notch signaling pathway is inhibited in the development of barrett’s esophagus: an in vivo and in vitro study
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ID: 200745
2018
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Abstract
Objective. To explore the role of Notch signaling in the development of Barrett’s esophagus. Methods. Patients with esophagectomy and gastric interposition were recruited as a human model of gastroesophageal reflux disease. The expressions of Notch signaling genes in normal esophagus from surgical specimen and columnar metaplasia in the esophageal remnant after esophagectomy were evaluated by real time quantitative Polymerase Chain Reaction (RT-qPCR) and immunohistochemistry (IHC). For in vitro experiments, Het-1A cells were treated with hydrochloric acid, deoxycholic acid, mixture of hydrochloric acid and deoxycholic acid, or Notch1-siRNA, and expressions of Notch1, Hes1, MUC2, and K13 were evaluated via RT-qPCR and western blot. Results. Samples were obtained from 36 patients with columnar metaplasia in the esophageal remnant. Both IHC and RT-qPCR indicated that Notch1 and Hes1 expressions were significantly higher in normal esophagus than that in metaplasia. Hydrochloric acid and deoxycholic acid suppressed Notch1, Hes1, and K13 expressions, in concert with increasing MUC2 expressions. Notch inhibition by Notch1-siRNA contributed to the downregulation of Notch1, Hes1, and K13 expressions, whereas MUC2 expression was enhanced. Conclusions. Both hydrochloric acid and deoxycholic acid could suppress Notch signaling pathway in esophageal epithelial cells, and inhibited Notch signaling has important functions in the development of Barrett’s esophagus.
| Reference Key |
wang2018canadiannotch
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| Authors | ;Yun-Cang Wang;Zhi-Qiang Wang;Yong Yuan;Tao Ren;Peng-Zhi Ni;Long-Qi Chen |
| Journal | Journal of food science and technology |
| Year | 2018 |
| DOI |
10.1155/2018/4149317
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