Differentiation Of Murine Embryonic Stem Cells To The Female Germ Line
Funder
National Health and Medical Research Council
Funding Amount
$57,342.00
Summary
In this project we aim to establish techniques to obtain viable and developmentally competent eggs from embryonic stem (ES) cells for studies on the molecular and cellular mechanisms of sex cell production. We expect to achieve ES cell derived eggs with similar fertilization and developmental potential as eggs developed naturally. Sterility resulting from cancer treatments and from genetic and non-genetic malformations can benefit from this ES cell therapy.
Role Of The Histone Variant H3.3 In Germ Cell Development
Funder
National Health and Medical Research Council
Funding Amount
$581,223.00
Summary
Over their life cycle, germ cells are unique in undergoing a large scale reformatting of their gene or DNA control systems, required for their own development, and for the development of the fertilized egg. We think that the protein ïhistone H3.3Í is crucial to this reformatting process. We will test this possibility by determining how much H3.3 is present in germ cells. Also, we will make mice which lack this protein in germ cells to see if this affects the reformatting process.
We propose to determine if a recently discovered biological mechanism plays crucial roles in the development of eggs and sperm. To achieve this, we will remove or mutate this pathway specifically in developing eggs and sperm , then examine the effect. Preliminary results indicate that the mechanism does play important roles mutated eggs fail to complete maturation. These studies will tell us more about what makes a healthy egg and sperm, and are relevant to female and male fertility.