PMID: 6403618May 1, 1983Paper

Production of lymphotoxin, IFN-gamma and IFN-alpha, beta by murine T cell lines and clones

The Journal of Immunology : Official Journal of the American Association of Immunologists
B S ContaN H Ruddle

Abstract

The PCl-6 T cell line, derived from mice sensitized by skin painting with picryl chloride (PCl), shows antigen dependence for DNA synthesis and for lymphotoxin (LT) production. These cells produce LT, but not interferon (IFN), when exposed to 2,4,6-trinitrobenzene sulfonic acid- (TNBS) coupled syngeneic spleen cells. Concanavalin A (Con A) induces IFN production by PCl-6 cells, and IFN levels, but not LT titers, are increased by treatment with 12-O-tetradecanoylphorbol-13-acetate (TPA). These results support the noncoordinate regulation of these two lymphokines. Line 32, a T cell growth factor- (TCGF) dependent T cell line and its Ly-1.2+, 2.2- derivative clone, 32H1, produce both antiviral and antiproliferative activity after exposure to several different mitogens. Tests for acid lability, sensitivity to anti-mouse IFN-alpha, beta antisera, and antiproliferative activity on non-mouse target cells indicates that an Ly-1+ clone, in the absence of both TCGF and accessory cells, can produce at least three separate lymphokine activities after Con A exposure: IFN-gamma (Type II), IFN-alpha, beta (Type I), and LT.

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