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Article: IDH1(R132H) mutation increases murine haematopoietic progenitors and alters epigenetics

TitleIDH1(R132H) mutation increases murine haematopoietic progenitors and alters epigenetics
Authors
Issue Date2012
Citation
Nature, 2012, v. 488, n. 7413, p. 656-659 How to Cite?
AbstractMutations in the IDH1 and IDH2 genes encoding isocitrate dehydrogenases are frequently found in human glioblastomas and cytogenetically normal acute myeloid leukaemias (AML). These alterations are gain-of-function mutations in that they drive the synthesis of the oncometabolite R-2-hydroxyglutarate (2HG). It remains unclear how IDH1 and IDH2 mutations modify myeloid cell development and promote leukaemogenesis. Here we report the characterization of conditional knock-in (KI) mice in which the most common IDH1 mutation, IDH1(R132H), is inserted into the endogenous murine Idh1 locus and is expressed in all haematopoietic cells (Vav-KI mice) or specifically in cells of the myeloid lineage (LysM-KI mice). These mutants show increased numbers of early haematopoietic progenitors and develop splenomegaly and anaemia with extramedullary haematopoiesis, suggesting a dysfunctional bone marrow niche. Furthermore, LysM-KI cells have hypermethylated histones and changes to DNA methylation similar to those observed in human IDH1-or IDH2-mutant AML. To our knowledge, our study is the first to describe the generation and characterization of conditional IDH1(R132H)-KI mice, and also the first report to demonstrate the induction of a leukaemic DNA methylation signature in a mouse model. Our report thus sheds light on the mechanistic links between IDH1 mutation and human AML. © 2012 Macmillan Publishers Limited. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/292722
ISSN
2023 Impact Factor: 50.5
2023 SCImago Journal Rankings: 18.509
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorSasaki, Masato-
dc.contributor.authorKnobbe, Christiane B.-
dc.contributor.authorMunger, Joshua C.-
dc.contributor.authorLind, Evan F.-
dc.contributor.authorBrenner, Dirk-
dc.contributor.authorBrüstle, Anne-
dc.contributor.authorHarris, Isaac S.-
dc.contributor.authorHolmes, Roxanne-
dc.contributor.authorWakeham, Andrew-
dc.contributor.authorHaight, Jillian-
dc.contributor.authorYou-Ten, Annick-
dc.contributor.authorLi, Wanda Y.-
dc.contributor.authorSchalm, Stefanie-
dc.contributor.authorSu, Shinsan M.-
dc.contributor.authorVirtanen, Carl-
dc.contributor.authorReifenberger, Guido-
dc.contributor.authorOhashi, Pamela S.-
dc.contributor.authorBarber, Dwayne L.-
dc.contributor.authorFigueroa, Maria E.-
dc.contributor.authorMelnick, Ari-
dc.contributor.authorZúñiga-Pflücker, Juan Carlos-
dc.contributor.authorMak, Tak W.-
dc.date.accessioned2020-11-17T14:57:05Z-
dc.date.available2020-11-17T14:57:05Z-
dc.date.issued2012-
dc.identifier.citationNature, 2012, v. 488, n. 7413, p. 656-659-
dc.identifier.issn0028-0836-
dc.identifier.urihttp://hdl.handle.net/10722/292722-
dc.description.abstractMutations in the IDH1 and IDH2 genes encoding isocitrate dehydrogenases are frequently found in human glioblastomas and cytogenetically normal acute myeloid leukaemias (AML). These alterations are gain-of-function mutations in that they drive the synthesis of the oncometabolite R-2-hydroxyglutarate (2HG). It remains unclear how IDH1 and IDH2 mutations modify myeloid cell development and promote leukaemogenesis. Here we report the characterization of conditional knock-in (KI) mice in which the most common IDH1 mutation, IDH1(R132H), is inserted into the endogenous murine Idh1 locus and is expressed in all haematopoietic cells (Vav-KI mice) or specifically in cells of the myeloid lineage (LysM-KI mice). These mutants show increased numbers of early haematopoietic progenitors and develop splenomegaly and anaemia with extramedullary haematopoiesis, suggesting a dysfunctional bone marrow niche. Furthermore, LysM-KI cells have hypermethylated histones and changes to DNA methylation similar to those observed in human IDH1-or IDH2-mutant AML. To our knowledge, our study is the first to describe the generation and characterization of conditional IDH1(R132H)-KI mice, and also the first report to demonstrate the induction of a leukaemic DNA methylation signature in a mouse model. Our report thus sheds light on the mechanistic links between IDH1 mutation and human AML. © 2012 Macmillan Publishers Limited. All rights reserved.-
dc.languageeng-
dc.relation.ispartofNature-
dc.titleIDH1(R132H) mutation increases murine haematopoietic progenitors and alters epigenetics-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1038/nature11323-
dc.identifier.pmid22763442-
dc.identifier.scopuseid_2-s2.0-84865520089-
dc.identifier.volume488-
dc.identifier.issue7413-
dc.identifier.spage656-
dc.identifier.epage659-
dc.identifier.eissn1476-4687-
dc.identifier.isiWOS:000308095100056-
dc.identifier.issnl0028-0836-

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