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Neural migration: Which cells advance and which stay behind? This project aims to examine the neural crest cells that colonise the developing gut and to identify why some cells advance while others stay behind to populate a region. Directed cell migration is essential for normal development, including for the nervous system. In most of the migratory cell populations that have been analysed to date, all of the cells migrate as a collective from one location to another. However, there are also mi ....Neural migration: Which cells advance and which stay behind? This project aims to examine the neural crest cells that colonise the developing gut and to identify why some cells advance while others stay behind to populate a region. Directed cell migration is essential for normal development, including for the nervous system. In most of the migratory cell populations that have been analysed to date, all of the cells migrate as a collective from one location to another. However, there are also migratory cell populations that must populate the areas through which they migrate, and thus some cells get left behind while others advance. The planned data are likely to be relevant to other cell populations that also populate the areas through which they migrate, including neural crest-derived melanocytes and Schwann cell precursors.Read moreRead less
Modelling the human nervous system with human pluripotent stem cells. The human nervous system is one of the most complex structures evolved to date. In order to understand how it functions, and dysfunctions in a diseased state, it is fundamental to decipher how it develops to generate various neuronal populations that form this elaborate network. Human stem cells provide a valuable source to study such processes. The aim of this project is to use human stem cells to study how early progenitor c ....Modelling the human nervous system with human pluripotent stem cells. The human nervous system is one of the most complex structures evolved to date. In order to understand how it functions, and dysfunctions in a diseased state, it is fundamental to decipher how it develops to generate various neuronal populations that form this elaborate network. Human stem cells provide a valuable source to study such processes. The aim of this project is to use human stem cells to study how early progenitor cell types that structure the nervous system are generated and how their neuronal derivatives form connectivity and functional synapses. The outcome of these studies is that we will establish a cellular model of human neurogenesis that can be utilised to study developmental disease processes.Read moreRead less
Subcellular recruitment of a RhoA ubiquitination complex by Rnd proteins. This study addresses a novel molecular mechanism through which members of the Rnd family of GTP-binding proteins regulate the morphology and migration of immature nerve cells of the developing nervous system. This study has broad implications for the understanding of cell migration during embryo development, as well as in health and disease.
Electrical activity in early enteric neuron development. Intestinal movements and secretion are critical to the good health and nutrition of both humans and animals. These functions are regulated by a large nervous system contained within the intestinal wall, the enteric nervous system. This project will identify how enteric nerve cells develop and how their behaviour influences the development of other enteric nerve cells. This is will provide an important base for more applied research aime ....Electrical activity in early enteric neuron development. Intestinal movements and secretion are critical to the good health and nutrition of both humans and animals. These functions are regulated by a large nervous system contained within the intestinal wall, the enteric nervous system. This project will identify how enteric nerve cells develop and how their behaviour influences the development of other enteric nerve cells. This is will provide an important base for more applied research aimed at developing treatments for diseases like chronic constipation and irritable bowel syndrome. It will also contribute to the growing knowledge about how epigenetic factors can modify genetically programmed development within the nervous system.Read moreRead less
Cell cycle and enteric neuron and glial differentiation. Enteric neurons arise from a very small starting population of precursor (neural crest) cells, most of which emigrate from the hindbrain, and colonise the developing gut. Over a protracted period of time the precursors proliferate and differentiate into glia and many different types of neurons. Cell cycle exit is a critical event in the development of many neuron types, largely because the time at which cells exit from the cell cycle lim ....Cell cycle and enteric neuron and glial differentiation. Enteric neurons arise from a very small starting population of precursor (neural crest) cells, most of which emigrate from the hindbrain, and colonise the developing gut. Over a protracted period of time the precursors proliferate and differentiate into glia and many different types of neurons. Cell cycle exit is a critical event in the development of many neuron types, largely because the time at which cells exit from the cell cycle limits the number of neurons that will be generated. We will determine whether exit from the cell cycle contributes to the differentiation and specification of enteric neurons and glia.Read moreRead less
The jugular vagal sensory connectome regulating visceral function. Internal body organs have a rich supply of sensory nerve fibres that serve important roles in monitoring the local environment for normal and abnormal sensory stimuli. These nerve fibres have different origins and wire into brain circuits that regulate widely diverse physiological responses. In this study we aim to study the neural circuits and responses mediated by a group of these sensory nerves which has not been investigated ....The jugular vagal sensory connectome regulating visceral function. Internal body organs have a rich supply of sensory nerve fibres that serve important roles in monitoring the local environment for normal and abnormal sensory stimuli. These nerve fibres have different origins and wire into brain circuits that regulate widely diverse physiological responses. In this study we aim to study the neural circuits and responses mediated by a group of these sensory nerves which has not been investigated appreciably in the past. We believe that these sensory neural circuits will reveal important new insights into how internal organs perform their diverse and essential functions to sustain life.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE230101079
Funder
Australian Research Council
Funding Amount
$453,528.00
Summary
New insights into how the brain interprets visceral and somatic sensations. Sensory nerve fibres monitor normal and abnormal stimuli in our body tissues, sending this information to the brain. I study the sensory pathways of the respiratory system which protect the lungs from harmful stimuli, such as inhaled pollutants or smoke. I discovered that respiratory sensory pathways interact with sensory circuits in the brain arising from other body tissues. The goal of this project is to investigate on ....New insights into how the brain interprets visceral and somatic sensations. Sensory nerve fibres monitor normal and abnormal stimuli in our body tissues, sending this information to the brain. I study the sensory pathways of the respiratory system which protect the lungs from harmful stimuli, such as inhaled pollutants or smoke. I discovered that respiratory sensory pathways interact with sensory circuits in the brain arising from other body tissues. The goal of this project is to investigate one example of this interaction; the convergence of visceral and somatic sensory pathways onto a brain circuit that regulates the intensity of the sensations that are experienced. This project addresses the fundamental question of how the brain processes two competing noxious sensations.Read moreRead less
Using musical training to examine brain plasticity and cognitive skill development. Until recently, the brain was likened to a computer - hard-wired with minimal response to injury. Exciting new research is altering this view, showing that the brain can change in response to the environment. This study will use sophisticated brain scanning techniques with musicians who have rare, absolute pitch ability. This ability develops with exposure to early training during a critical time period. We will ....Using musical training to examine brain plasticity and cognitive skill development. Until recently, the brain was likened to a computer - hard-wired with minimal response to injury. Exciting new research is altering this view, showing that the brain can change in response to the environment. This study will use sophisticated brain scanning techniques with musicians who have rare, absolute pitch ability. This ability develops with exposure to early training during a critical time period. We will test the relationship between this exposure and changes in brain shape and function. The results will tell us about the interaction between genes and environment, and the way normal development can be enhanced by early experiences.Read moreRead less
Wiring the gut's nervous system: formation and maturation of synapses. This project aims to determine how nerve circuits controlling intestinal functions develop; specifically how communication between specific nerve cells is established once they appear in the embryonic gut. It will fill a major hole in existing knowledge of mechanisms regulating the development of normal digestive behaviours.
Understanding multiday cycles underpinning human physiology. We recently discovered long-term rhythms modulating activities of our brains and hearts ranging in duration from 3-60 days. The cause of these longer, ‘multiday cycles’ remain unknown. This project aims to understand; causes of multiday cycles (measuring the nervous and autonomic nervous system), their effects (on cognition, sleep, and stress), and quantify the relationship between coupled cyclical systems. The research outcomes can pr ....Understanding multiday cycles underpinning human physiology. We recently discovered long-term rhythms modulating activities of our brains and hearts ranging in duration from 3-60 days. The cause of these longer, ‘multiday cycles’ remain unknown. This project aims to understand; causes of multiday cycles (measuring the nervous and autonomic nervous system), their effects (on cognition, sleep, and stress), and quantify the relationship between coupled cyclical systems. The research outcomes can provide fundamental new knowledge about cyclic dynamics governing human physiology, leading to improved rigour in life sciences research. Commercial outcomes include technology to optimise individual productivity, learning, health, and wellbeing based on physiological cycles, with diverse benefits to society.Read moreRead less