PuSH - Publication Server of Helmholtz Zentrum München: GATA transcription in a small rhodamine 123lowCD34+subpopulation of a peripheral blood-derived CD34-CD105+ mesenchymal cell line.

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Conrad, C.* ; Gottgens, B.* ; Kinston, S.* ; Ellwart, J. ; Huss, R.*

GATA transcription in a small rhodamine 123lowCD34+subpopulation of a peripheral blood-derived CD34-CD105+ mesenchymal cell line.

Exp. Hematol. 30, 887-895 (2002)

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Open Access Green as soon as Postprint is submitted to ZB.

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Objective. Based on previous animal experiments that suggest the plasticity of peripheral blood-derived, CD34(-) stem cell lines, the aim of this study was to isolate CD34(-) stem cell lines from human peripheral blood cells and obtain evidence of their multipotency and plasticity.Materials and Methods. Adherent growing cells were isolated from peripheral blood mononuclear cells from a healthy volunteer donor and different cell clones were established after SV40 large-T-antigen-mediated immortalization. The immunophenotype of the cell lines was investigated by flow cytometry. One particular cell clone, V54/2, was stained with rhodamine 123, and the Rh123(low) and Rh123(high) subpopulations were sorted for a reverse transcriptase polymerase chain reaction gene expression survey and distinct differences in morphology and biologic behavior.Results. The peripheral blood-derived and fibroblast-like cell line V54/2 expressed high levels of CD10 and CD105 and showed only a very low level expression of CD34 (<1.0%) and CD117 (c-kit). Among the entire CD34(-)CD105(+) cell population that transcribed factors such as Myb, Tie-1, and VEGF, there was a small Rh123(low)CD34(+) subpopulation that transcribed significant levels of several members of the GATA family of transcription factors. The morphology of the Rh123(low)CD34(+) (also expressing the P-glycoprotein) was different compared to the Rh123(high)CD34(-) population. Mesenchymal differentiation into glial fibrillary acidic protein (GFAP)(+) glial cells could be shown from the entire CD34(-)CD105(+) cell population.Conclusions. The findings provide evidence that it is possible to isolate CD34(-)CD105(+) mesenchymal stem cell lines from human peripheral blood cells that contain a small subpopulation of CD34(+) and GATA-transcribing cells. Those cells are potential hematopoietic progenitors and can be recruited from the CD34(-) stem cell pool. The plasticity of stem cells seems to require essential molecular tools, such as a panel of transcription factors, to respond to the environmental demand within a biologic system.

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Publication type Article: Journal article

Document type Scientific Article

Corresponding Author

Keywords HEMATOPOIETIC STEM-CELL; BONE-MARROW-CELLS; UMBILICAL-CORD BLOOD; STROMAL CELLS; IN-VIVO; ORGAN DISTRIBUTION; PROGENITOR CELLS; SPLEEN COLONIES; CD34(-) CELLS; NOD/SCID MICE

ISSN (print) / ISBN 0301-472X

e-ISSN 0301-472X

Journal Experimental Hematology

Quellenangaben Volume: 30, Issue: 8, Pages: 887-895

Publisher Elsevier

Non-patent literature Publications

Reviewing status Peer reviewed

Institute(s) Institute of Molecular Immunology (IMI)