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Title: Allogeneic non-adherent bone marrow cells facilitate hematopoietic recovery but do not lead to allogeneic engraftment
Authors: Fricke, Stephan
Ackermann, Manuela
Stolzing, Alexandra
Schimmelpfennig, Christoph
Hilger, Nadja
Jahns, Jutta
Hildebrandt, Guido
Emmrich, Frank
Ruschpler, Peter
Posel, Claudia
Kamprad, Manja
Sack, Ulrich
Issue Date: 2009
Publisher: Public Library Science (© 2009 Fricke et al)
Citation: FRICKE, S ... et al, 2009. Allogeneic non-adherent bone marrow cells facilitate hematopoietic recovery but do not lead to allogeneic engraftment. PLoS ONE, 4(7): e6157, 11pp.
Abstract: Background: Non adherent bone marrow derived cells (NA-BMCs) have recently been described to give rise to multiple mesenchymal phenotypes and have an impact in tissue regeneration. Therefore, the effects of murine bone marrow derived NA-BMCs were investigated with regard to engraftment capacities in allogeneic and syngeneic stem cell transplantation using transgenic, human CD4, murine CD4, HLA-DR3 mice. Methodology/Principal Findings: Bone marrow cells were harvested from C57Bl/6 and Balb/c wild-type mice, expanded to NA-BMCs for 4 days and characterized by flow cytometry before transplantation in lethally irradiated recipient mice. Chimerism was detected using flow cytometry for MHC-I (H-2D [b], H-2K[d]), mu/huCD4, and huHLA-DR3). Culturing of bone marrow cells in a dexamethasone containing DMEM medium induced expansion of non adherent cells expressing CD11b, CD45, and CD90. Analysis of the CD45 showed depletion of CD4, CD8, CD19, and CD117 cells. Expanded syngeneic and allogeneic NA-BMCs were transplanted into triple transgenic mice. Syngeneic NA-BMCs protected 83% of mice from death (n = 8, CD4 donor chimerism of 5.8±2.4% [day 40], P<.001). Allogeneic NA-BMCs preserved 62.5% (n = 8) of mice from death without detectable hematopoietic donor chimerism. Transplantation of syngeneic bone marrow cells preserved 100%, transplantation of allogeneic bone marrow cells 33% of mice from death. Conclusions/Significance: NA-BMCs triggered endogenous hematopoiesis and induced faster recovery compared to bone marrow controls. These findings may be of relevance in the refinement of strategies in the treatment of hematological malignancies. © 2009 Fricke et al.
Description: This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Sponsor: This study was supported in part by research funding from German Federal Ministry for Education and Research. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
Version: Published
DOI: 10.1371/journal.pone.0006157
URI: https://dspace.lboro.ac.uk/2134/16435
Publisher Link: http://dx.doi.org/10.1371/journal.pone.0006157
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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