Clinical significance of insulin-like growth factor-1 receptor expression in stage I non-small-cell lung cancer: immunohistochemical analysis
The Korean Journal of Internal Medicine
; : 116-120, 2008.
Article
em En
| WPRIM
| ID: wpr-181618
Biblioteca responsável:
WPRO
ABSTRACT
BACKGROUND/AIMS: The insulin-like growth factor (IGF) system has been implicated in tumor growth, invasion, and metastasis. However, reports on the IGF-1 receptor (IGF-1R) based on radioimmunoassays are conflicting, and its prognostic implications in non-small-cell lung cancer (NSCLC) are still controversial. METHODS: Seventy-one paraffin-embedded tissue sections from stage I NSCLC patients were stained using a mouse monoclonal antibody against human IGF-1R. RESULTS: The intensity and frequency of IGF-1R expression on the membrane and cytoplasm of cancer cells was evaluated and scored using a semiquantitative system. IGF-1R expression was detected in nine of 71 (12.7%) cases. No significant relationship was found between clinical/histopathological parameters and IGF-1R expression. None of the patients whose tumor expressed IGF-1R had experienced distant metastasis or cancer-related death, although the difference did not reach statistical significance. CONCLUSIONS: We conclude that IGF-1R expression may not be a major prognostic factor for stage I NSCLC.
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Texto completo:
1
Índice:
WPRIM
Assunto principal:
Prognóstico
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Fator de Crescimento Insulin-Like I
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Imuno-Histoquímica
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Receptor IGF Tipo 1
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Carcinoma Pulmonar de Células não Pequenas
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Metástase Neoplásica
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Estadiamento de Neoplasias
Tipo de estudo:
Prognostic_studies
Limite:
Aged80
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Animals
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Female
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Humans
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Male
Idioma:
En
Revista:
The Korean Journal of Internal Medicine
Ano de publicação:
2008
Tipo de documento:
Article