作者: Masanobu Takahashi , Miriam Cuatrecasas , Francesc Balaguer , Keun Hur , Yuji Toiyama
DOI: 10.1371/JOURNAL.PONE.0046684
关键词: Malignancy 、 Clinical significance 、 Oncology 、 Colorectal cancer 、 DNA methylation 、 Internal medicine 、 Cohort 、 Disease 、 Oxaliplatin 、 Medicine 、 Stage (cooking) 、 General Biochemistry, Genetics and Molecular Biology 、 General Agricultural and Biological Sciences 、 General Medicine
摘要: Aim Development of robust prognostic and/or predictive biomarkers in patients with colorectal cancer (CRC) is imperative for advancing treatment strategies this disease. We aimed to determine whether expression status certain miRNAs might have prognostic/predictive value CRC treated conventional cytotoxic chemotherapies. Methods We studied a cohort 273 specimens from stage II/III 5-fluorouracil-based adjuvant chemotherapy and IV subjected 5-fluorouracil oxaliplatin-based chemotherapy. In screening set (n = 44), 13 21 candidate were successfully quantified by multiplex quantitative RT-PCR. the validation comprising entire patient cohort, miR-148a was assessed RT-PCR, its promoter methylation bisulfite pyrosequencing. Lastly, we analyzed associations between survival. Results Among studied, most significantly down-regulated advanced tissues. III CRC, low associated shorter disease free-survival (DFS), worse therapeutic response, poor overall survival (OS). Furthermore, correlated inversely expression, CRC. multivariate analysis, an independent biomarker (DFS III, vs. high HR 2.11; OS IV, 1.93). Discussion MiR-148a has chemotherapy, which important clinical implications improving personalized management malignancy.