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pubmed:abstractText |
On stimulation with Sarcophaga lectin, the mouse macrophage-like cell line J774.1 secreted a factor like the tumor necrosis factor (TNF) into the culture medium. This factor was a protein with a molecular weight of 40000-45000, and was cytotoxic to L-929 cells, but not to normal embryonic fibroblasts. This factor was effective on both the ascites form and solid form of sarcoma 180 transplanted into ICR mice.
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