Abstract:
:Donor-specific transfusion effects were studied in the ACI-to-Lewis rat heterotopic heart allograft model using cyclosporine immunosuppression. Low-dose CsA for 1 week plus a single fresh or stored DST given 1 day before allografting significantly prolonged graft survival over CsA therapy alone (median survival time 23.5 days vs. 10 days, P less than 0.01), but third-party transfusion did not (11.5 vs. 10 days, NS). When CsA was started at the time of DST and continued for 2 weeks, maximal graft enhancement was achieved after just one DST. DST/CsA was equally efficacious if given on any day before transplantation, provided CsA was started on the same day as the transfusion. However, pretransplant DST given without CsA shortened subsequent graft survival of day -1 DST/CsA treatment (14.5 days, n = 6, vs. 60 days for controls, n = 10; P less than 0.01). The addition of methylprednisolone to the DST/CsA protocol had no effect on graft survival (51 vs. 53 days, P = NS), but extending the period of postoperative CsA therapy for 4 weeks at reduced dose (2.5 mg/kg/day) significantly prolonged median survival (111 days, n = 11) and resulted in 45% permanent engraftment (greater than 120 days survival). CsA permits graft enhancement with a single DST as early as 1 day before grafting. This avoids the risk of sensitization from DSTs and can extend DST use to cadaveric graft recipients.
journal_name
Transplantationjournal_title
Transplantationauthors
Brunson ME,Tchervenkov JI,Alexander JWdoi
10.1097/00007890-199109000-00032subject
Has Abstractpub_date
1991-09-01 00:00:00pages
545-9issue
3eissn
0041-1337issn
1534-6080journal_volume
52pub_type
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