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Three human breast cancer cell lines ZR-75-1, MDA-MB-436 and MCF-7 were found to contain respectively, 3.06, 2.69 and 1.86 fmol of somatostatin-like immunoreactivity (SLI) per 10(6) cells. Since SLI is undetectable in the passaging media it must, therefore, be synthesised by the cells. In the presence of fetal calf serum the cells were growth inhibited by(More)
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