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Activation of EGFR and ERBB2 by Helicobacter pylori results in survival of gastric epithelial cells with DNA damage.


AUTHORS

Chaturvedi| Asim| Piazuelo| Yan| Barry| Sierra| Delgado| Hill| Casero| Bravo| Dominguez| Correa| Polk| Washington| Rose| Schey| Morgan| Peek| Wilson R| M| MB| F| DP| JC| AG| S| RA| LE| RL| P| DB| MK| KL| KL| DR| RM| KTRupesh| Mohammad| M Blanca| Fang| Daniel P| Johanna Carolina| Alberto G| Salisha| Robert A| Luis E| Ricardo L| Pelayo| D Brent| M Kay| Kristie L| Kevin L| Douglas R| Richard M| Keith T . Gastroenterology. 2014 6 ; 146(7). 1739-51.e14

ABSTRACT

The gastric cancer-causing pathogen Helicobacter pylori up-regulates spermine oxidase (SMOX) in gastric epithelial cells, causing oxidative stress-induced apoptosis and DNA damage. A subpopulation of SMOX(high) cells are resistant to apoptosis, despite their high levels of DNA damage. Because epidermal growth factor receptor (EGFR) activation can regulate apoptosis, we determined its role in SMOX-mediated effects.



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