title: Neonatal mesenchymal-like cells adapt to surrounding cells.
abstract: Hematopoietic cord blood (CB) transplantations are performed to treat patients with life-threatening diseases. Besides endothelial cells, the neonatal multipotent stromal cell subpopulations CDSCs (CB-derived stromal cells) and USSCs (unrestricted somatic stromal cells) are like bone marrow (BM) SCs interesting candidates for clinical applications if detailed knowledge is available. Clonal USSC compared to CDSC and BMSC lines differ in their developmental origin reflected by a distinct HOX expression. About 20 (out of 39) HOX genes are expressed in CDSCs (HOX+), whereas native USSCs reveal no HOX gene expression (HOX-). Moreover, USSCs display a lineage-specific absence of the adipogenic differentiation potential. As the specific HOX code can be ascribed to topographic bodysites it may be important to match the HOX code of transplanted cells to the tissue of interest. Herein co-culture experiments were performed, presenting a novel approach to modulate the differentiation potency of USSCs towards HOX positive stromal cells. After co-culturing native USSCs with CDSCs and BMSCs, USSCs adapt a positive HOX code and gain the adipogenic differentiation capacity. These results present for the first time modulation of a lineage-specific differentiation potential by co-culture. Finally, USSCs can be claimed as potential candidates to substitute unique progenitor cell populations in clinical approaches.
authors: Institute for Transplantation Diagnostics and Cell Therapeutics, Heinrich-Heine-University Medical Center, Düsseldorf, Germany. Electronic address: liedtke@itz.uni-duesseldorf.de.
authors: Stefanie
authors: S
authors: Liedtke
authors: Eva Maria
authors: EM
authors: Freytag
authors: Julia
authors: J
authors: Bosch
authors: Amelie Pia
authors: AP
authors: Houben
authors: Teja Falk
authors: TF
authors: Radke
authors: René
authors: R
authors: Deenen
authors: Karl
authors: K
authors: Köhrer
authors: Gesine
authors: G
authors: Kögler
mesh_terms: D002454:Cell Differentiation / Q000502:physiology; D002478:Cells, Cultured; D018920:Coculture Techniques; D005260:Female; D005312:Fetal Blood / Q000166:cytology* / Q000378:metabolism; D015870:Gene Expression; D057809:HEK293 Cells; D006801:Humans; D007150:Immunohistochemistry; D007231:Infant, Newborn; D059630:Mesenchymal Stem Cells / Q000166:cytology* / Q000378:metabolism; D014162:Transfection