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A simple fluorometric assay for quantifying the adhesion of tumour cells to endothelial monolayers
Authors:Elizabeth A. Price  Deirdre R. Coombe  J. Clifford Murray
Affiliation:(1) CRC Academic Department of Clinical Oncology, City Hospital, University of Nottingham Laboratory of Molecular Oncology, Nottingham, UK;(2) Institute for Child Health Research, West Perth, Australia;(3) CRC Academic Dept. of Clinical Oncology, City Hospital, University of Nottingham Lab. of Molecular Oncology, Hucknall Road, Nottingham, NG5 1PB, UK
Abstract:
A static adhesion assay employing 6-carboxy-3prime,6prime-diacetylfluorescein (6-CFDA) as a fluorescent marker has been developed to study the interactions of tumour cell lines with endothelial monolayers. This assay allows simple, safe quantification of cell-cell adhesion using living cells. It has been used to demonstrate that the integrin adhesion molecule VLA-4 mediates the attachment of RPMI-7951 melanoma cells to human umbilical vein endothelial cells (HUVEC) which have been activated by TNFagr. In addition, MDA-MB-231 breast adenocarcinoma cells display greater adhesion to microvessel endothelial cells than to large vessel endothelial cells.
Keywords:adhesion  carcinoma  endothelium  melanoma  metastasis
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