Abstract
Ten-Eleven-Translocation 2 (TET2) is an enzyme that catalyzes the conversion of 5-methylcytosine into 5-hydroxymethylcytosine (5-hmC) and thereby alters the epigenetic state of DNA; somatic loss-of-function mutations of TET2 are frequently observed in patients with diverse myeloid malignancies. To study the function of TET2 in vivo, we analyzed Ayu17-449 (TET2trap) mice, in which a gene trap insertion in intron 2 of TET2 reduces TET2 mRNA levels to about 20% of that found in wild-type (WT) mice. TET2trap/trap mice were born at Mendelian frequency but died at a high rate by postnatal day 3, indicating the essential role of TET2 for survival. Loss of TET2 results in an increase in the number of hematopoietic stem cells (HSCs)/progenitors in the fetal liver, and TET2trap/trap HSCs exhibit an increased self-renewal ability in vivo. In competitive transplantation assays, TET2trap/trap HSCs possess a competitive growth advantage over WT HSCs. These data indicate that TET2 has a critical role in survival and HSC homeostasis.
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References
Baxter EJ, Scott LM, Campbell PJ, East C, Fourouclas N, Swanton S et al. Acquired mutation of the tyrosine kinase JAK2 in human myeloproliferative disorders. Lancet 2005; 365: 1054–1061.
James C, Ugo V, Le Couedic JP, Staerk J, Delhommeau F, Lacout C et al. A unique clonal JAK2 mutation leading to constitutive signalling causes polycythaemia vera. Nature 2005; 434: 1144–1148.
Kralovics R, Passamonti F, Buser AS, Teo SS, Tiedt R, Passweg JR et al. A gain-of-function mutation of JAK2 in myeloproliferative disorders. N Engl J Med 2005; 352: 1779–1790.
Levine RL, Wadleigh M, Cools J, Ebert BL, Wernig G, Huntly BJ et al. Activating mutation in the tyrosine kinase JAK2 in polycythemia vera, essential thrombocythemia, and myeloid metaplasia with myelofibrosis. Cancer Cell 2005; 7: 387–397.
Shide K, Shimoda HK, Kumano T, Karube K, Kameda T, Takenaka K et al. Development of ET, primary myelofibrosis and PV in mice expressing JAK2 V617F. Leukemia 2008; 22: 87–95.
Tiedt R, Hao-Shen H, Sobas MA, Looser R, Dirnhofer S, Schwaller J et al. Ratio of mutant JAK2-V617F to wild-type Jak2 determines the MPD phenotypes in transgenic mice. Blood 2008; 111: 3931–3940.
Xing S, Wanting TH, Zhao W, Ma J, Wang S, Xu X et al. Transgenic expression of JAK2V617F causes myeloproliferative disorders in mice. Blood 2008; 111: 5109–5117.
Akada H, Yan D, Zou H, Fiering S, Hutchison RE, Mohi MG . Conditional expression of heterozygous or homozygous Jak2V617F from its endogenous promoter induces a polycythemia vera-like disease. Blood 2010; 115: 3589–3597.
Mullally A, Lane SW, Ball B, Megerdichian C, Okabe R, Al-Shahrour F et al. Physiological Jak2V617F expression causes a lethal myeloproliferative neoplasm with differential effects on hematopoietic stem and progenitor cells. Cancer Cell 2010; 17: 584–596.
Kralovics R, Teo SS, Li S, Theocharides A, Buser AS, Tichelli A et al. Acquisition of the V617F mutation of JAK2 is a late genetic event in a subset of patients with myeloproliferative disorders. Blood 2006; 108: 1377–1380.
Levine RL, Belisle C, Wadleigh M, Zahrieh D, Lee S, Chagnon P et al. X-inactivation-based clonality analysis and quantitative JAK2V617F assessment reveal a strong association between clonality and JAK2V617F in PV but not ET/MMM, and identifies a subset of JAK2V617F-negative ET and MMM patients with clonal hematopoiesis. Blood 2006; 107: 4139–4141.
Theocharides A, Boissinot M, Girodon F, Garand R, Teo SS, Lippert E et al. Leukemic blasts in transformed JAK2-V617F-positive myeloproliferative disorders are frequently negative for the JAK2-V617F mutation. Blood 2007; 110: 375–379.
Delhommeau F, Dupont S, Della Valle V, James C, Trannoy S, Masse A et al. Mutation in TET2 in myeloid cancers. N Engl J Med 2009; 360: 2289–2301.
Jankowska AM, Szpurka H, Tiu RV, Makishima H, Afable M, Huh J et al. Loss of heterozygosity 4q24 and TET2 mutations associated with myelodysplastic/myeloproliferative neoplasms. Blood 2009; 113: 6403–6410.
Langemeijer SM, Kuiper RP, Berends M, Knops R, Aslanyan MG, Massop M et al. Acquired mutations in TET2 are common in myelodysplastic syndromes. Nature genetics 2009; 41: 838–842.
Tefferi A . Novel mutations and their functional and clinical relevance in myeloproliferative neoplasms: JAK2, MPL, TET2, ASXL1, CBL, IDH and IKZF1. Leukemia 2010; 24: 1128–1138.
Abdel-Wahab O, Mullally A, Hedvat C, Garcia-Manero G, Patel J, Wadleigh M et al. Genetic characterization of TET1, TET2, and TET3 alterations in myeloid malignancies. Blood 2009; 114: 144–147.
Tahiliani M, Koh KP, Shen Y, Pastor WA, Bandukwala H, Brudno Y et al. Conversion of 5-methylcytosine to 5-hydroxymethylcytosine in mammalian DNA by MLL partner TET1. Science 2009; 324: 930–935.
Ko M, Huang Y, Jankowska AM, Pape UJ, Tahiliani M, Bandukwala HS et al. Impaired hydroxylation of 5-methylcytosine in myeloid cancers with mutant TET2. Nature 2010; 468: 839–843.
Koh KP, Yabuuchi A, Rao S, Huang Y, Cunniff K, Nardone J et al. Tet1 and Tet2 regulate 5-hydroxymethylcytosine production and cell lineage specification in mouse embryonic stem cells. Cell stem cell 2011; 8: 200–213.
Tang H, Araki K, Li Z, Yamamura K . Characterization of Ayu17-449 gene expression and resultant kidney pathology in a knockout mouse model. Transgenic Res 2008; 17: 599–608.
Moran-Crusio K, Reavie L, Shih A, Abdel-Wahab O, Ndiaye-Lobry D, Lobry C et al. Tet2 loss leads to increased hematopoietic stem cell self-renewal and myeloid transformation. Cancer Cell 2011; 20: 11–24.
Quivoron C, Couronne L, Della Valle V, Lopez CK, Plo I, Wagner-Ballon O et al. TET2 inactivation results in pleiotropic hematopoietic abnormalities in mouse and is a recurrent event during human lymphomagenesis. Cancer Cell 2011; 20: 25–38.
Li Z, Cai X, Cai CL, Wang J, Zhang W, Petersen BE et al. Deletion of Tet2 in mice leads to dysregulated hematopoietic stem cells and subsequent development of myeloid malignancies. Blood 2011; 118: 4509–4518.
Ko M, Bandukwala HS, An J, Lamperti ED, Thompson EC, Hastie R et al. Ten-Eleven-Translocation 2 (TET2) negatively regulates homeostasis and differentiation of hematopoietic stem cells in mice. Proc Natl Acad Sci USA 2011; 108: 14566–14571.
Li Y, Huang TT, Tang H, Yamamura KI, Pu XY . Gene expression profiling: identification of genes with altered expression in Ayu17-449 knockout mice. Genet Mol Res 2011; 10: 1533–1544.
James C, Mazurier F, Dupont S, Chaligne R, Lamrissi-Garcia I, Tulliez M et al. The hematopoietic stem cell compartment of JAK2V617F-positive myeloproliferative disorders is a reflection of disease heterogeneity. Blood 2008; 112: 2429–2438.
Acknowledgements
We thank M Matsushita, T Shinmori, E Torii for their technical assistance. This work was supported in part by Grants-in-Aid for Scientific Research (numbers 20591137, 2110490, 20890176, 23591397) from the Ministry of Education, Science, Sports, and Culture in Japan, and a Grant-in-Aid from the Tokyo Biochemical Research Foundation, Tokyo, Japan.
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Shide, K., Kameda, T., Shimoda, H. et al. TET2 is essential for survival and hematopoietic stem cell homeostasis. Leukemia 26, 2216–2223 (2012). https://doi.org/10.1038/leu.2012.94
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DOI: https://doi.org/10.1038/leu.2012.94
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