Novel monoclonal antibodies against membrane structures that are preferentially expressed on IL-2-activated rat NK cells

Katinka M. Giezeman-Smits, Liesbeth E. Jonges, William H. Chambers, Cynthia S. Brisette-Storkus, Ronald L.P. Van Vlierberghe, Jaap D.H. Van Eendenburg, Alexander M.M. Eggermont, Gert Jan Fleuren, Peter J.K. Kuppen

Onderzoeksoutput: Bijdrage aan tijdschriftArtikelpeer review

10 Citaten (Scopus)

Samenvatting

Interleukin-2 (IL-2)-activated natural killer (NK) cells are known to mediate specific functions such as cytolytic activity and tumor infiltration more efficiently than nonactivated NK cells. To investigate whether these characteristics are associated with induction or up-regulation of expression of membrane structures after IL-2 activation, we selected four hybridomas (mAbs ANK44, ANK66, ANK7, and ANK123) derived from mice immunized with rat IL-2-activated NK cells and compared the expression of the epitopes recognized on IL-2-activated NK cells versus unstimulated NK cells. We found that ANK44-expression was induced after activation with IL-2. The antigens recognized by ANK66, ANK7, and ANK123 were expressed selectively on subsets of nonactivated NK cells. After activation with IL-2 the level of expression of these antigens was increased. Moreover, the majority of NK cells then expressed these antigens after IL-2 activation. Biochemical characterization of the membrane structures recognized on IL-2-activated NK cells showed that they have not previously been described. The precise function of these membrane structures is not yet known, however, the selective nature of their expression implies their involvement in the specific functions.

Originele taal-2Engels
Pagina's (van-tot)209-215
Aantal pagina's7
TijdschriftJournal of Leukocyte Biology
Volume63
Nummer van het tijdschrift2
DOI's
StatusGepubliceerd - feb. 1998
Extern gepubliceerdJa

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