Identification of putative target genes for amplification within 11q13.2 and 3q27.1 in esophageal squamous cell carcinoma.
Clin Transl Oncol
; 16(7): 606-15, 2014 Jul.
Article
en En
| MEDLINE
| ID: mdl-24203761
BACKGROUND: Genomic aberration is a common feature of human cancers and also is one of the basic mechanisms that lead to overexpression of oncogenes and underexpression of tumor suppressor genes. Our study aims to identify frequent genomic changes and candidate copy number driving genes in esophageal squamous cell carcinoma (ESCC). METHODS: We used array comparative genomic hybridization to identify recurrent genomic alterations and screened the candidate targets of selected amplification regions by quantitative and semi-quantitative RT-PCR. RESULTS: Thirty-four gains and 16 losses occurred in more than 50 % of ESCCs. High-level amplifications at 7p11.2, 8p12, 8q24.21, 11q13.2-q13.3, 12p11.21, 12q12 and homozygous deletions at 2q22.1, 8p23.1-p21.2, 9p21.3 and 14q11.2 were also identified. 11q13.2 was a frequent amplification region, in which five genes including CHKA, GAL, KIAA1394, LRP5 and PTPRCAP were overexpressed in tumor tissues than paracancerous normal tissues. The expression of ALG3 at 3q27.1 was higher in ESCCs, especially in patients with lymph node metastasis. CONCLUSIONS: Target gene identification of amplifications or homozygous deletions will help to reveal the mechanism of tumor formation and explore new therapy method.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Cromosomas Humanos Par 3
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Cromosomas Humanos Par 11
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Neoplasias Esofágicas
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Carcinoma de Células Escamosas
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Amplificación de Genes
Tipo de estudio:
Diagnostic_studies
Límite:
Adult
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Aged
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Aged80
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Clin Transl Oncol
Año:
2014
Tipo del documento:
Article
País de afiliación:
China
Pais de publicación:
Italia