Discovery Early Career Researcher Award - Grant ID: DE210100103
Funder
Australian Research Council
Funding Amount
$459,674.00
Summary
Fortifying animal and plant germ cells against proteotoxic stress. Cellular stress is responsible for widespread inefficiencies in plant and animal reproduction. Using high resolution proteomics and cryo-electron microscopy, this project aims to investigate how plant and animal germ cells respond to environmental stresses that are known to disrupt fertility, and assess two novel strategies to decrease the sensitivity of cells to stress. This project is expected to generate new global knowledge i ....Fortifying animal and plant germ cells against proteotoxic stress. Cellular stress is responsible for widespread inefficiencies in plant and animal reproduction. Using high resolution proteomics and cryo-electron microscopy, this project aims to investigate how plant and animal germ cells respond to environmental stresses that are known to disrupt fertility, and assess two novel strategies to decrease the sensitivity of cells to stress. This project is expected to generate new global knowledge in the area of fertility regulation with the potential to improve the tolerance of crop species to heat stress, prevent economic losses and help to secure future food production. Further, this project has the intended benefit of improving the fertility of animal species that suffer from stress-induced infertility.
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Gamete-specific knockout of Fizzy-Related to examine its meiotic role in oocytes and sperm. Fizzy-Related is a gene that appears to be essential in making an ovulated egg, and it may also have an important role to play in making sperm. A mouse knockout will be generated to examine exactly how it functions; because it affects the egg number remaining in the ovary and egg quality Fizzy-Related may be eventually an important therapeutic target.
Using Drosophila to analyse a master regulator of epithelial homeostasis. Aims:
This proposal aims to use genetic and cell biological analysis of the vinegar fly, Drosophila, to identify the function of the grainyhead gene in intestinal regeneration.
Significance:
This gene is conserved in all animal species and appears to be a master regulator of epithelial tissue development but it is unclear how it can both influence stem cell maintenance and production of functional cell types.
Expected out ....Using Drosophila to analyse a master regulator of epithelial homeostasis. Aims:
This proposal aims to use genetic and cell biological analysis of the vinegar fly, Drosophila, to identify the function of the grainyhead gene in intestinal regeneration.
Significance:
This gene is conserved in all animal species and appears to be a master regulator of epithelial tissue development but it is unclear how it can both influence stem cell maintenance and production of functional cell types.
Expected outcomes:
We will identify a new mechanism that governs tissue development, and introduce new imaging and genetic technologies to the Australian research community.
Benefit:
We expect potential economic and commercial interest in development of new gene analysis tools and biotechnological tissue manipulation applications.Read moreRead less
Impact of the male germ line on the mutational load carried by mammalian embryos. This project examines whether a man's age or exposure to lifestyle factors (alcohol, cigarette smoke and mobile phone radiation) can have a major effect on the health of his children. The project is particularly relevant to the safety of assisted conception procedures used to treat the 1 in 20 Australian men suffering from infertility.
Defining signals that regulate intestinal stem cells during organ growth. This project will define the key signals that promote cell division in the stem cells which produce the inner epithelial lining of the gut. This fundamental knowledge is of significance as it will provide information about how key signals are delivered to promote repair of injury to this key cell layer. The gut is a vital organ conserved across species that is prone to injury as it is exposed to a very harsh environment of ....Defining signals that regulate intestinal stem cells during organ growth. This project will define the key signals that promote cell division in the stem cells which produce the inner epithelial lining of the gut. This fundamental knowledge is of significance as it will provide information about how key signals are delivered to promote repair of injury to this key cell layer. The gut is a vital organ conserved across species that is prone to injury as it is exposed to a very harsh environment of bacteria and the products of food digestion. The outcomes of this project will provide an understanding of development and regeneration of the epithelial lining and key signals that may augment repair. The future benefits include improved health outcomes for animals and humans and potential economic benefits.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE220100006
Funder
Australian Research Council
Funding Amount
$383,872.00
Summary
Determining the regulation of ovary development with single cell sequencing. This project will greatly advance our understanding of ovary development and mammalian reproduction. I will investigate the process of ovarian primordial follicle activation including its genetic regulation, the importance of supportive granulosa cells and the biological significance of regulatory factors. This will be achieved through the comprehensive investigation of a single cell transcriptomic dataset of ovarian de ....Determining the regulation of ovary development with single cell sequencing. This project will greatly advance our understanding of ovary development and mammalian reproduction. I will investigate the process of ovarian primordial follicle activation including its genetic regulation, the importance of supportive granulosa cells and the biological significance of regulatory factors. This will be achieved through the comprehensive investigation of a single cell transcriptomic dataset of ovarian development (Aim 1) in conjunction with functional studies (Aim 2). The outcomes of which will hold significant benefit to animal reproduction through new strategies to improve livestock productivity and control invasive pest species. These outcomes are of economic and environmental and benefit nationally.Read moreRead less
Going with the flow: directing nutrient rich blood to the brain. This project aims to visualise and measure flow of blood from the umbilical cord to the fetal brain and to understand how delivery of oxygen and glucose to the brain is prioritised by constriction or relaxation of a specialised shunt, the ductus venosus. The project will directly and non-invasively measure this fundamental phenomenon with novel MRI protocols. Expected outcomes of this project include advances in measuring fetal blo ....Going with the flow: directing nutrient rich blood to the brain. This project aims to visualise and measure flow of blood from the umbilical cord to the fetal brain and to understand how delivery of oxygen and glucose to the brain is prioritised by constriction or relaxation of a specialised shunt, the ductus venosus. The project will directly and non-invasively measure this fundamental phenomenon with novel MRI protocols. Expected outcomes of this project include advances in measuring fetal blood flow and the exchange of expertise between leading researchers in Australia and Canada. In the long-term, this will enhance Australia’s research capacity in fetal physiology and may lead to new tools for monitoring or supporting fetal development.Read moreRead less
Normal heart development before birth. This project aims to understand how the fetal heart can develop normally with much less oxygen than an adult heart uses. Regulation of fetal heart proliferation is not well understood but changes in oxygen levels and non-coding RNAs are implicated. Using advanced imaging techniques to measure blood flow in blood vessels to the fetal heart and molecular probes to assess cell function and microarrays to measure non-coding RNA, the project expects to generate ....Normal heart development before birth. This project aims to understand how the fetal heart can develop normally with much less oxygen than an adult heart uses. Regulation of fetal heart proliferation is not well understood but changes in oxygen levels and non-coding RNAs are implicated. Using advanced imaging techniques to measure blood flow in blood vessels to the fetal heart and molecular probes to assess cell function and microarrays to measure non-coding RNA, the project expects to generate new knowledge about mechanisms of fetal heart cell proliferation. Ultimately, this new knowledge could lead to non-invasive approaches to detect and treat abnormal fetal heart growth in animals and humans.Read moreRead less
Purinergic signalling in placentation and vascular adaptation in pregnancy. Our traditional understanding of purinergic signalling in the placenta is significantly outdated and incomplete. The placenta is critical for reproduction in all eutherian mammals, delivering critical nutrition and oxygen to the developing fetus. This project aims to define the role of purinergic signalling as a critical mechanism driving placentation and angiogenesis. This is the first study of its kind and will use sop ....Purinergic signalling in placentation and vascular adaptation in pregnancy. Our traditional understanding of purinergic signalling in the placenta is significantly outdated and incomplete. The placenta is critical for reproduction in all eutherian mammals, delivering critical nutrition and oxygen to the developing fetus. This project aims to define the role of purinergic signalling as a critical mechanism driving placentation and angiogenesis. This is the first study of its kind and will use sophisticated models to improve our fundamental understanding and ability to manipulate mammalian reproduction via the purinoreceptors. This proposal builds on my skills and expertise; improving our knowledge of the processes driving placental and vascular morphogenesis and offers important discoveries for reproductive science.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE220100032
Funder
Australian Research Council
Funding Amount
$379,264.00
Summary
Banking on spermatogonial stem cells to safeguard Australian native fauna. Spermatogonial stem cells in the testis are an untapped resource for species conservation. This project aims to characterise metabolic pathways that control spermatogonial stem cell function, and define the conserved nature of these pathways between model species (mouse) and vulnerable Australian native fauna. Expected outcomes of this project include an enhanced capacity to culture koala spermatogonia in vitro, which wil ....Banking on spermatogonial stem cells to safeguard Australian native fauna. Spermatogonial stem cells in the testis are an untapped resource for species conservation. This project aims to characterise metabolic pathways that control spermatogonial stem cell function, and define the conserved nature of these pathways between model species (mouse) and vulnerable Australian native fauna. Expected outcomes of this project include an enhanced capacity to culture koala spermatogonia in vitro, which will be a first step towards using spermatogonial biobanking as a tool to maintain genetic diversity in this species. Outcomes from this study should provide significant benefits in safeguarding our unique Australian native species, which is of particular importance following the catastrophic 2019/20 bushfire season.Read moreRead less