PMID- 19092804 OWN - NLM STAT- MEDLINE DCOM- 20090311 LR - 20250214 IS - 1476-4687 (Electronic) IS - 0028-0836 (Linking) VI - 457 IP - 7229 DP - 2009 Jan 29 TI - Crypt stem cells as the cells-of-origin of intestinal cancer. PG - 608-11 LID - 10.1038/nature07602 [doi] AB - Intestinal cancer is initiated by Wnt-pathway-activating mutations in genes such as adenomatous polyposis coli (APC). As in most cancers, the cell of origin has remained elusive. In a previously established Lgr5 (leucine-rich-repeat containing G-protein-coupled receptor 5) knockin mouse model, a tamoxifen-inducible Cre recombinase is expressed in long-lived intestinal stem cells. Here we show that deletion of Apc in these stem cells leads to their transformation within days. Transformed stem cells remain located at crypt bottoms, while fuelling a growing microadenoma. These microadenomas show unimpeded growth and develop into macroscopic adenomas within 3-5weeks. The distribution of Lgr5(+) cells within stem-cell-derived adenomas indicates that a stem cell/progenitor cell hierarchy is maintained in early neoplastic lesions. When Apc is deleted in short-lived transit-amplifying cells using a different cre mouse, the growth of the induced microadenomas rapidly stalls. Even after 30weeks, large adenomas are very rare in these mice. We conclude that stem-cell-specific loss of Apc results in progressively growing neoplasia. FAU - Barker, Nick AU - Barker N AD - Hubrecht Institute for Developmental Biology and Stem Cell Research, Uppsalalaan 8, 3584CT Utrecht & University Medical Centre Utrecht, Netherlands. FAU - Ridgway, Rachel A AU - Ridgway RA FAU - van Es, Johan H AU - van Es JH FAU - van de Wetering, Marc AU - van de Wetering M FAU - Begthel, Harry AU - Begthel H FAU - van den Born, Maaike AU - van den Born M FAU - Danenberg, Esther AU - Danenberg E FAU - Clarke, Alan R AU - Clarke AR FAU - Sansom, Owen J AU - Sansom OJ FAU - Clevers, Hans AU - Clevers H LA - eng GR - G0301154/MRC_/Medical Research Council/United Kingdom GR - CRUK_/Cancer Research UK/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20081217 PL - England TA - Nature JT - Nature JID - 0410462 RN - 0 (Adenomatous Polyposis Coli Protein) RN - 0 (Lgr5 protein, mouse) RN - 0 (Receptors, G-Protein-Coupled) RN - 0 (beta Catenin) SB - IM MH - Adenoma/genetics/metabolism/pathology MH - Adenomatous Polyposis Coli Protein/*deficiency/*genetics MH - Animals MH - *Cell Lineage MH - Cell Proliferation MH - *Cell Transformation, Neoplastic/genetics/pathology MH - Colonic Neoplasms/genetics/metabolism/pathology MH - Genes, APC MH - Intestinal Neoplasms/*genetics/metabolism/*pathology MH - Mice MH - Neoplastic Stem Cells/metabolism/*pathology MH - Receptors, G-Protein-Coupled/analysis/genetics/metabolism MH - beta Catenin/metabolism EDAT- 2008/12/19 09:00 MHDA- 2009/03/12 09:00 CRDT- 2008/12/19 09:00 PHST- 2008/07/04 00:00 [received] PHST- 2008/10/31 00:00 [accepted] PHST- 2008/12/19 09:00 [entrez] PHST- 2008/12/19 09:00 [pubmed] PHST- 2009/03/12 09:00 [medline] AID - nature07602 [pii] AID - 10.1038/nature07602 [doi] PST - ppublish SO - Nature. 2009 Jan 29;457(7229):608-11. doi: 10.1038/nature07602. Epub 2008 Dec 17.