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Molecular imaging with theranostic nanoparticles
Jesse V Jokerst1, Sanjiv S Gambhir
1Molecular Imaging Program at Stanford (MIPS), Department of Radiology, 318 Campus Drive, Stanford University, Stanford, California 94305-5427, USA.
Accounts of Chemical Research
|September 17, 2011
Summary
Nanoparticles (NPs) offer advanced diagnostic and therapeutic capabilities, enabling precise disease detection and targeted treatment. While clinical translation is ongoing, NPs show promise in drug delivery, imaging, and image-guided therapies.
Area of Science:
- Nanomedicine and Molecular Imaging
- Biotechnology and Biomedical Engineering
Background:
- Nanoparticles (NPs) provide unique diagnostic and therapeutic advantages over traditional small molecules and microscale tools.
- The integration of molecular biology with medical imaging has led to the increasing use of NP imaging for therapeutic and diagnostic applications.
- The concept of theranostics, combining diagnostic and therapeutic functions, is a key area of NP development, though full clinical translation remains incomplete.
Purpose of the Study:
- To review the diagnostic imaging and therapeutic applications of nanoparticles.
- To explore the potential of nanoparticles in theranostic applications, combining diagnosis and therapy.
- To present examples of five primary types of nanoparticles with concurrent diagnostic and therapeutic uses.
Main Methods:
- Review of current literature on nanoparticle applications in molecular imaging and therapy.
- Analysis of NP characteristics for theranostic potential, including targeting, imaging signal, therapeutic delivery, and safety.
- Categorization and exemplification of five primary NP types for concurrent diagnostic and therapeutic uses.
Main Results:
- NPs have demonstrated significant success in drug delivery and magnetic resonance imaging.
- Emerging applications include image-guided resection, in vivo optical/photoacoustic imaging, contrast-enhanced ultrasound, and thermoablative therapy.
- While ideal theranostic NPs with selective accumulation, diagnostic reporting, therapeutic delivery, and safety are yet to be fully realized, many NPs exhibit one or more of these features.
Conclusions:
- Nanoparticles hold substantial promise for advancing theranostic applications in medicine.
- Continued research is focused on improving NP biocompatibility, toxicity, and biodistribution profiles for enhanced clinical translation.
- The development of NPs with combined diagnostic and therapeutic capabilities is crucial for future personalized medicine approaches.
