Clinical significance of insulin-like growth factor gene polymorphisms with survival in patients with gastrointestinal stromal tumors / 대한외과학회지
Journal of the Korean Surgical Society
; : 288-295, 2012.
Article
de En
| WPRIM
| ID: wpr-111456
Bibliothèque responsable:
WPRO
ABSTRACT
PURPOSE: Insulin-like growth factors (IGFs) regulate a wide range of biological functions including cell proliferation, differentiation, and apoptosis through paracrine and autocrine mechanisms. Accordingly, the present study analyzed polymorphisms of IGF genes and their impact on the prognosis for patients with gastrointestinal stromal tumors (GISTs). METHODS: Two hundred-thirteen consecutive patients with GISTs who underwent curative surgery from 5 medical centers were enrolled in the present study. The genomic DNA was extracted from paraffin-embedded tumor tissue, and four IGF-1 (+2995C/A, +533C/T, IVS2-16540A/G, Ex4-177G/C) and one IGF-2 (IVS1+1280A/G) gene polymorphisms were determined using a Sequenom MassARRAY system. RESULTS: With a median follow-up of 18.4 months, the estimated 5-year relapse-free survival and overall survival rates were 69.9% and 86.7%, respectively. In a multivariate analysis including age, gender, primary site of disease, pathology, and risk stratification, no significant association was observed between the polymorphism of the IGF-1 and IGF-2 genes and survival. CONCLUSION: None of the five IGF-1 and IGF-2 gene polymorphisms investigated in this study was found to be an independent prognostic marker for Korean patients with surgically resected GIST. However, further studies on a larger scale are warranted to clarify the role of IGF-1 and IGF-2 gene polymorphisms as a prognostic biomarker for GIST patients.
Mots clés
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Pronostic
/
ADN
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Somatomédines
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Facteur de croissance IGF-I
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Facteur de croissance IGF-II
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Analyse multifactorielle
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Taux de survie
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Études de suivi
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Apoptose
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Polymorphisme de nucléotide simple
Type d'étude:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limites du sujet:
Humans
langue:
En
Texte intégral:
Journal of the Korean Surgical Society
Année:
2012
Type:
Article