Advanced

Long-term maintenance of hematopoietic stem cells does not require contact with embryo-derived stromal cells in cocultures

Oostendorp, Robert A J; Robin, Catherine; Steinhoff, Christine; Marz, Stefanie; Brauer, Rosalinde; Nuber, Ulrike LU ; Dzierzak, Elaine A and Peschel, Christian (2005) In Stem Cells 23(6). p.842-851
Abstract
We recently established that two midgestation-derived stromal clones--UG26-1B6, urogenital ridge-derived, and EL08-1D2, embryonic liver-derived--support the maintenance of murine adult bone marrow and human cord blood hematopoietic repopulating stem cells (HSCs). In this study, we investigate whether direct HSC-stroma contact is required for this stem cell maintenance. Adult bone marrow ckit+ Ly-6C- side population (K6-SP) cells and stromal cells were cocultured under contact or noncontact conditions. These experiments showed that HSCs were maintained for at least 4 weeks in culture and that direct contact between HSCs and stromal cells was not required. To find out which factors might be involved in HSC maintenance, we compared the gene... (More)
We recently established that two midgestation-derived stromal clones--UG26-1B6, urogenital ridge-derived, and EL08-1D2, embryonic liver-derived--support the maintenance of murine adult bone marrow and human cord blood hematopoietic repopulating stem cells (HSCs). In this study, we investigate whether direct HSC-stroma contact is required for this stem cell maintenance. Adult bone marrow ckit+ Ly-6C- side population (K6-SP) cells and stromal cells were cocultured under contact or noncontact conditions. These experiments showed that HSCs were maintained for at least 4 weeks in culture and that direct contact between HSCs and stromal cells was not required. To find out which factors might be involved in HSC maintenance, we compared the gene expression profile of EL08-1D2 and UG26-1B6 with four HSC-nonsupportive clones. We found that EL08-1D2 and UG26-1B6 both expressed 21 genes at a higher level, including the putative secreted factors fibroblast growth factor-7, insulin-like growth factor-binding proteins 3 and 4, pleiotrophin, pentaxin-related, and thrombospondin 2, whereas 11 genes, including GPX-3 and HSP27, were expressed at a lower level. In summary, we show for the first time long-term maintenance of adult bone marrow HSCs in stroma noncontact cultures and identify some secreted molecules that may be involved in this support. (Less)
Please use this url to cite or link to this publication:
author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Hematopoiesis, Hematopoietic stem cells, AGM, Transwell, Microenvironment
in
Stem Cells
volume
23
issue
6
pages
842 - 851
publisher
AlphaMed Press
external identifiers
  • pmid:15917480
  • scopus:20344370721
ISSN
1549-4918
DOI
10.1634/stemcells.2004-0120
language
English
LU publication?
no
id
c16eca61-083d-4c01-9c80-1e1fcb238b7a (old id 1134222)
date added to LUP
2008-06-18 11:51:04
date last changed
2017-07-23 04:37:21
@article{c16eca61-083d-4c01-9c80-1e1fcb238b7a,
  abstract     = {We recently established that two midgestation-derived stromal clones--UG26-1B6, urogenital ridge-derived, and EL08-1D2, embryonic liver-derived--support the maintenance of murine adult bone marrow and human cord blood hematopoietic repopulating stem cells (HSCs). In this study, we investigate whether direct HSC-stroma contact is required for this stem cell maintenance. Adult bone marrow ckit+ Ly-6C- side population (K6-SP) cells and stromal cells were cocultured under contact or noncontact conditions. These experiments showed that HSCs were maintained for at least 4 weeks in culture and that direct contact between HSCs and stromal cells was not required. To find out which factors might be involved in HSC maintenance, we compared the gene expression profile of EL08-1D2 and UG26-1B6 with four HSC-nonsupportive clones. We found that EL08-1D2 and UG26-1B6 both expressed 21 genes at a higher level, including the putative secreted factors fibroblast growth factor-7, insulin-like growth factor-binding proteins 3 and 4, pleiotrophin, pentaxin-related, and thrombospondin 2, whereas 11 genes, including GPX-3 and HSP27, were expressed at a lower level. In summary, we show for the first time long-term maintenance of adult bone marrow HSCs in stroma noncontact cultures and identify some secreted molecules that may be involved in this support.},
  author       = {Oostendorp, Robert A J and Robin, Catherine and Steinhoff, Christine and Marz, Stefanie and Brauer, Rosalinde and Nuber, Ulrike and Dzierzak, Elaine A and Peschel, Christian},
  issn         = {1549-4918},
  keyword      = {Hematopoiesis,Hematopoietic stem cells,AGM,Transwell,Microenvironment},
  language     = {eng},
  number       = {6},
  pages        = {842--851},
  publisher    = {AlphaMed Press},
  series       = {Stem Cells},
  title        = {Long-term maintenance of hematopoietic stem cells does not require contact with embryo-derived stromal cells in cocultures},
  url          = {http://dx.doi.org/10.1634/stemcells.2004-0120},
  volume       = {23},
  year         = {2005},
}