Project acronym 5HT-OPTOGENETICS
Project Optogenetic Analysis of Serotonin Function in the Mammalian Brain
Researcher (PI) Zachary Mainen
Host Institution (HI) FUNDACAO D. ANNA SOMMER CHAMPALIMAUD E DR. CARLOS MONTEZ CHAMPALIMAUD
Country Portugal
Call Details Advanced Grant (AdG), LS5, ERC-2009-AdG
Summary Serotonin (5-HT) is implicated in a wide spectrum of brain functions and disorders. However, its functions remain controversial and enigmatic. We suggest that past work on the 5-HT system have been significantly hampered by technical limitations in the selectivity and temporal resolution of the conventional pharmacological and electrophysiological methods that have been applied. We therefore propose to apply novel optogenetic methods that will allow us to overcome these limitations and thereby gain new insight into the biological functions of this important molecule. In preliminary studies, we have demonstrated that we can deliver exogenous proteins specifically to 5-HT neurons using viral vectors. Our objectives are to (1) record, (2) stimulate and (3) silence the activity of 5-HT neurons with high molecular selectivity and temporal precision by using genetically-encoded sensors, activators and inhibitors of neural function. These tools will allow us to monitor and control the 5-HT system in real-time in freely-behaving animals and thereby to establish causal links between information processing in 5-HT neurons and specific behaviors. In combination with quantitative behavioral assays, we will use this approach to define the role of 5-HT in sensory, motor and cognitive functions. The significance of the work is three-fold. First, we will establish a new arsenal of tools for probing the physiological and behavioral functions of 5-HT neurons. Second, we will make definitive tests of major hypotheses of 5-HT function. Third, we will have possible therapeutic applications. In this way, the proposed work has the potential for a major impact in research on the role of 5-HT in brain function and dysfunction.
Summary
Serotonin (5-HT) is implicated in a wide spectrum of brain functions and disorders. However, its functions remain controversial and enigmatic. We suggest that past work on the 5-HT system have been significantly hampered by technical limitations in the selectivity and temporal resolution of the conventional pharmacological and electrophysiological methods that have been applied. We therefore propose to apply novel optogenetic methods that will allow us to overcome these limitations and thereby gain new insight into the biological functions of this important molecule. In preliminary studies, we have demonstrated that we can deliver exogenous proteins specifically to 5-HT neurons using viral vectors. Our objectives are to (1) record, (2) stimulate and (3) silence the activity of 5-HT neurons with high molecular selectivity and temporal precision by using genetically-encoded sensors, activators and inhibitors of neural function. These tools will allow us to monitor and control the 5-HT system in real-time in freely-behaving animals and thereby to establish causal links between information processing in 5-HT neurons and specific behaviors. In combination with quantitative behavioral assays, we will use this approach to define the role of 5-HT in sensory, motor and cognitive functions. The significance of the work is three-fold. First, we will establish a new arsenal of tools for probing the physiological and behavioral functions of 5-HT neurons. Second, we will make definitive tests of major hypotheses of 5-HT function. Third, we will have possible therapeutic applications. In this way, the proposed work has the potential for a major impact in research on the role of 5-HT in brain function and dysfunction.
Max ERC Funding
2 318 636 €
Duration
Start date: 2010-07-01, End date: 2015-12-31
Project acronym 5HTCircuits
Project Modulation of cortical circuits and predictive neural coding by serotonin
Researcher (PI) Zachary Mainen
Host Institution (HI) FUNDACAO D. ANNA SOMMER CHAMPALIMAUD E DR. CARLOS MONTEZ CHAMPALIMAUD
Country Portugal
Call Details Advanced Grant (AdG), LS5, ERC-2014-ADG
Summary Serotonin (5-HT) is a central neuromodulator and a major target of therapeutic psychoactive drugs, but relatively little is known about how it modulates information processing in neural circuits. The theory of predictive coding postulates that the brain combines raw bottom-up sensory information with top-down information from internal models to make perceptual inferences about the world. We hypothesize, based on preliminary data and prior literature, that a role of 5-HT in this process is to report prediction errors and promote the suppression and weakening of erroneous internal models. We propose that it does this by inhibiting top-down relative to bottom-up cortical information flow. To test this hypothesis, we propose a set of experiments in mice performing olfactory perceptual tasks. Our specific aims are: (1) We will test whether 5-HT neurons encode sensory prediction errors. (2) We will test their causal role in using predictive cues to guide perceptual decisions. (3) We will characterize how 5-HT influences the encoding of sensory information by neuronal populations in the olfactory cortex and identify the underlying circuitry. (4) Finally, we will map the effects of 5-HT across the whole brain and use this information to target further causal manipulations to specific 5-HT projections. We accomplish these aims using state-of-the-art optogenetic, electrophysiological and imaging techniques (including 9.4T small-animal functional magnetic resonance imaging) as well as psychophysical tasks amenable to quantitative analysis and computational theory. Together, these experiments will tackle multiple facets of an important general computational question, bringing to bear an array of cutting-edge technologies to address with unprecedented mechanistic detail how 5-HT impacts neural coding and perceptual decision-making.
Summary
Serotonin (5-HT) is a central neuromodulator and a major target of therapeutic psychoactive drugs, but relatively little is known about how it modulates information processing in neural circuits. The theory of predictive coding postulates that the brain combines raw bottom-up sensory information with top-down information from internal models to make perceptual inferences about the world. We hypothesize, based on preliminary data and prior literature, that a role of 5-HT in this process is to report prediction errors and promote the suppression and weakening of erroneous internal models. We propose that it does this by inhibiting top-down relative to bottom-up cortical information flow. To test this hypothesis, we propose a set of experiments in mice performing olfactory perceptual tasks. Our specific aims are: (1) We will test whether 5-HT neurons encode sensory prediction errors. (2) We will test their causal role in using predictive cues to guide perceptual decisions. (3) We will characterize how 5-HT influences the encoding of sensory information by neuronal populations in the olfactory cortex and identify the underlying circuitry. (4) Finally, we will map the effects of 5-HT across the whole brain and use this information to target further causal manipulations to specific 5-HT projections. We accomplish these aims using state-of-the-art optogenetic, electrophysiological and imaging techniques (including 9.4T small-animal functional magnetic resonance imaging) as well as psychophysical tasks amenable to quantitative analysis and computational theory. Together, these experiments will tackle multiple facets of an important general computational question, bringing to bear an array of cutting-edge technologies to address with unprecedented mechanistic detail how 5-HT impacts neural coding and perceptual decision-making.
Max ERC Funding
2 486 074 €
Duration
Start date: 2016-01-01, End date: 2020-12-31
Project acronym AGNES
Project ACTIVE AGEING – RESILIENCE AND EXTERNAL SUPPORT AS MODIFIERS OF THE DISABLEMENT OUTCOME
Researcher (PI) Taina Tuulikki RANTANEN
Host Institution (HI) JYVASKYLAN YLIOPISTO
Country Finland
Call Details Advanced Grant (AdG), SH3, ERC-2015-AdG
Summary The goals are 1. To develop a scale assessing the diversity of active ageing with four dimensions that are ability (what people can do), activity (what people do do), ambition (what are the valued activities that people want to do), and autonomy (how satisfied people are with the opportunity to do valued activities); 2. To examine health and physical and psychological functioning as the determinants and social and build environment, resilience and personal skills as modifiers of active ageing; 3. To develop a multicomponent sustainable intervention aiming to promote active ageing (methods: counselling, information technology, help from volunteers); 4. To test the feasibility and effectiveness on the intervention; and 5. To study cohort effects on the phenotypes on the pathway to active ageing.
“If You Can Measure It, You Can Change It.” Active ageing assessment needs conceptual progress, which I propose to do. A quantifiable scale will be developed that captures the diversity of active ageing stemming from the WHO definition of active ageing as the process of optimizing opportunities for health and participation in the society for all people in line with their needs, goals and capacities as they age. I will collect cross-sectional data (N=1000, ages 75, 80 and 85 years) and model the pathway to active ageing with state-of-the art statistical methods. By doing this I will create novel knowledge on preconditions for active ageing. The collected cohort data will be compared to a pre-existing cohort data that was collected 25 years ago to obtain knowledge about changes over time in functioning of older people. A randomized controlled trial (N=200) will be conducted to assess the effectiveness of the envisioned intervention promoting active ageing through participation. The project will regenerate ageing research by launching a novel scale, by training young scientists, by creating new concepts and theory development and by producing evidence for active ageing promotion
Summary
The goals are 1. To develop a scale assessing the diversity of active ageing with four dimensions that are ability (what people can do), activity (what people do do), ambition (what are the valued activities that people want to do), and autonomy (how satisfied people are with the opportunity to do valued activities); 2. To examine health and physical and psychological functioning as the determinants and social and build environment, resilience and personal skills as modifiers of active ageing; 3. To develop a multicomponent sustainable intervention aiming to promote active ageing (methods: counselling, information technology, help from volunteers); 4. To test the feasibility and effectiveness on the intervention; and 5. To study cohort effects on the phenotypes on the pathway to active ageing.
“If You Can Measure It, You Can Change It.” Active ageing assessment needs conceptual progress, which I propose to do. A quantifiable scale will be developed that captures the diversity of active ageing stemming from the WHO definition of active ageing as the process of optimizing opportunities for health and participation in the society for all people in line with their needs, goals and capacities as they age. I will collect cross-sectional data (N=1000, ages 75, 80 and 85 years) and model the pathway to active ageing with state-of-the art statistical methods. By doing this I will create novel knowledge on preconditions for active ageing. The collected cohort data will be compared to a pre-existing cohort data that was collected 25 years ago to obtain knowledge about changes over time in functioning of older people. A randomized controlled trial (N=200) will be conducted to assess the effectiveness of the envisioned intervention promoting active ageing through participation. The project will regenerate ageing research by launching a novel scale, by training young scientists, by creating new concepts and theory development and by producing evidence for active ageing promotion
Max ERC Funding
2 044 364 €
Duration
Start date: 2016-09-01, End date: 2021-08-31
Project acronym BRAIN2BRAIN
Project Towards two-person neuroscience
Researcher (PI) Riitta Kyllikki Hari
Host Institution (HI) AALTO KORKEAKOULUSAATIO SR
Country Finland
Call Details Advanced Grant (AdG), LS5, ERC-2008-AdG
Summary Humans interact with other people throughout their lives. This project aims to demonstrate that the complex social shaping of the human brain can be adequately tackled only by taking a leap from the conven-tional single-person neuroscience to two-person neuroscience. We will (1) develop a conceptual framework and experimental setups for two-person neuroscience, (2) apply time-sensitive methods for studies of two interacting persons, monitoring both brain and autonomic nervous activity to also cover the brain body connection, (3) use gaze as an index of subject s attention to simplify signal analysis in natural environments, and (4) apply insights from two-person neuroscience into disorders of social interaction. Brain activity will be recorded with millisecond-accurate whole-scalp (306-channel) magnetoencepha-lography (MEG), associated with EEG, and with the millimeter-accurate 3-tesla functional magnetic reso-nance imaging (fMRI). Heart rate, respiration, galvanic skin response, and pupil diameter inform about body function. A new psychophysiological interaction setting will be built, comprising a two-person eye-tracking system. Novel analysis methods will be developed to follow the interaction and possible synchronization of the two persons signals. This uncoventional approach crosses borders of neuroscience, social psychology, psychophysiology, psychiatry, medical imaging, and signal analysis, with intriguing connections to old philosophical questions, such as intersubjectivity and emphatic attunement. The results could open an unprecedented window into human human, instead of just brain brain, interactions, helping to understand also social disorders, such as autism and schizophrenia. Further applications include master apprentice and patient therapist relationships. Advancing from studies of single persons towards two-person neuroscience shows promise of a break-through in understanding the dynamic social shaping of human brain and mind.
Summary
Humans interact with other people throughout their lives. This project aims to demonstrate that the complex social shaping of the human brain can be adequately tackled only by taking a leap from the conven-tional single-person neuroscience to two-person neuroscience. We will (1) develop a conceptual framework and experimental setups for two-person neuroscience, (2) apply time-sensitive methods for studies of two interacting persons, monitoring both brain and autonomic nervous activity to also cover the brain body connection, (3) use gaze as an index of subject s attention to simplify signal analysis in natural environments, and (4) apply insights from two-person neuroscience into disorders of social interaction. Brain activity will be recorded with millisecond-accurate whole-scalp (306-channel) magnetoencepha-lography (MEG), associated with EEG, and with the millimeter-accurate 3-tesla functional magnetic reso-nance imaging (fMRI). Heart rate, respiration, galvanic skin response, and pupil diameter inform about body function. A new psychophysiological interaction setting will be built, comprising a two-person eye-tracking system. Novel analysis methods will be developed to follow the interaction and possible synchronization of the two persons signals. This uncoventional approach crosses borders of neuroscience, social psychology, psychophysiology, psychiatry, medical imaging, and signal analysis, with intriguing connections to old philosophical questions, such as intersubjectivity and emphatic attunement. The results could open an unprecedented window into human human, instead of just brain brain, interactions, helping to understand also social disorders, such as autism and schizophrenia. Further applications include master apprentice and patient therapist relationships. Advancing from studies of single persons towards two-person neuroscience shows promise of a break-through in understanding the dynamic social shaping of human brain and mind.
Max ERC Funding
2 489 643 €
Duration
Start date: 2009-01-01, End date: 2014-12-31
Project acronym BrainDrain
Project Translational implications of the discovery of brain-draining lymphatics
Researcher (PI) Kari ALITALO
Host Institution (HI) HELSINGIN YLIOPISTO
Country Finland
Call Details Advanced Grant (AdG), LS7, ERC-2016-ADG
Summary In 2010, 800 billion Euros was spent on brain diseases in Europe and the cost is expected to increase due to the aging population. – Here I propose to exploit our new discovery for research to alleviate this disease burden. In work selected by Nature Medicine among the top 10 ”Notable Advances” and by Science as one of the 10 ”Breakthroughs of the year” 2015, we discovered a meningeal lymphatic vascular system that serves brain homeostasis. We want to reassess current concepts about cerebrovascular dynamics, fluid drainage and cellular trafficking in physiological conditions, in Alzheimer’s disease mouse models and in human postmortem tissues. First, we will study the development and properties of meningeal lymphatics and how they are sustained during aging. We then want to analyse the clearance of macromolecules and protein aggregates in Alzheimer’s disease in mice that lack the newly discovered meningeal lymphatic drainage system. We will study if growth factor-mediated expansion of lymphatic vessels alleviates the parenchymal accumulation of neurotoxic amyloid beta and pathogenesis of Alzheimer’s disease and brain damage after traumatic brain injury. We will further analyse the role of lymphangiogenic growth factors and lymphatic vessels in brain solute clearance, immune cell trafficking and in a mouse model of multiple sclerosis. The meningeal lymphatics could be involved in a number of neurodegenerative and neuroinflammatory diseases of considerable human and socioeconomic burden. Several of our previous concepts have already been translated to clinical development and we aim to develop proof-of-principle therapeutic concepts in this project. I feel that we are just now in a unique position to advance frontline European translational biomedical research in this suddenly emerging field, which has received great attention worldwide.
Summary
In 2010, 800 billion Euros was spent on brain diseases in Europe and the cost is expected to increase due to the aging population. – Here I propose to exploit our new discovery for research to alleviate this disease burden. In work selected by Nature Medicine among the top 10 ”Notable Advances” and by Science as one of the 10 ”Breakthroughs of the year” 2015, we discovered a meningeal lymphatic vascular system that serves brain homeostasis. We want to reassess current concepts about cerebrovascular dynamics, fluid drainage and cellular trafficking in physiological conditions, in Alzheimer’s disease mouse models and in human postmortem tissues. First, we will study the development and properties of meningeal lymphatics and how they are sustained during aging. We then want to analyse the clearance of macromolecules and protein aggregates in Alzheimer’s disease in mice that lack the newly discovered meningeal lymphatic drainage system. We will study if growth factor-mediated expansion of lymphatic vessels alleviates the parenchymal accumulation of neurotoxic amyloid beta and pathogenesis of Alzheimer’s disease and brain damage after traumatic brain injury. We will further analyse the role of lymphangiogenic growth factors and lymphatic vessels in brain solute clearance, immune cell trafficking and in a mouse model of multiple sclerosis. The meningeal lymphatics could be involved in a number of neurodegenerative and neuroinflammatory diseases of considerable human and socioeconomic burden. Several of our previous concepts have already been translated to clinical development and we aim to develop proof-of-principle therapeutic concepts in this project. I feel that we are just now in a unique position to advance frontline European translational biomedical research in this suddenly emerging field, which has received great attention worldwide.
Max ERC Funding
2 420 429 €
Duration
Start date: 2017-08-01, End date: 2022-07-31
Project acronym CHALLENGE
Project Persistent bullying cases: towards tailored intervention approaches to maximize efficiency
Researcher (PI) Christina SALMIVALLI
Host Institution (HI) TURUN YLIOPISTO
Country Finland
Call Details Advanced Grant (AdG), SH3, ERC-2019-ADG
Summary Bullying in schools is widespread, with adverse effects on youth and high costs for societies. Research on bullying prevention has so far focused on average effects of anti-bullying programs and mainly concerned universal, preventive measures. While important, this has overshadowed attempts to uncover how exactly school personnel intervene in particular bullying cases and when and why that fails. CHALLENGE will open up new research horizons by shifting the focus from average program effects to the characteristics and conditions of youth who remain victimized or continue bullying despite targeted interventions. The next big questions in the field are tackled in four work packages:
WP1 uncovers the key features of persistent bullying, such as the extent to which it is due to school-level factors or rather varies across bullying cases (within schools).
WP2 elucidates the plight of persistent victims by testing why victimized youth are most maladjusted in contexts where the overall level of victimization is decreasing (healthy context paradox, Garandeau & Salmivalli, 2019).
WP3 tests the efficacy of different targeted interventions in real-life conditions, uncovering challenge factors that increase the risk of a bullying case remaining unresolved. Moreover, it tests how youth characteristics affect their cognitive, emotional and motivational responses to different interventions.
WP4 utilizes molecular genetics to test genetic susceptibility to intervention effects at the individual level.
CHALLENGE uses quantitative, qualitative, and DNA analyses, combines longitudinal and experimental designs, and harnesses novel tools to collect real-time intervention data and to register children’s responses to interventions. It bridges the perspectives of developmental and social psychology, child psychiatry, and genetics, builds theory on persistent bullying and enables the development of tailored measures for specific target groups where available interventions have failed
Summary
Bullying in schools is widespread, with adverse effects on youth and high costs for societies. Research on bullying prevention has so far focused on average effects of anti-bullying programs and mainly concerned universal, preventive measures. While important, this has overshadowed attempts to uncover how exactly school personnel intervene in particular bullying cases and when and why that fails. CHALLENGE will open up new research horizons by shifting the focus from average program effects to the characteristics and conditions of youth who remain victimized or continue bullying despite targeted interventions. The next big questions in the field are tackled in four work packages:
WP1 uncovers the key features of persistent bullying, such as the extent to which it is due to school-level factors or rather varies across bullying cases (within schools).
WP2 elucidates the plight of persistent victims by testing why victimized youth are most maladjusted in contexts where the overall level of victimization is decreasing (healthy context paradox, Garandeau & Salmivalli, 2019).
WP3 tests the efficacy of different targeted interventions in real-life conditions, uncovering challenge factors that increase the risk of a bullying case remaining unresolved. Moreover, it tests how youth characteristics affect their cognitive, emotional and motivational responses to different interventions.
WP4 utilizes molecular genetics to test genetic susceptibility to intervention effects at the individual level.
CHALLENGE uses quantitative, qualitative, and DNA analyses, combines longitudinal and experimental designs, and harnesses novel tools to collect real-time intervention data and to register children’s responses to interventions. It bridges the perspectives of developmental and social psychology, child psychiatry, and genetics, builds theory on persistent bullying and enables the development of tailored measures for specific target groups where available interventions have failed
Max ERC Funding
2 424 001 €
Duration
Start date: 2020-10-01, End date: 2025-09-30
Project acronym CleverGenes
Project Novel Gene Therapy Based on the Activation of Endogenous Genes for the Treatment of Ischemia - Concepts of endogenetherapy, release of promoter pausing, promoter-targeted ncRNAs and nuclear RNAi
Researcher (PI) Seppo Ylae-Herttuala
Host Institution (HI) ITA-SUOMEN YLIOPISTO
Country Finland
Call Details Advanced Grant (AdG), LS7, ERC-2014-ADG
Summary Background: Therapeutic angiogenesis with vascular endothelial growth factors (VEGFs) has great potential to become a novel, minimally invasive new treatment for a large number of patients with severe myocardial ischemia. However, this requires development of new technology. Advancing state-of-the-art: We propose a paradigm shift in gene therapy for chronic ischemia by activating endogenous VEGF-A,-B and -C genes and angiogenic transcription programs from the native promoters instead of gene transfer of exogenous cDNA to target tissues. We will develop a new platform technology (endogenetherapy) based on our novel concept of the release of promoter pausing and new promoter-targeted upregulating short hairpinRNAs, tissue-specific superenhancerRNAs activating specific transcription centers involving gene clusters in different chromosomal regions, small circularRNAs formed from self-splicing exons-introns that can be regulated with oligonucleotides and small molecules such as metabolites, nuclear RNAi vectors and specific CRISPR/gRNAmutatedCas9-VP16 technology with an ability to target integration into genomic safe harbor sites. After preclinical studies in mice and in a newly developed chronic cardiac ischemia model in pigs with special emphasis on the analysis of clinically relevant blood flow, metabolic and functional outcomes based on MRI, ultrasound, photoacoustic and PET imaging, the best construct will be taken to a phase I clinical study in patients with severe myocardial ischemia. Since endogenetherapy also involves epigenetic changes, which are reversible and long-lasting, we expect to efficiently activate natural angiogenic programs. Significance: If successful, this approach will begin a new era in gene therapy. Since there is a clear lack of technology capable of targeted upregulation of endogenous genes, the novel endogenetherapy approach may become widely applicable beyond cardiovascular diseases also in other areas of medicine and biomedical research.
Summary
Background: Therapeutic angiogenesis with vascular endothelial growth factors (VEGFs) has great potential to become a novel, minimally invasive new treatment for a large number of patients with severe myocardial ischemia. However, this requires development of new technology. Advancing state-of-the-art: We propose a paradigm shift in gene therapy for chronic ischemia by activating endogenous VEGF-A,-B and -C genes and angiogenic transcription programs from the native promoters instead of gene transfer of exogenous cDNA to target tissues. We will develop a new platform technology (endogenetherapy) based on our novel concept of the release of promoter pausing and new promoter-targeted upregulating short hairpinRNAs, tissue-specific superenhancerRNAs activating specific transcription centers involving gene clusters in different chromosomal regions, small circularRNAs formed from self-splicing exons-introns that can be regulated with oligonucleotides and small molecules such as metabolites, nuclear RNAi vectors and specific CRISPR/gRNAmutatedCas9-VP16 technology with an ability to target integration into genomic safe harbor sites. After preclinical studies in mice and in a newly developed chronic cardiac ischemia model in pigs with special emphasis on the analysis of clinically relevant blood flow, metabolic and functional outcomes based on MRI, ultrasound, photoacoustic and PET imaging, the best construct will be taken to a phase I clinical study in patients with severe myocardial ischemia. Since endogenetherapy also involves epigenetic changes, which are reversible and long-lasting, we expect to efficiently activate natural angiogenic programs. Significance: If successful, this approach will begin a new era in gene therapy. Since there is a clear lack of technology capable of targeted upregulation of endogenous genes, the novel endogenetherapy approach may become widely applicable beyond cardiovascular diseases also in other areas of medicine and biomedical research.
Max ERC Funding
2 437 500 €
Duration
Start date: 2015-11-01, End date: 2021-04-30
Project acronym CROWDED-PRO-LIPIDS
Project Computational Perspective to Dynamical Protein-Lipid Complexes under Crowded Conditions
Researcher (PI) Ilpo Tapio Vattulainen
Host Institution (HI) TTY-SAATIO
Country Finland
Call Details Advanced Grant (AdG), PE3, ERC-2011-ADG_20110209
Summary "One of the great challenges is to understand how cellular functions emerge in cell membrane systems. Unlocking this mystery is the key to the vast majority of human diseases. The current view is based on a static picture where membrane proteins in protein-poor membranes interact with a few specific lipids, while in reality the situation is much more complicated. This ambitious project aims for a breakthrough by changing the present paradigm. The objective is to focus on the dynamical interplay between lipids and proteins under crowded conditions, paving the way for understanding the dynamics of lipid-protein complexes and their resulting functions. The objectives are outstanding and contain a high risk, with exceptional gain. The main goal is better understanding of the physical principles that give rise to cellular functions, with a strong impact to clarify the relevance of dynamical lipid-protein interactions in cellular processes related to health and disease. For this purpose, the grand themes chosen for this project are lipoproteins coupled to cardiovascular disease (“good” and “bad” cholesterol) and the function of especially cholesterol and glycolipids with membrane proteins. In order to meet these goals, the applicant employs state-of-the-art simulation techniques that comprise quantum-mechanical, classical atomistic and coarse-grained simulation methods to elucidate the complex biological phenomena associated with lipid-protein systems. The simulations cover atomistic and molecular details, over time scales from femtoseconds up to milliseconds. The theory & simulation group lead by PI comprises expertise in a truly cross- and multi-disciplinary manner, and it strongly collaborates with some of the leading experimental teams in biomedical sciences, cell biology, structural biology, and membrane biophysics."
Summary
"One of the great challenges is to understand how cellular functions emerge in cell membrane systems. Unlocking this mystery is the key to the vast majority of human diseases. The current view is based on a static picture where membrane proteins in protein-poor membranes interact with a few specific lipids, while in reality the situation is much more complicated. This ambitious project aims for a breakthrough by changing the present paradigm. The objective is to focus on the dynamical interplay between lipids and proteins under crowded conditions, paving the way for understanding the dynamics of lipid-protein complexes and their resulting functions. The objectives are outstanding and contain a high risk, with exceptional gain. The main goal is better understanding of the physical principles that give rise to cellular functions, with a strong impact to clarify the relevance of dynamical lipid-protein interactions in cellular processes related to health and disease. For this purpose, the grand themes chosen for this project are lipoproteins coupled to cardiovascular disease (“good” and “bad” cholesterol) and the function of especially cholesterol and glycolipids with membrane proteins. In order to meet these goals, the applicant employs state-of-the-art simulation techniques that comprise quantum-mechanical, classical atomistic and coarse-grained simulation methods to elucidate the complex biological phenomena associated with lipid-protein systems. The simulations cover atomistic and molecular details, over time scales from femtoseconds up to milliseconds. The theory & simulation group lead by PI comprises expertise in a truly cross- and multi-disciplinary manner, and it strongly collaborates with some of the leading experimental teams in biomedical sciences, cell biology, structural biology, and membrane biophysics."
Max ERC Funding
1 920 334 €
Duration
Start date: 2012-05-01, End date: 2017-04-30
Project acronym DAMAGECONTROL
Project Tissue Damage Control Regulates The Pathogenesis of Immune Mediated Inflammatory Diseases
Researcher (PI) Miguel Parreira Soares
Host Institution (HI) FUNDACAO CALOUSTE GULBENKIAN
Country Portugal
Call Details Advanced Grant (AdG), LS6, ERC-2011-ADG_20110310
Summary "We propose to study evolutionarily conserved stress-responsive protective mechanisms that limit the extent of tissue damage caused by pathogens or by the innate as well as adaptive immune response elicited by those pathogens, which, without a countervailing response would lead to irreversible tissue damage and disease. We refer to these protective mechanisms as “tissue damage control”, and will argue they are an essential component of immunity that allows the effector mechanisms involved in pathogen clearance to operate without causing disease. This proposal aims at identifying and characterizing the mechanism of action of stress-induced genetic programs conferring tissue damage control and to relate those to the pathogenesis of different immune mediated inflammatory diseases. We hypothesize that these genetic programs share as a common denominator their regulation by a restricted number of evolutionary conserved transcription factors that act as “master regulators” of different protective responses to specific forms of stress. We will use “loss” and “gain” of function approaches targeting these master regulators in mice to characterize their function and identify stress-responsive genes conferring tissue metabolic adaptation, cytoprotection and/or tissue regeneration, all of which are components of tissue damage control. Expression of these master regulators likely impacts the pathogenesis of immune mediated inflammatory conditions, as tested under this proposal for infectious as well as autoimmune-like diseases. This proposal should unveil an essential component of immunity that uncouples pathogen clearance from tissue damage and disease, namely tissue damage control, providing new therapeutic targets to suppress the pathogenesis of a broad range of immune mediated inflammatory diseases."
Summary
"We propose to study evolutionarily conserved stress-responsive protective mechanisms that limit the extent of tissue damage caused by pathogens or by the innate as well as adaptive immune response elicited by those pathogens, which, without a countervailing response would lead to irreversible tissue damage and disease. We refer to these protective mechanisms as “tissue damage control”, and will argue they are an essential component of immunity that allows the effector mechanisms involved in pathogen clearance to operate without causing disease. This proposal aims at identifying and characterizing the mechanism of action of stress-induced genetic programs conferring tissue damage control and to relate those to the pathogenesis of different immune mediated inflammatory diseases. We hypothesize that these genetic programs share as a common denominator their regulation by a restricted number of evolutionary conserved transcription factors that act as “master regulators” of different protective responses to specific forms of stress. We will use “loss” and “gain” of function approaches targeting these master regulators in mice to characterize their function and identify stress-responsive genes conferring tissue metabolic adaptation, cytoprotection and/or tissue regeneration, all of which are components of tissue damage control. Expression of these master regulators likely impacts the pathogenesis of immune mediated inflammatory conditions, as tested under this proposal for infectious as well as autoimmune-like diseases. This proposal should unveil an essential component of immunity that uncouples pathogen clearance from tissue damage and disease, namely tissue damage control, providing new therapeutic targets to suppress the pathogenesis of a broad range of immune mediated inflammatory diseases."
Max ERC Funding
2 306 197 €
Duration
Start date: 2012-04-01, End date: 2017-03-31
Project acronym E-DESIGN
Project Artificial designer materials
Researcher (PI) Peter LILJEROTH
Host Institution (HI) AALTO KORKEAKOULUSAATIO SR
Country Finland
Call Details Advanced Grant (AdG), PE3, ERC-2017-ADG
Summary Constructing designer materials where the atomic geometry, interactions, magnetism and other relevant parameters can be precisely controlled is becoming reality. I will reach this aim by positioning every atom with the tip of a scanning probe microscope, or by using molecular self-assembly to reach the desired structures. I will realize and engineer several novel quantum materials hosting exotic electronic phases: 2D topological insulators in metal-organic frameworks (MOF) and 2D topological superconductors in hybrid molecule-superconductor structures. These classes of materials have not yet been experimentally realized but could enable novel spintronic and quantum computing devices. In addition, we will realize a tuneable platform for quantum simulation in solid-state artificial lattices, which could open a whole new area in this field.
I will employ a broad experimental approach to reach the above targets by utilizing molecular self-assembly and scanning probe microscopy -based atom/molecule manipulation. The systems are characterized using low-temperature atomic force microscopy (AFM) and scanning tunneling microscopy (STM). My group is one of the leading groups in these topics globally. We have initial results on the topics discussed in this proposal and are thus in a unique position to make ground-breaking contributions in realizing designer quantum materials.
The artificial designer materials we study are characterized by the engineered electronic response with atomically precise geometries, lattice symmetries and controlled interactions. Such ingredients can result in ultimately controllable materials that have large, robust and quick responses to small stimuli with applications in nanoelectronics, flexible electronics, high-selectivity and high-sensitivity sensors, and optoelectronic components. Longer term, the biggest impact is expected through a profound change in the way we view materials and what can be achieved through designer materials approach.
Summary
Constructing designer materials where the atomic geometry, interactions, magnetism and other relevant parameters can be precisely controlled is becoming reality. I will reach this aim by positioning every atom with the tip of a scanning probe microscope, or by using molecular self-assembly to reach the desired structures. I will realize and engineer several novel quantum materials hosting exotic electronic phases: 2D topological insulators in metal-organic frameworks (MOF) and 2D topological superconductors in hybrid molecule-superconductor structures. These classes of materials have not yet been experimentally realized but could enable novel spintronic and quantum computing devices. In addition, we will realize a tuneable platform for quantum simulation in solid-state artificial lattices, which could open a whole new area in this field.
I will employ a broad experimental approach to reach the above targets by utilizing molecular self-assembly and scanning probe microscopy -based atom/molecule manipulation. The systems are characterized using low-temperature atomic force microscopy (AFM) and scanning tunneling microscopy (STM). My group is one of the leading groups in these topics globally. We have initial results on the topics discussed in this proposal and are thus in a unique position to make ground-breaking contributions in realizing designer quantum materials.
The artificial designer materials we study are characterized by the engineered electronic response with atomically precise geometries, lattice symmetries and controlled interactions. Such ingredients can result in ultimately controllable materials that have large, robust and quick responses to small stimuli with applications in nanoelectronics, flexible electronics, high-selectivity and high-sensitivity sensors, and optoelectronic components. Longer term, the biggest impact is expected through a profound change in the way we view materials and what can be achieved through designer materials approach.
Max ERC Funding
2 374 922 €
Duration
Start date: 2018-09-01, End date: 2023-08-31