High-affinity protease-resistant analog of Insulin-like Growth Factor binding protein-2: Potential Cancer Co-Therapeutic

Funding Activity

Website
http://purl.org/au-research/grants/nhmrc/104924

Funding Status
Closed

Does something not look right? The information on this page has been harvested from data sources that may not be up to date. We continue to work with information providers to improve coverage and quality. To report an issue, use the .

Funded Activity Summary

In many human cancers, including prostate and breast cancer, serum levels of insulin-like growth factor (IGF)-II are elevated, and this growth factor has been strongly implicated in promoting the progression of these tumours. The action of IGF-II in stimulating tumour growth is mediated through Type 1 IGF receptors on the surface of the cells. The IGF binding protein, IGFBP-2, has been shown to increase the action of IGF-II in some cancer cells in vitro. by binding to the outside of the cells as an IGF-II-IGFBP-2 complex and then presenting the IGF-II to the receptor by a process of sustained release. We propose to produce a very high affinity form of insulin-like growth factor binding protein-2 (OOptimised IGFBP-2O) which will sequester the IGF-II and effectively prevent it from binding to the receptor or the native IGFBP-2. We shall also engineer the OOptimised IGFBP-2O so that it is unable to bind to the outside of the cells. With this novel peptide, OOptimised IGFBP-2O, we will test the hypothesis that the growth of insulin-like growth factor (IGF)-dependent tumours can be arrested by preventing the localisation and presentation of IGF-II to IGF receptors. We expect that the availability of such a sequestering agent for IGF-II will increase the effectiveness of current cancer chemotherapy agents since it is known that IGF-II can help save cancer cells from chemotherapy-induced death.

Funded Activity Details

Start Date: 01-01-2000

End Date: 01-01-2002

Funding Scheme: NHMRC Project Grants

Funding Amount: $294,423.00

Funder: National Health and Medical Research Council

Research Topics

ANZSRC Field of Research (FoR)

Oral and maxillofacial surgery

ANZSRC Socio-Economic Objective (SEO)

There are no SEO codes available for this funding activity

Other Keywords

IGF-dependent cancers | breast cancer | cancer chemotherapy | enhanced IGF binding affinity | extracellular matrix binding | insulin-like growth factor (IGF) binding protein2 and IGF-II | prostate cancer | protease resistance | protein engineering and 'phage display

Related Links