title: Clinical and Prognostic Implications of Transcription Factor SOX4 in Patients with Colon Cancer.
abstract: Colon cancer is one of the most common malignant cancers worldwide but the current therapeutic approaches for advanced colon cancer are less efficient. This study investigated associations between the expression of nuclear transcription factor SOX4 and various clinicopathologic parameters as well as patients' survival. Expression levels of nuclear SOX4 were analyzed by immunohistochemistry; the data comprised colon tissues from 263 patients with colon cancer. Paired t tests were used to analyze the differences in nuclear SOX4 expression between tumor and non-tumor tissues from each patient. Two-tailed Χ(2) tests were performed to determine whether the differences in nuclear SOX4 expression and clinicopathologic parameters were significant. Time-to-event endpoints for clinicopathologic parameters were plotted using the Kaplan-Meier method, and statistical significance was determined using univariate log-rank tests. Cox proportional hazard model was used for multivariate analysis to determine the independence of prognostic effects of nuclear SOX4 expression. Overexpression of nuclear SOX4 was significantly correlated with depth of invasion (P = 0.0041), distant metastasis (P<0.0001), and stage (P = 0.0001). Patients who displayed high expression levels of nuclear SOX4 achieved a significantly poorer disease-free survival rate, compared with patients with low SOX4 expression levels (P<0.001). Univariate Cox regression analysis showed that overexpression of nuclear SOX4 was a clear prognostic marker for colon cancer (P = 0.001). Overexpression of nuclear SOX4 may be used as a marker to predict the outcome of patients with colon cancer.
authors.affiliation: Department of Biochemistry, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan ; Orthopedics Research Center, Taipei Medical University Hospital, Taipei, Taiwan.
authors.forename: Chun-Mao
authors.initials: CM
authors.lastname: Lin
authors.forename: Chia-Lang
authors.initials: CL
authors.lastname: Fang
authors.forename: You-Cheng
authors.initials: YC
authors.lastname: Hseu
authors.forename: Chun-Liang
authors.initials: CL
authors.lastname: Chen
authors.forename: Jin-Wun
authors.initials: JW
authors.lastname: Wang
authors.forename: Sheng-Lung
authors.initials: SL
authors.lastname: Hsu
authors.forename: Ming-Dao
authors.initials: MD
authors.lastname: Tu
authors.forename: Shih-Ting
authors.initials: ST
authors.lastname: Hung
authors.forename: Chein
authors.initials: C
authors.lastname: Tai
authors.forename: Yih-Huei
authors.initials: YH
authors.lastname: Uen
authors.forename: Kai-Yuan
authors.initials: KY
authors.lastname: Lin
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D014408:Biomarkers, Tumor / Q000378:metabolism; D002460:Cell Line; D002467:Cell Nucleus / Q000378:metabolism; D003110:Colonic Neoplasms / Q000378:metabolism* / Q000401:mortality / Q000473:pathology; D018572:Disease-Free Survival; D005260:Female; D005500:Follow-Up Studies; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D007150:Immunohistochemistry; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011379:Prognosis; D016016:Proportional Hazards Models; D055751:SOXC Transcription Factors / Q000378:metabolism*; D055815:Young Adult
chemical_list: D014408:Biomarkers, Tumor; C083431:SOX4 protein, human; D055751:SOXC Transcription Factors