Reprogramming committed murine blood cells to induced hematopoietic stem cells with defined factors.
Reprogramming committed murine blood cells to induced hematopoietic stem cells with defined factors.
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DOI:
10.1016/j.cell.2014.04.006
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发表时间:
2014-04-24
期刊:
影响因子:
64.5
通讯作者:
Rossi DJ
中科院分区:
文献类型:
--
作者:
Riddell J;Gazit R;Garrison BS;Guo G;Saadatpour A;Mandal PK;Ebina W;Volchkov P;Yuan GC;Orkin SH;Rossi DJ
Hematopoietic stem cells (HSCs) sustain blood formation throughout life and are the functional units of bone marrow transplantation. We show that transient expression of six transcription factors RUNX1T1, HLF, LMO2, PRDM5, PBX1, and ZFP37 imparts multi-lineage transplantation potential onto otherwise committed lymphoid and myeloid progenitors, and myeloid effector cells. Inclusion of MYC-N and MEIS1, and use of polycistronic viruses increase reprogramming efficacy. The reprogrammed cells, designated induced-HSCs (iHSCs), possess clonal multi-lineage differentiation potential, reconstitute stem/progenitor compartments, and are serially transplantable. Single-cell analysis revealed that iHSCs derived under optimal conditions exhibit a gene expression profile that is highly similar to endogenous HSCs. These findings demonstrate that expression of a set of defined factors is sufficient to activate the gene networks governing HSC functional identity in committed blood cells. Our results raise the prospect that blood cell reprogramming may be a strategy for derivation of transplantable stem cells for clinical application.
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