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2015 ; 218
(ä): 94-113
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Technologies for controlled, local delivery of siRNA
#MMPMID26476177
Sarett SM
; Nelson CE
; Duvall CL
J Control Release
2015[Nov]; 218
(ä): 94-113
PMID26476177
show ga
The discovery of RNAi in the late 1990s unlocked a new realm of therapeutic
possibilities by enabling potent and specific silencing of theoretically any
desired genetic target. Better elucidation of the mechanism of action, the impact
of chemical modifications that stabilize and reduce nonspecific effects of siRNA
molecules, and the key design considerations for effective delivery systems has
spurred progress toward developing clinically-successful siRNA therapies. A
logical aim for initial siRNA translation is local therapies, as delivering siRNA
directly to its site of action helps to ensure that a sufficient dose reaches the
target tissue, lessens the potential for off-target side effects, and circumvents
the substantial systemic delivery barriers. While locally injected or topically
applied siRNA has progressed into numerous clinical trials, an enormous
opportunity exists to develop sustained-release, local delivery systems that
enable both spatial and temporal control of gene silencing. This review focuses
on material platforms that establish both localized and controlled gene
silencing, with emphasis on the systems that show most promise for clinical
translation.
|Gene Silencing
[MESH]
|RNA, Small Interfering/*administration & dosage/therapeutic use
[MESH]