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The Biological Characteristics of IL-2 Gene Modified Tumor Cells
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Abstract:
In this experiment, we introduced human interleukin-2(lL-2)gene and Neomycin resistance (Neo~R) gene into a human lung adenocarcinoma cell line GLC, using a retroviral vector PLXSN. The positive cells obtained by selecting in G418 were compared with the wild-type cells. We observed their growth characteristics in vitro and the quantity of IL-2 in the culture supernatants. PCR result demonstrated the integration of foreign genes into tumor genome DNA after transfection and permanent existence. Under electron microscope, what can be seen was the surface villi of trans-duced-cells are less and shorter. It deserves further investigation to determine whether the change of cell surface influence metastatic ability of cells.
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R73－3
