Role Of Snail Family Proteins In Male Fertility And Testicular Cancer
Funder
National Health and Medical Research Council
Funding Amount
$586,076.00
Summary
Male fertility requires production of healthy sperm in the testis. This project builds on our discoveries that testicular cells regulate gene activity via the Snail family of proteins during sperm development, and that interruption of their activities reduces fertility in mice and fruitflies. Snail proteins are also active in cancer cells. We propose to study the precise steps in sperm production affected by Snail proteins and how they affect the progression of testicular cancer.
Epigenetic Regulation Of Cell Lineage Differentiation In The Early Embryo
Funder
National Health and Medical Research Council
Funding Amount
$440,983.00
Summary
Exposure of embryos to a range of stresses can increase the predisposition to chronic diseases of adulthood. Stressing embryos at critical stages of development cause errors in reorganization of the nucleus that are required for normal gene expression. These errors are propagated into adulthood. This project will map the normal processes of nuclear reorganization and define how stress to the embryo changes this process, allowing an understanding of the causes of some important chronic diseases.
Epigenetic Reprogramming Within The Pluripotent Lineage Of The Early Embryo
Funder
National Health and Medical Research Council
Funding Amount
$663,050.00
Summary
Cells of the early embryo have the remarkable capacity to form all of the different tissues and organs in the body. This property requires re-organisation of the embryo’s genetic material in a manner analogous to re-booting a computer. This project will define the properties of this rebooting process. This information will allow much better strategies for building spare parts for regenerative medicine and provide the information required to reduce the incidence of inborn defects.
The Characterisation Of An Essential Regulator Of Pre-mRNA Splicing Required For Germ Cell Function And Male Fertility
Funder
National Health and Medical Research Council
Funding Amount
$1,116,739.00
Summary
The male germ line is a fantastic system within which to define processes of fundamental importance to cell biology and health broadly. Within this grant we will define the role of a poorly described RNA splicing factor in all of stem cell function (spermatogonia), meiosis (spermatocytes) and in the remarkable metamorphosis underlying spermatid maturation. This will be done using a range of phenotypic characterizations, CHIP and RNA Seq technologies and gene sequencing.
Modulation Of MicroRNA Activity In The Testis: A New Paradigm For Male Fertility?
Funder
National Health and Medical Research Council
Funding Amount
$419,170.00
Summary
Sperm production in the testis is driven by the reproductive hormones, follicle-stimulating hormone (FSH) and testosterone. In this grant, we will investigate how a new class of molecules, called microRNAs, act to transmit the signals from FSH and testosterone to the cellular machinery of the testis, particularly at junctions between cells. This information has the potential to impact on our understanding of the causes of male infertility.
Elucidating The Role Of Epididymosomes In The Transfer Of Fertility-modulating Proteins And Regulatory Classes Of RNA To Maturing Spermatozoa
Funder
National Health and Medical Research Council
Funding Amount
$539,425.00
Summary
Sperm dysfunction represents a major underlying aetiology associated with male infertility. This proposal seeks to understand the mechanisms responsible for driving the functional maturation of spermatozoa and how these mechanisms are perturbed in response to environmental stressors.
The Importance Of The Blood-testis Barrier In Human Infertility
Funder
National Health and Medical Research Council
Funding Amount
$560,953.00
Summary
The blood-testis barrier (BTB) shields developing sperm from the circulation and immune system, which would see them as ‘foreign’. Loss of BTB function leads directly to infertility. Curiously, how the BTB ‘opens’ and ‘closes’ to allow entry without causing a ‘leak’ is unknown. We believe that activin A is the main gatekeeper, but this growth factor is also important in inflammation. Our goals are to show how activin A allows sperm cells entry, and how inflammatory diseases impact the BTB.
A BubR1-centred Network For Non-invasively Measuring Human Oocyte Quality
Funder
National Health and Medical Research Council
Funding Amount
$532,207.00
Summary
Oocyte quality is the most important determinant of pregnancy outcome. Selecting the best oocytes for fertility treatments like IVF would therefore greatly improve success rates and reduce costs. We have identified master oocyte regulators and have applied novel digital technology to measure these regulators in a single oocyte. This project will apply this expertise to develop new approaches for evaluating an oocyte’s potential thereby informing its suitability for use in fertility treatment.