Cell-mediated immunity to Friend virus-induced leukemia. I. Modification of 125IUdR release cytotoxicity assay for use with suspension target cells.

  • 1 November 1975
    • journal article
    • Vol. 115  (5) , 1351-6
Abstract
Cell-mediated cytotoxic reactivity of C57BL/6 mice against syngeneic FBL-3 cells, a Friend virus-induced leukemia, was measured by the 125IUdR release assay with tumor target cells in suspension. The tests could be performed either with Linbro tissue culture plates(16-mm wells) or with Microtest II plates (6-mm wells). The former could only be harvested manually; the latter could be harvested mechanically by an automatic harvesting apparatus which permitted larger scale tests. With either plate, it was found that careful preparation of the target cells and of the attacker cells has important effects on the results obtained. When performed under optimal test conditions, the 125IUdR assay can be used as a very simple, objective, and reproducible assay for testing cell-mediated cytotoxicity.

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