Transfer of multiple loci of donor's genes to induce recipient tolerance in organ transplantation.

Abstract:

:Donor organ rejection remains a significant problem. The present study aimed to assess whether transferring a donor's major histocompatibility complex (MHC) genes to the recipient could mitigate rejection in organ transplantation. Seven loci of MHC genes from donor mice were amplified and ligated into vectors; the vectors either contained one K locus, seven loci or were empty (control). The vectors were subsequently injected into the thymus of recipients (in heterotransplants, recipient rats received the vector containing one K locus), following which donor mouse hearts were transplanted. Following the transplantation of allograft and heterograft, electrocardiosignals were viable for a significantly longer duration in recipient mice and rats receiving the donor histocompatibility-2 complex (H-2)d genes compared with those in controls, and in mice that received seven vectors compared with those receiving one vector. Mixed lymphocyte cultures containing cells from these recipients proliferated significantly less compared with mixed lymphocyte cultures containing controls. Also, hearts from H-2d genes-treated recipients demonstrated less lymphocyte infiltration and necrosis compared with the control recipient. The present study concluded that allograft and heterograft rejection may be mitigated by introducing the donor's MHC into the recipient; transferring seven loci has been demonstrated to be more effective than transferring one locus.

journal_name

Exp Ther Med

authors

Li T,Zhang W,Xu Q,Li S,Tong X,Ding J,Li H,Hou S,Xu Z,Jablons DM,You L

doi

10.3892/etm.2018.6058

subject

Has Abstract

pub_date

2018-06-01 00:00:00

pages

4961-4971

issue

6

eissn

1792-0981

issn

1792-1015

pii

ETM-0-0-6058

journal_volume

15

pub_type

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