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Telomeric rather than centromeric activating KIR genes protect from cytomegalovirus infection after kidney transplantation

Stern, M. and Hadaya, K. and Honger, G. and Martin, P. Y. and Steiger, J. and Hess, C. and Villard, J.. (2011) Telomeric rather than centromeric activating KIR genes protect from cytomegalovirus infection after kidney transplantation. American journal of transplantation, Vol. 11, H. 6. pp. 1302-1307.

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Official URL: http://edoc.unibas.ch/dok/A6005455

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Abstract

Cytomegalovirus (CMV) infection is a common complication after organ transplantation. Previous studies have demonstrated that activating killer-cell immunoglobulin-like receptors (KIR) may reduce the rate of CMV infection. KIR genes can be divided into haplotype A (containing a fixed set of inhibitory receptors) and haplotype B (carrying additional activating KIR genes). The KIR locus is divided into a centromeric and a telomeric portion, both of which may carry A or B haplotype motifs. We studied a cohort of 339 kidney transplant recipients to elucidate which KIR genes protect from CMV infection. CMV infection occurred in 139 patients (41%). Possession of telomeric (hazard ratio 0.64, 95% confidence interval 0.44-0.94, p = 0.02) but not centromeric (HR 0.86, 95% CI 0.60-1.23, p = 0.41) B motifs was associated with statistically significant protection from CMV infection. Due to linkage disequilibrium, we were not able to identify a single protective gene within the telomeric B complex (which may contain the KIR2DS1, KIR3DS1, KIR2DL5A and KIR2DS5 genes). The presence of known or putative ligands to activating KIR did not significantly modify the influence of telomeric B group genes. We confirm that B haplotypes protect from CMV infection after kidney transplantation and show that this arises from telomeric B haplotype genes.
Faculties and Departments:03 Faculty of Medicine > Departement Biomedizin > Department of Biomedicine, University Hospital Basel > Immunobiology (Hess C)
03 Faculty of Medicine > Departement Biomedizin > Former Units at DBM > Immunotherapy (Stern)
03 Faculty of Medicine > Departement Biomedizin > Former Units at DBM > Transplantation Immunology and Nephrology (Palmer/Steiger)
UniBasel Contributors:Steiger, Jürg U. and Stern, Martin Andreas and Hess, Christoph
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Munksgaard
ISSN:1600-6135
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:10 Apr 2015 09:14
Deposited On:06 Dec 2013 09:35

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