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Inductive effect of recombinant human interleukin-1 α and β on differentiation of macrophage-like tumor cell line P388D1

✍ Scribed by Shigemasa Hanazawa; Chika Hanaizumi; Shigeru Amano; Kimiharu Hirose; Yoshihiro Ohmori; Masayoshi Kumegawa; Kohichi Yamaura; Shigeo Kitano


Publisher
John Wiley and Sons
Year
1988
Tongue
English
Weight
434 KB
Volume
136
Category
Article
ISSN
0021-9541

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✦ Synopsis


We used the mouse monocyteimacrophage-like tumor cell line P388D1 to test whether or not interleukin-1 (IL-1) stimulates differentiation of monocyte/ macrophage progenitors. Incubation of these cells with recombinant human interleukin-1 (rhlL-1) a and p resulted in their increased adherence, stimulation of nonspecific esterase activity, and increased Fc rosette formation. rhlL-1 s inhibited cell growth and stimulated Fc rosette formation in a dose-dependent fashion. The cell growth inhibition due to rhlL-1s depended on the concentration of serum in culture medium. Synergism between rhlL-1 and calcium ionophore A231 87 was found for the cell growth inhibition and Fc rosette formation. The presence of ethylene glycol bis-(P-aminoethyl ether) N,N,N,N-tetraacetic acid(EGTA) in the medium abolished the stimulatory effect of rhlL-1 on Fc rosette formation of the cell line. These results demonstrate that rhlL-1s are a potent inducer of the differentiation of the macrophage-like tumor cell fine P388D1.


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