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Funders:
Paul Hamlyn Foundation
The Wellcome Trust
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University College London
University of Leeds
Amounts:
£500 - £1,000
£1,000 - £5,000

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Results

Investigating the Structure of FcγRIIa and its Interactions within the Membrane 30 Sep 2018

Human Fcgamma receptors (FcgammaRs) are proteins found on the surface of immune cells. They bind to antibodies, which are produced by the body, in response to infection. Some antibodies produced recognise their own tissues and are found in many diseases, including rheumatoid arthritis and lupus. It has been shown that genetic changes in the FcgammaRs are found more frequently in rheumatoid arthritis sufferers compared to healthy individuals. This project will focus on FcgammaRIIa, which is present on cells which are responsible for the destruction of many antibody-bound objects. Through a combination of cutting edge techniques, spanning physics, biology, immunology and medicine, we will uncover fundamental information within this field. This information would aim to inform the production of effective therapies to treat diseases such as arthritis, which put a huge strain on the NHS every year.

Amount: £0
Funder: The Wellcome Trust
Recipient: University of Leeds

A structural investigation into the action of and resistance to ribosome-targeting antibiotics 30 Sep 2018

Antibiotics are crucial to modern medicine, allowing treatment of life-threatening bacterial infections and making many surgeries like transplantations possible. However, pathogenic bacteria are rapidly evolving to resist their effects. Protein synthesis is one of the main antibiotic targets in bacterial cells. I will use structural biology techniques, principally cryoEM and single particle image processing, to understand how both novel natural products and clinical antibiotics bind to the ribosome to bring about their inhibitory effects on protein synthesis. Furthermore, I will investigate the cause of toxicity of certain ribosome-binding antibiotics by examining how they bind to the mammalian mitochondrial ribosome. Finally, I will use a combination of cryoEM and protein X-ray crystallography to elucidate how certain ribosomal-protecting proteins form complexes with the ribosome in order to bring about antibiotic resistance. On an individual level, these studies will allow an assessment of the viability of novel natural products as suitable clinical antibiotics. More generally, they will contribute to our knowledge of how different classes of antibiotics target the ribosomes of pathogenic bacteria, and how these bacteria evolve resistance. This knowledge will help the development of methods to rationally design new ribosome-targeting antibiotics that are able to overcome or circumvent resistance.

Amount: £0
Funder: The Wellcome Trust
Recipient: University of Leeds

Complex Urban Systems for Sustainability and Health (London Hub) 30 Sep 2018

The London Hub for Urban Health, Sustainability and Equity aims to be the world’s foremost transdisciplinary hub for research, training and pubic engagement on urban health. It is founded on two constituent projects – Complex Urban Systems for Sustainability and Health (CUSSH) and Pathways to Equitable Healthy Cities (PEHC) – and involves leading London-based institutions and their global network of collaborating institutions. The Hub’s principal objective is to integrate and coordinate research and stakeholder engagement that support evidence-based policies aimed at improving population health, health equity and environmental sustainability in cities around the world. The Hub, and its projects, will achieve this objective through comparative studies that involve participatory research and coproduction of knowledge among academic researchers, policy makers and practitioners, and civil society; developing models for prospective policy evaluation and applying these models to data from our partner cities; and training the next generation of research and policy leaders in urban health, while establishing the foundations for sustaining and expanding the Hub beyond the Wellcome funding period. The CUSSH project focuses on how to transform cities to address vital environmental and population health imperatives, and entails partnership with the cities of London, Beijing, Kisumu, Nairobi, Ningbo and Rennes.

Amount: £5,150,000
Funder: The Wellcome Trust
Recipient: University College London

Effects of sex on metabolic homeostasis in old age 31 May 2018

The main aim of our research is to determine the differences in the lifespan and physiology of male and female Drosophila melanogaster in response to increased levels of sugar (sucrose) in the diet. Current human diets are detrimental to health and obesogenic. The health outcomes are dependent on the sex of the individual, however the molecular and physiological mechanisms are not understood. The results of our study will help establish a Drosophila model that can be used to understand how nutrition and sex interact, which might contribute to a healthier lifestyle choices in humans leading to healthy ageing. The effects of diet on lifespan and diet-induced obesity of the two sexes will be recorded, as well as the feeding behaviour using the proboscis extension assay and blue-food assay. Gut morphology/function will also be examined since the gut appears to underlie the different response of the sexes to increased dietary protein. In particular, we will focus on age-induced hyperplasia by determining the number of proliferating cells (stained with anti-phospho-Histone 3). We will also monitor gut function by assessing the leakiness of the gut using a blue food. Finally, statistical analysis using suitable regression models will be performed in R.

Amount: £0
Funder: The Wellcome Trust
Recipient: University College London

Functional characterization of a novel KMT2D-related developmental disorder 31 May 2018

The proposed research uses standard molecular biology, protein purification and biophysical structural analysis methods in a focused series of experiments that comprise a complete 6-week project. This builds on existing molecular genetics studies that have identified novel missense mutations in KMT2D (also known as MLL2) as the cause of a unique phenotype (renal tubular dysgenesis, choanal atresia and athelia). Previous studies have identified KMT2D mutations as a major cause of Kabuki syndrome, a comparatively common autosomal dominant congenital mental retardation syndrome. The missense mutations occur in a central region of the KMT2D protein (2841-3876) that does not have variants associated with Kabuki syndrome. This central region contains a series of coiled-coil domains that are likely to mediate protein-protein interactions. However, the effect of the missense mutations on KMT2D structure and interactions is completely unknown. This project will determine the structure-function relationships between KMT2D and a unique phenotype that are likely to be caused by altered protein-protein interactions, as well as describing the broader genotype-phenotype correlations in this important gene. The approach described in the proposal is the only tractable way to understand possible structure-function relationships, given the large size of the gene and encoded protein.

Amount: £0
Funder: The Wellcome Trust
Recipient: University of Leeds

Dynamical modelling of somatic genomes 28 Nov 2017

Cancers are complex and chaotic systems. It is becoming apparent that no two cells in a cancer are genetically identical or follow the same evolutionary trajectory. Chromosomal instability (CIN) is one way that cells generate this complexity and is a hallmark of all cancer and ageing. In cancer, it increases the level of variation available to cells and gives rise to intra-tumour genetic hetereogeneity, which makes the disease more agressive, drug tolerant, and harder to treat. We are still far from a complete understanding of how cells undergoing CIN evolve over time, in particular, we do not know how populations of cancer cells evolve and how selection acts to change these properties. Understanding this normal evolutionary behaviour will be key to separating the functional and non-functional aspects of intra-tumour heterogeneity. We will tackle this problem by understanding cancer as an emergent complex system, and use simple dynamic stochastic models to capture the essential biological features of the processes underlying CIN, including chromosome gain and loss, structural change, and genome doubling. We will use the vast amount of NGS data already available to fit these models using Bayesian inference and infer the evolutionary aspects of CIN in healthy and cancerous tissues.

Amount: £1,273,968
Funder: The Wellcome Trust
Recipient: University College London

Neuronal encoding of complex three-dimensional environments 31 May 2018

This proposed research intends to investigate the brain representation of complex, multilayered three-dimensional environments in free-roaming rodents by detecting electrical neuronal activities. With the assumption that the grid cell can form a lattice representation in a volumetric space, the main goal of this project is to test this hypothesis and construct more detailed mosaic neuronal models. From the previous experimental evidence, the grid cell plays a pivotal role in distance-measuring by forming a grid-like array on a flat surface, however, how this array is remodelled in vertical or tilled surface remains debatable. In this project, rats will be allowed to explore in a giant lattice model with options of climbing up or down, dwelling forwards or backwards while looking for rewards. The neuronal activities in rat's hippocampus will be collected, reconstructed into a 3D model. If the hypothesis is to be correct, the 3D cognition map is suggested to be a multiple evenly-spaced neuron filed distributed volumetrically (figure1, D and E). Otherwise, the field might be distributed in parallel columns vertical to the ground, as the extension of the 2D hexagonal array (figure 1, C).

Amount: £0
Funder: The Wellcome Trust
Recipient: University College London

Identification and Validation of the Determinants of Variation in T cell Immunity in Health and in Inherited Immunodeficiency Syndromes 30 Sep 2018

Vaccination is a powerful strategy to prevent infectious diseases, by stimulating our immune system to produce antibodies. However, vaccines have not been as successful in boosting immunity against infections that require a different defence called T-cells. This problem is exemplified by tuberculosis, which causes more deaths than any other infection despite the use of the Bacillus Calmette-Guérin (BCG) vaccine, because the protection provided by BCG is variable. I aim to understand why BCG only works in some people. I will investigate the idea that differences in T-cell activation in different people are responsible for differences in the protective effects of BCG. In healthy individuals, I will test T-cell activation in response to a general stimulus. Using these data, I will develop a mathematical model to understand how variation in T-cell responses comes about. I will then In BCG-vaccinate the same individuals and test if my model explains all the variability in responses to BCG and in T-cell control of tuberculosis. These experiments may reveal the molecular switches that are responsible for differences in BCG efficacy. By testing cells from patients with genetic abnormalities in some of these molecules, I will validate their role in providing effective T-cell immunity.

Amount: £0
Funder: The Wellcome Trust
Recipient: University College London

Investigating the role of mtch-1 in age-related proteostasis collapse 31 May 2018

The loss of protein homeostasis (proteostasis) is associated with many age-associated diseases, most notably Alzheimer’s disease, Parkinson’s disease, and Huntington’s disease. Despite this, the factors that control the vulnerability of cells to proteostasis collapse with age are poorly understood. Using the nematode worm Caenorhabditis elegans as a model system, we have identified the highly conserved gene mtch-1, as a new proteostasis regulator. mtch-1 encodes a mitochondrial outer membrane protein of unknown function, the knockdown of which, enhances resistance to environmental stress, maintains cytosolic proteostasis with age, and extends lifespan. However, it is unknown how these beneficial effects are mediated. This project will determine which protein quality control (PQC) components are necessary for mtch-1 to influence protein aggregation. We will use fluorescent reporters to determine the effects of mtch-1 on the activity of PQC pathways, and perform an RNA interference screen of known PQC components to determine which, if any, are necessary for the loss of mtch-1 to suppress protein aggregation. These experiments will allow us to build a picture of the previously unexplored link between mtch-1 and changes in cytosolic proteostasis with age, thereby highlighting a new aspect of PQC that could be manipulated to promote long-term health.

Amount: £0
Funder: The Wellcome Trust
Recipient: University College London

Somatic adaptation and sex differences in human endocrine development and disease 28 Nov 2017

Our work focusses on new genetic mechanisms affecting human adrenal and reproductive function. We have recently described a multisystem growth restriction disorder caused by gain-of-function of SAMD9, where somatic adaptation can modify phenotype and mask detection of the genotype. In parallel, we developed a transcriptomic atlas of human adrenal and gonad development, mapping out sex-specific effects of organogenesis. We now plan to develop these insights to address several related fundamental questions: 1) How extensive is SAMD9 variability in endocrine and growth phenotypes and does dynamic somatic adaptation play a wider role in human disease mechanisms; 2) What are the dynamic roles of sex chromosomes and sex hormones in development (focussing on brain, adrenal gland and genital tubercle), and how does genetic variability of the X-chromosome contribute to phenotype in Turner syndrome (45,X); 3) Can we apply these concepts to discover new genetic mechanisms underlying adrenal and reproductive disorders. This work would provide novel disease models and approaches to analysis, could link the dynamics of development and sex-differences to common conditions (e.g. neurodevelopment, stress, early-onset hypertension), and would continue to elucidate the causes of human adrenal and reproductive disorders, with important implications for personalised management and development of new therapies.

Amount: £1,561,134
Funder: The Wellcome Trust
Recipient: University College London

Revealing how extracellular matrix glycans define chemokine gradients 31 May 2018

The diffusion of chemokines in the extracellular matrix is a requirement for the formation of chemokine gradients that guide immune cell migration to sites of inflammation, and controlled by matrix glycans of the glycosaminoglycan family. The focus of this research is to use well-defined models of the extracellular matrix to probe the interaction between the chemokine CXCL12 and the glycosaminoglycan heparan sulphate, and how this defines the mobility of CXCL12. The first key goal of the project is to design and produce a fluorescently-tagged CXCL12 mutant with modulated glycosaminoglycan binding which can be compared against the wild-type chemokine and other mutants already available. The second key goal is to use the biophysical method of fluorescence recovery after photobleaching to characterise the differential diffusion of mutant and wild-type CXCL12 in glycosaminoglycan-rich matrices. This project thus combines biochemistry and biophysics to gain a better understanding of the molecular mechanisms underpinning the formation of chemokine gradients in extracellular matrix.

Amount: £0
Funder: The Wellcome Trust
Recipient: University of Leeds

Investigation of the structural and conformational preferences of ribosome-bound nascent chains using NMR paramagnetic relaxation enhancement measurements 31 May 2018

Co-translational folding is best studied by providing high-resolution structural descriptions of nascent polypeptides (NCs) as they emerge from the ribosome. This is achieved by producing snapshots of the process using ribosome-associated-nascent chains(RNCs) and developing 3D structural models by combining NMR spectroscopy as experimental restraints within MD simulations. The emerging NC is a dynamic entity that searches conformational space in its quest for acquiring its correct structure; it undergoes both transient interactions with itself and the external surface of its ribosome. This Scholarship aims to develop novel distance-based, PRE (paramagnetic-relaxation-enhancement) NMR measurements of RNCs to evaluate these transient processes. Over 8 weeks, this project will enable us to develop strategies to selectively label RNCs with the MTSL "spin-labels" at a single cysteine site, by adapting well-established RNC technology. We will study two RNCs "snapshots" which capture early folding transition for an immunoglobulin protein. We will characterise the structural properties of the modified RNCs using 2D NMR spectroscopy, and quantitate possible transient interactions/compaction events by collecting PRE measurements. We will also initiate MD simulations with the new experimental restraints that have been acquired. These approaches will advance our current 3D structural models to dissect further molecular details of co-translational protein folding.

Amount: £0
Funder: The Wellcome Trust
Recipient: University College London

Integrated interdisciplinary approaches to design new anti-bacterials with novel mechanisms of action to tackle antimicrobial resistance in Tuberculosis 30 Sep 2018

Tuberculosis (TB) remains a serious threat to global health. The World Health Organisation estimate that 10.4 million new cases were contracted in 2015, and that over 500,000 of those cases were resistant to at least one of the antibiotics currently used to treat this condition. The spread of such resistance is a serious concern and as a result there is a need for the development of new drugs to combat TB. Recent work has identified two classes of molecule which have promising anti-tubercular properties: tetrahydroisoquinolines and non-steroidal anti-inflammatory drugs. My project will focus on the development of new anti-bacterials from these classes of molecule while exploring the reasons behind their anti-tubercular properties. This will be achieved through a combination of chemistry and molecular microbiology, making use of both laboratory and computational techniques.

Amount: £0
Funder: The Wellcome Trust
Recipient: University College London

Co-evolution of tumour mutational and CD4 T-cell differentiation landscapes 30 Sep 2018

Lung cancer is the second most commonly diagnosed cancer in the UK and the greatest cause of cancer-related death. A type of this disease called non-small cell lung cancer (NSCLC) accounts for the majority (85%) of cases. T-lymphocyte cells (T-cells) of the immune system patrol the body and can recognise and destroy cancer cells by recognising mutated proteins (neoantigens) on them. Despite this, the majority of patients with advanced lung cancer die of the disease, indicating the ineffective function of the immune system. In particular, little is known about the role of a particular group of immune cells called T-helper cells that are thought to be important. In chronic infections where T-cells are constantly exposed to their targets, they become less responsive as younger cells are driven to turn into later ones more rapidly. As younger cells are lost, the body's ability to fight the infection reduces. In cancer, it is possible that mutations drive a similar problem. Using lung cancer specimens from patients on a clinical trial and animal models of cancer, we propose to study the question of whether and how mutations can paralyse the ability of T-helper cells to fight the disease.

Amount: £0
Funder: The Wellcome Trust
Recipient: University College London

Assessment of placental function in complicated pregnancy using advanced MRI 04 Dec 2017

Placental insufficiency underlies the major obstetric syndromes of fetal growth restriction (FGR) and pre-eclampsia and accounts for one third of stillbirths in high-income countries. There is an unmet clinical need for a method to properly characterise placental perfusion and determine if and when a placenta is likely to fail. The objective of this work is to develop an imaging method to assess placental function in complicated pregnancy. This work will help us to better understand placenta function in FGR. This project will compare placenta properties from appropriately developing and early-onset growth-restricted pregnancies to understand the differences in the appearance of the placenta in FGR. The key goals of this work are to assess a novel Magnetic Resonance (MR) Imaging method to measure fetal and maternal placental perfusion. This technique describes an MR signal that models the blood flow properties as they change between the maternal and fetal sides of the placenta. to link this to relevant clinical information including clinical ultrasound markers and fetal MRI. to use these results to establish a comprehensive imaging project for the placenta by providing an in vivo measurement of placenta function to complement information from ultrasound imaging and ex utero microCT.

Amount: £99,804
Funder: The Wellcome Trust
Recipient: University College London

Specialised Ribosomes – Does KSHV modulate ribosome composition 30 Sep 2018

Historically, ribosomes have been viewed as unchanged homogeneous units with no intrinsic regulatory capacity for mRNA translation. Recent research is shifting this paradigm of ribosome function to one where ribosomes may exert a regulatory function or specificity in translational control. Emerging evidence has identified heterogeneity of ribosome composition in specific cell populations, leading to the concept of specialised ribosomes. Specialised ribosomes may therefore exhibit control and regulation over the translation of specific mRNAs, resulting in a substantial impact on how the genomic template is translated into functional proteins. Due to the emerging concept that cells can control the composition of ribosomes to regulate protein expression, it would seem highly likely that viruses could also manipulate host cell ribosome compositions to enhance the production of viral proteins. We have quantitative proteomic and ribosomal profiling data suggesting Kaposi's sarcoma-associated herpesvirus (KSHV) manipulates ribosomal biogenesis. Firstly, we will investigate changes in composition and stoichiometry of proteins within the ribosome, driven by KSHV. We will isolate ribosomal complexes by tandem affinity purification, during KSHV infection and analyse changes by LC-MS/MS and cryo-EM. We will elucidate how these changes exert ribosome-mediated specificity to promote KSHV lytic infection using a number of cellular and molecular techniques.

Amount: £0
Funder: The Wellcome Trust
Recipient: University of Leeds

UCL/WT Translational Partnership 2018 - Widening Participation and Enhancing Translational Culture 30 Sep 2018

The biomedical translational strategy of UCL and its partner hospitals is based upon harnessing the wealth of talent and ideas across disciplines to make a difference to patients and their families. The WT Translational Partnership Award supports the pursuit of excellence in the universities tripartite mission "Research, Education and Innovation" and will enhance the knowledge, culture and support available for translation: • Provide funding to develop pilot data enabling progression of projects to our internal Therapeutic Acceleration Fund. Aimed at encouraging Early Career Scientists to take the first step along the translational pathway (RESEARCH) • Enable a greater understanding of translation amongst early career researchers through a mixture of on-line training material and workshops (EDUCATION) • Supporting our Therapeutic Innovation Networks (TINs) in small molecule, biologics, cell, gene & regenerative medicine, devices, diagnostics and repurposing. These "early discovery therapeutic accelerators" will identify and address barriers encountered, share knowledge/best practice and use Industry expertise to progress specific projects (INNOVATION)

Amount: £1,000,000
Funder: The Wellcome Trust
Recipient: University College London

Behavioural and Histopathological Characterisation of APP-KI Alzheimer Mice Models 31 May 2018

The project would involve behavioural and histopathological studies of a mouse model of Alzheimer's Disease. The transgenic mouse, Amyloid Precursor Protein Knock-In (APP-KI) expresses human-like amyloid plaques in the absence of other APP fragments and, hence, represents the best APP model currently available. They will be injected with tau, in order to mimic the combination of pathological changes that occur in human Alzheimer's-disease-affected brains. The main goals of the project involve establishing the exact time-course over which the Alzheimer's-like phenotype develops, correlating the number of human-like amyloid plaques with the extent of the memory deficit in the APP-KI mice with and without tau, and finally establishing whether there is any underlying neuronal cell death in the tau-injected mice. The first four weeks of the project would involve a battery of behavioural tests to include Open Field activity, Novel Object Recognition, Object Location and spatial T-maze testing in order to identify behavioural changes/memory deficits in the APP-KI and the APP-KI + tau animals when compared to wild type litter-mates. Afterwards the animals would be sacrificed, their brains removed and sectioned. The brain sections would be stained and histopathological changes (e.g. amyloid plaque volume and tau filaments) correlated with behavioural changes.

Amount: £0
Funder: The Wellcome Trust
Recipient: University College London

Investigating prevention of cervical cancer, disease burden, and opportunities for improvement in inclusion health women (IHW) 30 Sep 2018

Cervical cancer is preventable due to screening and vaccination against human papillomavirus (HPV), the main cause of cervical cancer. However, there were 3,224 new cases and 890 deaths in the UK in 2014. By 2035, this is predicted to rise by 43% due to screening non-attendance. Living in a deprived area increases cervical cancer rates and non-attendance at screening. Inclusion health addresses needs of groups frequently underserved by health services who have worse overall health than people in deprived areas. These include homeless people, migrants, substance misusers, prisoners, and sex workers. It is likely that they engage the least with cervical cancer prevention and have the greatest need for intervention. Unfortunately, they are rarely included in cervical cancer prevention research. This fellowship will fill this knowledge gap. I will measure disease levels, engagement in prevention, and find ways to improve outcomes in inclusion health women. This is needed to eliminate cervical cancer. I will achieve this in three ways: (1) a review of existing studies on inclusion health and cervical cancer (2) a study linking information on 1.6 million migrants to cervical screening and vaccination data and (3) a survey and HPV testing of inclusion health women attending outreach services.

Amount: £0
Funder: The Wellcome Trust
Recipient: University College London

Understanding the role of retinoic acid in cyanobacteria 31 May 2018

We will be investigating the viability of using cyanobacteria as a model for our own by exploring the evolutionary links as well as the similarities between human cells and cyanobacteria cells in terms of the communication and cell differentiation. This will allow us to use the cyanobacteria as a model for human stem cells. There are 3 cases which will be investigated: metabolism of retinoic acid, nitrogen-fixing cells and prostaglandin cell signalling. In each case, we will be blocking the signal, modifying the bacteria and studying how this affects the bacteria. The production of proteins and the chemical signalling are amongst the several responses we will be monitoring. Using information gained from this we will be able to see if there is a viable link that can be used to monitor cyanobacteria that have human orthologues spliced into it.

Amount: £0
Funder: The Wellcome Trust
Recipient: University of Leeds