344 Rat) or Dark Agouti (DA Rat) donor animals were either treated with MC four hours prior to organ removal or remained untreated. Kidneys were transplanted into Lewis (LEW) recipients. The low responder strain combination (F-344-->LEW) was studied for long-term graft changes. Dendritic cells (DCs) migration and early changes were followed in additional groups of a high responding donor/recipient strain combination (DA-->LEW). Native kidneys of uninephrectomized, age-matched normal animals served as controls. RESULTS:Following MC application COHb peaked within two hours in donor animals. Renal function and morphology improved significantly in renal allografts of CO induced donor animals and were comparable to native controls long-term (24 wks). Early after transplantation (24 hr) donor-derived DCs, CD4+ T-cells and alloreactive T-cells were significantly reduced following the engraftment of organs from treated donors. In addition, a trend towards a Th1/Th2 shift and a significant intragraft reduction of CD3 mRNA expression was observed. CONCLUSION:Donor treatment for the induction of CO reduced graft immunogenicity and inhibited chronic allograft nephropathy.
journal_name
Transplantationjournal_title
Transplantationauthors
Martins PN,Reutzel-Selke A,Jurisch A,Denecke C,Attrot K,Pascher A,Kotsch K,Pratschke J,Neuhaus P,Volk HD,Tullius SGdoi
10.1097/01.tp.0000232716.91887.c5subject
Has Abstractpub_date
2006-10-15 00:00:00pages
938-44issue
7eissn
0041-1337issn
1534-6080pii
00007890-200610150-00014journal_volume
82pub_type
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