Astrocytic contributions to tissue damage and dysfunction in stroke

Funded Activity Summary

Stroke is a primary cause of disability and death in adults. The symptoms of stroke arise from damage to brain tissue following disruptions to blood flow. At present, there are few options for treatments to limit the extent of tissue damage and the consequent disruption to function. Although, there have been considerable advances in understanding the cellular and molecular processes underlying the tissue damage, many issues are unresolved. A better understanding of these processes is likely to open up new avenues for ameliorating damage and improving outcomes for stroke patients. Astrocytes are one of the major populations of cells in the brain. They play key roles in supporting normal brain function and protecting nerve cells in the brain. Because of their many functions, these cells offer considerable potential as a therapeutic target in stroke. Unfortunately, the responses of astrocytes in this disorder are poorly understood due partly to a lack of techniques to distinguish their contributions from that of other cells in the brain. We have recently designed a novel system using antibodies to deliver genes into selected populations of nerve cells in the nervous system and thus to selectively alter the function of these cells. In the proposed study, we will adapt this technique to selectively modify gene expression in astrocytes. We will then apply the procedure to determine the consequences of altering key functions in astrocytes on the brain damage and behavioural changes that develop in an animal model of stroke. The successful completion of this research will provide a powerful means to investigate the function of astrocytes, not only in diseases such as stroke but also in normal brain. We will also gain novel insights into the astrocytic role in the damage and dysfunction resulting from stroke that have potential applications in developing new therapies.

Funded Activity Details

Start Date: 01-01-2007

End Date: 01-01-2009

Funding Scheme: NHMRC Project Grants

Funding Amount: $275,810.00

Funder: National Health and Medical Research Council

Research Topics

ANZSRC Field of Research (FoR)

Central Nervous System

ANZSRC Socio-Economic Objective (SEO)

There are no SEO codes available for this funding activity

Other Keywords

Astrocytes | Cerebral Infarction | Cerebral ischemia | Gene Therapy | Gene delivery | Infarction | Ischaemic stroke | Oxidative stress

Related Links