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Cell‐mediated cell lysis in vitro : genetic control of killer cell production and target specificities in the mouse

Cell‐mediated cell lysis in vitro : genetic control of killer cell production and target... The requirements for killer cell production in the course of a mixed leukocyte reaction and the specificity of target cell (PHA‐blasts) lysis in the mouse were investigated using inbred strains carrying intra‐H‐2 recombinant chromosomes. Strong lytic activity was generated in all, and only those, responder‐stimulator combinations which differed at either the H‐2D or the H‐2K, or both regions, even if the MLR incompatibility between responder and stimulator was very weak. Killing activity was specific and directed against determinants controlled by genes in the H‐2K and H‐2D regions. The slope of the killer dose‐response curves is the same for either type of specificity. Quantitative comparison of the lytic activity of a given killer cell population on different targets demonstrated a dose effect of the number of specificities recognized. No significant killing against the Ir or the Ss‐Slp regions of the H‐2 complex could be detected. AntiH2 sera, if directed against the killer cells, do not inhibit their activity, while they can block killing, if directed against the target. This inhibition is specific in that a serum that blocks killing against the H‐2K specificity of a given target does not inhibit the lytic activity directed against the H‐2D determinants on the same target. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png European Journal of Immunology Wiley

Cell‐mediated cell lysis in vitro : genetic control of killer cell production and target specificities in the mouse

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References (29)

Publisher
Wiley
Copyright
Copyright © 1974 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN
0014-2980
eISSN
1521-4141
DOI
10.1002/eji.1830040514
pmid
4277395
Publisher site
See Article on Publisher Site

Abstract

The requirements for killer cell production in the course of a mixed leukocyte reaction and the specificity of target cell (PHA‐blasts) lysis in the mouse were investigated using inbred strains carrying intra‐H‐2 recombinant chromosomes. Strong lytic activity was generated in all, and only those, responder‐stimulator combinations which differed at either the H‐2D or the H‐2K, or both regions, even if the MLR incompatibility between responder and stimulator was very weak. Killing activity was specific and directed against determinants controlled by genes in the H‐2K and H‐2D regions. The slope of the killer dose‐response curves is the same for either type of specificity. Quantitative comparison of the lytic activity of a given killer cell population on different targets demonstrated a dose effect of the number of specificities recognized. No significant killing against the Ir or the Ss‐Slp regions of the H‐2 complex could be detected. AntiH2 sera, if directed against the killer cells, do not inhibit their activity, while they can block killing, if directed against the target. This inhibition is specific in that a serum that blocks killing against the H‐2K specificity of a given target does not inhibit the lytic activity directed against the H‐2D determinants on the same target.

Journal

European Journal of ImmunologyWiley

Published: May 1, 1974

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