Poorly differentiated adenocarcinoma and mucinous carcinoma of the colon and rectum show higher rates of loss of heterozygosity and loss of E-cadherin expression due to methylation of promoter region.

Abstract excerpt

Previous studies have reported that poorly differentiated adenocarcinoma and mucinous carcinoma of the colon and rectum (Por & Muc) show a low incidence and poor prognosis. However, genetic alterations and tumourigenesis of Por & Muc remain unclear. In our study, we analyzed the genetic and epigenetic alterations of Por & Muc to clarify the difference from those of well-differentiated adenocarcinoma (WD). First,...

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