ANDALIB A, LAWRY J, REES R. SUSCEPTIBILITY OF HUMAN WM MELANOMA CELL LINES TO NK AND LAK CYTOTOXICITY AND THEIR RELEVANCE TO THE LEVEL OF MHC CLASS I AND ICAM-l ANTIGEN EXPRESSION. Med J Islam Repub Iran 2000; 14 (2) :155-160
URL:
http://mjiri.iums.ac.ir/article-1-882-en.html
From Isfahan Medical School, Isfahan, I.R. Iran
Abstract: (3687 Views)
The effect of natural killer (NK) cells and lymphokine activated killer
( LAK) cells was studied on a group of human melanoma cell lines. Peripheral
blood from healthy volunteers was utilized as a fresh source of natural killer
cells and rhI L-2 for producing LAK cells. The cytotoxicity of effector cells
was quantified using a 4 hour SI determining the density of antigen expression on tumor cell surface. The majority
of WM melanoma cell lines were relatively resistant to lysis by NK
cells, but all showed high sensitivity to LAK cytotoxicity. The expression of
MH C class I and I CAM-l on tumor cell lines varied, however using linear
regression analysis between MH C class I and I CAM-l antigen expression,
and UK/ pression of these antigens on the WM melanoma cell lines tested are independent
of NK/