Distinct Bone Marrow Sources of Pleiotrophin Control Hematopoietic Stem Cell Maintenance and Regeneration.
Distinct Bone Marrow Sources of Pleiotrophin Control Hematopoietic Stem Cell Maintenance and Regeneration.
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多叶毒素控制造血干细胞维持和再生的独特骨髓来源。
DOI:
10.1016/j.stem.2018.07.003
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发表时间:
2018-09-06
期刊:
影响因子:
23.9
通讯作者:
Chute JP
中科院分区:
文献类型:
--
作者:
Himburg HA;Termini CM;Schlussel L;Kan J;Li M;Zhao L;Fang T;Sasine JP;Chang VY;Chute JP
Bone marrow (BM) perivascular stromal cells and vascular endothelial cells (ECs) are essential for hematopoietic stem cell (HSC) maintenance, but the roles of distinct niche compartments during HSC regeneration are less understood. Here we show that Leptin receptor-expressing (LepR+) BM stromal cells and ECs dichotomously regulate HSC maintenance and regeneration via secretion of pleiotrophin (PTN). BM stromal cells are the key source of PTN during steady-state hematopoiesis because its deletion from stromal cells, but not hematopoietic cells, osteoblasts, or ECs, depletes the HSC pool. Following myelosuppressive irradiation, PTN expression is increased in bone marrow endothelial cells (BMECs), and PTN+ ECs are more frequent in the niche. Moreover, deleting Ptn from ECs impairs HSC regeneration whereas Ptn deletion from BM stromal cells does not. These findings reveal dichotomous and complementary regulation of HSC maintenance and regeneration by BM stromal cells and ECs. Himburg et al. demonstrate dichotomous regulation of blood stem cell maintenance and regeneration by BM stromal cells and ECs. Utilizing conditional genetic models, the authors show that blood stem cell maintenance requires PTN secretion by BM stromal cells, whereas blood stem cell regeneration requires complementary PTN production by BMECs.
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影响因子:
82.9
作者:
通讯作者:
--
影响因子:
21.3
作者:
Asada N;Kunisaki Y;Pierce H;Wang Z;Fernandez NF;Birbrair A;Ma'ayan A;Frenette PS
通讯作者:
Frenette PS
影响因子:
24.5
作者:
Michelotti GA;Tucker A;Swiderska-Syn M;Machado MV;Choi SS;Kruger L;Soderblom E;Thompson JW;Mayer-Salman M;Himburg HA;Moylan CA;Guy CD;Garman KS;Premont RT;Chute JP;Diehl AM
通讯作者:
Diehl AM
影响因子:
64.8
作者:
Chen JY;Miyanishi M;Wang SK;Yamazaki S;Sinha R;Kao KS;Seita J;Sahoo D;Nakauchi H;Weissman IL
通讯作者:
Weissman IL
影响因子:
2.5
作者:
Alva, JA;Zovein, AC;Iruela-Arispe, ML
通讯作者:
Iruela-Arispe, ML