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CHD1L is a novel independent prognostic factor for gastric cancer

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Abstract

Background

Chromodomain helicase/ATPase DNA binding protein 1-like gene (CHD1L) is involved in malignancies. However, the role of CHD1L in gastric cancer (GC) has not been elucidated. The aim of this study is to explore the clinical role of CHD1L in GC.

Methods

The gene and protein expression levels of CHD1L were detected by quantitative real-time PCR and Western blot analysis in fresh samples of GC and paired adjacent noncancerous tissue (n = 34). We evaluated the CHD1L expression by immunohistochemistry in a large number of GC patients (n = 616) and paired adjacent noncancerous tissues from December 1, 2004 to December 1, 2008. The correlations of CHD1L expression with clinicopathological features and clinical outcome were analyzed.

Results

The gene and protein expression levels of CHD1L were higher in fresh samples of GC than in paired adjacent noncancerous tissues as determined by quantitative real-time PCR and Western blot analysis. Immunohistochemical analysis showed that positive expression rates of CHD1L in GC and paired adjacent noncancerous tissues were 58.7 % (361/616) and 7.3 % (45/616), respectively. CHD1L positivity was significantly associated with clinical stage and distant metastasis. GC patients with positive CHD1L expression had shorter overall survival than those with negative CHD1L expression. Multivariate analysis showed that CHD1L was an independent prognostic marker for overall survival [Hazard Ratio (HR) = 5.952, 95 % confidence interval (CI) = 3.194–11.187, P = 0.0043].

Conclusion

These results indicated that CHD1L could serve as a prognostic marker for GC.

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Authors and Affiliations

  1. Department of Hepatobiliary Surgery, Provincial Hospital Affiliated to Shandong University, 324 Jingwu Road, Jinan, 250021, Shandong, China

    Z. Su, J. Zhao, G. Xian, W. Geng, Z. Rong, Y. Wu & C. Qin

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  1. Z. Su
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  2. J. Zhao
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  3. G. Xian
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  4. W. Geng
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  5. Z. Rong
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  6. Y. Wu
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  7. C. Qin
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Correspondence to Z. Su.

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Su, Z., Zhao, J., Xian, G. et al. CHD1L is a novel independent prognostic factor for gastric cancer. Clin Transl Oncol 16, 702–707 (2014). https://doi.org/10.1007/s12094-013-1136-8

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  • DOI: https://doi.org/10.1007/s12094-013-1136-8

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