Stem Cells and Gastric Carcinogenesis: From Mouse to Human

  • Sherif M. Karam
Part of the Stem Cells and Cancer Stem Cells book series (STEM, volume 3)


The gastric epithelial stem cells actively proliferate to maintain themselves and to produce immediate descendents which act as uncommitted or committed progenitors giving rise to cell lineages producing the various contents of the gastric juice and several hormones. New research suggests that these epithelial stem/progenitor cells also play an important role in the development of gastric cancer. In this chapter, an evidence is presented based on results of examining three genetically manipulated mouse models in which the biological features and differentiation program of the gastric stem/progenitor cells were altered by different approaches: (1) knockout of the trefoil factor 1 gene which is expressed initially in the partially committed pre-pit cell progenitors known to produce both mucus- and acid-secreting cell lineages, (2) expression of Simian virus 40 large T antigen gene in the acid-secreting parietal cell lineage, and (3) ablation of the parietal cells by using the attenuated diphtheria toxin A fragment. Systematic analysis of these animal models as well as human gastric mucosal tissues representing the multistep process of gastric carcinogenesis provided some clues to the role played by gastric stem/progenitor cell during carcinogenesis and to the cellular origin of gastric cancer.


Stem cells Carcinogenesis Mouse Human Progenitor cells Transdifferentiation 



Research carried out by the author is supported by grants from United Arab Emirates University and from Terry Fox Fund for Cancer Research.


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Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  1. 1.Department of Anatomy, Faculty of Medicine and Health SciencesUAE UniversityAl-AinUnited Arab Emirates

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