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2016 ; 28
(34
): 7340-64
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English Wikipedia
Hierarchical Targeting Strategy for Enhanced Tumor Tissue Accumulation/Retention
and Cellular Internalization
#MMPMID27255214
Wang S
; Huang P
; Chen X
Adv Mater
2016[Sep]; 28
(34
): 7340-64
PMID27255214
show ga
Targeted delivery of therapeutic agents is an important way to improve the
therapeutic index and reduce side effects. To design nanoparticles for targeted
delivery, both enhanced tumor tissue accumulation/retention and enhanced cellular
internalization should be considered simultaneously. So far, there have been very
few nanoparticles with immutable structures that can achieve this goal
efficiently. Hierarchical targeting, a novel targeting strategy based on stimuli
responsiveness, shows good potential to enhance both tumor tissue
accumulation/retention and cellular internalization. Here, the recent design and
development of hierarchical targeting nanoplatforms, based on changeable particle
sizes, switchable surface charges and activatable surface ligands, will be
introduced. In general, the targeting moieties in these nanoplatforms are not
activated during blood circulation for efficient tumor tissue accumulation, but
re-activated by certain internal or external stimuli in the tumor
microenvironment for enhanced cellular internalization.