Abstract:
BACKGROUND:The polymorphic family of killer-cell immunoglobulin-like receptors (KIRs) consists of activating and inhibitory receptors expressed by natural killer (NK) cells and effector T cells that recognize human leukocyte antigen (HLA) class I ligands. It has been suggested that KIR/HLA incompatibility exerts beneficial effects in hematopoietic stem cell transplantation. METHODS:To elucidate whether certain receptor-ligand combinations between recipient KIR and donor HLA antigens lead to enhanced alloreactivity of NK cells associated with acute rejection (aRx) after kidney transplantation, we analyzed the entirety of matches/mismatches between KIR genes and known HLA ligands for aRx patients (n=105) compared to patients with stable renal function (n=119). RESULTS:Whereas HLA-C ligand incompatibility between donor and recipient has no influence on aRx, grafts derived from donors homozygous for HLA-C group 2 alleles seem to demonstrate a better outcome (P=0.052). Additionally, a higher number of inhibitory receptors in the recipient's genotype (P=0.042), a significant higher number of matches for the receptors KIR2DL2/DS2 (P=0.004), as well as a higher number of mismatches for KIR2DL3 (P=0.014) could be observed for patients with stable renal function. CONCLUSION:Our data illustrate that certain KIR/HLA class I ligand combinations between donor and recipient might influence graft short-term outcome after renal transplantation.
journal_name
Transplantationjournal_title
Transplantationauthors
Kunert K,Seiler M,Mashreghi MF,Klippert K,Schönemann C,Neumann K,Pratschke J,Reinke P,Volk HD,Kotsch Kdoi
10.1097/01.tp.0000290681.41859.41subject
Has Abstractpub_date
2007-12-15 00:00:00pages
1527-33issue
11eissn
0041-1337issn
1534-6080pii
00007890-200712150-00020journal_volume
84pub_type
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