PMID- 22471939 OWN - NLM STAT- MEDLINE DCOM- 20130419 LR - 20211021 IS - 1557-8534 (Electronic) IS - 1547-3287 (Print) IS - 1547-3287 (Linking) VI - 21 IP - 17 DP - 2012 Nov 20 TI - Human olfactory mucosa multipotent mesenchymal stromal cells promote survival, proliferation, and differentiation of human hematopoietic cells. PG - 3187-96 LID - 10.1089/scd.2012.0084 [doi] AB - Multipotent mesenchymal stromal cells (MSCs) from the human olfactory mucosa (OM) are cells that have been proposed as a niche for neural progenitors. OM-MSCs share phenotypic and functional properties with bone marrow (BM) MSCs, which constitute fundamental components of the hematopoietic niche. In this work, we investigated whether human OM-MSCs may promote the survival, proliferation, and differentiation of human hematopoietic stem cells (HSCs). For this purpose, human bone marrow cells (BMCs) were co-cultured with OM-MSCs in the absence of exogenous cytokines. At different intervals, nonadherent cells (NACs) were harvested from BMC/OM-MSC co-cultures, and examined for the expression of blood cell markers by flow cytometry. OM-MSCs supported the survival (cell viability >90%) and proliferation of BMCs, after 54 days of co-culture. At 20 days of co-culture, flow cytometric and microscopic analyses showed a high percentage (73%) of cells expressing the pan-leukocyte marker CD45, and the presence of cells of myeloid origin, including polymorphonuclear leukocytes, monocytes, basophils, eosinophils, erythroid cells, and megakaryocytes. Likewise, T (CD3), B (CD19), and NK (CD56/CD16) cells were detected in the NAC fraction. Colony-forming unit-granulocyte/macrophage (CFU-GM) progenitors and CD34(+) cells were found, at 43 days of co-culture. Reverse transcriptase-polymerase chain reaction (RT-PCR) studies showed that OM-MSCs constitutively express early and late-acting hematopoietic cytokines (i.e., stem cell factor [SCF] and granulocyte- macrophage colony-stimulating factor [GM-CSF]). These results constitute the first evidence that OM-MSCs may provide an in vitro microenvironment for HSCs. The capacity of OM-MSCs to support the survival and differentiation of HSCs may be related with the capacity of OM-MSCs to produce hematopoietic cytokines. FAU - Diaz-Solano, Dylana AU - Diaz-Solano D AD - Unidad de Terapia Celular-Laboratorio de Patologia Celular y Molecular, Centro de Medicina Experimental, Instituto Venezolano de Investigaciones Cientificas (IVIC), Caracas, Venezuela. FAU - Wittig, Olga AU - Wittig O FAU - Ayala-Grosso, Carlos AU - Ayala-Grosso C FAU - Pieruzzini, Rosalinda AU - Pieruzzini R FAU - Cardier, Jose E AU - Cardier JE LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120518 PL - United States TA - Stem Cells Dev JT - Stem cells and development JID - 101197107 RN - 0 (Antigens, CD34) RN - 0 (Biomarkers) RN - 0 (CD56 Antigen) RN - 0 (NCAM1 protein, human) RN - 0 (Stem Cell Factor) RN - 83869-56-1 (Granulocyte-Macrophage Colony-Stimulating Factor) RN - EC 3.1.3.48 (Leukocyte Common Antigens) RN - EC 3.1.3.48 (PTPRC protein, human) SB - IM MH - Antigens, CD34/genetics/metabolism MH - Biomarkers/metabolism MH - Bone Marrow Cells/cytology/metabolism MH - CD56 Antigen/genetics/metabolism MH - Cell Count MH - Cell Culture Techniques/methods MH - *Cell Differentiation MH - *Cell Proliferation MH - Cell Survival MH - Cells, Cultured MH - Cellular Microenvironment MH - Coculture Techniques/methods MH - Colony-Forming Units Assay MH - Flow Cytometry MH - Granulocyte-Macrophage Colony-Stimulating Factor/genetics/metabolism MH - Hematopoietic Stem Cells/*cytology/metabolism MH - Humans MH - Leukocyte Common Antigens/genetics/metabolism MH - Leukocytes, Mononuclear/metabolism MH - Lymphopoiesis MH - Mesenchymal Stem Cells/cytology/*metabolism MH - Myelopoiesis MH - Olfactory Mucosa/*cytology MH - Reverse Transcriptase Polymerase Chain Reaction MH - Stem Cell Factor/genetics/metabolism MH - Time Factors PMC - PMC3495125 EDAT- 2012/04/05 06:00 MHDA- 2013/04/23 06:00 PMCR- 2013/11/20 CRDT- 2012/04/05 06:00 PHST- 2012/04/05 06:00 [entrez] PHST- 2012/04/05 06:00 [pubmed] PHST- 2013/04/23 06:00 [medline] PHST- 2013/11/20 00:00 [pmc-release] AID - 10.1089/scd.2012.0084 [pii] AID - 10.1089/scd.2012.0084 [doi] PST - ppublish SO - Stem Cells Dev. 2012 Nov 20;21(17):3187-96. doi: 10.1089/scd.2012.0084. Epub 2012 May 18.