PURPOSE: The purpose of present study was to investigate the methylation status of the promoter region in five genes (mothers against decapentaplegic homolog 4, fragile histidine triad protein, death-associated protein kinase 1, adenomatous polyposis coli (APC), and E-cadherin), which are known to be involved in the pathogenesis of colorectal cancer (CRC) and its clinicopathological significance. METHODS: The study subjects were 60 CRC patients, 40 patients with adenomatous colorectal polyp and 60 healthy control individuals. We further enrolled a total of 16 patients (two patients with Crohn's disease, two patients with ulcerative colitis, one patient with serrated adenoma, and 11 patients with colorectal cancer). The methylation states of the five genes were determined in peripheral blood plasma using methylation-specific polymerase chain reaction single-strand conformation polymorphism analysis. RESULTS: This study showed the most sensitive epigenetic markers, E-cadherin (60 %), followed by APC (57 %), for detecting CRC. E-cadherin and APC had similar specificities and amplified 84 and 86 %, respectively, of CRC patients compared to non-CRC patients. Additionally, APC was the only marker to be significantly increased (OR = 6.67, 95 % CI = 1.19-23.4, P = 0.045) and the most sensitive (57 %) and specific (89 %) marker in stage I CRC. Though we have not examined the paired cancer tissues and plasma, there was relatively high concordant rate (60-80 %) in our limited number of colorectal cancer patients. CONCLUSIONS: Five genes, promoter methylation, in plasma were statistically significant risk factors in CRC patients. In this study, E-cad and APC genes may be particularly useful epigenetic biomarkers in plasma for the detection of CRC. Additionally, APC may able to identify early potential CRC.
PURPOSE: The purpose of present study was to investigate the methylation status of the promoter region in five genes (mothers against decapentaplegic homolog 4, fragile histidine triad protein, death-associated protein kinase 1, adenomatous polyposis coli (APC), and E-cadherin), which are known to be involved in the pathogenesis of colorectal cancer (CRC) and its clinicopathological significance. METHODS: The study subjects were 60 CRC patients, 40 patients with adenomatous colorectal polyp and 60 healthy control individuals. We further enrolled a total of 16 patients (two patients with Crohn's disease, two patients with ulcerative colitis, one patient with serrated adenoma, and 11 patients with colorectal cancer). The methylation states of the five genes were determined in peripheral blood plasma using methylation-specific polymerase chain reaction single-strand conformation polymorphism analysis. RESULTS: This study showed the most sensitive epigenetic markers, E-cadherin (60 %), followed by APC (57 %), for detecting CRC. E-cadherin and APC had similar specificities and amplified 84 and 86 %, respectively, of CRC patients compared to non-CRC patients. Additionally, APC was the only marker to be significantly increased (OR = 6.67, 95 % CI = 1.19-23.4, P = 0.045) and the most sensitive (57 %) and specific (89 %) marker in stage I CRC. Though we have not examined the paired cancer tissues and plasma, there was relatively high concordant rate (60-80 %) in our limited number of colorectal cancerpatients. CONCLUSIONS: Five genes, promoter methylation, in plasma were statistically significant risk factors in CRC patients. In this study, E-cad and APC genes may be particularly useful epigenetic biomarkers in plasma for the detection of CRC. Additionally, APC may able to identify early potential CRC.
Authors: T Druck; P Hadaczek; T B Fu; M Ohta; Z Siprashvili; R Baffa; M Negrini; K Kastury; M L Veronese; D Rosen; J Rothstein; P McCue; M G Cotticelli; H Inoue; C M Croce; K Huebner Journal: Cancer Res Date: 1997-02-01 Impact factor: 12.701
Authors: Malcolm V Brock; Craig M Hooker; Emi Ota-Machida; Yu Han; Mingzhou Guo; Stephen Ames; Sabine Glöckner; Steven Piantadosi; Edward Gabrielson; Genevieve Pridham; Kristen Pelosky; Steven A Belinsky; Stephen C Yang; Stephen B Baylin; James G Herman Journal: N Engl J Med Date: 2008-03-13 Impact factor: 91.245
Authors: Anke Reinacher-Schick; Stephan E Baldus; Bashra Romdhana; Stephanie Landsberg; Marc Zapatka; Stefan P Mönig; Arnulf H Hölscher; Hans P Dienes; Wolff Schmiegel; Irmgard Schwarte-Waldhoff Journal: J Pathol Date: 2004-04 Impact factor: 7.996
Authors: M C García-Cardona; F Huang; J M García-Vivas; C López-Camarillo; B E Del Río Navarro; E Navarro Olivos; E Hong-Chong; F Bolaños-Jiménez; L A Marchat Journal: Int J Obes (Lond) Date: 2014-02-19 Impact factor: 5.095
Authors: E Danese; A M Minicozzi; M Benati; M Montagnana; E Paviati; G L Salvagno; M Gusella; F Pasini; G C Guidi; G Lippi Journal: Br J Cancer Date: 2013-07-09 Impact factor: 7.640