WIMM PI Curriculum Vitae Personal Data Name Nationality Email Tudor Alexandru Fulga ROMANIAN tudor.fulga@imm.ox.ac.uk Present Position 2014-present Associate Professor, MRC Senior research fellow - WIMM, Radcliffe Department of Medicine, University of Oxford Previous Positions 2011-2014 Group Leader, MRC Senior research fellow - WIMM, Radcliffe Department of Medicine, University of Oxford 2008-2011 Instructor in Cell Biology – Department of Cell Biology, Harvard Medical School, Boston MA 2004-2007 Postdoctoral Fellow – Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston MA. John Douglas French Alzheimer's Foundation Postdoctoral Fellowship 1998-2003 Ph.D. (PhD title awarded in December 2001) – Structural Biology Programme/Developmental Biology Programme, EMBL Heidelberg, Germany. Louis Jeantet PhD Fellow (two fellowships awarded every year for students across East Europe). 1996-1998 Research Assistant (Undergraduate) – Institute of Biochemistry, Bucharest Romania 1992-1997 B.Sc. Genetics and Molecular Biology – University of Bucharest, Bucharest, Romania RESEARCH ACHIEVEMENTS During my PhD studies, I initially investigated the process of protein translocation across the ER and elucidated for the first time the role of the heterodimeric signal recognition particle receptor subunit (EMBO J 2001; Science, 2002). Following completion of this work, I focused my attention on defining the cellular and molecular events controlling the process of cell migration during development. This research led to the discovery of long cellular extensions (LCE), a remarkable novel mechanism of force generation in invasive cell migration (Nat Cell Biol., 2002; Nature, 2007). Later, as a postdoctoral fellow at Harvard Medical School, I investigated the molecular mechanisms underlying neurodegeneration in Alzheimer’s disease. Amongst several important scientific contributions to this field, my research delineated the actin cytoskeleton as a critical mediator of neurodegeneration (Nature Cell Biology, 2006; PLoS Genet. 2010). This discovery defined a novel mechanism of cytoskeletal cross talk in neurons, and had potential clinical and therapeutic relevance for Alzheimer’s disease (scientific and media coverage in Nature Reviews Neuroscience (2007), Nature Cell Biology (2007) and HMS Focus Magazine (2007)). After completing my postdoctoral studies, I was offered a prestigious Harvard Medical School Instructorship in Cell Biology. Coincidently, around the same time I became fascinated by the rapidly growing field of non-coding regulatory RNAs. While the critical role of miRNAs in development and disease became undisputed, understanding their biological functions lagged behind, primarily due to limitations in the technologies available for in vivo analysis. To address this challenge, I pioneered together with Prof. David Van Vactor a highly versatile in vivo transgenic technology for conditional knock-down of miRNA activity with precise spatial-temporal resolution (Nature Methods 2009; scientific and media coverage in Nature Methods (2009) and HMS Focus Magazine (2010)). The conceptual framework of this technology (competitive inhibition) subsequently became the method of choice in the field for defining tissue-specific miRNA functions in complex biological systems, and uncovering intricate genetic interactions between miRNAs and other genes. Additionally, it opened up endless possibilities for dissecting microRNA regulated pathogenic mechanisms in Drosophila models for human diseases. WHAT ARE THE FUTURE AIMS OF YOUR CURRENT GROUP? While tremendous progress has been made in understanding the complexity and importance of non-coding regulatory RNAs, it is clear that the most significant insights still lie ahead. Our goal is to decipher the role of non-coding RNAs in development and human diseases, uncover the molecular mechanisms governing miRNA target recognition and silencing, and engineer innovative RNA-based synthetic devices for diagnostic and therapeutic applications. Our research programme is divided in three interconnected modules: 1. miRNA BIOLOGY. The goal of this research is to elucidate the function of miRNAs in animal development and understand their contribution to certain human pathological conditions. These studies take advantage of a multi-disciplinary experimental platform combining versatile transgenic technologies, RNA biochemistry, molecular biology, bioinformatics, advanced imaging, highthroughput genomic tools, and cutting-edge genome engineering technologies. We are particularly interested in deciphering the role of miRNAs in nervous system development and pathogenesis. Processes under investigation include neurogenesis, maintaining structural integrity of neuronal projections, and the molecular mechanisms underlying axonal collapse following traumatic nerve injury. The fundamental knowledge acquired in these studies may engender new therapeutic strategies for situations whereby axons have not been transected but are at risk of undergoing degeneration, such as inflammatory neuropathies, demyelinating conditions (multiple sclerosis), and certain neurodegenerative disorders. 2. SYNTHETIC BIOLOGY. Cellular reprogramming using synthetic gene networks offers much promise as a novel therapeutic tool. Underpinning this idea is the need to generate versatile synthetic devices capable of precise assessment of cellular state and regulation of therapeutic actuation. A central theme in our group is to repurpose the functionality contained within RNA molecules to develop molecular devices capable of rewiring cellular behaviour. Attaining this goal requires a rational design process and in vitro/in vivo evolution strategies, to assemble RNA-based logic gates into biological computers activated by endogenous triggers. The resulting synthetic devices have potential for widespread applications ranging from basic tools for miRNA research, to components in targeted diagnostic and therapeutic strategies. This work falls under the broad spectrum of synthetic biology, encompassing fields as diverse as biomedical sciences, engineering and computer sciences. 3. GENOME ENGINEERING. The recent advent of sophisticated genome engineering technologies such as programmable RNA-guided endonucleases (CRISPR/Cas9), revolutionized biomedical research and created an unprecedented exploratory landscape for basic research, disease studies and therapeutic applications. Taking advantage of these technologies, we are developing novel experimental frameworks for multiplex high-throughput analysis of miRNA activity in intact biological system. These studies promise to engender unprecedented insight into the principles and rules governing miRNA target selection in vivo, thus addressing a fundamental, yet unmet, dimension in miRNA biology. This will enable us for the first time to understand, predict and assess the impact of miRNAs in the context of a complete gene regulatory network. Our long-term goal is to elucidate the entire landscape of human miRNA networks in normal versus disease states, and apply this knowledge to the design of novel miRNA-based therapeutic strategies. In parallel, we continue to develop new dimensions of genome engineering technologies aimed to advance their in vivo versatility. HOW DO THESE AIMS CONTRIBUTE TO THE UNDERSTANDING AND/OR MANAGEMENT OF HUMAN DISEASE Because miRNAs are much smaller, less antigenic and display a stereotypical mechanism of action compared to protein-coding genes, the field of miRNA-based therapeutics is rapidly gaining momentum. Both miRNA replacement and systemic miRNA inhibition therapies have now entered clinical trials for a variety of human diseases. For example, the antiviral drug miRavirsen, designed to recognize and sequester the liver-expressed miR-122, showed unprecedented efficacy in Phase 2a clinical trials against Hepatitis C infection. Similarly, MRX34 (a mimic of the tumor suppressor miR-34) recently entered Phase 1 clinical trial in patients with unresectable primary liver cancer or solid cancers with liver involvement. In contrast to the potentially harmful viral-based delivery methods used for protein-coding genes, miRNA therapeutic agents can be relatively safely delivered by direct packaging into lipid-based nanoparticles. Although miRNAs appear to have superior therapeutic potential, their broad transition into clinic remains a challenging task. Following WIMM’s philosophy of using basic science research to impact medicine and human health, our research programme aims to generate a more accurate picture on the role of miRNAs in development, physiology and pathogenesis of human diseases, with the ultimate goal of translating these discoveries into novel diagnostic and therapeutic strategies. Similarly, the goal of our synthetic biology programme is to develop RNA-based devices suitable for gene and cell therapy applications in cancer and infectious diseases. Finally, the recent breakthrough in genome engineering technologies (CRISPR/Cas9) marked the beginning of a new era of scientific discovery and molecular medicine applications. Our group is at the forefront of genome engineering in the UK, being one of the first in Oxford to develop and apply revolutionary designer nuclease technologies (TALENs and CRISPR/Cas9) towards exploring biological and disease processes. The relatively straightforward design and streamlined construction protocols developed for these technologies, together with continuous improvements to increase on-target efficiency and reduce off-target effects, now offer a realistic opportunity for genome engineering-based therapeutic applications. Our team is an integral part of a strategic consortium whose remit is to develop protocols for correcting monogenic mutations in HSPCs, as a promising avenue for treatment of hematological disorders by autologous transplantation. LAY SUMMARY OF RESEARCH Every cell within our body carries the same genetic information, yet following iterative developmental transitions hundreds of morphologically and functionally distinct cell types are generated. At the foundation of this fascinating cellular diversification, lies a milieu of finely orchestrated and sophisticated regulatory programmes, which act to turn on or off thousands of genes (~20,000 in humans) with minute spatial and temporal precision. Errors in these programmes can give rise to developmental defects and many human diseases including cancer. For many years, it was thought that RNAs only function as structural scaffolds and messengers transferring genetic information from DNA to proteins. This perspective was drastically changed following the seminal discovery of RNA interference and endogenous non-coding regulatory RNAs. This discovery revolutionized our view on the regulation of gene expression networks, setting an important milestone in molecular, developmental and disease biology. While tremendous progress has been made in understanding the complexity and importance of non-coding RNAs, it is clear that the most significant insights still lie ahead. Amongst non-coding RNAs, miRNAs provide an essential gene regulatory layer through binding and tuning the expression of numerous cellular RNAs via defined “miRNA response elements” (MREs). Central to understanding the cellular networks regulated by miRNAs, is identification of their direct targets in vivo. This knowledge is also essential when anticipating the broad consequences of manipulating miRNA function for therapeutic intervention. Our research programme aims to decipher the role of non-coding regulatory RNAs in development and human diseases, understand the molecular mechanisms underlying their activity, and engineer innovative RNA-based synthetic devices for diagnostic and therapeutic applications. All Publications Over the Past 5 Years Fulga T.A.,# et al. Unbiased screening by conditional competitive inhibition reveals novel functions of conserved Drosophila miRNAs during development and adult behaviour. Developmental Cell. Under revision. Tan J.Y., et al. Crosstalking noncoding RNAs contribute to cell-specific neurodegeneration in Spinocerebellar ataxia type 7. (2014) Nature Structural & Molecular Biology. In press. Bassett A.R., Azzam G., Wheatley L., Tibbit, C., Rajakumar T., McGowan S., Stanger N., Ewels P.A., Taylor S., Ponting C.P., Liu J.L., Sauka-Spengler T., Fulga T.A. Understanding functional miRNA-target interactions in vivo by site-specific genome engineering. (2014) Nature Communications. Aug 19;5:4640. Marler K.J., et al. (2014) BDNF Promotes Axon Branching of Retinal Ganglion Cells via miRNA132 and p250GAP. Journal of Neuroscience 34(3):969-79. Li W., et al. (2013) microRNA-276a functions in Ellipsoid Body and Mushroom Body neurons for naive and conditioned olfactory avoidance in Drosophila. Journal of Neuroscience 33(13):582133. Bejarano F., et al (2012) A genomewide transgenic resource for conditional expression of Drosophila microRNAs. Development, Aug;139(15) Pathania M., et al (2012) miR-132 Enhances Dendritic Morphogenesis, Spine Density, Synaptic Integration, and Survival of Newborn Olfactory Bulb Neurons. PLos One, 7(5):e38174. Khurana V., Merlo P., DuBoff B., Fulga T.A., Sharp K.A., Campbell S.D., Gotz J., and Feany M.B. (2011) A critical neuroprotective role for an ATM-dependent DNA damage checkpoint. Aging Cell, 11(2):360-2. Khurana V.,‡ Elson-Schwab I.,‡ Fulga T.A.,‡ Mulkearns M., and Feany M.B. (2010) Lysosomal proliferation is involved with caspase-cleavage of tau and promotes neurodegeneration in a Drosophila model of tauopathy. PLoS Genetics, 15;6(7). ‡ Equal contribution Loya C.M., Van Vactor D., and Fulga T.A. (2010) Understanding neuronal connectivity through the post-transcriptional toolkit. Genes and Development, 24(7):625-35 Loya C.M., Lu C.S., Van Vactor D.,# and Fulga T.A.# (2009) Transgenic microRNA inhibition with spatiotemporal specificity in intact organisms Nature Methods, 6(12):897-903. Chang H., et al. (2008) Modeling Spinal Muscular Atrophy in Drosophila PLoS ONE 15;3(9):e3209 Fulga T.A.# and Van Vactor D.# (2008) Synapses and growth cones on two sides of a highwire Neuron 57(3):339-44. Bianco A., et al (2007) Two distinct modes of guidance signaling during collective migration. Nature 448 (7151):362-5. Ten Key Publications Throughout your Career Tan J.Y., et al. Crosstalking noncoding RNAs contribute to cell-specific neurodegeneration in Spinocerebellar ataxia type 7. (2014) Nature Structural & Molecular Biology. In press. Bassett A.R., Azzam G., Wheatley L., Tibbit, C., Rajakumar T., McGowan S., Stanger N., Ewels P.A., Taylor S., Ponting C.P., Liu J.L., Sauka-Spengler T., Fulga T.A. Understanding functional miRNA-target interactions in vivo by site-specific genome engineering. (2014) Nature Communications. Aug 19;5:4640. Khurana V.,‡ Elson-Schwab I.,‡ Fulga T.A.,‡ Mulkearns M., and Feany M.B. (2010) Lysosomal proliferation is involved with caspase-cleavage of tau and promotes neurodegeneration in a Drosophila model of tauopathy. PLoS Genetics, 15;6(7). ‡ Equal contribution Loya C.M., Lu C.S., Van Vactor D.,# and Fulga T.A.# (2009) Transgenic microRNA inhibition with spatiotemporal specificity in intact organisms Nature Methods, 6(12):897-903. Steinhilb M.L., Dias-Santagata D.,‡, Fulga T.A.,‡, Felch D.L., and Feany M.B. (2007) Tau phosphorylation sites work in concert to promote neurotoxicity in vivo Mol. Biol. Cell 18(12):50608 ‡ Equal contribution Bianco A., Cliffe A., Poukkula M., Mathieu J., Luque C.M., Fulga T.A., and Rørth P. (2007) Two distinct modes of guidance signaling during collective migration. Nature 448 (7151):362-5. Fulga T.A.,# Elson-Schwab I., Khurana V., Steinhilb M.L., Spires T.L., Hyman B.T., and Feany M.B.# (2006) Abnormal bundling and accumulation of F-actin mediates tau-induced neuronal degeneration in vivo. Nature Cell Biology, 9(2):139-48. # Corresponding author Fulga T.A. and Rørth P. (2002) Invasive cell migration is initiated by guided growth of long cellular extensions. Nature Cell Biology 4(9):715-719 Pool M.R., Stumm J., Fulga T.A., Sinning I. and Dobberstein B. (2002) Three stages in Signal Recognition Particle interaction with the Ribosome Science 297(5585):1345-8 Fulga T.A., Sinning I., Dobberstein B. and Pool M.R. (2001) release from SRP with Ribosome binding to the Translocon. EMBO J. 20(9):2338-47 Markers of Esteem 2011 MRC Senior Research Fellowship 2010 HMS/HSMD Postdoctoral Fellow Travel Award 2009 F-1000 faculty member 2008 Keystone Symposia Scholarship 2007 BWH & HMS Award for outstanding achievement in science research 2006 John Douglas French Alzheimer's Foundation Postdoctoral Fellowship 2005 Harvard University Award of Distinction in Teaching 2002 Best Poster Prize – Santa Cruz Conference on Developmental Biology 1998 Louis Jeantet PhD Fellowship for East Europe (EMBL Heidelberg) Current Grant Support MRC Senior Research Fellowship 2011-2016 £ 1,100,688 MRC Confidence in Concept Award 2013-2014 £ 80,640 NDM/WT Research Fund £ 9,076 BBSRC Research Project Grant 2014-2016 £ 482,98