Preclinical fluorescent mouse models of pancreatic cancer

Michael Bouvet; Robert M. Hoffman

doi:10.1117/12.708060

14 February 2007 Preclinical fluorescent mouse models of pancreatic cancer

Michael Bouvet, Robert M. Hoffman

Proceedings Volume 6449, Genetically Engineered and Optical Probes for Biomedical Applications IV; 64490X (2007) https://doi.org/10.1117/12.708060
Event: SPIE BiOS, 2007, San Jose, California, United States

Abstract

Here we describe our cumulative experience with the development and preclinical application of several highly fluorescent, clinically-relevant, metastatic orthotopic mouse models of pancreatic cancer. These models utilize the human pancreatic cancer cell lines which have been genetically engineered to selectively express high levels of the bioluminescent green fluorescent (GFP) or red fluorescent protein (RFP). Fluorescent tumors are established subcutaneously in nude mice, and tumor fragments are then surgically transplanted onto the pancreas. Locoregional tumor growth and distant metastasis of these orthotopic implants occurs spontaneously and rapidly throughout the abdomen in a manner consistent with clinical human disease. Highly specific, high-resolution, real-time visualization of tumor growth and metastasis may be achieved in vivo without the need for contrast agents, invasive techniques, or expensive imaging equipment. We have shown a high correlation between florescent optical imaging and magnetic resonance imaging in these models. Alternatively, transplantation of RFP-expressing tumor fragments onto the pancreas of GFP-expressing transgenic mice may be used to facilitate visualization of tumor-host interaction between the pancreatic tumor fragments and host-derived stroma and vasculature. Such in vivo models have enabled us to serially visualize and acquire images of the progression of pancreatic cancer in the live animal, and to demonstrate the real-time antitumor and antimetastatic effects of several novel therapeutic strategies on pancreatic malignancy. These fluorescent models are therefore powerful and reliable tools with which to investigate human pancreatic cancer and therapeutic strategies directed against it.

Citation Download Citation

Michael Bouvet and Robert M. Hoffman "Preclinical fluorescent mouse models of pancreatic cancer", Proc. SPIE 6449, Genetically Engineered and Optical Probes for Biomedical Applications IV, 64490X (14 February 2007); https://doi.org/10.1117/12.708060

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