IL-2-driven regulation of NK cell receptors with regard to the distribution of CD16+ and CD16- subpopulations and in vivo influence after haploidentical NK cell infusion

Huenecke, Sabine and Zimmermann, Stefanie Yvonne and Kloess, Stephan and Esser, Ruth and Brinkmann, Andrea and Tramsen, Lars and Koenig, Melanie and Erben, Stephanie and Seidl, Christian and Tonn, Torsten and Eggert, Angelika and Schramm, Alexander and Bader, Peter and Klingebiel, Thomas and Lehrnbecher, Thomas and Passweg, Jakob Robert and Soerensen, Jan and Schwabe, Dirk and Koehl, Ulrike. (2010) IL-2-driven regulation of NK cell receptors with regard to the distribution of CD16+ and CD16- subpopulations and in vivo influence after haploidentical NK cell infusion. Journal of immunotherapy, Vol. 33, H. 2. pp. 200-210.

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Official URL: http://edoc.unibas.ch/dok/A6006509

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To characterize natural killer (NK) cell subpopulations during activation, we analyzed the NK cell receptor repertoire and functionality of purified clinical scale CD56CD3 donor NK cells during stimulation with 1000 U/mL interleukin (IL)-2 for up to 14 days. In a phase I/II trial, we investigated the efficacy and feasibility of nonidentical NK cell infusion in patients with neuroblastoma after haploidentical stem cell transplantation. After IL-2 stimulation, large differences in the distribution of CD16 and CD16 subpopulations were found in 12 donors. Thereby, surface expression for all natural cytotoxicity receptors (NCRs) and NKG2D increased. In addition, killer cell immunoglobulin-like receptor (KIR) NK cells were overgrown by KIR proportion and the homing receptor CD62L was lost during stimulation. NK cell cytotoxicity against K562 and neuroblastoma cells increased and significantly higher cytokine secretion (eg, interferon-gamma, tumor necrosis factor-beta, macrophage inflammatory protein-1alpha, macrophage inflammatory protein-1beta) was observed after IL-2 stimulation compared with freshly isolated NK cells. However, NK cells of donors showing an initially enhanced cytotoxicity combined with NCR and CD69 expression, seemed to be exhausted and did not favor a stimulation period over 9 days. When IL-2-stimulated NK cells were given to transplant recipients, they induced a decrease of peripheral blood NK, in particular of CD56-NK cells. Our data indicate that IL-2 stimulation increases the expression of activating receptors and emphasizes mechanisms beside KIR/human leukocyte antigen. Furthermore, the results suggest that the expansion period of purified NK cells has to be individualized to optimize NK cell immunotherapy.
Faculties and Departments:03 Faculty of Medicine > Bereich Medizinische Fächer (Klinik) > Hämatologie > Hämatologie (Passweg)
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Medizinische Fächer (Klinik) > Hämatologie > Hämatologie (Passweg)
UniBasel Contributors:Passweg, Jakob R.
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Lippincott Williams & Wilkins
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:24 May 2013 09:23
Deposited On:24 May 2013 09:14

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