Abstract:
:It has been extensively documented the role of the indirect pathway of allorecognition in allograft rejection. However, recent data demonstrate that the manipulation of this pathway could be also sufficient to promote prolongation of allograft survival. In the present study we evaluated the effect of preoperative immunization with the WF-specific MHC class II peptides RT1.D2 and RT1.B2 in combination with low-dose CsA from days 0 to 7 (5 mg/kg/day) and from days 8 to 30 (1 mg/kg/day) after WF small bowel transplantation. Seven days before and on the day of transplantation, LEW recipients were immunized with the two WF MHC class II peptides RT1.B2 and RT1.D2. The CsA monotherapy induced an allograft survival of 49.3 +/- 6.1 days. MHC class II peptide immunization had a limited effect on allograft survival for RT1.D2 (47.1 +/- 3.8 days) and induced prolongation of allograft survival for RT1.B2 (73.6 +/- 34.6 days). This effect seems to be based on the absence or silence of RT1.B2-reactive T cells and rejection seems to be correlated with the presence of RT1.B2-specific T cells in the late phase. Therefore, the combination of RT1.B2 with low-dose CsA shifts the immunological response and protects small bowel allograft rejection.
journal_name
Hum Immunoljournal_title
Human immunologyauthors
Otto C,Gasser M,Waaga-Gasser AM,Rohde AC,Lenhard M,Jost S,Gassel HJ,Ulrichs K,Timmermann Wdoi
10.1016/s0198-8859(02)00451-2subject
Has Abstractpub_date
2002-10-01 00:00:00pages
880-7issue
10eissn
0198-8859issn
1879-1166pii
S0198885902004512journal_volume
63pub_type
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