Ribosomal protein L7a gene is up-regulated but not fused to the tyrosine kinase receptor as chimeric trk oncogene in human colorectal carcinoma.
Int J Oncol
; 16(4): 757-62, 2000 Apr.
Article
em En
| MEDLINE
| ID: mdl-10717245
ABSTRACT
Ribosomal protein L7a (rp L7a) was identified in a subtractive hybridization screen as a gene up-regulated in human colorectal cancer. Expression of rp L7a was greater than 2-fold higher in tumors compared to adjacent normal mucosa in 72% of the patients studied (n=36). rp L7a was also up-regulated in concomitant polyps. The number of patients with rp L7a T/N ratio of >2 was significantly higher in the female (16/18) than in the male (10/18). rp L7a expression was also significantly higher in females with lymph node involvement compared to males. These results indicate that rp L7a expression is related to tumor growth in colorectal cancer especially in females, where it may also be related to tumor spread. There was no correlation of rp L7a expression with tumor cell differentiation. We also show that rp L7a does not exist as a fusion oncogene (trk-2h) in colorectal cancer.
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Bases de dados:
MEDLINE
Assunto principal:
Oncogenes
/
Proteínas Ribossômicas
/
Neoplasias Colorretais
/
Regulação Neoplásica da Expressão Gênica
/
Receptores Proteína Tirosina Quinases
/
Receptor trkA
Limite:
Female
/
Humans
/
Male
Idioma:
En
Revista:
Int J Oncol
Assunto da revista:
NEOPLASIAS
Ano de publicação:
2000
Tipo de documento:
Article