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    標題: High Immunoreactivity of DUOX2 Is Associated With Poor Response to Preoperative Chemoradiation Therapy and Worse Prognosis in Rectal Cancers
    作者: Lin, Shih-Chun
    Chang, I-Wei
    Hsieh, Pei-Ling
    Lin, Ching-Yih
    Sun, Ding-Ping
    Sheu, Ming-Jen
    Yang, Ching-Chieh
    Lin, Li-Ching
    He, Hong-Lin
    Tian, Yu-Feng
    貢獻者: I Shou Univ, E DA Hosp, Dept Pathol, Div Clin Pathol
    I Shou Univ, Sch Med
    Chi Mei Med Ctr, Dept Med Image
    Chi Mei Med Ctr, Dept Internal Med, Div Gastroenterol & Hepatol
    Southern Taiwan Univ Sci & Technol, Dept Leisure Recreat & Tourism Management
    Chia Nan Univ Pharm & Sci, Dept Pharm
    Chi Mei Med Ctr, Dept Surg, Div Gen Surg
    Chi Mei Med Ctr, Dept Radiat Oncol
    I Shou Univ, E DA Hosp, Dept Pathol, Div Anat Pathol
    Chia Nan Univ Pharm & Sci, Dept Hlth & Nutr
    關鍵字: CCRT
    chemoradiotherapy
    dual oxidase 2
    DUOX2
    rectal cancer
    日期: 2017
    上傳時間: 2018-11-30 15:52:59 (UTC+8)
    出版者: Ivyspring Int Publ
    摘要: Purpose: Colorectal cancer is the third most common cancer and also the fourth most common cause of cancer mortality worldwide. For rectal cancer, neoadjuvant concurrent chemoradiotherapy (CCRT) followed by radical proctectomy is gold standard treatment for patients with stage II/III rectal cancer. By data mining a documented database of rectal cancer transcriptome (GSE35452) from Gene Expression Omnibus, National Center of Biotechnology Information, we recognized that DUOX2 was the most significantly up-regulated transcript among those related to cytokine and chemokine mediated signaling pathway (GO: 0019221). Hence, the aim of this study was to assess the DUOX2 expression level and its clinicopathological correlation and prognostic significance in patients of rectal cancer. Materials and Methods: DUOX2 immunostain was performed in 172 rectal adenocarcinomas treated with preoperative CCRT followed by radical proctectomy, which were divided into high-and low-expression subgroups. Furthermore, statistical analyses were examined to correlate the relationship between DUOX2 immunoreactivity and important clinical and pathological characteristics, as well as three survival indices: disease-specific survival (DSS), local recurrence-free survival (LRFS) and metastasis-free survival (MeFS). Results: DUOX2 overexpression was linked to post-CCRT tumor advancement, pre- and post-CCRT nodal metastasis and poor response to CCRT (all P <= 0.021). Furthermore, DUOX2 high expression was significantly associated with inferior DSS, LRFS and MeFS in univariate analysis (P <= 0.0097) and also served as an independent prognosticator indicating shorter DSS and LRFS interval in multivariate analysis (hazard ratio (HR) = 3.413, 95% confidence interval (CI): 1.349-8.633; HR = 4.533, 95% CI: 1.499-13.708, respectively). Conclusion: DUOX2 may play a pivotal role in carcinogenesis, tumor progression and response to neoadjuvant CCRT in rectal cancers, and serve as a novel prognostic biomarker. Additional researches to clarify the molecular and biochemical pathways are essential for developing promising DUOX2-targeted therapies for patients with rectal cancers.
    關聯: Journal of Cancer, v.8, n.14, pp.2756-2764
    Appears in Collections:[保健營養系(所) ] 期刊論文
    [藥學系(所)] 期刊論文

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