Prognostic significance of bcl-2 and p53 expression in colorectal carcinoma / 浙江大学学报(英文版)(B辑:生物医学和生物技术)
Journal of Zhejiang University. Science. B
;
(12): 1163-1169, 2005.
Article
Dans Anglais
| WPRIM
| ID: wpr-263244
ABSTRACT
<p><b>OBJECTIVE</b>This study was designed to detect the expression of bcl-2 and p53 proteins in colorectal carcinomas and to determine their association with the patient survival and stage of the diseases.</p><p><b>METHODS</b>Immunohistochemistry method was used to detect the expression of bcl-2 and p53 proteins in 93 cases of colorectal carcinoma. The stain results were obtained by analyzing the clinic-pathological characteristics of patients.</p><p><b>RESULTS</b>Fifty-seven percent (53/93) of the colorectal carcinomas were bcl-2 protein positive. The positive rate of bcl-2 protein in lymph node involvement cases was lower (15/37) than the cases without node involvement (38/58, P<0.01). The positive rate of p53 protein was 43% (40/93) in colon-rectum carcinomas. No significant correlation was observed between p53 protein expression and clinic-pathological manifestations (P>0.05) but the survival was significantly worse (P=0.0001) in the p53 protein positive cases. Neither bcl-2 nor p53 alone was correlated with stage of the disease. When combined bcl-2/p53 status was analyzed, a group with bcl-2(+) and p53(-) had the best prognosis. This group was significantly associated with earlier Dukes' stages (P=0.1763). In multivariate Cox regression analysis, lymph node involvement and p53 protein expression were two independent factors correlated with survival time.</p><p><b>CONCLUSION</b>The expression of bcl-2 and p53 represent biological characteristics of colorectal carcinomas. Assessment of both bcl-2 and p53 status may be valuable in predicting the prognosis of patients.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Pronostic
/
Tumeurs colorectales
/
Marqueurs biologiques tumoraux
/
Analyse de survie
/
Chine
/
Épidémiologie
/
Prévalence
/
Taux de survie
/
Facteurs de risque
/
Mortalité
Type d'étude:
Etude diagnostique
/
Etude d'étiologie
/
Étude de prévalence
/
Étude pronostique
/
Facteurs de risque
Limites du sujet:
Femelle
/
Humains
/
Mâle
Pays comme sujet:
Asie
langue:
Anglais
Texte intégral:
Journal of Zhejiang University. Science. B
Année:
2005
Type:
Article
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