Expression of S100A4 in esophageal squamous cell carcinoma and its relation to tumor invasion and metastasis / 南方医科大学学报
Journal of Southern Medical University
; (12): 1541-1544, 2010.
Article
em Zh
| WPRIM
| ID: wpr-336147
Biblioteca responsável:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To study the role of S100A4 in the carcinogenesis, development, invasion and metastasis of esophageal squamous cell carcinoma.</p><p><b>METHODS</b>Immunohistochemistry was used to detect the expressions of S100A4, MMP-2 and E-cadherin proteins in 100 cases of surgically resected esophageal squamous cell carcinoma specimens. RT-PCR and Western blot were used to detect the expressions of S100A4 mRNA and protein in esophageal squamous cell carcinoma line EC-1 and TE-1. Boyden-chamber model in vitro was utilized to detect the invasion ability of EC-1 and TE-1 cells.</p><p><b>RESULTS</b>The positivity rate of S100A4 protein was 52.0% was in esophageal carcinoma tissues, significantly higher than that in normal tissues (26.0%) (P<0.01). The expression of S100A4 was related to tumor grading, invasive depth and lymph node metastasis (P<0.05). In esophageal carcinoma, the expression of S100A4 was positively correlated to MMP-2 expression (P<0.01), but inversely to E-cadherin expression (P<0.05). The expressions of S100A4 mRNA (0.894-/+0.021) and protein (0.897-/+0.053) in EC-1 cells were significantly higher than those in TE-1 (0.812-/+0.040 and 0.645-/+0.089, respectively, P<0.01), and the invasion ability of EC-1 cells was significantly higher than that of TE-1 cells (91.00-/+17.44 vs 61.80-/+11.10, P<0.01).</p><p><b>CONCLUSION</b>The overexpression of S100A4 in esophageal squamous cell carcinoma tissue and highly invasive EC-1 cells may contribute to the carcinogenesis, development, invasion and metastasis of esophageal squamous cell carcinoma.</p>
Texto completo:
1
Base de dados:
WPRIM
Assunto principal:
Patologia
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Neoplasias Esofágicas
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Carcinoma de Células Escamosas
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Proteínas S100
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Caderinas
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Metaloproteinase 2 da Matriz
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Linhagem Celular Tumoral
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Proteína A4 de Ligação a Cálcio da Família S100
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Metástase Linfática
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Metabolismo
Limite:
Adult
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Aged
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Female
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Humans
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Male
Idioma:
Zh
Revista:
Journal of Southern Medical University
Ano de publicação:
2010
Tipo de documento:
Article