Self-renewal of a purified Tie2+ hematopoietic stem cell population relies on mitochondrial clearance.
Self-renewal of a purified Tie2+ hematopoietic stem cell population relies on mitochondrial clearance.
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DOI:
10.1126/science.aaf5530
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发表时间:
2016-12-02
期刊:
影响因子:
--
通讯作者:
Ito K
中科院分区:
文献类型:
--
作者:
Ito K;Turcotte R;Cui J;Zimmerman SE;Pinho S;Mizoguchi T;Arai F;Runnels JM;Alt C;Teruya-Feldstein J;Mar JC;Singh R;Suda T;Lin CP;Frenette PS;Ito K
A single hematopoietic stem cell (HSC) is capable of reconstituting hematopoiesis and maintaining homeostasis by balancing self-renewal and cell differentiation. The mechanisms of HSC division balance, however, are not yet defined. Here we demonstrate, by characterizing at the single-cell level a purified and minimally heterogeneous murine Tie2+ HSC population, that these top hierarchical HSCs preferentially undergo symmetric divisions. The induction of mitophagy, a quality control process in mitochondria, plays an essential role in self-renewing expansion of Tie2+ HSCs. Activation of the PPAR (peroxisome proliferator–activated receptor)–fatty acid oxidation pathway promotes expansion of Tie2+ HSCs through enhanced Parkin recruitment in mitochondria. These metabolic pathways are conserved in human TIE2+ HSCs. Our data thus identify mitophagy as a key mechanism of HSC expansion and suggest potential methods of cell-fate manipulation through metabolic pathways.
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DOI:
10.1038/nrm3772
发表时间:
2014-04
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
通讯作者:
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影响因子:
64.8
作者:
通讯作者:
--
影响因子:
82.9
作者:
Ito, Keisuke;Carracedo, Arkaitz;Weiss, Dror;Arai, Fumio;Ala, Ugo;Avigan, David E.;Schafer, Zachary T.;Evans, Ronald M.;Suda, Toshio;Lee, Chih-Hao;Pandolfi, Pier Paolo
通讯作者:
Pandolfi, Pier Paolo
影响因子:
64.8
作者:
Acar M;Kocherlakota KS;Murphy MM;Peyer JG;Oguro H;Inra CN;Jaiyeola C;Zhao Z;Luby-Phelps K;Morrison SJ
通讯作者:
Morrison SJ
DOI:
10.1126/science.1260384
发表时间:
2015-04-17
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Katajisto P;Döhla J;Chaffer CL;Pentinmikko N;Marjanovic N;Iqbal S;Zoncu R;Chen W;Weinberg RA;Sabatini DM
通讯作者:
Sabatini DM