Optical imaging of three dimensional cell constructs grown in microgravity and in immunodeficient mice Project

Description

Rolling wall vessels (RWV) utilizing both single cell lines and co-cultures with two or more cell types are contributing significantly to our understanding of tumor development, cell biology and the role of cell-cell interaction in physiological processes. These studies would be significantly enhanced if the various populations of cells could be individually identified and monitored over the course of experimentation. Optical and ultrasound technologies will be employed to monitor the development and structure of these constructs. Multiple studies could be further enhanced if it were possible to grow three dimensional constructs comprised of multiple human tissues in immunodeficient mice and image these with ultrasound and optical technologies. Constructs grown in mice may well develop far beyond what is currently possible in vitro. This could open the door for a multitude of previously impossible routes of investigation. We propose to introduce genes coding for firefly luciferase and GFP into various human cell types to allow each population to be monitored in real time over the course of experimentation. By using imaging technology to visualize and quantify different cell populations incorporated into the three dimensional constructs that are the result of RWV culture, our understanding of cell-cell interaction, anti-cancer drug efficacy and specificity and other aspects of cell biology will be greatly enhanced. By implanting these imagable three dimensional constructs into immunodeficient mice, it may be possible to continue growing these multicellular structures thereby affording researchers opportunities to study tumor and cell biology, cellular interaction and many other areas not currently possible.

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