Intraocular transplantation and regeneration of retinofugal pathways in rodents [ 2000 - 2002 ]

Research Grant

Researchers: E/Pr Alan Harvey (Principal investigator)

Brief description In the adult human brain and spinal cord there is little or no intrinsic capacity for replacement of lost or dying neurons, and there is minimal spontaneous repair of nerve fibre pathways. Thus traumatic injuries, stroke, or loss of neurons due to chronic degenerative disease result in functional impairments that are usually severe and long-lasting. The personal, social and economic costs associated with these neurological problems are enormous. New ways must be found of protecting and-or replenishing nerve cells in damaged CNS gray matter, and new methods are also required to help reconstruct fibre tracts after injury. Using the visual system as an experimental model, the aims of the proposed work are to develop novel transplantation and surgical strategies to: (i) Incorporate new cells into retinae that have been selectively depleted of endogenous neurons (ii) Promote the effective regeneration of large numbers of adult retinal axons through prosthetic peripheral nerve bridging grafts and into host CNS distal to the injury. The results obtained from the first series of studies will not only be of direct relevance to the future treatment of human retinal degenerative disorders, but will also increase our overall understanding of how best to ensure the differentiation and stable integration of different types of transplanted cells within the compromised host CNS. The second series of experiments should lead to an entirely new approach to nerve pathway reconstruction, relevant to both brain and spinal cord injuries. The ultimate aim of this experimental work is to improve the management and treatment of human CNS injury and disease, leading to better functional recovery and rehabilitation.

Funding Amount $AUD 370,937.49

Funding Scheme NHMRC Project Grants

Notes Standard Project Grant