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Low expression of RecQ‑like helicase 5 is associated with poor prognosis in patients with gastric cancer

  • Authors:
    • Yijia Lin
    • Huashe Wang
    • Xinyou Wang
    • Miao Li
    • Honglei Chen
    • Junsheng Peng
  • View Affiliations / Copyright

    Affiliations: Department of Gastrointestinal Surgery, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510655, P.R. China, Department of Digestion, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat‑sen University, Guangzhou, Guangdong 510655, P.R. China, Gastrointestinal Endoscopy Center, The Eighth Affiliated Hospital, Sun Yat‑sen University, Shenzhen, Guangdong 518033, P.R. China
    Copyright: © Lin et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY 4.0].
  • Pages: 985-991
    |
    Published online on: November 21, 2019
       https://doi.org/10.3892/ol.2019.11137
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Abstract

The role of RecQ‑like helicase 5 (RECQL5) in gastric cancer (GC) is unclear. This study investigated the expression, clinicopathological association and prognosis of RECQL5 protein in human GC. Firstly, the Oncomine database was used to determine the mRNA expression levels of RECQL5 in GC samples. GC samples and adjacent normal gastric tissue samples were subsequently assessed to determine RECQL5 protein expression levels using immunohistochemistry. The clinicopathological association with RECQL5 expression was analyzed. Multivariate Cox analysis was performed to determine the relationship between RECQL5 expression and survival outcomes. Data from the Oncomine database revealed that RECQL5 mRNA was significantly downregulated in GC tissues compared with that in normal gastric tissues (P<0.05). These results were then validated at the protein level as RECQL5 protein expression was found to be significantly downregulated in GC samples compared with that in normal gastric tissues (P<0.05). Low expression of RECQL5 was significantly associated with depth of tumor invasion, histological differentiation and TNM stage (all P<0.05) and indicated poor prognosis in patients with GC. Multivariate analysis revealed that low RECQL5 expression and depth of invasion were independent prognostic factors for GC (P<0.05). These results suggest that low expression of RECQL5 is associated with carcinogenesis and invasion in GC and with poor overall survival in patients with GC. RECQL5 may be a novel prognostic marker for patients with GC.
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Copy and paste a formatted citation
Spandidos Publications style
Lin Y, Wang H, Wang X, Li M, Chen H and Peng J: Low expression of RecQ‑like helicase 5 is associated with poor prognosis in patients with gastric cancer. Oncol Lett 19: 985-991, 2020.
APA
Lin, Y., Wang, H., Wang, X., Li, M., Chen, H., & Peng, J. (2020). Low expression of RecQ‑like helicase 5 is associated with poor prognosis in patients with gastric cancer. Oncology Letters, 19, 985-991. https://doi.org/10.3892/ol.2019.11137
MLA
Lin, Y., Wang, H., Wang, X., Li, M., Chen, H., Peng, J."Low expression of RecQ‑like helicase 5 is associated with poor prognosis in patients with gastric cancer". Oncology Letters 19.1 (2020): 985-991.
Chicago
Lin, Y., Wang, H., Wang, X., Li, M., Chen, H., Peng, J."Low expression of RecQ‑like helicase 5 is associated with poor prognosis in patients with gastric cancer". Oncology Letters 19, no. 1 (2020): 985-991. https://doi.org/10.3892/ol.2019.11137
Copy and paste a formatted citation
x
Spandidos Publications style
Lin Y, Wang H, Wang X, Li M, Chen H and Peng J: Low expression of RecQ‑like helicase 5 is associated with poor prognosis in patients with gastric cancer. Oncol Lett 19: 985-991, 2020.
APA
Lin, Y., Wang, H., Wang, X., Li, M., Chen, H., & Peng, J. (2020). Low expression of RecQ‑like helicase 5 is associated with poor prognosis in patients with gastric cancer. Oncology Letters, 19, 985-991. https://doi.org/10.3892/ol.2019.11137
MLA
Lin, Y., Wang, H., Wang, X., Li, M., Chen, H., Peng, J."Low expression of RecQ‑like helicase 5 is associated with poor prognosis in patients with gastric cancer". Oncology Letters 19.1 (2020): 985-991.
Chicago
Lin, Y., Wang, H., Wang, X., Li, M., Chen, H., Peng, J."Low expression of RecQ‑like helicase 5 is associated with poor prognosis in patients with gastric cancer". Oncology Letters 19, no. 1 (2020): 985-991. https://doi.org/10.3892/ol.2019.11137
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