Expression of Cyclooxygenase-2 and Embryonic Lethal Abnormal Vision-Like Protein HuR in Gallbladder Carcinoma
Korean Journal of Pathology
; : 42-47, 2010.
Article
em En
| WPRIM
| ID: wpr-37350
Biblioteca responsável:
WPRO
ABSTRACT
BACKGROUND:
Cyclooxygenase-2 (COX-2) is an enzyme that promotes proliferation of tumor cells. HuR is a member of the family of embryonic lethal abnormal vision-like proteins. Recent studies show that cytoplasmic HuR stabilizes the mRNA of COX-2 and regulates the expression of COX-2. Moreover, cytoplasmic HuR expression is associated with a poorer prognosis for patients with some cancers. The aim of this study was to investigate the expression patterns of and the relationship between COX-2 and HuR in gallbladder carcinoma.METHODS:
We analyzed COX-2 and HuR expression by immunohistochemical staining of 108 gallbladder carcinomas.RESULTS:
COX-2 expression and nuclear and cytoplasmic HuR expression were seen in, respectively, 61 (56.5%), 77 (71.3%), and 4 (3.7%) cases. COX-2 and nuclear HuR were simultaneously expressed in 44 of the 108 samples without any quantitative association between the levels of each. COX-2 expression correlated with tumor stage, differentiation (based on histology), lymph node metastasis, perineural invasion, and survival. Nuclear and cytological expression of HuR did not correlate with any clinical parameters.CONCLUSIONS:
COX-2 expression but not HuR may play an important role in the prognosis of patients with gallbladder carcinoma.Palavras-chave
Texto completo:
1
Índice:
WPRIM
Assunto principal:
Prognóstico
/
RNA Mensageiro
/
Proteínas
/
Citoplasma
/
Ciclo-Oxigenase 2
/
Proteínas ELAV
/
Proteína Semelhante a ELAV 1
/
Vesícula Biliar
/
Neoplasias da Vesícula Biliar
/
Linfonodos
Tipo de estudo:
Prognostic_studies
Limite:
Humans
Idioma:
En
Revista:
Korean Journal of Pathology
Ano de publicação:
2010
Tipo de documento:
Article