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首页> 外文期刊>cell and tissue research >Spontaneous neurite outgrowth and vasoactive intestinal peptide-Iike immunoreactivity of cultures of human paraganglioma cells from the glomus jugulare
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Spontaneous neurite outgrowth and vasoactive intestinal peptide-Iike immunoreactivity of cultures of human paraganglioma cells from the glomus jugulare

机译：Spontaneous neurite outgrowth and vasoactive intestinal peptide-Iike immunoreactivity of cultures of human paraganglioma cells from the glomus jugulare

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The chief cells of paraganglionic tissues have morphological and functional similarities to adrenal chromaffin cells, and both cell types are derived from the neural crest. In the present investigation cells from two glomus jugulare paragangliomas were studied in culture. Approximately 50 of the cells from one tumor, and 7 from the other spontaneously formed neurite-like processes. Numerous granular and agranular synaptic-like vesicles also appeared in the process-forming cells. In contrast to findings with normal and neoplastic adrenal chromaffin cells, addition of nerve growth factor (NGF) to the culture medium had no major effects on proportion of cells with processes. Dexamethasone caused only a small decrease in process length. Culturing of the tumors also appeared to promote production of material with VIP-like immunoreactivity. It is concluded that the phenotype of paraganglioma as well as pheochromocytoma cells may be altered in vitro. Responsiveness to specific factors such as NGF or steroids, however, may vary for related tumor cell types in different anatomic locations.

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