Understanding selective drug signaling at G protein-coupled receptors [ 2007 - 2008 ]

Research Grant

Researchers: Prof Patrick Sexton (Principal investigator) ,  Prof Andrew Tobin ,  Prof Arthur Christopoulos

Brief description The maintenance of optimum health and function living cells, and consequently that of the whole organism, depends on how cells respond to a multitude of physical and chemical stimuli that continually bombard them. The majority of the chemical stimuli such as hormones and neurotransmitters impart their actions not by directly entering the cell, but instead, by binding to a specific reciever protein at the cell surface called receptor. In one class of such receptors called G protein-coupled receptors, the transmission of the message to the interior of the cell involves yet another protein called G protein. These receptors are the most abundant type of cell surface receptors and form the targets for nearly 50% of currently used therapeutic drugs. It is, therefore, extremely important to unravel how each of these components works, and in particular to know how they work in living cells. This project utilizes state-of-the-art methodologies to examine interactions between receptors and their cognate G proteins, in living cells and in real-time. The work will answer fundamental questions about the nature of G protein-coupled receptor signaling, in particular whether new classes of drugs can be identified that more selectively activate signaling pathways or factors that attenuate signaling. This work has potential for future development of more effective therapeutic agents.

Funding Amount $AUD 362,206.80

Funding Scheme NHMRC Project Grants

Notes Standard Project Grant