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Natural killer-cell KIR repertoire reconstitution after haploidentical SCT

Stern, M. and de Angelis, C. and Urbani, E. and Mancusi, A. and Aversa, F. and Velardi, A. and Ruggeri, L.. (2010) Natural killer-cell KIR repertoire reconstitution after haploidentical SCT. Bone marrow transplantation, Vol. 45, H. 11. pp. 1607-1610.

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Official URL: http://edoc.unibas.ch/dok/A6003069

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Abstract

We studied killer-cell Ig-like receptor (KIR)/natural killer (NK)-cell group-2-Ag repertoires on donor-derived NK cells in 28 patients after haploidentical SCT in the first 6 months after SCT and correlated results with EFS. The reconstitution hierarchy of potentially alloreactive, single KIR+ NK cells was the following: HLA-C1 binding<HLA-Bw4 binding<HLA-C2 binding. The differences in reconstitution kinetics of the three potentially alloreactive NK cell subsets prompted an updated analysis of EFS in AML patients transplanted from haploidentical donors in our center. This analysis showed that in haploidentical transplantation for AML, HLA-C group 1 mismatching in the graft vs host direction not only provides a survival advantage over non-NK-alloreactive (KIR ligand-matched) transplants (5-year EFS 67±10% vs 17±5%) but, indeed, also provides the best EFS compared with C2 (35±10%) or Bw4 KIR ligand mismatches (44±17%). In conclusion, we show that the kinetics with which single KIR-expressing NK cells are generated after haploidentical SCT differ between individual KIR receptors and seem to influence survival after haploidentical SCT.
Faculties and Departments:03 Faculty of Medicine > Departement Biomedizin > Former Units at DBM > Immunotherapy (Stern)
UniBasel Contributors:Stern, Martin Andreas
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Nature Publishing Group
ISSN:0268-3369
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:21 Jun 2013 12:29
Deposited On:21 Jun 2013 12:22

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