PMID- 21142526 OWN - NLM STAT- MEDLINE DCOM- 20120127 LR - 20211020 IS - 1557-8534 (Electronic) IS - 1547-3287 (Print) IS - 1547-3287 (Linking) VI - 20 IP - 8 DP - 2011 Aug TI - Mesenchymal stem cells secreting angiopoietin-like-5 support efficient expansion of human hematopoietic stem cells without compromising their repopulating potential. PG - 1371-81 LID - 10.1089/scd.2010.0456 [doi] AB - Clinical and preclinical applications of human hematopoietic stem cells (HSCs) are often limited by scarcity of cells. Expanding human HSCs to increase their numbers while maintaining their stem cell properties has therefore become an important area of research. Here, we report a robust HSC coculture system wherein cord blood CD34(+) CD133(+) cells were cocultured with mesenchymal stem cells engineered to express angiopoietin-like-5 in a defined medium. After 11 days of culture, SCID repopulating cells were expanded ~60-fold by limiting dilution assay in NOD-scid Il2rg(-/-) (NSG) mice. The cultured CD34(+) CD133(+) cells had similar engraftment potential to uncultured CD34(+) CD133(+) cells in competitive repopulation assays and were capable of efficient secondary reconstitution. Further, the expanded cells supported a robust multilineage reconstitution of human blood cells in NSG recipient mice, including a more efficient T-cell reconstitution. These results demonstrate that the expanded CD34(+) CD133(+) cells maintain both short-term and long-term HSC activities. To our knowledge, this ~60-fold expansion of SCID repopulating cells is the best expansion of human HSCs reported to date. Further development of this coculture method for expanding human HSCs for clinical and preclinical applications is therefore warranted. FAU - Khoury, Maroun AU - Khoury M AD - Department of Biology, Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. FAU - Drake, Adam AU - Drake A FAU - Chen, Qingfeng AU - Chen Q FAU - Dong, Di AU - Dong D FAU - Leskov, Ilya AU - Leskov I FAU - Fragoso, Maria F AU - Fragoso MF FAU - Li, Yan AU - Li Y FAU - Iliopoulou, Bettina P AU - Iliopoulou BP FAU - Hwang, William AU - Hwang W FAU - Lodish, Harvey F AU - Lodish HF FAU - Chen, Jianzhu AU - Chen J LA - eng GR - T32 GM007753/GM/NIGMS NIH HHS/United States GR - DK067356/DK/NIDDK NIH HHS/United States GR - AI69208/AI/NIAID NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20110131 PL - United States TA - Stem Cells Dev JT - Stem cells and development JID - 101197107 RN - 0 (AC133 Antigen) RN - 0 (ANGPTL5 protein, human) RN - 0 (Angiopoietin-like Proteins) RN - 0 (Angiopoietins) RN - 0 (Antigens, CD) RN - 0 (Antigens, CD34) RN - 0 (Glycoproteins) RN - 0 (PROM1 protein, human) RN - 0 (Peptides) RN - 0 (Prom1 protein, mouse) SB - IM MH - AC133 Antigen MH - Angiopoietin-like Proteins MH - Angiopoietins/*biosynthesis/genetics/metabolism MH - Animals MH - Antigens, CD/biosynthesis MH - Antigens, CD34/biosynthesis/blood MH - Cell Culture Techniques/methods MH - Cells, Cultured MH - Fetal Blood/cytology/transplantation MH - Glycoproteins/biosynthesis MH - Graft Survival/immunology MH - *Hematopoietic Stem Cell Transplantation MH - Hematopoietic Stem Cells/*cytology/immunology/*metabolism MH - Humans MH - Mesenchymal Stem Cell Transplantation MH - Mesenchymal Stem Cells/*metabolism MH - Mice MH - Peptides MH - T-Lymphocytes/transplantation MH - Transplantation, Heterologous/immunology PMC - PMC3148832 EDAT- 2010/12/15 06:00 MHDA- 2012/01/28 06:00 PMCR- 2012/08/01 CRDT- 2010/12/15 06:00 PHST- 2010/12/15 06:00 [entrez] PHST- 2010/12/15 06:00 [pubmed] PHST- 2012/01/28 06:00 [medline] PHST- 2012/08/01 00:00 [pmc-release] AID - 10.1089/scd.2010.0456 [pii] AID - 10.1089/scd.2010.0456 [doi] PST - ppublish SO - Stem Cells Dev. 2011 Aug;20(8):1371-81. doi: 10.1089/scd.2010.0456. Epub 2011 Jan 31.