PMID- 26167184 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20150713 LR - 20201001 IS - 1687-966X (Print) IS - 1687-9678 (Electronic) VI - 2015 DP - 2015 TI - Role of Bone Marrow-Derived Stem Cells in Polyps Development in Mice with Apc(Min/+) Mutation. PG - 354193 LID - 10.1155/2015/354193 [doi] LID - 354193 AB - We explored the hypothesis that an altered microenvironment (intestinal adenomatous polyp) could modify the differentiation program of bone marrow-derived stem cells (BMSCs), involving them in colon carcinogenesis. Sublethally irradiated 8-week-old female Apc(Min/+) mice were transplanted with bone marrow (BM) cells obtained from either male age-matched Apc(Min/+) (Apc-Tx-Apc) or wild type (WT) (WT-Tx-Apc) mice. At 4 and 7 weeks after transplantation, BM-derived colonocytes were recognized by colocalization of Y-chromosome and Cdx2 protein (specific colonocyte marker). Polyp number, volume, and grade of dysplasia were not influenced by irradiation/transplantation procedures since they were similar in both untreated female Apc(Min/+) and Apc-Tx-Apc mice. At 4 and 7 weeks after transplantation, a progressive significant reduction of polyp number and volume was observed in WT-Tx-Apc mice. Moreover, the number of WT-Tx-Apc mice with a high-grade dysplastic polyps significantly decreased as compared to Apc-Tx-Apc mice. Finally, at 4 and 7 weeks after transplantation, WT-Tx-Apc mice showed a progressive significant increase of Y+/Cdx2+ cells in "normal" mucosa, whereas, in the adenomatous tissue, Y+/Cdx2+ cells remained substantially unvaried. Our findings demonstrate that WT BMSCs do not participate in polyp development but rather inhibit their growth. The substitution of genotypically altered colonocytes with Y+/Cdx2+ cells probably contributes to this process. FAU - Barone, Michele AU - Barone M AD - Gastroenterology Unit, Department of Emergency and Organ Transplantation, University of Bari, Piazza G. Cesare 11, 70124 Bari, Italy. FAU - Scavo, Maria Principia AU - Scavo MP AD - Gastroenterology Unit, Department of Emergency and Organ Transplantation, University of Bari, Piazza G. Cesare 11, 70124 Bari, Italy ; Methodist Research Institute, 6670 Bertner Avenue, Houston, TX 77030, USA. FAU - Licinio, Raffaele AU - Licinio R AD - Gastroenterology Unit, Department of Emergency and Organ Transplantation, University of Bari, Piazza G. Cesare 11, 70124 Bari, Italy. FAU - Piombino, Michele AU - Piombino M AD - Radiotherapy Unit, Diagnostic Imaging Department, Polyclinic Hospital, Piazza G. Cesare 11, 70124 Bari, Italy. FAU - De Tullio, Nicola AU - De Tullio N AD - Gastroenterology Unit, Department of Emergency and Organ Transplantation, University of Bari, Piazza G. Cesare 11, 70124 Bari, Italy. FAU - Mallamaci, Rosanna AU - Mallamaci R AD - Department of Bioscience, Biotechnology and Biopharmaceutics, University of Bari, Via E. Orabona 4, 70124 Bari, Italy. FAU - Di Leo, Alfredo AU - Di Leo A AD - Gastroenterology Unit, Department of Emergency and Organ Transplantation, University of Bari, Piazza G. Cesare 11, 70124 Bari, Italy. LA - eng PT - Journal Article DEP - 20150616 PL - United States TA - Stem Cells Int JT - Stem cells international JID - 101535822 PMC - PMC4488009 EDAT- 2015/07/15 06:00 MHDA- 2015/07/15 06:01 PMCR- 2015/06/16 CRDT- 2015/07/14 06:00 PHST- 2015/03/29 00:00 [received] PHST- 2015/05/30 00:00 [accepted] PHST- 2015/07/14 06:00 [entrez] PHST- 2015/07/15 06:00 [pubmed] PHST- 2015/07/15 06:01 [medline] PHST- 2015/06/16 00:00 [pmc-release] AID - 10.1155/2015/354193 [doi] PST - ppublish SO - Stem Cells Int. 2015;2015:354193. doi: 10.1155/2015/354193. Epub 2015 Jun 16.