A few nicely grouped human dermal microvascular endothelial cells (HMEC) viewed by confocal microscopy at 60× magnification. In these cells, as well as in human breast cancer derived endothelial cells, the presence of oxytocin receptors all over the cell surface has been demonstrated by immunofluorescence using a specific monoclonal antibody directed against the oxytocin binding sites. For details, see the article by Cassoni et al. on page 351.

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