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题目:: Combination effects of distinct cores in 11q13 amplification region on cervical lymph node metastasis of oral squamous cell carcinoma.
作者:: Sugahara(Keisuke),Michikawa(Yuichi),Ishikawa(Kenichi),Shoji(Yoshimi),Iwakawa(Mayumi),Shibahara(Takahiko),Imai(Takashi)
状态:: 发布时间2011-08-01 , 更新时间 2011-08-01
期刊:: Int J Oncol
摘要:: Lymph node metastasis (LNM) in oral squamous cell carcinoma (OSCC) is known to associate with a significant decrease of 5-year survival. Genetic factors related to the difference of the LNM status in the OSCC have been not fully elucidated. Array-based comparative genomic hybridization (CGH) with individual gene-level resolution and real-time quantitative polymerase chain reaction (QPCR) were conducted using primary tumor materials resected from 54 OSCC patients with (n=22) or without (n=32) cervical LNM. Frequent gain was observed at the 11q13 region exclusively in patients with cervical LNM, which was confirmed by real-time QPCR experiments using 11 genes (TPCN2, MYEOV, CCND1, ORAOV1, FGF4, TMEM16A, FADD, PPFIA1, CTTN, SHANK2 and DHCR7) in this region. It was revealed that two distinct amplification cores existed, which were separated by a breakpoint between MYEOV and CCND1 in the 11q13 region. The combination of copy number amplification at CTTN (core 2) and/or TPCN2/MYEOV (core 1), selected from each core, was most significantly associated with cervical LNM (P=0.0035). Two amplification cores at the 11q13 region may have biological impacts on OSCC cells to spread from the primary site to local lymph nodes. Further study of a larger patient series should be conducted to validate these results.
语言:: eng
DOI:: 10.3892/ijo.2011.1094

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