This research programme focuses on the detailed actions of human insulin and Insulin-like Growth Factors-1 and 2 (IGF1/2); these are closely related protein hormones. Through evolution they acquired separate biological functions, with insulin becoming a key regulator of metabolism, while IGF1/2 are major growth factors behind cell growth and differentiation. The levels of activity of these hormones determine how long and how healthy we live in the face of lifestyle, diet and disease. When released into the blood the hormones bind, tightly and specifically, to their receptors: Insulin- (IR) and IGF-1R, respectively, large complex protein molecules on the cell surface. Receptor binding, through which the hormone activity is delivered into cells, involves structural changes in both the hormone and the receptors. Here we aim to understand the key events in the translation of hormone signal from the outside to the inside of the cell. Despite their fundamental medical importance, such as insulin signaling malfunctions in Type 1 (T1D) and Type 2 Diabetes (T2D), IGF1/2 are major drivers of cancer, it is still not understood how these hormones achieve their specific signals and induce different biological effects via their receptors. The complexity of insulin & IG1/2 molecular actions are further convoluted by the existence of two, very similar forms of the IR, and the ability of these hormones to bind in some way to all receptors. There are two forms of the IR; the IR-B form controls metabolic actions of insulin, while IR-A binds also IGF1/IGF2, and can stimulate cell growth and proliferation. This very complex, and intertwined molecular activity of insulin and IGF1/2 is the basis of their huge societal and human health impact. ~£25mln/day of the NHS budget is spent on T2D, largely to treat associated complications such as cardiovascular and kidney disorders, cancer, and neurodegeneration. Hence there is an urgent need to understand insulin and IGF1/IGF2 specificity at the hormonal and receptor level. This could be then exploited in the design and delivery of new, safer, forms of insulin (analogues), and new IGF1/2 analogues with anti-cancer and beneficial (e.g. anti-neurodegenerative) selective properties, without side-effects seen in diabetes. This research programme is responding to this challenge by offering a consolidated, multidisciplinary (structural, chemical and cell biology) approach to these problems, addressing all the key aspect of insulin & IGF1/2 biology: hormones, receptors and cells. Fundamental research is the foundation cornerstone of this programme. However, the advanced expertise of this group in applied biomedical sciences will enable thorough clinical translation for the benefit of patients with different conditions. This programme will deliver: - on the receptor level: (i) the description of insulin binding to its receptors IR-A and IR-B, (ii) delineation of the structural signatures in the IR-A and IR-B extracellular, hormone-binding parts, (iii) how the hormone-triggered signal is transduced to the inside of the cell in IR and IGF-1R receptors, (iv) what are the structural determinants of insulin and IGF1/2 specific actions through their receptors - on the hormone level: (i) description of the metabolic and mitogenic elements of human insulin, (ii) description of IGF1/IGF2 hormonal determinants behind their specificities, (iii) development of highly-metabolic, safe insulin analogues, (iv) development of IGF-1R specific IGF1 and IGF2 analogues, including IGF-1R antagonist with anti-cancer applicability -on the cell-level: (i) description of the contribution of IR-A, IR-B and IGF-1R to hormone-activated glucose uptake into human muscle and fat tissue, (ii) development of advanced human cell-systems with specific receptors to optimise development of insulin analogues, and for study of T2D, (iii) validation of the available human tissue models used in glucose transport studies.

We are currently living in an obesity epidemic which has huge health consequences for individuals and for the whole of society. Therefore, it is imperative that we investigate how our body regulates fat mass under normal and obese conditions, so that we might provide new avenues to educate or treat people suffering with excess body weight. Most treatments for obesity involve decreasing the amount of food we eat, either through dieting, pharmaceutical drugs or surgery. An alternative would be to increase the amount of energy we expend either by increasing exercise or by changing the balance between the fat we "store away" and the amount we "burn off." Our laboratories have had a long-standing interest in how the brain controls body weight. In particular, we have shown previously that brain cells, which produce a class of messenger called RFamides, can affect body weight quite dramatically. Some RFamides reduce food intake, while others increase energy expenditure, or do both. Recently, we have discovered that selective drugs which act on the receptors for RFamides can reduce body weight in obese mice, when the drugs are administered into the body, rather than into the brain. Very importantly, the drugs do not affect the amount of food the mice eat. Instead, they appear to affect the way fat is handled in the body. This is exciting because currently there are no safe treatments which have this effect. However, we do not know whether this is because the mice make less fat or burn more off. Nor do we know if the drugs have to get into the brain to have their effect, or whether they act directly on other organs, such as the liver or fat depots. To answer these questions, we will examine drugs which have different affinities for different RFamide receptors and measure their action on fat balance. We will breed mice which express special genes in specific cells of the brain. These mice are normally healthy, but we predict that they will become very fat if given a high-fat diet, similar with what is happening to people in the UK today. By using these mice, we will be able to pinpoint exactly where the drugs are having their action. In the future, this will allow us and our collaborators within the pharmaceutical industry to devise new treatments for obesity.

Our laboratory studies Type 1 Diabetes (T1D), which is an autoimmune disease caused by an attack of the body's own immune system against the insulin producing beta cells in the pancreas. Once these cells are destroyed, patients need to inject insulin in order to take up glucose. Manual glucose monitoring and insulin injection cannot balance blood glucose levels as well as endogenous production, and complications arising from poor glucose control are common. The aim of our research is to discover a cure for this disease. As T1D is mediated by the immune system, and many of the processes involved are too complex to be replicated in an in vitro system, a lot of our work therefore requires use of experimental mice. As disease progression is not uniform even in the T1D prone non-obese diabetic (NOD) mouse strain, large groups of mice need to be assessed to determine if a treatment reduces immune infiltration in the islets, or if it changes the proportions of different types of immune cells. As the pancreas is situated within the abdominal cavity the mice have to be culled to access it, meaning that for every time point studied a fresh group of mice has to be used. Our proposal describes the use of a completely novel method for investigating immune infiltration into islets transplanted into the pinna of the ear. This method allows non-invasive and repeated investigation of the same islets at different time points. The fact that the same individual can be measured before and after any treatment removes the need for large group sizes, and as the imaging is non invasive the same individual can be measured at several time points, reducing the number of groups needed. We believe that this novel technique will allow us to collect better quality data using significantly fewer experimental animals.

Molecular robotics represents the ultimate in the miniaturisation of machinery. We shall design and make the smallest machines possible and use them to perform tasks. Applications of molecular robotics systems could help reduce demand for materials, accelerate and improve drug discovery, reduce power requirements, facilitate recycling, reduce life-cycle costs and increase miniaturisation. In doing so it will help address the needs of society and contribute to competitiveness and sustainable development objectives, public health, employment, energy, transport and security. Perhaps the best way to appreciate the technological potential of molecular robotics is to recognise that molecular machines lie at the heart of every significant biological process. Over billions of years of evolution Nature has not repeatedly chosen this solution for achieving complex task performance without good reason. When we learn how to build artificial structures that can control and exploit molecular level motion, and interface their effects directly with other molecular-level substructures and the outside world, it will potentially impact on every aspect of functional molecule and materials design. An improved understanding of physics and biology will surely follow.

The bioprocess industry manufactures novel macromolecular drugs, proteins, to address a broad range of chronic and debilitating human diseases. The complexity of these protein-based drugs brings them significant potential in terms of potency against disease, but they are also much more labile and challenging to manufacture than traditional chemical drugs. This challenge is continuing to increase rapidly as novel technologies emerge and make their way into new therapies, such as proteins conjugated to chemical drug entities, DNA, RNA or lipids, or fusions of multiple proteins, which increase their potency and targeted delivery in patients. The UK holds a leading position in developing and manufacturing new therapies by virtue of its science base and has unique university capabilities underpinning the sector. Whilst revenues are large, ~£110bn in 2009 on a worldwide basis, there are huge pressures on the industry for change if demands for healthcare cost reduction and waste minimisation are to be met, and populations are to benefit from the most potent drugs becoming available. A sea change in manufacturing will be needed over the next decade if the potential of modern drugs are to make their way through to widespread distribution. Moreover there is a widely accepted skills shortage of individuals with fundamental "blue-skies" thinking capability, yet also with the manufacturing research training needed for the sector. The proposed EPSRC CDT will deliver a national capability for training the next generation of highly skilled future leaders and bioprocess manufacturing researchers for the UK biopharmaceutical sector. They will be capable of translating new scientific advances both in manufacturing technologies and new classes of macromolecular products into safely produced, more selective, therapies for currently intractable conditions at affordable costs. This is seen as essential where the rapid evolution of biopharmaceuticals and their manufacturing will have major implications for future medicine. The CDT will be a national resource linked to the EPSRC Centre for Innovative Manufacturing (CIM) in Emergent Macromolecular Therapies (EP/I033270/1), which aims to tackle new process engineering, product stability, and product analysis challenges that arise when manufacturing complex therapies based on radically new chemistry and molecular biology. The CDT will embed PhD students into the vibrant research community of the top UK Institutions, with collaborations overseen by the EPSRC CIM, to enable exploration of new process engineering, modelling, analysis, formulation and drug delivery techniques, and novel therapies (e.g. fusion proteins, and chemical drugs conjugated to antibodies), as they emerge from the international science and engineering community. Alignment to the EPSRC CIM will ensure projects strategically address key bioprocess manufacturing challenges identified by the industrial user group, while providing a cohort-based training environment that draws on the research excellence of the ESPRC CIM to maximise impact and knowledge transfer from collaborative partners to research led companies.