Concurrent Wnt pathway component expression in breast and colorectal cancer.
Pathol Res Pract
; 216(7): 153005, 2020 Jul.
Article
en En
| MEDLINE
| ID: mdl-32534708
ABSTRACT
Wnt signaling pathway regulates important cell functions such as proliferation and migration and is frequently deregulated in colorectal and breast cancer. Thus, it constitutes an attractive therapeutic target with many drugs being investigated in clinical trials. Eighty-two breast and 102 colorectal carcinomas were analyzed for relative mRNA expression levels of Wnt pathway components namely Wnt3 ligand, Frizzled 7 receptor and LEF1 transcriptional factor, their concurrent expression patterns and their correlation with clinicopathological features. Regarding breast carcinomas, increased relative mRNA expression levels of WNT3 were found in 54 % of cases whereas decreased relative mRNA expression levels were observed in FZD7 and LEF1 in 82 % and 43 % of cases, respectively. Expression levels of WNT3 were significantly correlated with tumour grade (pâ¯=â¯0.021) in breast cancer. As far as colorectal carcinomas are concerned, increased relative mRNA expression levels of WNT3, FZD7 and LEF1 were found in 60 %, 37 % and 48 % of cases respectively. A statistically significant correlation emerged between LEF1expression levels and pT-category (pâ¯=â¯0.027), suggesting a possible association with tumour aggressiveness in colorectal carcinomas. Statistically significant linear correlations were observed between the expression of WNT3/LEF1 (Râ¯=â¯0.233, pâ¯=â¯0.035) and FZD7/LEF1 (Râ¯=â¯0.359, pâ¯=â¯0.001) in breast carcinomas as well as in colorectal carcinomas (Râ¯=â¯0.536, pâ¯<â¯0.01 and Râ¯=â¯0.210, pâ¯=â¯0.034) respectively. Our results demonstrate a possible clinical significance of Wnt pathway gene expression levels in both tumour types. The distinct expression patterns and simultaneous expression of the investigated genes underscore the complexity of this pathway in breast and colorectal carcinogenesis and highlights the necessity of patient selection with regard to the effectiveness of Wnt pathway inhibitors.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Neoplasias de la Mama
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Neoplasias Colorrectales
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Factor de Unión 1 al Potenciador Linfoide
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Receptores Frizzled
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Proteína Wnt3
Límite:
Adult
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Aged
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Aged80
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Pathol Res Pract
Año:
2020
Tipo del documento:
Article
País de afiliación:
Grecia