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KMID : 0914820160160010021
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Journal of the Korean Gastric Cancer Association
2016 Volume.16 No. 1 p.21 ~ p.27
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Prognostic and Clinicopathological Significance of Transducer-Like Enhancer of Split 1 Expression in Gastric Cancer
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Lee Ji-Hye
Son Myoung-Won
Kim Kyung-Ju
Oh Mee-Hye
Cho Hyun-Deuk
Lee Hyun-Ju
Jang Si-Hyong
Lee Moon-Soo
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Abstract
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Purpose: Transducer-like enhancer of split 1 (TLE1) is a member of the Groucho/TLE family of transcriptional co-repressors that regulate the transcriptional activity of numerous genes. TLE1 is involved in the tumorigenesis of various tumors. We investigated the prognostic significance of TLE1 expression and its association with clinicopathological parameters in gastric cancer (GC) patients.
Materials and Methods: Immunohistochemical analysis of six tissue microarrays was performed to examine TLE1 expression using 291 surgically resected GC specimens from the Soonchunhyang University Cheonan Hospital between July 2006 and December 2009.
Results: In the non-neoplastic gastric mucosa, TLE1 expression was negative. In GC, 121 patients (41.6%) were positive for TLE1. The expression of TLE1 was significantly associated with male gender (P=0.021), less frequent lymphatic (P=0.017) or perineural invasion (P=0.029), intestinal type according to the Lauren classification (P=0.024), good histologic grade (P<0.001), early pathologic T-stage (P=0.012), and early American Joint Committee on Cancer stage (P=0.022). In the Kaplan-Meier analysis, the TLE1 expression was significantly associated with longer disease-free (P=0.022) and overall (P=0.001) survival rates.
Conclusions: We suggested that TLE1 expression is a good prognostic indicator in GCs.
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KEYWORD
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TLE1, Stomach neoplasms, Survival, Tissue array analysis
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