Clonal analysis of insulin and somatostatin secretion and L-dopa decarboxylase expression by a rat islet cell tumor.


A cell line, RIN-m, established from a transplantable rat islet cell tumor secretes insulin (IRI) and somatostatin (SRIF) and expresses high levels of the key amine precursor uptake and decarboxylation (APUD) cell enzyme L-dopa-decarboxylase (DDC). Conditioned medium from a rat pituitary tumor line GH3, secreting GH and PRL, improved the cloning efficiency… (More)


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