Expression of AIF and caspase-3 in colorectal carcinoma, adenoma, and normal mucosa and its correlation / 中华胃肠外科杂志
Chinese Journal of Gastrointestinal Surgery
;
(12): 391-394, 2009.
Artigo
em Chinês
| WPRIM
| ID: wpr-326490
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the expression differences of apoptosis-inducing factor (AIF) and caspase-3 among colorectal carcinoma, adenoma and normal mucosa, and to identify the relationship between AIF and caspase-3 expression in colorectal adenoma-carcinoma sequence.</p><p><b>METHODS</b>Formalin-fixed paraffin embedded colorectal tissues from 174 cases, including 84 adenomas, 72 carcinomas, and 18 normal mucosa, were examined for expression of AIF and caspase-3 by streptavidin-peroxidase (SP) immunohistochemistry.</p><p><b>RESULTS</b>The positive rates of AIF and caspase-3 in colorectal adenoma were higher than those in normal mucosa (P <0.05). The positive rate of AIF in adenoma showed no significant difference compared to colorectal carcinoma (P >0.05). However, caspase-3 expression in adenomas was significantly higher than that in carcinoma (P <0.05). The positive rate of AIF in tubular adenoma was significantly higher than that in villous adenoma (P <0.05), while the positive expression rate of caspase-3 in the two types of adenoma showed no significant difference (P >0.05). AIF expression had no prominent correlation with the caspase-3 expression (P >0.05).</p><p><b>CONCLUSIONS</b>The dysregulation of caspase-independent pathway of apoptosis may be an early event in the development of colorectal carcinogenesis, while the dysregulation of the caspase-dependent pathway of apoptosis may be one of contributing factors of colorectal carcinogenesis. The caspase-independent pathway of apoptosis and the caspase-dependent pathway of apoptosis are two relatively independent pathways in colorectal carcinogenesis.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Patologia
/
Neoplasias Colorretais
/
Adenoma
/
Fator de Indução de Apoptose
/
Caspase 3
/
Mucosa Intestinal
/
Metabolismo
Tipo de estudo:
Estudo prognóstico
Limite:
Adulto
/
Idoso
/
Feminino
/
Humanos
Idioma:
Chinês
Revista:
Chinese Journal of Gastrointestinal Surgery
Ano de publicação:
2009
Tipo de documento:
Artigo
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