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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Jpn+J+Cancer+Res
1991 ; 82
(4
): 448-55
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T cell receptor-independent cell-mediated cytotoxicity by nude mouse
lymphokine-activated killer cells
#MMPMID1904424
Nishimura T
; Togashi Y
; Wakamiya N
; Hashimoto Y
; Yagita H
; Okumura K
; Habu S
Jpn J Cancer Res
1991[Apr]; 82
(4
): 448-55
PMID1904424
show ga
Lymphokine-activated killer (LAK) cells, which can lyse a variety of tumor cells,
can be induced from both normal and athymic nude mouse spleen cells by culture
with high doses of recombinant interleukin 2 (rIL-2). LAK cells generated from
nude mouse spleen cells (Nude-LAK cells) express just Thy 1.2 antigen, but not
CD4 and CD8 antigens. Nude-LAK cells express neither T3 molecule, T cell receptor
(TCR) alpha beta nor TCR gamma delta on their cell surface. The lack of TCR
expression on Nude-LAK cells was confirmed by the results of northern blot
analysis. LAK cells generated from normal mouse spleen cells (Nor-LAK) express
TCR alpha, beta transcripts, while Nude-LAK cells express only sterile TCR beta
transcript, but not TCR alpha transcript. TCR gamma delta transcripts were
scarcely detected in both Nor-LAK cells and Nude-LAK cells. Thus, it is strongly
suggested that Nude-LAK cells can recognize and lyse tumor cells by
TCR-independent mechanisms. Monoclonal antibody against lymphocyte
function-associated antigen (LFA-1) molecule can block the cytotoxicity of
Nude-LAK cells, indicating an important role of such accessory molecules in
Nude-LAK cell-mediated cytotoxicity.