Abstract
The hypothesis that blocking of cytotoxic T lymphocyte (CTL)-mediated cytolysis with anti-Lyt-2 antibodies acts at the level of inhibiting the interaction of the Lyt-2-bearing structure with H-2 class I molecules was tested. In agreement with the findings of others, purified anti-Lyt-2.2 inhibited both antigen-specific lysis and lectin-dependent cellular cytotoxicity (LDCC). LDCC of H-2-positive and H-2-negative target cells was similarly inhibited by this antibody. As expected, this effect was specific for CTL expressing the Lyt-2.2 allele, in contrast to blocking with a rat monoclonal antibody to the murine LFA-1 antigen. The implications of this finding for the function of the Lyt-2 antigen in CTL-target cell interaction are discussed.
MeSH Terms
Animals
Antibodies, Monoclonal/physiology
Antigens, Surface/immunology
Binding, Competitive
Cytotoxicity, Immunologic
H-2 Antigens/immunology
Isoantibodies/physiology
Lectins/pharmacology
Lymphocyte Activation
Lymphocyte Function-Associated Antigen-1
Mice
Mice, Inbred BALB C
T-Lymphocytes, Cytotoxic/immunology
Chemicals
Antibodies, Monoclonal
Antigens, Surface
H-2 Antigens
Isoantibodies
Lectins
Lymphocyte Function-Associated Antigen-1
Lyt antibodies
Authors & Affiliations
1 authors, click to expand affiliations / ORCID
Hünig T
References (20)
20 references, click to expand
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