alexa Lgr5(+ve) stem cells drive self-renewal in the stomach and build long-lived gastric units in vitro.
Oncology

Oncology

Chemotherapy: Open Access

Author(s): Barker N, Huch M, Kujala P, van de Wetering M, Snippert HJ,

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Abstract The study of gastric epithelial homeostasis and cancer has been hampered by the lack of stem cell markers and in vitro culture methods. The Wnt target gene Lgr5 marks stem cells in the small intestine, colon, and hair follicle. Here, we investigated Lgr5 expression in the stomach and assessed the stem cell potential of the Lgr5(+ve) cells by using in vivo lineage tracing. In neonatal stomach, Lgr5 was expressed at the base of prospective corpus and pyloric glands, whereas expression in the adult was predominantly restricted to the base of mature pyloric glands. Lineage tracing revealed these Lgr5(+ve) cells to be self-renewing, multipotent stem cells responsible for the long-term renewal of the gastric epithelium. With an in vitro culture system, single Lgr5(+ve) cells efficiently generated long-lived organoids resembling mature pyloric epithelium. The Lgr5 stem cell marker and culture method described here will be invaluable tools for accelerating research into gastric epithelial renewal, inflammation/infection, and cancer. Copyright 2010 Elsevier Inc. All rights reserved. This article was published in Cell Stem Cell and referenced in Chemotherapy: Open Access

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