Epigenetic Memory Underlies Cell-Autonomous Heterogeneous Behavior of 
Hematopoietic Stem Cells

Yu , Vionnie W. C.; Yusuf , Rushdia Z.; Oki , Toshihiko; Wu, Juwell; Saez, Borja; Wang, Xin; Cook , Colleen; Baryawno , Ninib; Ziller , Michael J.; Lee , Eunjung; Gu, Hongcang; Meissner, Alexander; Lin, Charles P.; Kharchenko, Peter V.; Scadden , David T.

doi:10.1016/j.cell.2016

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Epigenetic Memory Underlies Cell-Autonomous Heterogeneous Behavior of Hematopoietic Stem Cells

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Meissner, Alexander
Dept. of Genome Regulation (Head: Alexander Meissner), Max Planck Institute for Molecular Genetics, Max Planck Society;
Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA;

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Citation

Yu, V. W. C., Yusuf, R. Z., Oki, T., Wu, J., Saez, B., Wang, X., et al. (2016). Epigenetic Memory Underlies Cell-Autonomous Heterogeneous Behavior of Hematopoietic Stem Cells. Cell, 167(5): e17, pp. 1310-1322. doi:10.1016/j.cell.2016.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002C-DF30-5

Abstract

Stem cells determine homeostasis and repair of many tissues and are increasingly recognized as functionally heterogeneous. To define the extent of—and molecular basis for—heterogeneity, we overlaid functional, transcriptional, and epigenetic attributes of hematopoietic stem cells (HSCs) at a clonal level using endogenous fluorescent tagging. Endogenous HSC had clone-specific functional attributes over time in vivo. The intra-clonal behaviors were highly stereotypic, conserved under the stress of transplantation, inflammation, and genotoxic injury, and associated with distinctive transcriptional, DNA methylation, and chromatin accessibility patterns. Further, HSC function corresponded to epigenetic configuration but not always to transcriptional state. Therefore, hematopoiesis under homeostatic and stress conditions represents the integrated action of highly heterogeneous clones of HSC with epigenetically scripted behaviors. This high degree of epigenetically driven cell autonomy among HSCs implies that refinement of the concepts of stem cell plasticity and of the stem cell niche is warranted.