Our overall goal is to create and test a new generation of cell- targeted MRI contrast agents.
The aim will be to achieve at least an order of magnitude increase in improvement in the ability to detect and image molecular level events in vitro and in vivo with broad applications in medicine. This proposal is a multidisciplinary effort, combining established expertise in cardiovascular, vascular biology, MRI, virology, synthetic inorganic and nano-materials chemistry. The overall approach will combine the use of non-infectious virus and other protein cage architectures for multivalent display of cell-specific targeting ligands, high performance metal based imaging agents, for functional and cellular imaging using MRI. The advantage of this approach is a substantial increase in rotational correlation time due to the size of the virus architecture in combination with high-density presentation of targeting ligands and metal binding sites with free access to water. The specific objectives of this proposal are (1) synthesis of protein cage architectures with high-density presentation of both cell targeting ligands and high magnetic moment materials, (ii) controlled fabrication of protein cage nano-particle clusters incorporating functionalized cell targeting ligands and MRI contrast agents, and (Hi) in vitro and in vivo MRI evaluation of functionalized protein cage architectures including improved MRI techniques for detecting nano-particle contrast agents. Creation and evaluation of these materials as functional MR contrast agents using state-of the-art facilities will provide rapid and direct feedback for an iterative process to create the next generation of high performance functional MRI contrast agents. ? ?

Agency
National Institute of Health (NIH)
Institute
National Institute of Biomedical Imaging and Bioengineering (NIBIB)
Type
Exploratory/Developmental Grants (R21)
Project #
5R21EB005364-03
Application #
7271890
Study Section
Special Emphasis Panel (ZEB1-OSR-C (M1))
Program Officer
Mclaughlin, Alan Charles
Project Start
2005-09-15
Project End
2009-08-31
Budget Start
2007-09-01
Budget End
2008-08-31
Support Year
3
Fiscal Year
2007
Total Cost
$357,006
Indirect Cost
Name
Montana State University - Bozeman
Department
Chemistry
Type
Schools of Arts and Sciences
DUNS #
625447982
City
Bozeman
State
MT
Country
United States
Zip Code
59717
Kitagawa, Toshiro; Kosuge, Hisanori; Uchida, Masaki et al. (2012) RGD-conjugated human ferritin nanoparticles for imaging vascular inflammation and angiogenesis in experimental carotid and aortic disease. Mol Imaging Biol 14:315-24
Uchida, Masaki; Kosuge, Hisanori; Terashima, Masahiro et al. (2011) Protein cage nanoparticles bearing the LyP-1 peptide for enhanced imaging of macrophage-rich vascular lesions. ACS Nano 5:2493-502
Terashima, Masahiro; Uchida, Masaki; Kosuge, Hisanori et al. (2011) Human ferritin cages for imaging vascular macrophages. Biomaterials 32:1430-7
Pokorski, Jonathan K; Breitenkamp, Kurt; Liepold, Lars O et al. (2011) Functional virus-based polymer-protein nanoparticles by atom transfer radical polymerization. J Am Chem Soc 133:9242-5
Pokorski, Jonathan K; Hovlid, Marisa L; Finn, M G (2011) Cell targeting with hybrid Q? virus-like particles displaying epidermal growth factor. Chembiochem 12:2441-7
Jolley, Craig C; Uchida, Masaki; Reichhardt, Courtney et al. (2010) Size and crystallinity in protein-templated inorganic nanoparticles. Chem Mater 22:4612-4618
Uchida, Masaki; Kang, Sebyung; Reichhardt, Courtney et al. (2010) The ferritin superfamily: Supramolecular templates for materials synthesis. Biochim Biophys Acta 1800:834-45
Abedin, Md Joynal; Liepold, Lars; Suci, Peter et al. (2009) Synthesis of a cross-linked branched polymer network in the interior of a protein cage. J Am Chem Soc 131:4346-54
Wiley, James A; Richert, Laura E; Swain, Steve D et al. (2009) Inducible bronchus-associated lymphoid tissue elicited by a protein cage nanoparticle enhances protection in mice against diverse respiratory viruses. PLoS One 4:e7142
Liepold, Lars; Oltrogge, Luke M; Suci, Peter A et al. (2009) Correct charge state assignment of native electrospray spectra of protein complexes. J Am Soc Mass Spectrom 20:435-42

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