Expression of TGF-ß1, SNAI1 and MMP-9 is associated with lymph node metastasis in papillary thyroid carcinoma.
J Mol Histol
; 45(4): 391-9, 2014 Aug.
Article
em En
| MEDLINE
| ID: mdl-24276590
ABSTRACT
TGF-ß1, SNAI1 and MMP-9 are implicated in tumor invasion and metastasis. The purpose of this study was to examine TGF-ß1, SNAI1 and MMP-9 expression in papillary thyroid carcinoma (PTC), and to assess association of TGF-ß1, SNAI1 and MMP-9 expression with several clinicopathological indicators of PTC. TGF-ß1, SNAI1 and MMP-9 protein expression in 83 PTCs and their matched normal thyroid specimens were analyzed using immunohistochemistry. The mRNA expression levels of TGF-ß1, SNAI1 and MMP-9 in 12 fresh PTC specimens with lymph node metastasis (LNM), 12 fresh PTC specimens without LNM and their matched normal thyroid specimens were assessed by real-time RT-PCR. The results showed that the mRNA and protein expression levels of TGF-ß1, SNAI1 and MMP-9 were significantly higher in PTCs than in their matched normal thyroid tissues. There were not significant differences in TGF-ß1, SNAI1 and MMP-9 protein expression relative to age, gender, tumor size and TNM stage, except for MMP-9 whose protein expression correlated with tumor size. However, high mRNA and protein expression levels of TGF-ß1, SNAI1 and MMP-9 were significantly correlated with LNM. Furthermore, TGF-ß1, SNAI1 and MMP-9 protein expression were significantly correlated with one another. Concomitant expression of any two or all of the three molecules had stronger correlation with LNM than did each alone. Collectively, the present results indicate that immunohistochemical and real-time RT-PCR evaluation of TGF-ß1, SNAI1 and MMP-9 expression in PTC may be useful to predict the risk of LNM in PTC patients.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fatores de Transcrição
/
Neoplasias da Glândula Tireoide
/
Carcinoma
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Biomarcadores Tumorais
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Metaloproteinase 9 da Matriz
/
Fator de Crescimento Transformador beta1
Tipo de estudo:
Prognostic_studies
/
Risk_factors_studies
Limite:
Adolescent
/
Adult
/
Aged
/
Aged80
/
Child
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
J Mol Histol
Assunto da revista:
HISTOCITOQUIMICA
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
China