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As women age, the quality of their eggs decline and their chance of having a healthy baby plummets. The accumulation of DNA damage within the egg, and the reduced ability to repair this damage, may be one cause of compromised reproductive success in older women. This project will investigate the ability of eggs to repair DNA damage during maternal aging and will explore the importance of DNA repair to fertility and the transmission of high quality genetic material to their offspring.
Examining The Importance Of DNA Damage Repair For Oocyte Quality, Female Fertility And Offspring Health
Funder
National Health and Medical Research Council
Funding Amount
$318,768.00
Summary
As women age, the quality of their eggs decline and their chance of having a healthy baby plummets. The accumulation of DNA damage within the egg, and the reduced ability to repair this damage, may be one cause of compromised reproductive success in older women. This project will investigate the ability of eggs to repair DNA damage during maternal aging and will explore the importance of DNA repair to fertility and the transmission of high quality genetic material to their offspring.
The Role Of Nuclear Architecture In The DNA Damage Response
Funder
National Health and Medical Research Council
Funding Amount
$561,966.00
Summary
The goal of the proposed research is to understand how dynamic changes to the chromatin genome packaging network, interact with the DNA damage response and gene expression machinery, to repair damaged DNA and the impact this has on cancer biology. To do so we are combining cutting edge molecular biology techniques with innovative novel microscopy methods developed by our research team, that far exceed the spatiotemporal resolution currently used to study chromatin biology.
How Replication Stress Activates The Mitotic Telomere DNA Damage Response To Kill Cancer Cells
Funder
National Health and Medical Research Council
Funding Amount
$486,467.00
Summary
We discovered a novel mechanism linking stress during DNA replication to difficulties with the cell division process, and identified how this turns on DNA damage response signals from the chromosome ends (i.e. “telomeres”). We have further identified that we can exploit this mechanism to kill cancer cells. In this project we will explore this newly discovered mechanism and identify how it can be targeted for therapeutic purposes.
Alpha-2-Macroglobulin And The Transport And Uptake Of The Hormone, Hepcidin
Funder
National Health and Medical Research Council
Funding Amount
$533,541.00
Summary
Hepcidin is a peptide hormone that is a major regulator of iron metabolism. It has been suggested that hepcidin is free in the blood. However, we recently identified that hepcidin binds with alpha-2-macroglobulin (a2-M) in the plasma and this increases the efficacy of this peptide. The demonstration that a2-M plays a role in hepcidin biology will lead to a better understanding of hepcidin physiology, the development of methods for its measurement and improved treatment of iron related diseases.
The Mutagenic Influence Of 5-methylcytosine And Its Relevance For Cancer Treatment
Funder
National Health and Medical Research Council
Funding Amount
$844,462.00
Summary
Over time our cells accumulate damage to their DNA, which introduces mistakes in the genetic code. These mistakes can alter genes that regulate cell growth and survival and, in this way, they begin the process of turning a normal cell into a cancer. This research is investigating the cellular repair mechanisms that safeguard against DNA damage. Manipulating these repair mechanisms may offer a new way to treat cancer, by selectively inducing DNA damage within cancer cells.
Development Of Iron Complexes For The Treatment Of FriedreichÍs Ataxia & The Role Of Frataxin In Iron Metabolism
Funder
National Health and Medical Research Council
Funding Amount
$616,143.00
Summary
Friedreich's ataxia (FA) is a neuro- & cardio-degenerative disease where there is an accumulation of toxic iron (Fe) in the mitochondrion. Work from our current NHMRC grant showed iron plays a significant role in FA pathology In fact, the CIs dissected the mechanisms of mitochondrial iron-loading & have published 8 papers in high impact journals with 3 papers in PNAS USA in the last 2 yrs Understanding of this process has led to the design of rationalised drugs for FA This work in this Renewal c ....Friedreich's ataxia (FA) is a neuro- & cardio-degenerative disease where there is an accumulation of toxic iron (Fe) in the mitochondrion. Work from our current NHMRC grant showed iron plays a significant role in FA pathology In fact, the CIs dissected the mechanisms of mitochondrial iron-loading & have published 8 papers in high impact journals with 3 papers in PNAS USA in the last 2 yrs Understanding of this process has led to the design of rationalised drugs for FA This work in this Renewal could lead to novel therapies for FARead moreRead less
Understanding The Mechanisms For Ameliorating/preventing Antipsychotic-induced Obesity In Early Life
Funder
National Health and Medical Research Council
Funding Amount
$576,496.00
Summary
There has been a sharp worldwide increase during the last decade in antipsychotic prescriptions (mostly “off-label”) to paediatric patients. One important issue is that antipsychotic drugs were developed for adult patients and normally have serious side-effects. This project will not only reveal the mechanisms of antipsychotic-induced obesity side-effects in youth, but will also explore intervention strategies for preventing antipsychotic-induced weight gain/obesity in paediatric patients.
Activation And Inhibition Of The Plasminogen/Plasmin System
Funder
National Health and Medical Research Council
Funding Amount
$800,663.00
Summary
Plasmin is crucial enzyme present in blood plasma that functions in clot dissolution, inflammation, tissue remodeling, and wound healing. We aim to study how this enzyme system is controlled, by studying its interaction with receptors, co-factors and inhibitors. The information we gain will help drive the development of new generation therapeutics for the fine control of plasmin function in clotting disease, bleeding and inflammation.