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2017 ; 7
(1
): 10005
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Library siRNA-generating RNA nanosponges for gene silencing by complementary
rolling circle transcription
#MMPMID28855687
Han S
; Kim H
; Lee JB
Sci Rep
2017[Aug]; 7
(1
): 10005
PMID28855687
show ga
Since the discovery of RNA interference (RNAi), small interfering RNA (siRNA) has
been powerful tools for gene downregulation in biomedical applications. Despite
the outstanding efficacy of siRNA, the development of a therapeutic delivery
system remains a challenge owing to the instability of RNA. In this study, we
describe a new method for the design of siRNA-generating nanosponges by using
complementary rolling circle transcription (cRCT), a technique that requires two
complementary circular DNA. The sequences of one of the circular DNA are designed
to have complete complementarity to the target mRNA resulting in double stranded
RNA (dsRNA) that can be digested to siRNA by cellular Dicer activity. This siRNA
design, called 'library siRNA', could be universally applied to fabricate RNA
nanosponges targeting any known mRNA sequence.