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Chinese Journal of Experimental and Clinical Virology ; (6): 452-454, 2008.
Artículo en Chino | WPRIM | ID: wpr-332469

RESUMEN

<p><b>OBJECTIVE</b>To investigate the expression of vasoactive intestinal peptide (VIP) in gastric adenocarcinoma, and to evaluate the correlation of VIP level with clinical pathologic parameters.</p><p><b>METHODS</b>The level of VIP in sera from gastric adenocarcinoma patients and healthy people was investigated by ELISA. Moreover, the differential gene expression between gastric adenocarcinoma, gastric dysplasia, and the corresponding normal gastric mucosa were determined by RT-PCR. Western Blot was also used to measure the expression of VIP in the gastric adenocarcinoma and the normal gastric mucosa.</p><p><b>RESULTS</b>The serum level of VIP was (5.794 +/- 0.014) ng/ ml in normal control and was (14.437 +/- 0.825) ng/ml in gastric adenocarcinoma patients, showing significant difference (P < 0.05). Meanwhile,the V/B of gastric adenocarcinoma tissues was greater than that of gastric dysplasia and the corresponding normal gastric mucosa (P <0.01), the values of V/B were 1.5261 +/- 0.3028, 0.9334 +/- 0.2872,and 0.9051 +/- 0.2794, respectively. The values of V/B between normal gastric mucosa and gastric dysplasia were not different significantly (P > 0.05). There were significantly negative correlation between the VIP mRNA expression of the differentiation degree of tumor (P < 0.05). The VIP mRNA expression was higher in gastric adenocarcinoma with lymph node metastasis than that without lymph node matastsis (P < 0.05). The VIP protein expression of the gastric adenocarcinoma tissues was greater than that of normal control.</p><p><b>CONCLUSION</b>This findings provide a direct evidence to support the possibility that VIP play a cofactor role in the pathogenesis of gastric adenocarcinoma.</p>


Asunto(s)
Humanos , Adenocarcinoma , Sangre , Genética , Mucosa Gástrica , Metabolismo , Expresión Génica , ARN Mensajero , Metabolismo , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Neoplasias Gástricas , Sangre , Genética , Péptido Intestinal Vasoactivo , Sangre , Genética
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