Proliferation of Nb2 lymphoma cells in vitro in response to interleukin-7.
An attempt was made to investigate the proliferative effect of interleukin-7 (IL-7) on a rat Nb2 T-cell lymphoma line. It was demonstrated that both human and mouse IL-7 stimulated these cells to proliferate in a dose dependent fashion in culture medium containing 10% horse serum. The maximum activities of mIL-7 and hIL-7 were observed at 100 and 1000 units/ml with their half-maximal response of 10 and 50 units/ml, respectively. In a totally serum-free culture condition, mIL-7 produced a similar cellular proliferation, whereas hIL-7 was much less effective. The effectiveness of IL-7 on Nb2 cells was completely abolished by antibody to IL-7, but not by antibody to IL-2. Therefore, Nb2 cells may serve as a simple, convenient and sensitive assay for monitoring the biological activity of IL-7 in vitro. In addition, these cells are also useful for studying the lymphopoiesis of T-cell lineage regulated by IL-7.
Sadeghi
H
H
Agricultural Research Division, American Cyanamid Company, Princeton, NJ 08543-0400.
Wang
B S
BS
D000818:Animals; D016895:Culture Media, Serum-Free; D004306:Dose-Response Relationship, Immunologic; D066298:In Vitro Techniques; D007376:Interleukin-2 / Q000494:pharmacology; D015851:Interleukin-7 / Q000494:pharmacology*; D008213:Lymphocyte Activation / Q000276:immunology*; D016399:Lymphoma, T-Cell / Q000473:pathology*; D051381:Rats
D016895:Culture Media, Serum-Free; D007376:Interleukin-2; D015851:Interleukin-7