Project acronym 2DNanoSpec
Project Nanoscale Vibrational Spectroscopy of Sensitive 2D Molecular Materials
Researcher (PI) Renato ZENOBI
Host Institution (HI) EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH
Country Switzerland
Call Details Advanced Grant (AdG), PE4, ERC-2016-ADG
Summary I propose to investigate the nanometer scale organization of delicate 2-dimensional molecular materials using nanoscale vibrational spectroscopy. 2D structures are of great scientific and technological importance, for example as novel materials (graphene, MoS2, WS2, etc.), and in the form of biological membranes and synthetic 2D-polymers. Powerful methods for their analysis and imaging with molecular selectivity and sufficient spatial resolution, however, are lacking. Tip-enhanced Raman spectroscopy (TERS) allows label-free spectroscopic identification of molecular species, with ≈10 nm spatial resolution, and with single molecule sensitivity for strong Raman scatterers. So far, however, TERS is not being carried out in liquids, which is the natural environment for membranes, and its application to poor Raman scatterers such as components of 2D polymers, lipids, or other membrane compounds (proteins, sugars) is difficult. TERS has the potential to overcome the restrictions of other optical/spectroscopic methods to study 2D materials, namely (i) insufficient spatial resolution of diffraction-limited optical methods; (ii) the need for labelling for all methods relying on fluorescence; and (iii) the inability of some methods to work in liquids. I propose to address a number of scientific questions associated with the spatial organization, and the occurrence of defects in sensitive 2D molecular materials. The success of these studies will also rely critically on technical innovations of TERS that notably address the problem of energy dissipation. This will for the first time allow its application to study of complex, delicate 2D molecular systems without photochemical damage.
Summary
I propose to investigate the nanometer scale organization of delicate 2-dimensional molecular materials using nanoscale vibrational spectroscopy. 2D structures are of great scientific and technological importance, for example as novel materials (graphene, MoS2, WS2, etc.), and in the form of biological membranes and synthetic 2D-polymers. Powerful methods for their analysis and imaging with molecular selectivity and sufficient spatial resolution, however, are lacking. Tip-enhanced Raman spectroscopy (TERS) allows label-free spectroscopic identification of molecular species, with ≈10 nm spatial resolution, and with single molecule sensitivity for strong Raman scatterers. So far, however, TERS is not being carried out in liquids, which is the natural environment for membranes, and its application to poor Raman scatterers such as components of 2D polymers, lipids, or other membrane compounds (proteins, sugars) is difficult. TERS has the potential to overcome the restrictions of other optical/spectroscopic methods to study 2D materials, namely (i) insufficient spatial resolution of diffraction-limited optical methods; (ii) the need for labelling for all methods relying on fluorescence; and (iii) the inability of some methods to work in liquids. I propose to address a number of scientific questions associated with the spatial organization, and the occurrence of defects in sensitive 2D molecular materials. The success of these studies will also rely critically on technical innovations of TERS that notably address the problem of energy dissipation. This will for the first time allow its application to study of complex, delicate 2D molecular systems without photochemical damage.
Max ERC Funding
2 311 696 €
Duration
Start date: 2017-09-01, End date: 2022-08-31
Project acronym AAA
Project Adaptive Actin Architectures
Researcher (PI) Laurent Blanchoin
Host Institution (HI) CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
Country France
Call Details Advanced Grant (AdG), LS3, ERC-2016-ADG
Summary Although we have extensive knowledge of many important processes in cell biology, including information on many of the molecules involved and the physical interactions among them, we still do not understand most of the dynamical features that are the essence of living systems. This is particularly true for the actin cytoskeleton, a major component of the internal architecture of eukaryotic cells. In living cells, actin networks constantly assemble and disassemble filaments while maintaining an apparent stable structure, suggesting a perfect balance between the two processes. Such behaviors are called “dynamic steady states”. They confer upon actin networks a high degree of plasticity allowing them to adapt in response to external changes and enable cells to adjust to their environments. Despite their fundamental importance in the regulation of cell physiology, the basic mechanisms that control the coordinated dynamics of co-existing actin networks are poorly understood. In the AAA project, first, we will characterize the parameters that allow the coupling among co-existing actin networks at steady state. In vitro reconstituted systems will be used to control the actin nucleation patterns, the closed volume of the reaction chamber and the physical interaction of the networks. We hope to unravel the mechanism allowing the global coherence of a dynamic actin cytoskeleton. Second, we will use our unique capacity to perform dynamic micropatterning, to add or remove actin nucleation sites in real time, in order to investigate the ability of dynamic networks to adapt to changes and the role of coupled network dynamics in this emergent property. In this part, in vitro experiments will be complemented by the analysis of actin network remodeling in living cells. In the end, our project will provide a comprehensive understanding of how the adaptive response of the cytoskeleton derives from the complex interplay between its biochemical, structural and mechanical properties.
Summary
Although we have extensive knowledge of many important processes in cell biology, including information on many of the molecules involved and the physical interactions among them, we still do not understand most of the dynamical features that are the essence of living systems. This is particularly true for the actin cytoskeleton, a major component of the internal architecture of eukaryotic cells. In living cells, actin networks constantly assemble and disassemble filaments while maintaining an apparent stable structure, suggesting a perfect balance between the two processes. Such behaviors are called “dynamic steady states”. They confer upon actin networks a high degree of plasticity allowing them to adapt in response to external changes and enable cells to adjust to their environments. Despite their fundamental importance in the regulation of cell physiology, the basic mechanisms that control the coordinated dynamics of co-existing actin networks are poorly understood. In the AAA project, first, we will characterize the parameters that allow the coupling among co-existing actin networks at steady state. In vitro reconstituted systems will be used to control the actin nucleation patterns, the closed volume of the reaction chamber and the physical interaction of the networks. We hope to unravel the mechanism allowing the global coherence of a dynamic actin cytoskeleton. Second, we will use our unique capacity to perform dynamic micropatterning, to add or remove actin nucleation sites in real time, in order to investigate the ability of dynamic networks to adapt to changes and the role of coupled network dynamics in this emergent property. In this part, in vitro experiments will be complemented by the analysis of actin network remodeling in living cells. In the end, our project will provide a comprehensive understanding of how the adaptive response of the cytoskeleton derives from the complex interplay between its biochemical, structural and mechanical properties.
Max ERC Funding
2 349 898 €
Duration
Start date: 2017-09-01, End date: 2022-08-31
Project acronym ACETOGENS
Project Acetogenic bacteria: from basic physiology via gene regulation to application in industrial biotechnology
Researcher (PI) Volker MueLLER
Host Institution (HI) JOHANN WOLFGANG GOETHE-UNIVERSITAET FRANKFURT AM MAIN
Country Germany
Call Details Advanced Grant (AdG), LS9, ERC-2016-ADG
Summary Demand for biofuels and other biologically derived commodities is growing worldwide as efforts increase to reduce reliance on fossil fuels and to limit climate change. Most commercial approaches rely on fermentations of organic matter with its inherent problems in producing CO2 and being in conflict with the food supply of humans. These problems are avoided if CO2 can be used as feedstock. Autotrophic organisms can fix CO2 by producing chemicals that are used as building blocks for the synthesis of cellular components (Biomass). Acetate-forming bacteria (acetogens) do neither require light nor oxygen for this and they can be used in bioreactors to reduce CO2 with hydrogen gas, carbon monoxide or an organic substrate. Gas fermentation using these bacteria has already been realized on an industrial level in two pre-commercial 100,000 gal/yr demonstration facilities to produce fuel ethanol from abundant waste gas resources (by LanzaTech). Acetogens can metabolise a wide variety of substrates that could be used for the production of biocommodities. However, their broad use to produce biofuels and platform chemicals from substrates other than gases or together with gases is hampered by our very limited knowledge about their metabolism and ability to use different substrates simultaneously. Nearly nothing is known about regulatory processes involved in substrate utilization or product formation but this is an absolute requirement for metabolic engineering approaches. The aim of this project is to provide this basic knowledge about metabolic routes in the acetogenic model strain Acetobacterium woodii and their regulation. We will unravel the function of “organelles” found in this bacterium and explore their potential as bio-nanoreactors for the production of biocommodities and pave the road for the industrial use of A. woodii in energy (hydrogen) storage. Thus, this project creates cutting-edge opportunities for the development of biosustainable technologies in Europe.
Summary
Demand for biofuels and other biologically derived commodities is growing worldwide as efforts increase to reduce reliance on fossil fuels and to limit climate change. Most commercial approaches rely on fermentations of organic matter with its inherent problems in producing CO2 and being in conflict with the food supply of humans. These problems are avoided if CO2 can be used as feedstock. Autotrophic organisms can fix CO2 by producing chemicals that are used as building blocks for the synthesis of cellular components (Biomass). Acetate-forming bacteria (acetogens) do neither require light nor oxygen for this and they can be used in bioreactors to reduce CO2 with hydrogen gas, carbon monoxide or an organic substrate. Gas fermentation using these bacteria has already been realized on an industrial level in two pre-commercial 100,000 gal/yr demonstration facilities to produce fuel ethanol from abundant waste gas resources (by LanzaTech). Acetogens can metabolise a wide variety of substrates that could be used for the production of biocommodities. However, their broad use to produce biofuels and platform chemicals from substrates other than gases or together with gases is hampered by our very limited knowledge about their metabolism and ability to use different substrates simultaneously. Nearly nothing is known about regulatory processes involved in substrate utilization or product formation but this is an absolute requirement for metabolic engineering approaches. The aim of this project is to provide this basic knowledge about metabolic routes in the acetogenic model strain Acetobacterium woodii and their regulation. We will unravel the function of “organelles” found in this bacterium and explore their potential as bio-nanoreactors for the production of biocommodities and pave the road for the industrial use of A. woodii in energy (hydrogen) storage. Thus, this project creates cutting-edge opportunities for the development of biosustainable technologies in Europe.
Max ERC Funding
2 497 140 €
Duration
Start date: 2017-10-01, End date: 2022-09-30
Project acronym ADORA
Project Asymptotic approach to spatial and dynamical organizations
Researcher (PI) Benoit PERTHAME
Host Institution (HI) SORBONNE UNIVERSITE
Country France
Call Details Advanced Grant (AdG), PE1, ERC-2016-ADG
Summary The understanding of spatial, social and dynamical organization of large numbers of agents is presently a fundamental issue in modern science. ADORA focuses on problems motivated by biology because, more than anywhere else, access to precise and many data has opened the route to novel and complex biomathematical models. The problems we address are written in terms of nonlinear partial differential equations. The flux-limited Keller-Segel system, the integrate-and-fire Fokker-Planck equation, kinetic equations with internal state, nonlocal parabolic equations and constrained Hamilton-Jacobi equations are among examples of the equations under investigation.
The role of mathematics is not only to understand the analytical structure of these new problems, but it is also to explain the qualitative behavior of solutions and to quantify their properties. The challenge arises here because these goals should be achieved through a hierarchy of scales. Indeed, the problems under consideration share the common feature that the large scale behavior cannot be understood precisely without access to a hierarchy of finer scales, down to the individual behavior and sometimes its molecular determinants.
Major difficulties arise because the numerous scales present in these equations have to be discovered and singularities appear in the asymptotic process which yields deep compactness obstructions. Our vision is that the complexity inherent to models of biology can be enlightened by mathematical analysis and a classification of the possible asymptotic regimes.
However an enormous effort is needed to uncover the equations intimate mathematical structures, and bring them at the level of conceptual understanding they deserve being given the applications motivating these questions which range from medical science or neuroscience to cell biology.
Summary
The understanding of spatial, social and dynamical organization of large numbers of agents is presently a fundamental issue in modern science. ADORA focuses on problems motivated by biology because, more than anywhere else, access to precise and many data has opened the route to novel and complex biomathematical models. The problems we address are written in terms of nonlinear partial differential equations. The flux-limited Keller-Segel system, the integrate-and-fire Fokker-Planck equation, kinetic equations with internal state, nonlocal parabolic equations and constrained Hamilton-Jacobi equations are among examples of the equations under investigation.
The role of mathematics is not only to understand the analytical structure of these new problems, but it is also to explain the qualitative behavior of solutions and to quantify their properties. The challenge arises here because these goals should be achieved through a hierarchy of scales. Indeed, the problems under consideration share the common feature that the large scale behavior cannot be understood precisely without access to a hierarchy of finer scales, down to the individual behavior and sometimes its molecular determinants.
Major difficulties arise because the numerous scales present in these equations have to be discovered and singularities appear in the asymptotic process which yields deep compactness obstructions. Our vision is that the complexity inherent to models of biology can be enlightened by mathematical analysis and a classification of the possible asymptotic regimes.
However an enormous effort is needed to uncover the equations intimate mathematical structures, and bring them at the level of conceptual understanding they deserve being given the applications motivating these questions which range from medical science or neuroscience to cell biology.
Max ERC Funding
2 192 500 €
Duration
Start date: 2017-09-01, End date: 2023-02-28
Project acronym AnonymClassic
Project The Arabic Anonymous in a World Classic
Researcher (PI) Beatrice GRUENDLER
Host Institution (HI) FREIE UNIVERSITAET BERLIN
Country Germany
Call Details Advanced Grant (AdG), SH5, ERC-2016-ADG
Summary AnonymClassic is the first ever comprehensive study of Kalila and Dimna (a book of wisdom in fable form), a text of premodern world literature. Its spread is comparable to that of the Bible, except that it passed from Hinduism and Buddhism via Islam to Christianity. Its Arabic version, produced in the 8th century, when this was the lingua franca of the Near East, became the source of all further translations up to the 19th century. The work’s multilingual history involving circa forty languages has never been systematically studied. The absence of available research has made world literature ignore it, while scholars of Arabic avoided it because of its widely diverging manuscripts, so that the actual shape of the Arabic key version is still in need of investigation. AnonymClassic tests a number of ‘high-risk’ propositions, including three key hypotheses: 1) The anonymous Arabic copyists of Kalila and Dimna are de facto co-authors, 2) their agency is comparable to that of the named medieval translators, and 3) the fluctuation of the Arabic versions is conditioned by the work’s fictional status. AnonymClassic’s methodology relies on a cross-lingual narratological analysis of the Arabic versions and all medieval translations (supported by a synoptic digital edition), which takes precisely the interventions at each stage of transmission (redaction, translation) as its subject. Considering the work’s paths of dissemination from India to Europe, AnonymClassic will challenge the prevalent Western theoretical lens on world literature conceived ‘from above’ with the view ‘from below,’ based on the attested cross-cultural network constituted by its versions. AnonymClassic will introduce a new paradigm of an East-Western literary continuum with Arabic as a cultural bridge. Against the current background of Europe’s diversifying and multicultural society, AnonymClassic purposes to integrate pre-modern Near Eastern literature and culture into our understanding of Global Culture.
Summary
AnonymClassic is the first ever comprehensive study of Kalila and Dimna (a book of wisdom in fable form), a text of premodern world literature. Its spread is comparable to that of the Bible, except that it passed from Hinduism and Buddhism via Islam to Christianity. Its Arabic version, produced in the 8th century, when this was the lingua franca of the Near East, became the source of all further translations up to the 19th century. The work’s multilingual history involving circa forty languages has never been systematically studied. The absence of available research has made world literature ignore it, while scholars of Arabic avoided it because of its widely diverging manuscripts, so that the actual shape of the Arabic key version is still in need of investigation. AnonymClassic tests a number of ‘high-risk’ propositions, including three key hypotheses: 1) The anonymous Arabic copyists of Kalila and Dimna are de facto co-authors, 2) their agency is comparable to that of the named medieval translators, and 3) the fluctuation of the Arabic versions is conditioned by the work’s fictional status. AnonymClassic’s methodology relies on a cross-lingual narratological analysis of the Arabic versions and all medieval translations (supported by a synoptic digital edition), which takes precisely the interventions at each stage of transmission (redaction, translation) as its subject. Considering the work’s paths of dissemination from India to Europe, AnonymClassic will challenge the prevalent Western theoretical lens on world literature conceived ‘from above’ with the view ‘from below,’ based on the attested cross-cultural network constituted by its versions. AnonymClassic will introduce a new paradigm of an East-Western literary continuum with Arabic as a cultural bridge. Against the current background of Europe’s diversifying and multicultural society, AnonymClassic purposes to integrate pre-modern Near Eastern literature and culture into our understanding of Global Culture.
Max ERC Funding
2 435 113 €
Duration
Start date: 2018-01-01, End date: 2022-12-31
Project acronym BRCA-ERC
Project Understanding cancer development in BRCA 1/2 mutation carriers for improved Early detection and Risk Control
Researcher (PI) Martin WIDSCHWENDTER
Host Institution (HI) UNIVERSITY COLLEGE LONDON
Country United Kingdom
Call Details Advanced Grant (AdG), LS7, ERC-2016-ADG
Summary Recent evidence demonstrates that cancer is overtaking cardiovascular disease as the number one cause of mortality in Europe. This is largely due to the lack of preventative measures for common (e.g. breast) or highly fatal (e.g. ovarian) human cancers. Most cancers are multifactorial in origin. The core hypothesis of this research programme is that the extremely high risk of BRCA1/2 germline mutation carriers to develop breast and ovarian cancer is a net consequence of cell-autonomous (direct effect of BRCA mutation in cells at risk) and cell non-autonomous (produced in distant organs and affecting organs at risk) factors which both trigger epigenetic, cancer-initiating effects.
The project’s aims are centered around the principles of systems medicine and built on a large cohort of BRCA mutation carriers and controls who will be offered newly established cancer screening programmes. We will uncover how ‘cell non-autonomous’ factors work, provide detail on the epigenetic changes in at-risk tissues and investigate whether these changes are mechanistically linked to cancer, study whether we can neutralise this process and measure success in the organs at risk, and ideally in easy to access samples such as blood, buccal and cervical cells.
In my Department for Women’s Cancer we have assembled a powerful interdisciplinary team including computational biologists, functionalists, immunologists and clinician scientists linked to leading patient advocacy groups which is extremely well placed to lead this pioneering project to develop the fundamental understanding of cancer development in women with BRCA mutations. To reset the epigenome, re-establishing normal cell identity and consequently reducing cancer risk without the need for surgery and being able to monitor the efficacy using multicellular epigenetic outcome predictors will be a major scientific and medical breakthrough and possibly applicable to other chronic diseases.
Summary
Recent evidence demonstrates that cancer is overtaking cardiovascular disease as the number one cause of mortality in Europe. This is largely due to the lack of preventative measures for common (e.g. breast) or highly fatal (e.g. ovarian) human cancers. Most cancers are multifactorial in origin. The core hypothesis of this research programme is that the extremely high risk of BRCA1/2 germline mutation carriers to develop breast and ovarian cancer is a net consequence of cell-autonomous (direct effect of BRCA mutation in cells at risk) and cell non-autonomous (produced in distant organs and affecting organs at risk) factors which both trigger epigenetic, cancer-initiating effects.
The project’s aims are centered around the principles of systems medicine and built on a large cohort of BRCA mutation carriers and controls who will be offered newly established cancer screening programmes. We will uncover how ‘cell non-autonomous’ factors work, provide detail on the epigenetic changes in at-risk tissues and investigate whether these changes are mechanistically linked to cancer, study whether we can neutralise this process and measure success in the organs at risk, and ideally in easy to access samples such as blood, buccal and cervical cells.
In my Department for Women’s Cancer we have assembled a powerful interdisciplinary team including computational biologists, functionalists, immunologists and clinician scientists linked to leading patient advocacy groups which is extremely well placed to lead this pioneering project to develop the fundamental understanding of cancer development in women with BRCA mutations. To reset the epigenome, re-establishing normal cell identity and consequently reducing cancer risk without the need for surgery and being able to monitor the efficacy using multicellular epigenetic outcome predictors will be a major scientific and medical breakthrough and possibly applicable to other chronic diseases.
Max ERC Funding
2 497 841 €
Duration
Start date: 2017-09-01, End date: 2022-08-31
Project acronym CartiLube
Project Lubricating Cartilage: exploring the relation between lubrication and gene-regulation to alleviate osteoarthritis
Researcher (PI) Jacob KLEIN
Host Institution (HI) WEIZMANN INSTITUTE OF SCIENCE
Country Israel
Call Details Advanced Grant (AdG), PE4, ERC-2016-ADG
Summary Can we exploit insights from the remarkably lubricated surfaces of articular cartilage, to create lubricants that may alleviate osteoarthritis (OA), the most widespread joint disease, affecting millions? These, succinctly, are the challenges of the present proposal. They are driven by our recent finding that lubrication of destabilised joints leads to changes in gene-regulation of the cartilage-embedded chondrocytes to protect against development of the disease. OA alleviation is known to arise through orthopedically suppressing shear-stresses on the cartilage, and a central premise of this project is that, by reducing friction at the articulating cartilage through suitable lubrication, we may achieve the same beneficial effect on the disease. The objectives of this project are to better understand the origins of cartilage boundary lubrication through examination of friction-reduction by its main molecular components, and exploit that understanding to create lubricants that, on intra-articular injection, will lubricate cartilage sufficiently well to achieve alleviation of OA via gene regulation. The project will examine, via both nanotribometric and macroscopic measurements, how the main molecular species implicated in cartilage lubrication, lipids, hyaluronan and lubricin, and their combinations, act together to form optimally lubricating boundary layers on model surfaces as well as on excised cartilage. Based on this, we shall develop suitable materials to lubricate cartilage in joints, using mouse models. Lubricants will further be optimized with respect to their retention in the joint and cartilage targeting, both in model studies and in vivo. The effect of the lubricants in regulating gene expression, in reducing pain and cartilage degradation, and in promoting stem-cell adhesion to the cartilage will be studied in a mouse model in which OA has been induced. Our results will have implications for treatment of a common, debilitating disease.
Summary
Can we exploit insights from the remarkably lubricated surfaces of articular cartilage, to create lubricants that may alleviate osteoarthritis (OA), the most widespread joint disease, affecting millions? These, succinctly, are the challenges of the present proposal. They are driven by our recent finding that lubrication of destabilised joints leads to changes in gene-regulation of the cartilage-embedded chondrocytes to protect against development of the disease. OA alleviation is known to arise through orthopedically suppressing shear-stresses on the cartilage, and a central premise of this project is that, by reducing friction at the articulating cartilage through suitable lubrication, we may achieve the same beneficial effect on the disease. The objectives of this project are to better understand the origins of cartilage boundary lubrication through examination of friction-reduction by its main molecular components, and exploit that understanding to create lubricants that, on intra-articular injection, will lubricate cartilage sufficiently well to achieve alleviation of OA via gene regulation. The project will examine, via both nanotribometric and macroscopic measurements, how the main molecular species implicated in cartilage lubrication, lipids, hyaluronan and lubricin, and their combinations, act together to form optimally lubricating boundary layers on model surfaces as well as on excised cartilage. Based on this, we shall develop suitable materials to lubricate cartilage in joints, using mouse models. Lubricants will further be optimized with respect to their retention in the joint and cartilage targeting, both in model studies and in vivo. The effect of the lubricants in regulating gene expression, in reducing pain and cartilage degradation, and in promoting stem-cell adhesion to the cartilage will be studied in a mouse model in which OA has been induced. Our results will have implications for treatment of a common, debilitating disease.
Max ERC Funding
2 499 944 €
Duration
Start date: 2017-09-01, End date: 2023-08-31
Project acronym ChAMPioN
Project Game-changing Precision Medicine for Curing All Myeloproliferative Neoplasms
Researcher (PI) Tessa Holyoake
Host Institution (HI) UNIVERSITY OF GLASGOW
Country United Kingdom
Call Details Advanced Grant (AdG), LS7, ERC-2016-ADG
Summary Despite decades of research, developing ways to overcome drug resistance in cancer is the most challenging bottleneck for curative therapies. This is because, in some forms of cancer, the cancer stem cells from which the diseases arise are constantly evolving, particularly under the selective pressures of drug therapies, in order to survive. The events leading to drug resistance can occur within one or more individual cancer stem cell(s) – and the features of each of these cells need to be studied in detail in order to develop drugs or drug combinations that can eradicate all of them. The BCR-ABL+ and BCR-ABL- myeloproliferative neoplasms (MPN) are a group of proliferative blood diseases that can be considered both exemplars of precision medicine and of the drug resistance bottleneck. While significant advances in the management of MPN have been made using life-long and expensive tyrosine kinase inhibitors (TKI), patients are rarely cured of their disease. This is because TKI fail to eradicate the leukaemia stem cells (LSC) from which MPN arise and which persist in patients on treatment, often leading to pervasive drug resistance, loss of response to therapy and progression to fatal forms of acute leukaemia. My goal is to change the way we study the LSC that persist in MPN patients as a means of delivering more effective precision medicine in MPN that is a “game-changer” leading to therapy-free remission (TFR) and cure. Here, I will apply an innovative strategy, ChAMPioN, to study the response of the MPN LSC to TKI in innovative pre-clinical laboratory models and directly in patients with MPN - up to the resolution of individual LSC. This work will reveal, for the first time, the molecular and clonal evolution of LSC during TKI therapies, thus enabling the development of more accurate predictions of TKI efficacy and resistance and rational approaches for curative drug therapies.
Summary
Despite decades of research, developing ways to overcome drug resistance in cancer is the most challenging bottleneck for curative therapies. This is because, in some forms of cancer, the cancer stem cells from which the diseases arise are constantly evolving, particularly under the selective pressures of drug therapies, in order to survive. The events leading to drug resistance can occur within one or more individual cancer stem cell(s) – and the features of each of these cells need to be studied in detail in order to develop drugs or drug combinations that can eradicate all of them. The BCR-ABL+ and BCR-ABL- myeloproliferative neoplasms (MPN) are a group of proliferative blood diseases that can be considered both exemplars of precision medicine and of the drug resistance bottleneck. While significant advances in the management of MPN have been made using life-long and expensive tyrosine kinase inhibitors (TKI), patients are rarely cured of their disease. This is because TKI fail to eradicate the leukaemia stem cells (LSC) from which MPN arise and which persist in patients on treatment, often leading to pervasive drug resistance, loss of response to therapy and progression to fatal forms of acute leukaemia. My goal is to change the way we study the LSC that persist in MPN patients as a means of delivering more effective precision medicine in MPN that is a “game-changer” leading to therapy-free remission (TFR) and cure. Here, I will apply an innovative strategy, ChAMPioN, to study the response of the MPN LSC to TKI in innovative pre-clinical laboratory models and directly in patients with MPN - up to the resolution of individual LSC. This work will reveal, for the first time, the molecular and clonal evolution of LSC during TKI therapies, thus enabling the development of more accurate predictions of TKI efficacy and resistance and rational approaches for curative drug therapies.
Max ERC Funding
3 005 818 €
Duration
Start date: 2018-01-01, End date: 2022-12-31
Project acronym CLUNATRA
Project Discovering new Catalysts in the Cluster-Nanoparticle Transition Regime
Researcher (PI) Ib CHORKENDORFF
Host Institution (HI) DANMARKS TEKNISKE UNIVERSITET
Country Denmark
Call Details Advanced Grant (AdG), PE4, ERC-2016-ADG
Summary The purpose of this proposal is to establish new fundamental insight of the reactivity and thereby the catalytic activity of oxides, nitrides, phosphides and sulfides (O-, N-, P-, S- ides) in the Cluster-Nanoparticle transition regime. We will use this insight to develop new catalysts through an interactive loop involving DFT simulations, synthesis, characterization and activity testing. The overarching objective is to make new catalysts that are efficient for production of solar fuels and chemicals to facilitate the implementation of sustainable energy, e.g. electrochemical hydrogen production and reduction of CO2 and N2 through both electrochemical and thermally activated processes.
Recent research has identified why there is a lack of significant progress in developing new more active catalysts. Chemical scaling-relations exist among the intermediates, making it difficult to find a reaction pathway, which provides a flat potential energy landscape - a necessity for making the reaction proceed without large losses. My hypothesis is that going away from the conventional size regime, > 2 nm, one may break such chemical scaling-relations. Non-scalable behavior means that adding an atom results in a completely different reactivity. This drastic change could be even further enhanced if the added atom is a different element than the recipient particle, providing new freedom to control the reaction pathway. The methodology will be based on setting up a specifically optimized instrument for synthesizing such mass-selected clusters/nanoparticles. Thus far, researchers have barely explored this size regime. Only a limited amount of studies has been devoted to inorganic entities of oxides and sulfides; nitrides and phosphides are completely unexplored. We will employ atomic level simulations, synthesis, characterization, and subsequently test for specific reactions. This interdisciplinary loop will result in new breakthroughs in the area of catalyst material discovery.
Summary
The purpose of this proposal is to establish new fundamental insight of the reactivity and thereby the catalytic activity of oxides, nitrides, phosphides and sulfides (O-, N-, P-, S- ides) in the Cluster-Nanoparticle transition regime. We will use this insight to develop new catalysts through an interactive loop involving DFT simulations, synthesis, characterization and activity testing. The overarching objective is to make new catalysts that are efficient for production of solar fuels and chemicals to facilitate the implementation of sustainable energy, e.g. electrochemical hydrogen production and reduction of CO2 and N2 through both electrochemical and thermally activated processes.
Recent research has identified why there is a lack of significant progress in developing new more active catalysts. Chemical scaling-relations exist among the intermediates, making it difficult to find a reaction pathway, which provides a flat potential energy landscape - a necessity for making the reaction proceed without large losses. My hypothesis is that going away from the conventional size regime, > 2 nm, one may break such chemical scaling-relations. Non-scalable behavior means that adding an atom results in a completely different reactivity. This drastic change could be even further enhanced if the added atom is a different element than the recipient particle, providing new freedom to control the reaction pathway. The methodology will be based on setting up a specifically optimized instrument for synthesizing such mass-selected clusters/nanoparticles. Thus far, researchers have barely explored this size regime. Only a limited amount of studies has been devoted to inorganic entities of oxides and sulfides; nitrides and phosphides are completely unexplored. We will employ atomic level simulations, synthesis, characterization, and subsequently test for specific reactions. This interdisciplinary loop will result in new breakthroughs in the area of catalyst material discovery.
Max ERC Funding
2 500 000 €
Duration
Start date: 2017-09-01, End date: 2023-06-30
Project acronym CoupledNC
Project Coupled Nanocrystal Molecules: Quantum coupling effects via chemical coupling of colloidal nanocrystals
Researcher (PI) Uri BANIN
Host Institution (HI) THE HEBREW UNIVERSITY OF JERUSALEM
Country Israel
Call Details Advanced Grant (AdG), PE4, ERC-2016-ADG
Summary Coupling of atoms is the basis of chemistry, yielding the beauty and richness of molecules and materials. Herein I introduce nanocrystal chemistry: the use of semiconductor nanocrystals (NCs) as artificial atoms to form NC molecules that are chemically, structurally and physically coupled. The unique emergent quantum mechanical consequences of the NCs coupling will be studied and tailored to yield a chemical-quantum palette: coherent coupling of NC exciton states; dual color single photon emitters functional also as photo-switchable chromophores in super-resolution fluorescence microscopy; electrically switchable single NC photon emitters for utilization as taggants for neuronal activity and as chromophores in displays; new NC structures for lasing; and coupled quasi-1D NC chains manifesting mini-band formation, and tailored for a quantum-cascade effect for IR photon emission. A novel methodology of controlled oriented attachment of NC building blocks (in particular of core/shell NCs) will be presented to realize the coupled NCs molecules. For this a new type of Janus NC building block will be developed, and used as an element in a Lego-type construction of double quantum dots (dimers), heterodimers coupling two different types of NCs, and more complex NC coupled quantum structures. To realize this NC chemistry approach, surface control is essential, which will be achieved via investigation of the chemical and dynamical properties of the NCs surface ligands layer. As outcome I can expect to decipher NCs surface chemistry and dynamics, including its size dependence, and to introduce Janus NCs with chemically distinct and selectively modified surface faces. From this I will develop a new step-wise approach for synthesis of coupled NCs molecules and reveal the consequences of quantum coupling in them. This will inspire theoretical and further experimental work and will set the stage for the development of the diverse potential applications of coupled NC molecules.
Summary
Coupling of atoms is the basis of chemistry, yielding the beauty and richness of molecules and materials. Herein I introduce nanocrystal chemistry: the use of semiconductor nanocrystals (NCs) as artificial atoms to form NC molecules that are chemically, structurally and physically coupled. The unique emergent quantum mechanical consequences of the NCs coupling will be studied and tailored to yield a chemical-quantum palette: coherent coupling of NC exciton states; dual color single photon emitters functional also as photo-switchable chromophores in super-resolution fluorescence microscopy; electrically switchable single NC photon emitters for utilization as taggants for neuronal activity and as chromophores in displays; new NC structures for lasing; and coupled quasi-1D NC chains manifesting mini-band formation, and tailored for a quantum-cascade effect for IR photon emission. A novel methodology of controlled oriented attachment of NC building blocks (in particular of core/shell NCs) will be presented to realize the coupled NCs molecules. For this a new type of Janus NC building block will be developed, and used as an element in a Lego-type construction of double quantum dots (dimers), heterodimers coupling two different types of NCs, and more complex NC coupled quantum structures. To realize this NC chemistry approach, surface control is essential, which will be achieved via investigation of the chemical and dynamical properties of the NCs surface ligands layer. As outcome I can expect to decipher NCs surface chemistry and dynamics, including its size dependence, and to introduce Janus NCs with chemically distinct and selectively modified surface faces. From this I will develop a new step-wise approach for synthesis of coupled NCs molecules and reveal the consequences of quantum coupling in them. This will inspire theoretical and further experimental work and will set the stage for the development of the diverse potential applications of coupled NC molecules.
Max ERC Funding
2 499 750 €
Duration
Start date: 2017-11-01, End date: 2022-10-31
