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Multi-slice CT contrast-enhanced presentations of advanced gastric cancer: associations with histo-differentiation and expression of p53 and P-glycoprotein / 中华医学杂志(英文版)
Chinese Medical Journal ; (24): 2487-2491, 2008.
Article Dans Anglais | WPRIM | ID: wpr-265909
ABSTRACT
<p><b>BACKGROUND</b>This study aimed to investigate multi-slice CT contrast-enhanced presentation of gastric cancer and its correlation with histo-differentiation and p53 and P-glycoprotein (P-gp) expression.</p><p><b>METHODS</b>Sixty-six patients with gastric cancer in the present study underwent a multi-slice CT preoperative routine and dual-phase contrast-enhanced examination of the upper abdomen; postoperative specimens were used to determine histo-differentiation and the expression of p53 and P-gp. The correlation of multi-slice CT contrast-enhanced presentation with histo-differentiation and expression of p53 and P-gp was analyzed.</p><p><b>RESULTS</b>The dual-phase contrast-enhanced ratio (CER) was not correlated with the histo-differentiation of gastric cancer (P > 0.05). Positive expression of p53 and P-gp was significantly higher in the cases of layered or heterogeneous enhancement than in the cases of homogenous enhancement (P < 0.05). Positive expression of p53 was also correlated with the arterial phase CER, tumor size and lymph node metastasis (P < 0.05), but not with infiltration thickness of the gastric wall, nor was it correlated with the portal phase CER (P > 0.05). Positive expression of P-gp was only correlated with the portal phase CER (P = 0.005).</p><p><b>CONCLUSIONS</b>Differently enhanced pattern and CER of the arterial and portal phase in gastric cancer correlate with its different histo-differentiation and expression of p53 and P-gp respectively. In addition, tumor size and lymph node metastasis of gastric cancer relate to the expression of p53.</p>
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Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) Sujet Principal: Anatomopathologie / Tumeurs de l&apos;estomac / Imagerie diagnostique / Immunohistochimie / Tomodensitométrie / Protéine p53 suppresseur de tumeur / Glycoprotéine P / Métabolisme / Méthodes Type d'étude: Etude diagnostique Limites du sujet: Adulte / Adulte très âgé / Aged80 / Femelle / Humains / Mâle langue: Anglais Texte intégral: Chinese Medical Journal Année: 2008 Type: Article

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Texte intégral: Disponible Indice: WPRIM (Pacifique occidental) Sujet Principal: Anatomopathologie / Tumeurs de l&apos;estomac / Imagerie diagnostique / Immunohistochimie / Tomodensitométrie / Protéine p53 suppresseur de tumeur / Glycoprotéine P / Métabolisme / Méthodes Type d'étude: Etude diagnostique Limites du sujet: Adulte / Adulte très âgé / Aged80 / Femelle / Humains / Mâle langue: Anglais Texte intégral: Chinese Medical Journal Année: 2008 Type: Article