Role of Kruppel-Like Factor 5 in Deoxycholic Acid-Mediated Intestinal Transdifferentiation of Esophageal Squamous Epithelium

Barrett's esophagus (BE) is an acquired condition in which normal squamous epithelium is replaced with metaplastic columnar epithelium as a consequence of gastroesophageal reflux disease. BE is known as a precursor of esophageal adenocarcinoma. Currently, the molecular mechanism underlying epithelial metaplasia in BE patients remains unknown. Therefore, we investigated the role of Krüppel-like factor 5 (KLF5) signaling in the initiation of BE-associated metaplasia. Sprague-Dawley (SD) rats were used to create a surgical model of bile reflux injury. Immunohistochemistry was performed to analyze human and mouse esophageal specimens. Human esophageal squamous epithelial (HET-1A) cells were treated with bile acid and used in transfection experiments. Quantitative real-time PCR and western blot analysis were performed to detect the expression of KLF5, CDX2, MUC2 and villin.Epithelial tissue from both the rat BE model and human BE patients strongly expressed KLF5, CDX2, MUC2, and villin. Bile acid treatment also increased the expression of KLF5, CDX2, MUC2 and villin in esophageal epithelial cells in a time-dependent manner. Moreover, siRNA-mediated knockdown of KLF5 blocked the expression of CDX2, MUC2 and villin, but transfection of a KLF5 expression vector into esophageal epithelial cells promoted their transdifferentiation into columnar-like cells, as demonstrated by increased expression of the intestinal markers CDX2, MUC2 and villin. Thus, in addition to its function as ...
Source: Journal of Cancer - Category: Cancer & Oncology Authors: Tags: Research Paper Source Type: research

Related Links:

ConclusionsOur study demonstrates the antitumor effect of IL-24 on endometrial cancer and shows that IL-24 may be a promising therapeutic gene for endometrial cancer gene therapy.Graphical abstract
Source: Biomedicine and Pharmacotherapy - Category: Drugs & Pharmacology Source Type: research
Source: Cancer Management and Research - Category: Cancer & Oncology Tags: Cancer Management and Research Source Type: research
Source: Cancer Management and Research - Category: Cancer & Oncology Tags: Cancer Management and Research Source Type: research
Source: OncoTargets and Therapy - Category: Cancer & Oncology Tags: OncoTargets and Therapy Source Type: research
Source: Cancer Management and Research - Category: Cancer & Oncology Tags: Cancer Management and Research Source Type: research
Source: OncoTargets and Therapy - Category: Cancer & Oncology Tags: OncoTargets and Therapy Source Type: research
Source: OncoTargets and Therapy - Category: Cancer & Oncology Tags: OncoTargets and Therapy Source Type: research
Source: OncoTargets and Therapy - Category: Cancer & Oncology Tags: OncoTargets and Therapy Source Type: research
Source: Cancer Management and Research - Category: Cancer & Oncology Tags: Cancer Management and Research Source Type: research
Publication date: Available online 20 January 2020Source: Clinica Chimica ActaAuthor(s): Hanna AntushevichAbstractFecal microbiota transplantation (FMT) is the introduction (transplantation) of gut microbiota obtained from the faeces of a healthy donor into the patient’s gastrointestinal tract. Most often, such therapy is used the treatment of gastrointestinal diseases caused by the activity of pathogenic or conditionally pathogenic microorganisms, however, recently an increasing number of studies have reported the use of fecal microbiota transplantation for the treatment of diseases such as metabolic syndrome, diabe...
Source: Clinica Chimica Acta - Category: Laboratory Medicine Source Type: research
More News: Acid Reflux | Adenocarcinoma | Bile | Cancer | Cancer & Oncology | Epithelial Cancer | Esophagus Cancer | Gastroenterology | Gastroesophageal Reflux Disease | GERD