PMID- 19801979 OWN - NLM STAT- MEDLINE DCOM- 20091130 LR - 20211020 IS - 1546-1718 (Electronic) IS - 1061-4036 (Linking) VI - 41 IP - 11 DP - 2009 Nov TI - DNA methylation protects hematopoietic stem cell multipotency from myeloerythroid restriction. PG - 1207-15 LID - 10.1038/ng.463 [doi] AB - DNA methylation is a dynamic epigenetic mark that undergoes extensive changes during differentiation of self-renewing stem cells. However, whether these changes are the cause or consequence of stem cell fate remains unknown. Here, we show that alternative functional programs of hematopoietic stem cells (HSCs) are governed by gradual differences in methylation levels. Constitutive methylation is essential for HSC self-renewal but dispensable for homing, cell cycle control and suppression of apoptosis. Notably, HSCs from mice with reduced DNA methyltransferase 1 activity cannot suppress key myeloerythroid regulators and thus can differentiate into myeloerythroid, but not lymphoid, progeny. A similar methylation dosage effect controls stem cell function in leukemia. These data identify DNA methylation as an essential epigenetic mechanism to protect stem cells from premature activation of predominant differentiation programs and suggest that methylation dynamics determine stem cell functions in tissue homeostasis and cancer. FAU - Broske, Ann-Marie AU - Broske AM AD - Max Delbruck Center for Molecular Medicine, Berlin, Germany. FAU - Vockentanz, Lena AU - Vockentanz L FAU - Kharazi, Shabnam AU - Kharazi S FAU - Huska, Matthew R AU - Huska MR FAU - Mancini, Elena AU - Mancini E FAU - Scheller, Marina AU - Scheller M FAU - Kuhl, Christiane AU - Kuhl C FAU - Enns, Andreas AU - Enns A FAU - Prinz, Marco AU - Prinz M FAU - Jaenisch, Rudolf AU - Jaenisch R FAU - Nerlov, Claus AU - Nerlov C FAU - Leutz, Achim AU - Leutz A FAU - Andrade-Navarro, Miguel A AU - Andrade-Navarro MA FAU - Jacobsen, Sten Eirik W AU - Jacobsen SE FAU - Rosenbauer, Frank AU - Rosenbauer F LA - eng GR - G0501838/MRC_/Medical Research Council/United Kingdom GR - G0701761/MRC_/Medical Research Council/United Kingdom GR - G0801073/MRC_/Medical Research Council/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20091004 PL - United States TA - Nat Genet JT - Nature genetics JID - 9216904 RN - EC 2.1.1.37 (DNA (Cytosine-5-)-Methyltransferase 1) RN - EC 2.1.1.37 (DNA (Cytosine-5-)-Methyltransferases) SB - IM CIN - Nat Genet. 2009 Nov;41(11):1164-6. PMID: 19862008 MH - Animals MH - Cell Differentiation MH - Cell Lineage MH - Cell Survival MH - DNA (Cytosine-5-)-Methyltransferase 1 MH - DNA (Cytosine-5-)-Methyltransferases/genetics/metabolism MH - *DNA Methylation MH - *Epigenesis, Genetic MH - Erythroid Cells/*cytology/*metabolism MH - Gene Expression Regulation MH - Hematopoiesis MH - Hematopoietic Stem Cells/*cytology/metabolism MH - Homeostasis MH - Leukemia/metabolism MH - Mice MH - Multipotent Stem Cells/*cytology/metabolism MH - Neoplastic Stem Cells/metabolism EDAT- 2009/10/06 06:00 MHDA- 2009/12/16 06:00 CRDT- 2009/10/06 06:00 PHST- 2009/04/03 00:00 [received] PHST- 2009/08/25 00:00 [accepted] PHST- 2009/10/06 06:00 [entrez] PHST- 2009/10/06 06:00 [pubmed] PHST- 2009/12/16 06:00 [medline] AID - ng.463 [pii] AID - 10.1038/ng.463 [doi] PST - ppublish SO - Nat Genet. 2009 Nov;41(11):1207-15. doi: 10.1038/ng.463. Epub 2009 Oct 4.