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- W2113405864 abstract "Abstract Purpose: This study aims to address the hypothesis that the high-mobility group A2 (HMGA2), an oncofetal protein, relates to survivability and serves as a prognostic biomarker for colorectal cancer (CRC). Experimental Design: This is a retroprospective multiple center study. The HMGA2 expression level was determined by performing immunohistochemistry on surgical tissue samples of 89 CRCs from a training set and 191 CRCs from a validation set. The Kaplan–Meier analysis and COX proportional hazard model were employed to analyze the survivability. Results: Multivariate logistic analysis indicated that the expression of HMGA2 significantly correlates with distant metastasis in training set (odds ratio, OR = 3.53, 95% CI: 1.37–9.70) and validation set (OR = 6.38, 95% CI: 1.47–43.95). Survival analysis revealed that the overexpression of HMGA2 is significantly associated with poor survival of CRC patients (P < 0.05). The adjusted HRs for overall survival were 2.38 (95% CI: 1.30–4.34) and 2.14 (95% CI: 1.21–3.79) in training and validation sets, respectively. Further investigation revealed that HMGA2 delays the clearance of γ-H2AX in HCT-116 and SW480 cells post γ-irradiation, which supports our finding that CRC patients with HMAG2-positive staining in primary tumors had augmented the efficacy of adjuvant radiotherapy (HR = 0.18, 95% CI: 0.04–0.63). Conclusion: Overexpression of HMGA2 is associated with metastasis and unequivocally occurred in parallel with reduced survival rates of patients with CRC. Therefore, HMGA2 may potentially serve as a biomarker for predicting aggressive CRC with poor survivability and as an indicator for better response of radiotherapy. Clin Cancer Res; 17(8); 2570–80. ©2011 AACR." @default.
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- W2113405864 date "2011-04-14" @default.
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- W2113405864 title "Overexpression of HMGA2 Promotes Metastasis and Impacts Survival of Colorectal Cancers" @default.
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- W2113405864 doi "https://doi.org/10.1158/1078-0432.ccr-10-2542" @default.
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