WIMM PI Curriculum Vitae Personal Data Name Nationality Email Thomas Milne Canadian thomas.milne@imm.ox.ac.uk Present Position 2010 – present Group Leader, MRC Molecular Haematology Unit (WIMM) Previous Positions Nov.2004 – Nov 2010 Postdoctoral Fellow, Dr. C. David Allis, Lab of Chromatin Biology The Rockefeller University, NY, NY Sept. 2001 – Nov 2004 Ph.D., awarded May 2005, Supervisor: Dr. Hugh Brock University of British Columbia, Vancouver, B.C., Co-supervisor: Dr. Jay Hess, University of Pennsylvania, Philadelphia, PA Mar 1 2000 – Aug 31 2001 Lab Technician, Dr. Jay Hess, University of Pennsylvania, Dept. Pathology and Lab medicine. June 1 1998 – Dec 31 1999 Lab Technician, Dr. Hugh Brock, Zoology, UBC; Dr. Vett Lloyd, University of Dalhousie; Dr. T.A. Grigliatti, Zoology, UBC. 1995 – 1998 M.Sc., awarded May 1998, Supervisor: Dr. Hugh Brock University of British Columbia, Vancouver, B.C. 1995 B.Sc. Genetics, 1995, University of British Columbia, Vancouver, B.C. Research Achievements My early interests lead me towards the field of epigenetics with a very specific interest in chromatin structure and cancer biology. Epigenetics is described as the study of heritable changes in gene expression that are not due to modifications in the DNA sequence. Posttranslational modifications of histone proteins are considered to be one of the epigenetic mechanisms that multicellular organisms use in order to guarantee tight spatial and temporal expression of key genes during development and differentiation. These modifications include "marks" such as phosphorylation (P), acetylation (Ac), methylation (Me, which can be added as a mono (1), di (2) or tri (3) methyl mark) and ubiquitination (Ub) which function by recruiting and/or stabilizing specific effector proteins (also referred to as “reader” proteins). During my Masters degree with Dr. Hugh Brock, we showed that the polycomb group (PcG) protein Additional Sex Combs (Asx, aka ASXL, a gene commonly mutated in acute leukaemias in humans) was functionally linked with activity of trithorax group (TrxG) proteins. This led directly to my PhD work with Dr. Hugh Brock and Dr. Jay Hess (as my cosupervisor) on the human homolog of the Drosophila Trx protein, MLL. We found that the MLL SET domain has histone 3 lysine 4 (H3K4) methyltransferase activity that is essential for its function in maintaining target gene activation. We also found that in leukaemia, MLL fusion proteins increase methylation of H3K79 on target genes in vivo. H3K79 methylation at HOX genes has subsequently been recognized as a hallmark of MLL leukaemias. During my postdoc in Dr. C. David Allis’ lab we showed that recruitment of MLL is a complex “multivalent engagement” process where no single interaction is necessary or sufficient. As a group leader at the WIMM, our work has continued on understanding the molecular basis of MLL leukaemogenesis. Lay Summary of Research Despite progress in treating many cancers, children and adults with mutations in the Mixed Lineage Leukaemia (MLL) gene still have very poor survival rates. This is likely due to the fact that MLL is a master regulator that modifies the “epigenetic” information content of a cell. Epigenetics is often defined as altering the inherited gene expression patterns of a cell without altering the underlying DNA sequence. Thus epigenetic information is not stored in the DNA itself, but in specialized proteins called histones. It is becoming clear not only that aberrant epigenetic changes are common in many human diseases such as leukaemia, but that these changes by their very nature are reversible. A great number of epigenetic cell memory proteins that have been implicated in human disease have also turned out to be enzymes that are involved in “writing”, “erasing” or “reading” histone modifications. Effective therapies are likely to require a cocktail of different inhibitors and will therefore depend on a clear understanding of how multiple epigenetic proteins cooperate in disease progression. Readers, writers and erasers are excellent candidates for the development of targeted therapies that focus on specific activities. The goals of the lab are to understand the molecular details of how MLL leukaemias rewrite the epigenetic information content of the cell, and to cooperate with chemists and structural biologists to develop inhibitors that may one day allow us to develop specialized drugs that will stop MLL leukaemias from growing. All Publications Over the Past 5 Years Wilkinson A.C.*, Ballabio E.*,Geng H., North P., Tapia M., Kerry J., Biswas D., Roeder RG, Allis C.D., Melnick A., de Bruijn M.F.T.R. and Milne T.A. (2013) RUNX1 Is a Key Target in t(4;11) Leukemias that Contributes to Gene Activation through an AF4-MLL Complex Interaction. Cell Rep, 3, 116-127. Ballabio E., Milne T.A. (2012) Molecular and epigenetic mechanisms of MLL1 in human leukaemogenesis. Cancers, 4, 904-944. Geng, H.; Brennan, S.; Milne, T.A.; Chen, W.-Y.; Li, Y.; Hurtz, C.; Kweon, S.-M.; Zickl, L.; Shojaee, S.; Huang, C., et al., (2012) Integrative epigenomic analysis identifies biomarkers and therapeutic targets in adult b-acute lymphoblastic leukemia. Cancer Discovery, 2, 1004-1023. Akalin A., Garrett-Bakelman F.E., Kormaksson M., Busuttil J., Zhang L., Khrebtukova I., Milne T.A., Huang Y., Biswas D., Hess J.L., Allis C.D., Roeder R.G., Valk P.J.M., Löwenberg B., Delwel R., Fernandez H.F., Paietta E., Tallman M.S., Schroth G.P., Mason C.E., Melnick A. and Figueroa M.E. (2012) Base-pair resolution DNA methylation sequencing reveals profoundly divergent epigenetic landscapes in Acute Myeloid Leukemia PLoS Genet, 8, e1002781 Kowalczyk M. S., Hughes J.R., Garrick D., Lynch M.D., Sharpe J.A., Sloane-Stanley J.A., McGowan S.J., de Gobbi M., Hosseini M., Vernimmen D., Brown J.M., Gray N.E., Collavin L., Gibbons R.J., Flint J., Taylor S., Buckle V.J., Milne T.A., Wood W.G. & Higgs D.R. (2012) Intragenic enhancers act as alternative promoters. Mol Cell, 45, 447458. Biswas, D., Milne, T.A., Basrur, V., Kim, J., Elenitoba-Johnson, K.S., Allis, C.D. & Roeder, R.G. (2011) Function of leukemogenic mixed lineage leukemia 1 (MLL) fusion proteins through distinct partner protein complexes. Proc Natl Acad Sci U S A, 108, 15751-15756. Ruthenburg, A.J., Li, H., Milne, T.A., Dewell, S., McGinty, R.K., Yuen, M., Ueberheide, B., Dou, Y., Muir, T.W., Patel, D.J. & Allis, C.D. (2011) Recognition of a Mononucleosomal Histone Modification Pattern by BPTF via Multivalent Interactions. Cell, 145, 692-706. Milne, T.A., Kim, J., Wang, G.G., Stadler, S.C., Basrur, V., Whitcomb, S.J., Wang, Z., Ruthenburg, A.J., Elenitoba-Johnson, K.S., Roeder, R.G. & Allis, C.D. (2010) Multiple interactions recruit MLL1 and MLL1 fusion proteins to the HOXA9 locus in leukemogenesis. Mol Cell, 38, 853-863. Wang, Z., Song, J., Milne, T.A., Wang, G.G., Li, H., Allis, C.D. & Patel, D.J. (2010) Pro isomerization in MLL1 PHD3-bromo cassette connects H3K4me readout to CyP33 and HDAC-mediated repression. Cell, 141, 1183-1194. Ferris, A.L., Wu, X., Hughes, C.M., Stewart, C., Smith, S.J., Milne, T.A., Wang, G.G., Shun, M.C., Allis, C.D., Engelman, A. & Hughes, S.H. (2010) Lens epithelium-derived growth factor fusion proteins redirect HIV-1 DNA integration. Proc Natl Acad Sci U S A, 107, 3135-3140. Hunter, R.G., McCarthy, K.J., Milne, T.A., Pfaff, D.W. & McEwen, B.S. (2009) Regulation of hippocampal H3 histone methylation by acute and chronic stress. Proc Natl Acad Sci U S A, 106, 20912-20917. Milne, T.A., Zhao, K. & Hess, J.L. (2009) Chromatin immunoprecipitation (ChIP) for analysis of histone modifications and chromatin-associated proteins. Methods Mol Biol, 538, 409423. Kim, J., Guermah, M., McGinty, R.K., Lee, J.S., Tang, Z., Milne, T.A., Shilatifard, A., Muir, T.W. & Roeder, R.G. (2009) RAD6-Mediated transcription-coupled H2B ubiquitylation directly stimulates H3K4 methylation in human cells. Cell, 137, 459-471. Caslini, C., Yang, Z., El-Osta, M., Milne, T.A., Slany, R.K. & Hess, J.L. (2007) Interaction of MLL amino terminal sequences with menin is required for transformation. Cancer Res, 67, 7275-7283. Ten Key Publications Throughout your Career Milne, T.A., Kim, J., Wang, G.G., Stadler, S.C., Basrur, V., Whitcomb, S.J., Wang, Z., Ruthenburg, A.J., Elenitoba-Johnson, K.S., Roeder, R.G. & Allis, C.D. (2010) Multiple interactions recruit MLL1 and MLL1 fusion proteins to the HOXA9 locus in leukemogenesis. Mol Cell, 38, 853-863. Dou, Y., Milne, T.A., Ruthenburg, A.J., Lee, S., Lee, J.W., Verdine, G.L., Allis, C.D. & Roeder, R.G. (2006) Regulation of MLL1 H3K4 methyltransferase activity by its core components. Nat Struct Mol Biol, 13, 713-719. Wysocka, J., Swigut, T., Xiao, H., Milne, T.A., Kwon, S.Y., Landry, J., Kauer, M., Tackett, A.J., Chait, B.T., Badenhorst, P., Wu, C. & Allis, C.D. (2006) A PHD finger of NURF couples histone H3 lysine 4 trimethylation with chromatin remodelling. Nature, 442, 8690. Milne, T.A., Martin, M.E., Brock, H.W., Slany, R.K. & Hess, J.L. (2005) Leukemogenic MLL fusion proteins bind across a broad region of the Hox a9 locus, promoting transcription and multiple histone modifications. Cancer Res, 65, 11367-11374. Dou, Y., Milne, T.A., Tackett, A.J., Smith, E.R., Fukuda, A., Wysocka, J., Allis, C.D., Chait, B.T., Hess, J.L. & Roeder, R.G. (2005) Physical association and coordinate function of the H3 K4 methyltransferase MLL1 and the H4 K16 acetyltransferase MOF. Cell, 121, 873-885. Wysocka, J., Swigut, T., Milne, T.A., Dou, Y., Zhang, X., Burlingame, A.L., Roeder, R.G., Brivanlou, A.H. & Allis, C.D. (2005) WDR5 associates with histone H3 methylated at K4 and is essential for H3 K4 methylation and vertebrate development. Cell, 121, 859-872. Milne, T.A., Hughes, C.M., Lloyd, R., Yang, Z., Rozenblatt-Rosen, O., Dou, Y., Schnepp, R.W., Krankel, C., Livolsi, V.A., Gibbs, D., Hua, X., Roeder, R.G., Meyerson, M. & Hess, J.L. (2005) Menin and MLL cooperatively regulate expression of cyclin-dependent kinase inhibitors. Proc Natl Acad Sci U S A, 102, 749-754. Martin, M.E., Milne, T.A., Bloyer, S., Galoian, K., Shen, W., Gibbs, D., Brock, H.W., Slany, R. & Hess, J.L. (2003) Dimerization of MLL fusion proteins immortalizes hematopoietic cells. Cancer Cell, 4, 197-207. Milne, T.A., Briggs, S.D., Brock, H.W., Martin, M.E., Gibbs, D., Allis, C.D. & Hess, J.L. (2002) MLL targets SET domain methyltransferase activity to Hox gene promoters. Mol Cell, 10, 1107-1117. Markers of Esteem Canadian Institutes of Health Research (CIHR) Fellowship July1/05 to July1/08 Current Grant Support 1) MRC Unit Award 2012-2017 £29M 2) Children with Cancer UK, Epigenetic mechanisms of MLL-AF4 leukaemogenesis: £48,104