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Advanced drug delivery reviews (1)
Expert opinion on drug delivery (1)
Gunda, Padmaja (2)
Berkland, Cory J (1)
Forrest, M Laird (1)
Forrest, M. Laird (1)
Lin, Ying-Ying (1)
Majeti, Bharat K. (1)
Nune, Satish K (1)
Nune, Satish K. (1)
Thallapally, Praveen K (1)
Thallapally, Praveen K. (1)
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Advances in Lymphatic Imaging and Drug Delivery
Nune, Satish K.
Majeti, Bharat K.
Thallapally, Praveen K.
Forrest, M. Laird
Advanced drug delivery reviews
Cancer remains the second leading cause of death after heart disease in the US. While metastasized cancers such as breast, prostate, and colon are incurable, before their distant spread, these diseases will have invaded the lymphatic system as a first step in their progression. Hence, proper evaluation of the disease state of the lymphatics which drain a tumor site is crucial to staging and the formation of a treatment plan. Current lymphatic imaging modalities with visible dyes and radionucleotide tracers offer limited sensitivity and poor resolution; however, newer tools using nanocarriers, quantum dots, and magnetic resonance imaging promise to vastly improve the staging of lymphatic spread without needless biopsies. Concurrent with the improvement of lymphatic imaging agents, has been the development of drug carriers that can localize chemotherapy to the lymphatic system, thus improving the treatment of localized disease while minimizing the exposure of healthy organs to cytotoxic drugs. This review will focus on the use of various nanoparticulate and polymeric systems that have been developed for imaging and drug delivery to the lymph system, how these new devices improve upon current technologies, and where further improvement is needed.
drug delivery; polymeric carriers; lymphatic system; sentinel lymph nodes; quantum dots; dendrimers
Nanoparticles for biomedical imaging
Nune, Satish K
Thallapally, Praveen K
Forrest, M Laird
Berkland, Cory J
Expert opinion on drug delivery
Synthetic nanoparticles are emerging as versatile tools in biomedical applications, particularly in the area of biomedical imaging. Nanoparticles 1 – 100 nm in diameter have dimensions comparable to biological functional units. Diverse surface chemistries, unique magnetic properties, tunable absorption and emission properties, and recent advances in the synthesis and engineering of various nanoparticles suggest their potential as probes for early detection of diseases such as cancer. Surface functionalization has expanded further the potential of nanoparticles as probes for molecular imaging.
To summarize emerging research of nanoparticles for biomedical imaging with increased selectivity and reduced nonspecific uptake with increased spatial resolution containing stabilizers conjugated with targeting ligands.
This review summarizes recent technological advances in the synthesis of various nanoparticle probes, and surveys methods to improve the targeting of nanoparticles for their application in biomedical imaging.
Structural design of nanomaterials for biomedical imaging continues to expand and diversify. Synthetic methods have aimed to control the size and surface characteristics of nanoparticles to control distribution, half-life and elimination. Although molecular imaging applications using nanoparticles are advancing into clinical applications, challenges such as storage stability and long-term toxicology should continue to be addressed.
biomedical imaging; molecular imaging; nanoparticle synthesis; surface modification; targeting
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