Project acronym BISMUTH
Project Breaking Inversion Symmetry in Magnets: Understand via THeory
Researcher (PI) Silvia Picozzi
Host Institution (HI) CONSIGLIO NAZIONALE DELLE RICERCHE
Country Italy
Call Details Starting Grant (StG), PE3, ERC-2007-StG
Summary Multiferroics (i.e. materials where ferroelectricity and magnetism coexist) are presently drawing enormous interests, due to their technologically-relevant multifunctional character and to the astoundingly rich playground for fundamental condensed-matter physics they constitute. Here, we put forward several concepts on how to break inversion symmetry and achieve sizable ferroelectricity in collinear magnets; our approach is corroborated via first-principles calculations as tools to quantitatively estimate relevant ferroelectric and magnetic properties as well as to reveal ab-initio the main mechanisms behind the dipolar and magnetic orders. In closer detail, we focus on the interplay between ferroelectricity and electronic degrees of freedom in magnets, i.e. on those cases where spin- or orbital- or charge-ordering can be the driving force for a spontaneous polarization to develop. Antiferromagnetism will be considered as a primary mechanism for lifting inversion symmetry; however, the effects of charge disproportionation and orbital ordering will also be studied by examining a wide class of materials, including ortho-manganites with E-type spin-arrangement, non-E-type antiferromagnets, nickelates, etc. Finally, as an example of materials-design accessible to our ab-initio approach, we use “chemistry” to break inversion symmetry by artificially constructing an oxide superlattice and propose a way to switch, via an electric field, from antiferromagnetism to ferrimagnetism. To our knowledge, the link between electronic degrees of freedom and ferroelectricity in collinear magnets is an almost totally unexplored field by ab-initio methods; indeed, its clear understanding and optimization would lead to a scientific breakthrough in the multiferroics area. Technologically, it would pave the way to materials design of magnetic ferroelectrics with properties persisting above room temperature and, therefore, to a novel generation of electrically-controlled spintronic devices
Summary
Multiferroics (i.e. materials where ferroelectricity and magnetism coexist) are presently drawing enormous interests, due to their technologically-relevant multifunctional character and to the astoundingly rich playground for fundamental condensed-matter physics they constitute. Here, we put forward several concepts on how to break inversion symmetry and achieve sizable ferroelectricity in collinear magnets; our approach is corroborated via first-principles calculations as tools to quantitatively estimate relevant ferroelectric and magnetic properties as well as to reveal ab-initio the main mechanisms behind the dipolar and magnetic orders. In closer detail, we focus on the interplay between ferroelectricity and electronic degrees of freedom in magnets, i.e. on those cases where spin- or orbital- or charge-ordering can be the driving force for a spontaneous polarization to develop. Antiferromagnetism will be considered as a primary mechanism for lifting inversion symmetry; however, the effects of charge disproportionation and orbital ordering will also be studied by examining a wide class of materials, including ortho-manganites with E-type spin-arrangement, non-E-type antiferromagnets, nickelates, etc. Finally, as an example of materials-design accessible to our ab-initio approach, we use “chemistry” to break inversion symmetry by artificially constructing an oxide superlattice and propose a way to switch, via an electric field, from antiferromagnetism to ferrimagnetism. To our knowledge, the link between electronic degrees of freedom and ferroelectricity in collinear magnets is an almost totally unexplored field by ab-initio methods; indeed, its clear understanding and optimization would lead to a scientific breakthrough in the multiferroics area. Technologically, it would pave the way to materials design of magnetic ferroelectrics with properties persisting above room temperature and, therefore, to a novel generation of electrically-controlled spintronic devices
Max ERC Funding
684 000 €
Duration
Start date: 2008-05-01, End date: 2012-04-30
Project acronym BiT
Project How the Human Brain Masters Time
Researcher (PI) Domenica Bueti
Host Institution (HI) SCUOLA INTERNAZIONALE SUPERIORE DI STUDI AVANZATI DI TRIESTE
Country Italy
Call Details Consolidator Grant (CoG), SH4, ERC-2015-CoG
Summary If you suddenly hear your song on the radio and spontaneously decide to burst into dance in your living room, you need to precisely time your movements if you do not want to find yourself on your bookshelf. Most of what we do or perceive depends on how accurately we represent the temporal properties of the environment however we cannot see or touch time. As such, time in the millisecond range is both a fundamental and elusive dimension of everyday experiences. Despite the obvious importance of time to information processing and to behavior in general, little is known yet about how the human brain process time. Existing approaches to the study of the neural mechanisms of time mainly focus on the identification of brain regions involved in temporal computations (‘where’ time is processed in the brain), whereas most computational models vary in their biological plausibility and do not always make clear testable predictions. BiT is a groundbreaking research program designed to challenge current models of time perception and to offer a new perspective in the study of the neural basis of time. The groundbreaking nature of BiT derives from the novelty of the questions asked (‘when’ and ‘how’ time is processed in the brain) and from addressing them using complementary but distinct research approaches (from human neuroimaging to brain stimulation techniques, from the investigation of the whole brain to the focus on specific brain regions). By testing a new biologically plausible hypothesis of temporal representation (via duration tuning and ‘chronotopy’) and by scrutinizing the functional properties and, for the first time, the temporal hierarchies of ‘putative’ time regions, BiT will offer a multifaceted knowledge of how the human brain represents time. This new knowledge will challenge our understanding of brain organization and function that typically lacks of a time angle and will impact our understanding of how the brain uses time information for perception and action
Summary
If you suddenly hear your song on the radio and spontaneously decide to burst into dance in your living room, you need to precisely time your movements if you do not want to find yourself on your bookshelf. Most of what we do or perceive depends on how accurately we represent the temporal properties of the environment however we cannot see or touch time. As such, time in the millisecond range is both a fundamental and elusive dimension of everyday experiences. Despite the obvious importance of time to information processing and to behavior in general, little is known yet about how the human brain process time. Existing approaches to the study of the neural mechanisms of time mainly focus on the identification of brain regions involved in temporal computations (‘where’ time is processed in the brain), whereas most computational models vary in their biological plausibility and do not always make clear testable predictions. BiT is a groundbreaking research program designed to challenge current models of time perception and to offer a new perspective in the study of the neural basis of time. The groundbreaking nature of BiT derives from the novelty of the questions asked (‘when’ and ‘how’ time is processed in the brain) and from addressing them using complementary but distinct research approaches (from human neuroimaging to brain stimulation techniques, from the investigation of the whole brain to the focus on specific brain regions). By testing a new biologically plausible hypothesis of temporal representation (via duration tuning and ‘chronotopy’) and by scrutinizing the functional properties and, for the first time, the temporal hierarchies of ‘putative’ time regions, BiT will offer a multifaceted knowledge of how the human brain represents time. This new knowledge will challenge our understanding of brain organization and function that typically lacks of a time angle and will impact our understanding of how the brain uses time information for perception and action
Max ERC Funding
1 670 830 €
Duration
Start date: 2016-10-01, End date: 2022-09-30
Project acronym BIT-ACT
Project Bottom-up initiatives and anti-corruption technologies: how citizens use ICTs to fight corruption
Researcher (PI) Alice Mattoni
Host Institution (HI) ALMA MATER STUDIORUM - UNIVERSITA DI BOLOGNA
Country Italy
Call Details Starting Grant (StG), SH2, ERC-2018-STG
Summary Corruption is a global challenge that affects the lives of millions of citizens. In the past decade, Information and Communication Technologies (ICTs) have become indispensable tools in the fight to reduce corruption, especially when employed from the bottom-up by civil society organizations. While pioneering initiatives in this direction have flourished, to date we only have unsystematic and descriptive evidence regarding how they work and the associated consequences. With the objective of significantly advancing knowledge on this topic, BIT-ACT will open a new line of inquiry by investigating what I call anti-corruption technologies (ACTs) to: (1) assess how civil society organizations engage with ACTs to counter corruption, (2) appraise how ACTs enable intersections between bottom-up and top-down efforts against corruption, and (3) evaluate how ACTs blend with the transnational dimension in the struggle against corruption. Based on an interdisciplinary framework that combines corruption studies, science and technology studies and social movement studies, BIT-ACT will use the constructivist grounded theory method to analyze a combination of textual and visual data in a comparative and transnational research design including nine countries – Algeria, Bangladesh, Brazil, Estonia, India, Italy, Spain, Ukraine, Uruguay. BIT-ACT will be groundbreaking in three ways. At the theoretical level, it will expand the debate on anti-corruption providing grounded concepts and models to explain ACTs; at the empirical level, it will advance knowledge on how the usage of ACTs is changing the relationship between citizens and democratic institutions; at the methodological level, it will innovate in the use of grounded theory assessing a new standard for cross-national comparative grounded theory. Finally, BIT-ACT will produce sound and useful knowledge for the stakeholders involved in the fight against corruption worldwide by suggesting how to best employ ICTs from the bottom-up.
Summary
Corruption is a global challenge that affects the lives of millions of citizens. In the past decade, Information and Communication Technologies (ICTs) have become indispensable tools in the fight to reduce corruption, especially when employed from the bottom-up by civil society organizations. While pioneering initiatives in this direction have flourished, to date we only have unsystematic and descriptive evidence regarding how they work and the associated consequences. With the objective of significantly advancing knowledge on this topic, BIT-ACT will open a new line of inquiry by investigating what I call anti-corruption technologies (ACTs) to: (1) assess how civil society organizations engage with ACTs to counter corruption, (2) appraise how ACTs enable intersections between bottom-up and top-down efforts against corruption, and (3) evaluate how ACTs blend with the transnational dimension in the struggle against corruption. Based on an interdisciplinary framework that combines corruption studies, science and technology studies and social movement studies, BIT-ACT will use the constructivist grounded theory method to analyze a combination of textual and visual data in a comparative and transnational research design including nine countries – Algeria, Bangladesh, Brazil, Estonia, India, Italy, Spain, Ukraine, Uruguay. BIT-ACT will be groundbreaking in three ways. At the theoretical level, it will expand the debate on anti-corruption providing grounded concepts and models to explain ACTs; at the empirical level, it will advance knowledge on how the usage of ACTs is changing the relationship between citizens and democratic institutions; at the methodological level, it will innovate in the use of grounded theory assessing a new standard for cross-national comparative grounded theory. Finally, BIT-ACT will produce sound and useful knowledge for the stakeholders involved in the fight against corruption worldwide by suggesting how to best employ ICTs from the bottom-up.
Max ERC Funding
1 489 115 €
Duration
Start date: 2019-07-01, End date: 2024-06-30
Project acronym BONEPHAGY
Project Defining the role of the FGF – autophagy axis in bone physiology
Researcher (PI) Carmine SETTEMBRE
Host Institution (HI) FONDAZIONE TELETHON
Country Italy
Call Details Starting Grant (StG), LS4, ERC-2016-STG
Summary Autophagy is a fundamental cellular catabolic process deputed to the degradation and recycling of a variety of intracellular materials. Autophagy plays a significant role in multiple human physio-pathological processes and is now emerging as a critical regulator of skeletal development and homeostasis. We have discovered that during postnatal development in mice, the growth factor FGF18 induces autophagy in the chondrocyte cells of the growth plate to regulate the secretion of type II collagen, a major component of cartilaginous extracellular matrix. The FGF signaling pathways play crucial roles during skeletal development and maintenance and are deregulated in many skeletal disorders. Hence our findings may offer the unique opportunity to uncover new molecular mechanisms through which FGF pathways regulate skeletal development and maintenance and to identify new targets for the treatment of FGF-related skeletal disorders. In this grant application we propose to study the role played by the different FGF ligands and receptors on autophagy regulation and to investigate the physiological relevance of these findings in the context of skeletal growth, homeostasis and maintenance. We will also investigate the intracellular machinery that links FGF signalling pathways to the regulation of autophagy. In addition, we generated preliminary data showing an impairment of autophagy in chondrocyte models of Achondroplasia (ACH) and Thanathoporic dysplasia, two skeletal disorders caused by mutations in FGFR3. We propose to study the role of autophagy in the pathogenesis of FGFR3-related dwarfisms and explore the pharmacological modulation of autophagy as new therapeutic approach for achondroplasia. This application, which combines cell biology, mouse genetics and pharmacological approaches, has the potential to shed light on new mechanisms involved in organismal development and homeostasis, which could be targeted to treat bone and cartilage diseases.
Summary
Autophagy is a fundamental cellular catabolic process deputed to the degradation and recycling of a variety of intracellular materials. Autophagy plays a significant role in multiple human physio-pathological processes and is now emerging as a critical regulator of skeletal development and homeostasis. We have discovered that during postnatal development in mice, the growth factor FGF18 induces autophagy in the chondrocyte cells of the growth plate to regulate the secretion of type II collagen, a major component of cartilaginous extracellular matrix. The FGF signaling pathways play crucial roles during skeletal development and maintenance and are deregulated in many skeletal disorders. Hence our findings may offer the unique opportunity to uncover new molecular mechanisms through which FGF pathways regulate skeletal development and maintenance and to identify new targets for the treatment of FGF-related skeletal disorders. In this grant application we propose to study the role played by the different FGF ligands and receptors on autophagy regulation and to investigate the physiological relevance of these findings in the context of skeletal growth, homeostasis and maintenance. We will also investigate the intracellular machinery that links FGF signalling pathways to the regulation of autophagy. In addition, we generated preliminary data showing an impairment of autophagy in chondrocyte models of Achondroplasia (ACH) and Thanathoporic dysplasia, two skeletal disorders caused by mutations in FGFR3. We propose to study the role of autophagy in the pathogenesis of FGFR3-related dwarfisms and explore the pharmacological modulation of autophagy as new therapeutic approach for achondroplasia. This application, which combines cell biology, mouse genetics and pharmacological approaches, has the potential to shed light on new mechanisms involved in organismal development and homeostasis, which could be targeted to treat bone and cartilage diseases.
Max ERC Funding
1 586 430 €
Duration
Start date: 2017-01-01, End date: 2022-06-30
Project acronym BOOST
Project Biomimetic trick to re-balance Osteblast-Osteoclast loop in osteoporoSis treatment: a Topological and materials driven approach
Researcher (PI) Chiara Silvia Vitale Brovarone
Host Institution (HI) POLITECNICO DI TORINO
Country Italy
Call Details Consolidator Grant (CoG), PE8, ERC-2015-CoG
Summary One out of 5 people in their fifties will experience a bone fracture due to osteoporosis (OP)-induced fragility in their lifetime. The OP socio-economic burden is dramatic and involves tens of millions of people in the EU, with a steadily increasing number due to population ageing. Current treatments entail drug-therapy coupled with a healthy lifestyle but OP fractures need mechanical fixation to rapidly achieve union: the contribution of biomaterial scientists in this field is still far from taking its expected leading role in cutting-edge research. Bone remodelling is a well-coordinated process of bone resorption by osteoclasts followed by the production of new bone by osteoblasts. This process occurs continuously throughout life in a coupling with a positive balance during growth and negative with ageing, which can result in OP. We believe that an architecture driven stimulation of the osteoclast/osteoblast coupling, with an avant-garde focus on osteoclasts activity, is the key to success in treating unbalanced bone remodelling. We aim to manufacture a scaffold that mimics healthy bone features which will establish a new microenvironment favoring a properly stimulated and active population of osteoclasts and osteoblasts, i.e. a well-balanced bone cooperation. After 5 years we will be able to prove the efficacy of this approach. A benchmark will be set up for OP fracture treatment and for the realization of smart bone substitutes that will be able to locally “trick” aged bone cells stimulating them to act as healthy ones. BOOST results will have an unprecedented impact on the scientific research community, opening a new approach to set up smart, biomimetic strategies to treat aged, unbalanced bone tissues and to reduce OP-associated disabilities and financial burdens.
Summary
One out of 5 people in their fifties will experience a bone fracture due to osteoporosis (OP)-induced fragility in their lifetime. The OP socio-economic burden is dramatic and involves tens of millions of people in the EU, with a steadily increasing number due to population ageing. Current treatments entail drug-therapy coupled with a healthy lifestyle but OP fractures need mechanical fixation to rapidly achieve union: the contribution of biomaterial scientists in this field is still far from taking its expected leading role in cutting-edge research. Bone remodelling is a well-coordinated process of bone resorption by osteoclasts followed by the production of new bone by osteoblasts. This process occurs continuously throughout life in a coupling with a positive balance during growth and negative with ageing, which can result in OP. We believe that an architecture driven stimulation of the osteoclast/osteoblast coupling, with an avant-garde focus on osteoclasts activity, is the key to success in treating unbalanced bone remodelling. We aim to manufacture a scaffold that mimics healthy bone features which will establish a new microenvironment favoring a properly stimulated and active population of osteoclasts and osteoblasts, i.e. a well-balanced bone cooperation. After 5 years we will be able to prove the efficacy of this approach. A benchmark will be set up for OP fracture treatment and for the realization of smart bone substitutes that will be able to locally “trick” aged bone cells stimulating them to act as healthy ones. BOOST results will have an unprecedented impact on the scientific research community, opening a new approach to set up smart, biomimetic strategies to treat aged, unbalanced bone tissues and to reduce OP-associated disabilities and financial burdens.
Max ERC Funding
1 977 500 €
Duration
Start date: 2016-05-01, End date: 2022-06-30
Project acronym BORDERLANDS
Project Borderlands: Expanding Boundaries, Governance, and Power in the European Union's Relations with North Africa and the Middle East
Researcher (PI) Raffaella Alessandra Del Sarto
Host Institution (HI) EUROPEAN UNIVERSITY INSTITUTE
Country Italy
Call Details Starting Grant (StG), SH2, ERC-2010-StG_20091209
Summary Challenging the notion of Fortress Europe , the research investigates relations between the European Union and its southern periphery through the concept of borderlands . The concept emphasises the disaggregation of the triple function of borders demarcating state territory, authority, and national identity inherent in the Westphalian model of statehood. This process is most visible in (although not limited to) Europe, where integration has led to supranational areas of sovereignty, an internal market, a common currency, and a zone of free movement of people, each with a different territorial span. The project explores the complex and differentiated process by which the EU extends its unbundled functional and legal borders to the so-called southern Mediterranean (North Africa and parts of the Middle East), thereby transforming it into borderlands . They connect the European core with the periphery through various legal and functional border regimes, governance patterns, and the selective outsourcing of some EU border control duties. The overarching questions informing this research is whether, first, the borderland policies of the EU, described by some as a neo-medieval empire, is a functional consequence of the specific integration model pursued inside the EU, a matter of foreign policy choice or a local manifestation of a broader global phenomenon. Second, the project addresses the question of power dynamics that underwrite borderland governance, presuming a growing leverage of third country governments resulting from their co-optation as gatekeepers. Thus, while adopting an innovative approach, the project will enhance our understanding of EU-Mediterranean relations while also addressing crucial theoretical questions in international relations.
Summary
Challenging the notion of Fortress Europe , the research investigates relations between the European Union and its southern periphery through the concept of borderlands . The concept emphasises the disaggregation of the triple function of borders demarcating state territory, authority, and national identity inherent in the Westphalian model of statehood. This process is most visible in (although not limited to) Europe, where integration has led to supranational areas of sovereignty, an internal market, a common currency, and a zone of free movement of people, each with a different territorial span. The project explores the complex and differentiated process by which the EU extends its unbundled functional and legal borders to the so-called southern Mediterranean (North Africa and parts of the Middle East), thereby transforming it into borderlands . They connect the European core with the periphery through various legal and functional border regimes, governance patterns, and the selective outsourcing of some EU border control duties. The overarching questions informing this research is whether, first, the borderland policies of the EU, described by some as a neo-medieval empire, is a functional consequence of the specific integration model pursued inside the EU, a matter of foreign policy choice or a local manifestation of a broader global phenomenon. Second, the project addresses the question of power dynamics that underwrite borderland governance, presuming a growing leverage of third country governments resulting from their co-optation as gatekeepers. Thus, while adopting an innovative approach, the project will enhance our understanding of EU-Mediterranean relations while also addressing crucial theoretical questions in international relations.
Max ERC Funding
1 353 920 €
Duration
Start date: 2011-10-01, End date: 2017-03-31
Project acronym BRAIN-ACT
Project Biohybrid Synapses for Interactive Neuronal Networks
Researcher (PI) Francesca Santoro
Host Institution (HI) FONDAZIONE ISTITUTO ITALIANO DI TECNOLOGIA
Country Italy
Call Details Starting Grant (StG), PE8, ERC-2020-STG
Summary BRAIN-ACT aims to develop the next generation of interactive biohybrid devices which will couple biological neuronal networks to organic artificial neurons. For the first time, neurons will interact with the device by active mechanical reshaping which will transduce in the maintenance of the electrical network connection strength (long term potentiation –LTP). This will be achieved by a) processing dynamic electroactive materials b) engineering the neuromorphic abiotic surface with biological synaptic receptors and c) intergrate an in vitro biohybrid synapses array to investigate the interplay at the interface between neuronal cells and their synaptic activity with dynamic electrically-smart materials.
BRAIN-ACT will pave the way for a new class of chip-based smart bioelectronic devices which will ‘have a shape of a neuron and act like a neuron’.
Over 10 million people are affected by neurodegenerative diseases like Parkinson’s and Alzheimer’s worldwide and show significant loss of functionalities in their daily life. Those are mainly related to faulty connections within the brain which reflects neuronal miscommunication regulated by billions of individual connections among pairs called synapses. The ability of synapses to strengthen or weaken over time, in response to increases or decreases in their activity is called synaptic plasticity and is regulated through electrical and biomechanical signals exchanged by neurons pairs. In vitro bioelectronic platforms have been devoted to monitor and stimulate those signals across neuronal network areas to characterize electrical activity and connectivity in a passive manner.
BRAIN-ACT will revolutionize the study of in vitro neuronal networks through active mechanical reshaping to establish optimal electrical signal exchange among neuronal cells. More broadly, the proposed project will define the fundamental conditions to unleash the potential of neuromorphic devices as implantable materials in to the brain.
Summary
BRAIN-ACT aims to develop the next generation of interactive biohybrid devices which will couple biological neuronal networks to organic artificial neurons. For the first time, neurons will interact with the device by active mechanical reshaping which will transduce in the maintenance of the electrical network connection strength (long term potentiation –LTP). This will be achieved by a) processing dynamic electroactive materials b) engineering the neuromorphic abiotic surface with biological synaptic receptors and c) intergrate an in vitro biohybrid synapses array to investigate the interplay at the interface between neuronal cells and their synaptic activity with dynamic electrically-smart materials.
BRAIN-ACT will pave the way for a new class of chip-based smart bioelectronic devices which will ‘have a shape of a neuron and act like a neuron’.
Over 10 million people are affected by neurodegenerative diseases like Parkinson’s and Alzheimer’s worldwide and show significant loss of functionalities in their daily life. Those are mainly related to faulty connections within the brain which reflects neuronal miscommunication regulated by billions of individual connections among pairs called synapses. The ability of synapses to strengthen or weaken over time, in response to increases or decreases in their activity is called synaptic plasticity and is regulated through electrical and biomechanical signals exchanged by neurons pairs. In vitro bioelectronic platforms have been devoted to monitor and stimulate those signals across neuronal network areas to characterize electrical activity and connectivity in a passive manner.
BRAIN-ACT will revolutionize the study of in vitro neuronal networks through active mechanical reshaping to establish optimal electrical signal exchange among neuronal cells. More broadly, the proposed project will define the fundamental conditions to unleash the potential of neuromorphic devices as implantable materials in to the brain.
Max ERC Funding
1 859 062 €
Duration
Start date: 2021-09-01, End date: 2026-08-31
Project acronym BrainBIT
Project All-optical brain-to-brain behaviour and information transfer
Researcher (PI) Francesco PAVONE
Host Institution (HI) UNIVERSITA DEGLI STUDI DI FIRENZE
Country Italy
Call Details Advanced Grant (AdG), PE2, ERC-2015-AdG
Summary Exchange of information between different brains usually takes place through the interaction between bodies and the external environment. The ultimate goal of this project is to establish a novel paradigm of brain-to-brain communication based on direct full-optical recording and controlled stimulation of neuronal activity in different subjects. To pursue this challenging objective, we propose to develop optical technologies well beyond the state of the art for simultaneous neuronal “reading” and “writing” across large volumes and with high spatial and temporal resolution, targeted to the transfer of advantageous behaviour in physiological and pathological conditions.
We will perform whole-brain high-resolution imaging in zebrafish larvae to disentangle the activity patterns related to different tasks. We will then use these patterns as stimulation templates in other larvae to investigate spatio-temporal subject-invariant signatures of specific behavioural states. This ‘pump and probe’ strategy will allow gaining deep insights into the complex relationship between neuronal activity and subject behaviour.
To move towards clinics-oriented studies on brain stimulation therapies, we will complement whole-brain experiments in zebrafish with large area functional imaging and optostimulation in mammals. We will investigate all-optical brain-to-brain information transfer to boost an advantageous behaviour, i.e. motor recovery, in a mouse model of stroke. Mice showing more effective responses to rehabilitation will provide neuronal activity templates to be elicited in other animals, in order to increase rehabilitation efficiency.
We strongly believe that the implementation of new technologies for all-optical transfer of behaviour between different subjects will offer unprecedented views of neuronal activity in healthy and injured brain, paving the way to more effective brain stimulation therapies.
Summary
Exchange of information between different brains usually takes place through the interaction between bodies and the external environment. The ultimate goal of this project is to establish a novel paradigm of brain-to-brain communication based on direct full-optical recording and controlled stimulation of neuronal activity in different subjects. To pursue this challenging objective, we propose to develop optical technologies well beyond the state of the art for simultaneous neuronal “reading” and “writing” across large volumes and with high spatial and temporal resolution, targeted to the transfer of advantageous behaviour in physiological and pathological conditions.
We will perform whole-brain high-resolution imaging in zebrafish larvae to disentangle the activity patterns related to different tasks. We will then use these patterns as stimulation templates in other larvae to investigate spatio-temporal subject-invariant signatures of specific behavioural states. This ‘pump and probe’ strategy will allow gaining deep insights into the complex relationship between neuronal activity and subject behaviour.
To move towards clinics-oriented studies on brain stimulation therapies, we will complement whole-brain experiments in zebrafish with large area functional imaging and optostimulation in mammals. We will investigate all-optical brain-to-brain information transfer to boost an advantageous behaviour, i.e. motor recovery, in a mouse model of stroke. Mice showing more effective responses to rehabilitation will provide neuronal activity templates to be elicited in other animals, in order to increase rehabilitation efficiency.
We strongly believe that the implementation of new technologies for all-optical transfer of behaviour between different subjects will offer unprecedented views of neuronal activity in healthy and injured brain, paving the way to more effective brain stimulation therapies.
Max ERC Funding
2 370 250 €
Duration
Start date: 2016-12-01, End date: 2022-05-31
Project acronym BrainCircuit-on-chip
Project Microfluidic chambers for establishing physiological and pathological human iPSC-derived neuronal circuits
Researcher (PI) Vania BROCCOLI
Host Institution (HI) OSPEDALE SAN RAFFAELE SRL
Country Italy
Call Details Proof of Concept (PoC), ERC-2018-PoC
Summary In vitro cultures of brain cells generate an ease and accessible ensemble of neurons In vitro cultures of brain cells generate an ease and accessible ensemble of neurons which has been invaluable for innumerable cellular and molecular studies. However, brain tissue dissociation and neuronal plating in vitro causes a complete loss of the original connections present into the brain tissue. Therefore, in vitro neuronal cultures do not allow to model specific neuronal circuits and study their specific properties. The same limitation is valid for human stem cell-derived neuronal cell cultures. In fact, several neuronal cell types can be differentiated from human iPS cells (iPSCs), but without any organization in terms of connectivity or synaptic specificity. We have established a microfluidic platform, named BrainCircuit-on-chip, which allows to growth human iPSC-derived neurons with a stereotyped organization and to establish patterned connections between different neuronal cell types. These microchips contain a central chamber where synapses between the two neuronal cell types are generated establishing the correct functional integration between the two neuronal populations. PDMS-microfluidic chambers are transparent and enables high-power and time-lapse imaging in the different neuronal compartments for sub-cellular and molecular studies. Moreover, the design of the central chamber enables to expose the synapses to chemicals or other cells types like astrocytes or microglia to study their effects on a specific class of synapses. We will produce a convenient kit with the frozen human neurons, the microfluidic chamber and a detailed protocol for generating the patterned neuronal circuits for research studies, compound testing and toxicology research.
Summary
In vitro cultures of brain cells generate an ease and accessible ensemble of neurons In vitro cultures of brain cells generate an ease and accessible ensemble of neurons which has been invaluable for innumerable cellular and molecular studies. However, brain tissue dissociation and neuronal plating in vitro causes a complete loss of the original connections present into the brain tissue. Therefore, in vitro neuronal cultures do not allow to model specific neuronal circuits and study their specific properties. The same limitation is valid for human stem cell-derived neuronal cell cultures. In fact, several neuronal cell types can be differentiated from human iPS cells (iPSCs), but without any organization in terms of connectivity or synaptic specificity. We have established a microfluidic platform, named BrainCircuit-on-chip, which allows to growth human iPSC-derived neurons with a stereotyped organization and to establish patterned connections between different neuronal cell types. These microchips contain a central chamber where synapses between the two neuronal cell types are generated establishing the correct functional integration between the two neuronal populations. PDMS-microfluidic chambers are transparent and enables high-power and time-lapse imaging in the different neuronal compartments for sub-cellular and molecular studies. Moreover, the design of the central chamber enables to expose the synapses to chemicals or other cells types like astrocytes or microglia to study their effects on a specific class of synapses. We will produce a convenient kit with the frozen human neurons, the microfluidic chamber and a detailed protocol for generating the patterned neuronal circuits for research studies, compound testing and toxicology research.
Max ERC Funding
150 000 €
Duration
Start date: 2019-08-01, End date: 2021-01-31
Project acronym BREAK
Project Blue light remote analgesia with K+ channels
Researcher (PI) Anna MORONI
Host Institution (HI) UNIVERSITA DEGLI STUDI DI MILANO
Country Italy
Call Details Proof of Concept (PoC), ERC-2019-PoC
Summary Chronic pain (CP) is a medical condition affecting around 20% of adults in Europe, characterised by an abnormal duration of pain (> 12 weeks) originally initiated by a trauma or illness. Despite significant progress, CP remains extremely hard to treat, with only one-third to two-thirds of patients reporting adequate some pain relief. This situation is even worse for neuropathic pain (NP), a specific class of CP affecting 8% of global population and whose origin mostly depend on peripheral or central nervous damage or disorder, which leads the brain to interpret as pain normally non painful stimuli. NP is difficult to treat due to the large number of entities involved (cells, genes and proteins working in synergy), which makes it hard to rapidly diagnose the exact cause of pain. Drugs targeting the central nervous system (e.g. antidepressants and opioids) provide only partial pain relief and are nonspecific, also causing side effects like addiction, and nausea, thus restraining their adoption for prolonged treatments.
BREAK is the first non-invasive inhibitory optogenetic tool specifically designed for NP treatment, with potential application to the whole spectrum of CP. BREAK is composed of a drug and an optical device. The protein BLINK2 is injected in the painful area using a genetically engineered virus, and respond to a specific blue light by silencing the addressed neuron. The lamp can be kept at some distance (cm) from the skin and no implant is required. Just some minutes of treatment results in hours of pain relief, making the invasiveness of BREAK far lower than actually existing solution.
A first version of BREAK has already demonstrated in in-vivo experiments on rats. During this project we plan to further develop the treatment and explore its commercial potential. In particular, leveraging from the experience of different partners, we will constitute a fruitful stakeholder network, including Academic centers, hospitals, pharma companies and investor
Summary
Chronic pain (CP) is a medical condition affecting around 20% of adults in Europe, characterised by an abnormal duration of pain (> 12 weeks) originally initiated by a trauma or illness. Despite significant progress, CP remains extremely hard to treat, with only one-third to two-thirds of patients reporting adequate some pain relief. This situation is even worse for neuropathic pain (NP), a specific class of CP affecting 8% of global population and whose origin mostly depend on peripheral or central nervous damage or disorder, which leads the brain to interpret as pain normally non painful stimuli. NP is difficult to treat due to the large number of entities involved (cells, genes and proteins working in synergy), which makes it hard to rapidly diagnose the exact cause of pain. Drugs targeting the central nervous system (e.g. antidepressants and opioids) provide only partial pain relief and are nonspecific, also causing side effects like addiction, and nausea, thus restraining their adoption for prolonged treatments.
BREAK is the first non-invasive inhibitory optogenetic tool specifically designed for NP treatment, with potential application to the whole spectrum of CP. BREAK is composed of a drug and an optical device. The protein BLINK2 is injected in the painful area using a genetically engineered virus, and respond to a specific blue light by silencing the addressed neuron. The lamp can be kept at some distance (cm) from the skin and no implant is required. Just some minutes of treatment results in hours of pain relief, making the invasiveness of BREAK far lower than actually existing solution.
A first version of BREAK has already demonstrated in in-vivo experiments on rats. During this project we plan to further develop the treatment and explore its commercial potential. In particular, leveraging from the experience of different partners, we will constitute a fruitful stakeholder network, including Academic centers, hospitals, pharma companies and investor
Max ERC Funding
150 000 €
Duration
Start date: 2019-12-01, End date: 2021-11-30