Abstract
Arterioles and sinusoids of the bone marrow (BM) are accompanied by stromal cells that express nerve/glial antigen 2 (NG2) and leptin receptor (LepR), and constitute specialized niches that regulate quiescence and proliferation of haematopoietic stem cells (HSCs). However, how niche cells differentially regulate HSC functions remains unknown. Here, we show that the effects of cytokines regulating HSC functions are dependent on the producing cell sources. Deletion of chemokine C-X-C motif ligand 12 (Cxcl12) or stem cell factor (Scf) from all perivascular cells marked by nestin-GFP dramatically depleted BM HSCs. Selective Cxcl12 deletion from arteriolar NG2+ cells, but not from sinusoidal LepR+ cells, caused HSC reductions and altered HSC localization in BM. By contrast, deletion of Scf in LepR+ cells, but not NG2+ cells, led to reductions in BM HSC numbers. These results uncover distinct contributions of cytokines derived from perivascular cells in separate vascular niches to HSC maintenance.
| Original language | English |
|---|---|
| Pages (from-to) | 214-223 |
| Number of pages | 10 |
| Journal | Nature Cell Biology |
| Volume | 19 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Mar 1 2017 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Cell Biology
Cite this
Differential cytokine contributions of perivascular haematopoietic stem cell niches. / Asada, Noboru; Kunisaki, Yuya; Pierce, Halley; Wang, Zichen; Fernandez, Nicolas F.; Birbrair, Alexander; Ma'ayan, Avi; Frenette, Paul S.
In: Nature Cell Biology, Vol. 19, No. 3, 01.03.2017, p. 214-223.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Differential cytokine contributions of perivascular haematopoietic stem cell niches
AU - Asada, Noboru
AU - Kunisaki, Yuya
AU - Pierce, Halley
AU - Wang, Zichen
AU - Fernandez, Nicolas F.
AU - Birbrair, Alexander
AU - Ma'ayan, Avi
AU - Frenette, Paul S.
PY - 2017/3/1
Y1 - 2017/3/1
N2 - Arterioles and sinusoids of the bone marrow (BM) are accompanied by stromal cells that express nerve/glial antigen 2 (NG2) and leptin receptor (LepR), and constitute specialized niches that regulate quiescence and proliferation of haematopoietic stem cells (HSCs). However, how niche cells differentially regulate HSC functions remains unknown. Here, we show that the effects of cytokines regulating HSC functions are dependent on the producing cell sources. Deletion of chemokine C-X-C motif ligand 12 (Cxcl12) or stem cell factor (Scf) from all perivascular cells marked by nestin-GFP dramatically depleted BM HSCs. Selective Cxcl12 deletion from arteriolar NG2+ cells, but not from sinusoidal LepR+ cells, caused HSC reductions and altered HSC localization in BM. By contrast, deletion of Scf in LepR+ cells, but not NG2+ cells, led to reductions in BM HSC numbers. These results uncover distinct contributions of cytokines derived from perivascular cells in separate vascular niches to HSC maintenance.
AB - Arterioles and sinusoids of the bone marrow (BM) are accompanied by stromal cells that express nerve/glial antigen 2 (NG2) and leptin receptor (LepR), and constitute specialized niches that regulate quiescence and proliferation of haematopoietic stem cells (HSCs). However, how niche cells differentially regulate HSC functions remains unknown. Here, we show that the effects of cytokines regulating HSC functions are dependent on the producing cell sources. Deletion of chemokine C-X-C motif ligand 12 (Cxcl12) or stem cell factor (Scf) from all perivascular cells marked by nestin-GFP dramatically depleted BM HSCs. Selective Cxcl12 deletion from arteriolar NG2+ cells, but not from sinusoidal LepR+ cells, caused HSC reductions and altered HSC localization in BM. By contrast, deletion of Scf in LepR+ cells, but not NG2+ cells, led to reductions in BM HSC numbers. These results uncover distinct contributions of cytokines derived from perivascular cells in separate vascular niches to HSC maintenance.
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UR - http://www.scopus.com/inward/citedby.url?scp=85014219397&partnerID=8YFLogxK
U2 - 10.1038/ncb3475
DO - 10.1038/ncb3475
M3 - Article
C2 - 28218906
AN - SCOPUS:85014219397
VL - 19
SP - 214
EP - 223
JO - Nature Cell Biology
JF - Nature Cell Biology
SN - 1465-7392
IS - 3
ER -