Overexpression of the 67-kD laminin receptor. Correlates with tumour progression in human colorectal carcinoma

G. Sanjuan, PL Fernandez, R Miquel, J Munoz, Castronovo, S Menard, A Palacin, A Cardesa, E Campo

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Resum

The high affinity 67-kD laminin receptor (67LR) is a cell surface protein whose expression is increased in a number of human carcinoma models, To date, 67LR expression in colorectal carcinomas has been examined in a small number of cases. 67LR expression has been immunohistochemically analysed in a large series of human colorectal neoplasms, using the MLuC5 monoclonal antibody, The study included 59 samples of non-neoplastic mucosa, 45 polyps (11 hyperplastic, 34 adenomas), 196 carcinomas, and lymph node metastases of 87 carcinomas, Epithelial cells of normal mucosa and hyperplastic polyps were negative or showed weak positivity in the paranuclear and apical areas of the cytoplasm. In adenomas and carcinomas, the staining was stronger, with a membranous or cytoplasmic pattern. The expression of 67LR correlated significantly with the progression from normal mucosa (22 per cent) to adenoma (44 per cent), carcinoma (61 per cent), and lymph node metastasis (75 per cent) (P

Idioma originalAnglès
Pàgines (de-a)376-380
Nombre de pàgines5
RevistaJ. Pathol.
Volum179
Número4
DOIs
Estat de la publicacióPublicada - d’ag. 1996

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