Expression of natural killer (NK) cell-specific alloantigens on a mouse NK-like cell line.
As part of the strategy for screening for natural killer (NK) cell-specific monoclonal antibodies (MoAb) we have raised a number of murine NK-like cell lines in media containing interleukin-2 (IL-2). The detection of specific NK cell alloantigens on a C57BL/6 cell line in long-term culture in IL-2 is the subject of this paper. The C57BL/6 cell line has the morphology of large granular lymphocytes (LGL) and exhibits strong cytolytic activity against the archetype NK cell target, YAC-1. Absorption of three anti-NK antiserum, NZB anti-BALB/c (anti-NK-2.1), BALB/c anti-DBA/2 (anti-NK-3.1) and CE anti-CBA (anti-NK-4.1), with the C57BL/6 cell line removed the anti-NK activity from these antisera. Flow cytometric studies of the C57BL/6 cell line demonstrated significant binding of the anti-NK-1.1 MoAb produced by hybridoma PK136. Our results suggest that the C57BL/6 NK-like cell line exhibits some of the properties of naive NK cells and expresses all the known NK cell-specific alloantigens, NK-1.1, NK-2.1, NK-3.1 and NK-4.1 and therefore is potentially useful in selecting NK specific hybridomas and in studying the biology of NK cells.
Smart
Y C
YC
Discipline of Surgical Science, Faculty of Medicine, University of Newcastle, NSW, Australia.
Stevenson
K L
KL
Thorne
R F
RF
Thomas
W D
WD
Hsu
L H
LH
Burton
R C
RC
D000818:Animals; D000911:Antibodies, Monoclonal / Q000276:immunology; D002460:Cell Line; D004306:Dose-Response Relationship, Immunologic; D005434:Flow Cytometry; D007519:Isoantigens / Q000096:biosynthesis* / Q000276:immunology; D007694:Killer Cells, Natural / Q000276:immunology*; D051379:Mice; D008807:Mice, Inbred BALB C
D000911:Antibodies, Monoclonal; D007519:Isoantigens