The role of epigenetics in the early gestational programming of adult phenotype by ethanol. The concept of foetal programming is changing the way we think about the aetiology of complex disease in adults. Our studies would emphasise that adverse events during pregnancy can have long-term health implications, with concomitant social and economic consequences. In America, the prevalence of foetal alcohol syndrome is comparable with rates for Down syndrome. The Aboriginal community in Australia ....The role of epigenetics in the early gestational programming of adult phenotype by ethanol. The concept of foetal programming is changing the way we think about the aetiology of complex disease in adults. Our studies would emphasise that adverse events during pregnancy can have long-term health implications, with concomitant social and economic consequences. In America, the prevalence of foetal alcohol syndrome is comparable with rates for Down syndrome. The Aboriginal community in Australia has been identified as a high-risk group. The knowledge gained from this project could aid in the development of screening strategies to predict the likelihood of disease developing later in life, providing an opportunity for presymptomatic healthcare.Read moreRead less
Does developmental noise have an epigenetic basis? One's ultimate phenotype is the result of a combination of genotype and environment, and includes a poorly understood component termed ?developmental noise?. The molecular basis of developmental noise remains unknown, but it appears to be established in early development and to be retained for the life of the organism. We propose that the molecular basis of developmental noise is the epigenetic state of the genome. The stochastic nature of th ....Does developmental noise have an epigenetic basis? One's ultimate phenotype is the result of a combination of genotype and environment, and includes a poorly understood component termed ?developmental noise?. The molecular basis of developmental noise remains unknown, but it appears to be established in early development and to be retained for the life of the organism. We propose that the molecular basis of developmental noise is the epigenetic state of the genome. The stochastic nature of the establishment of epigenetic state, combined with its heritability during mitosis, provides all the essential components for developmental noise. If our hypothesis proves correct, our work will have a major impact on the understanding of one of the most basic concepts in genetics.Read moreRead less
Novel roles for importin alpha proteins in the nucleus. The project will provide fundamental new information about how changes in cell function are influenced by importin (IMP) alpha proteins, both through changes in gene transcription and through alterations to intracellular transport. These findings will inform areas of national priority that include Aging Well, Aging Productively with specific regard to cellular stress responses, and A Healthy Start to Life in the context of production of hea ....Novel roles for importin alpha proteins in the nucleus. The project will provide fundamental new information about how changes in cell function are influenced by importin (IMP) alpha proteins, both through changes in gene transcription and through alterations to intracellular transport. These findings will inform areas of national priority that include Aging Well, Aging Productively with specific regard to cellular stress responses, and A Healthy Start to Life in the context of production of healthy, genetically intact sperm. This project draws together an international team to investigate a phenomenon with implications for new understanding of normal developmental processes and the response of cells/tissues to disease conditions.Read moreRead less
Marsupial germ cells and genes. Germ cells are the most fascinating cells in the body, since theirs is the unique responsibility for transmitting life from generation to generation. Studies in mice have suggested that position in the embryo determines their origin, but the early embryology of the mouse is so different from that of other mammals that the events need confirming and extending in another species. The simplified embryology of the tammar wallaby makes it ideal for studying one of the ....Marsupial germ cells and genes. Germ cells are the most fascinating cells in the body, since theirs is the unique responsibility for transmitting life from generation to generation. Studies in mice have suggested that position in the embryo determines their origin, but the early embryology of the mouse is so different from that of other mammals that the events need confirming and extending in another species. The simplified embryology of the tammar wallaby makes it ideal for studying one of the most fundamental questions in the whole of biology: what is the basis for the primal distinction between sex and soma?Read moreRead less
How does the unilaminar blastocyst form an embryo? Marsupials are synonymous with Australia and they are scientifically amazing. An understanding how the single-layered marsupial blastocyst cells are directed to form the complex organisation of an embryo would help us understand the biology underlying the developmental potential of all cells. Understanding these processes is not only of great fundamental interest to developmental biology but also for the development of embryonic stem cell lines. ....How does the unilaminar blastocyst form an embryo? Marsupials are synonymous with Australia and they are scientifically amazing. An understanding how the single-layered marsupial blastocyst cells are directed to form the complex organisation of an embryo would help us understand the biology underlying the developmental potential of all cells. Understanding these processes is not only of great fundamental interest to developmental biology but also for the development of embryonic stem cell lines. This research will continue Australia's high profile in reproductive biology using one of our iconic native mammals. A greater understanding of marsupial reproduction will also contribute to management of our threatened marsupial populations.Read moreRead less
An RNA interference based genetic screen for novel epigenetic modifiers involved in mammalian X inactivation. All the information required to form an adult human is contained in the DNA of the fertilized egg. Development is achieved by a complex orchestration of genes being switched on and off, controlled by proteins called epigenetic modifiers. Sometimes this goes awry, leading to disease. Despite their vital role, only around ten percent of the potential epigenetic modifiers have been characte ....An RNA interference based genetic screen for novel epigenetic modifiers involved in mammalian X inactivation. All the information required to form an adult human is contained in the DNA of the fertilized egg. Development is achieved by a complex orchestration of genes being switched on and off, controlled by proteins called epigenetic modifiers. Sometimes this goes awry, leading to disease. Despite their vital role, only around ten percent of the potential epigenetic modifiers have been characterized in humans, making it impossible to interpret how they work together, or when they fail. We will develop a novel screen-based technology to find hundreds more true epigenetic modifiers. This technology will aid us and other Australian scientists to understand the role of epigenetics in normal development and disease, ultimately leading to better public health.Read moreRead less
Identification of nuclear reprogramming factors in oocyte cytoplasm. The mature oocyte contains dominant factors that are capable of erasing tissue specific gene expression profiles of somatic cells. These reprogramming factors would be valuable for dedifferentiation of cells and for nuclear transfer in animal cloning. The research involves determination of reprogramming factors present in active cytoplasm following enucleation of the germinal vesicle, blockage of transcription and translation, ....Identification of nuclear reprogramming factors in oocyte cytoplasm. The mature oocyte contains dominant factors that are capable of erasing tissue specific gene expression profiles of somatic cells. These reprogramming factors would be valuable for dedifferentiation of cells and for nuclear transfer in animal cloning. The research involves determination of reprogramming factors present in active cytoplasm following enucleation of the germinal vesicle, blockage of transcription and translation, and timed cultures. The assays will involve maintenance of reprogramming ability and erasure of somatic gene transcription. By subtractive elimination the function of isolated proteins which are involved in reprogramming will be identified for potential recombinant production.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0775778
Funder
Australian Research Council
Funding Amount
$196,000.00
Summary
A microarray platform for gene expression analysis and genotyping in biological systems. This technology has substantial benefits for basic science and biotechnology. The ability to rapidly study changes in gene expression in living organisms will benefit agriculture, animal and biomedical science and biotechnology. The Affymetrix platform creates opportunities for new avenues of research, such as studying epigenetic (DNA and protein modifications) mechanisms in development, ageing and disease. ....A microarray platform for gene expression analysis and genotyping in biological systems. This technology has substantial benefits for basic science and biotechnology. The ability to rapidly study changes in gene expression in living organisms will benefit agriculture, animal and biomedical science and biotechnology. The Affymetrix platform creates opportunities for new avenues of research, such as studying epigenetic (DNA and protein modifications) mechanisms in development, ageing and disease. The project falls within the designated national research priority areas of 'promoting and maintaining good health" and the priority goals of "a healthy start to life", "aging well", "aging productively" and "preventative health care."Read moreRead less
Integration of Cellular Gene Regulation Processes. This research program aims to identify specific transcriptional regulatory networks in yeast, to determine how some of these networks interact with each other and within these networks to identify the roles of genes whose functions are currently unknown. It will identify systems regulating genes concerned with one-carbon metabolism, cellular responses to oxidative stress and developmental changes associated with meiosis. It will provide a fra ....Integration of Cellular Gene Regulation Processes. This research program aims to identify specific transcriptional regulatory networks in yeast, to determine how some of these networks interact with each other and within these networks to identify the roles of genes whose functions are currently unknown. It will identify systems regulating genes concerned with one-carbon metabolism, cellular responses to oxidative stress and developmental changes associated with meiosis. It will provide a framework to test regulatory network models and to analyse the molecular basis of interactions between control systems. This research will eventually provide the ability to predict how cells respond to drugs and other environmental stimuli.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0560987
Funder
Australian Research Council
Funding Amount
$156,697.00
Summary
Robust High Resolution Gene and Protein Expression Analysis Facilities in WA. Biological research is playing an increasingly important role in keeping agriculture internationally competitive and helping to unravel the basic mechanisms underpinning plant and animal health. This collaborative research equipment will greatly enhance and extend our existing functional genomic facilities in WA, allowing robust pre-fractionation of samples for directed proteomic analysis within complex systems and al ....Robust High Resolution Gene and Protein Expression Analysis Facilities in WA. Biological research is playing an increasingly important role in keeping agriculture internationally competitive and helping to unravel the basic mechanisms underpinning plant and animal health. This collaborative research equipment will greatly enhance and extend our existing functional genomic facilities in WA, allowing robust pre-fractionation of samples for directed proteomic analysis within complex systems and allowing accurate and sensitive measurement of gene expression. Both of these are critical for analysis of low abundance components involved in signalling and regulatory functions in biological samples.Read moreRead less