PMID- 20185687 OWN - NLM STAT- MEDLINE DCOM- 20100506 LR - 20220317 IS - 1522-1547 (Electronic) IS - 0193-1857 (Print) IS - 0193-1857 (Linking) VI - 298 IP - 5 DP - 2010 May TI - Sox9 expression marks a subset of CD24-expressing small intestine epithelial stem cells that form organoids in vitro. PG - G590-600 LID - 10.1152/ajpgi.00470.2009 [doi] AB - The inability to identify, isolate, and culture intestinal epithelial stem cells (IESCs) has been prohibitive to the study and therapeutic utilization of these cells. Using a Sox9(EGFP) mouse model, we demonstrate that Sox9(EGFP) fluorescence signatures can be used to differentiate between and enrich for progenitors (Sox9(EGFPsubLo)) and multipotent IESCs (Sox9(EGFPlo)). Sox9(EGFPlo) cells generate "organoids" in a recently defined culture system that mimics the native IESC niche. These organoids possess all four differentiated cell types of the small intestine epithelium, demonstrating the multipotent capacity of Sox9(EGFPlo) cells. Our results are consistent with the previously reported observation that single IESCs generate cryptlike units without a detectable mesenchymal cell component. A prospective search revealed that CD24 is expressed in the Sox9(EGFPlo) population and marks IESCs that form organoids in culture. CD24 represents the first cell surface marker that facilitates fluorescence-activated cell sorting enrichment of IESCs with widely available antibodies without requiring a specialized fluorescent reporter gene mouse model. FAU - Gracz, Adam D AU - Gracz AD AD - Department of Medicine, University of North Carolina at Chapel Hill, USA. FAU - Ramalingam, Sendhilnathan AU - Ramalingam S FAU - Magness, Scott T AU - Magness ST LA - eng GR - P30 DK034987/DK/NIDDK NIH HHS/United States GR - P30 NS045892-04/NS/NINDS NIH HHS/United States GR - 1-K01-DK080181-01/DK/NIDDK NIH HHS/United States GR - P30 NS045892/NS/NINDS NIH HHS/United States GR - 5P30DK034987/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20100225 PL - United States TA - Am J Physiol Gastrointest Liver Physiol JT - American journal of physiology. Gastrointestinal and liver physiology JID - 100901227 RN - 0 (CD24 Antigen) RN - 0 (SOX9 Transcription Factor) SB - IM MH - Animals MH - CD24 Antigen/*genetics MH - Cell Differentiation MH - Cell Line MH - Epithelial Cells/metabolism MH - Flow Cytometry MH - Intestine, Small/cytology/immunology/*metabolism MH - Mice MH - Organoids/*growth & development MH - SOX9 Transcription Factor/*biosynthesis MH - Stem Cells/cytology PMC - PMC2867430 EDAT- 2010/02/27 06:00 MHDA- 2010/05/07 06:00 PMCR- 2011/05/01 CRDT- 2010/02/27 06:00 PHST- 2010/02/27 06:00 [entrez] PHST- 2010/02/27 06:00 [pubmed] PHST- 2010/05/07 06:00 [medline] PHST- 2011/05/01 00:00 [pmc-release] AID - ajpgi.00470.2009 [pii] AID - GI-00470-2009 [pii] AID - 10.1152/ajpgi.00470.2009 [doi] PST - ppublish SO - Am J Physiol Gastrointest Liver Physiol. 2010 May;298(5):G590-600. doi: 10.1152/ajpgi.00470.2009. Epub 2010 Feb 25.