Hepatic thrombopoietin is required for bone marrow hematopoietic stem cell maintenance.
Hepatic thrombopoietin is required for bone marrow hematopoietic stem cell maintenance.
复制标题
DOI:
10.1126/science.aap8861
复制
发表时间:
2018-04-06
期刊:
影响因子:
--
通讯作者:
Ding L
中科院分区:
文献类型:
--
作者:
Decker M;Leslie J;Liu Q;Ding L
Hematopoietic stem cell (HSC) maintenance depends on extrinsic cues. Currently, only local signals arising from the bone marrow niche have been shown to maintain HSCs. However, it is not known whether systemic factors also sustain HSCs. We assessed the physiological source of thrombopoietin (TPO), a key cytokine required for maintaining HSCs. Using TpoDsRed-CreER knock-in mice, we showed that TPO is expressed by hepatocytes but not by bone marrow cells. Deletion of Tpo from hematopoietic cells, osteoblasts, or bone marrow mesenchymal stromal cells does not affect HSC number or function. However, when Tpo is deleted from hepatocytes, bone marrow HSCs are depleted. Thus, a cross-organ factor, circulating TPO made in the liver by hepatocytes, is required for bone marrow HSC maintenance. Our results demonstrate that systemic factors, in addition to the local niche, are a critical extrinsic component for HSC maintenance.
登录
查看更多内容
影响因子:
64.5
作者:
Scadden DT
通讯作者:
Scadden DT
影响因子:
20.3
作者:
Seo, Aaron;Ben-Harosh, Miri;Shimamura, Akiko
通讯作者:
Shimamura, Akiko
影响因子:
64.5
作者:
Kiel, MJ;Yilmaz, ÖH;Morrison, SJ
通讯作者:
Morrison, SJ
DOI:
10.1073/pnas.95.3.1195
发表时间:
1998-02-03
影响因子:
11.1
作者:
Kimura, S;Roberts, AW;Alexander, WS
通讯作者:
Alexander, WS
影响因子:
64.8
作者:
DESAUVAGE, FJ;HASS, PE;EATON, DL
通讯作者:
EATON, DL