國家衛生研究院 NHRI:Item 3990099045/10222

NHRI > Institute of Biomedical Engineering and Nanomedicine > Jen-Kun Chen > Periodical Articles > Item 3990099045/10222

Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/10222

Title:	Multifunctional silver nanocluster-hybrid oligonucleotide vehicle for cell imaging and microRNA-targeted gene silencing
Authors:	Chen, HY;Albert, K;Wen, CC;Hsieh, PY;Chen, SY;Huang, NC;Lo, SC;Chen, JK;Hsu, HY
Contributors:	Institute of Biomedical Engineering and Nanomedicine
Abstract:	Novel therapeutics is urgently needed to prevent cancer-related deaths. MicroRNAs that act as tumor suppressors have been recognized as a next-generation tumor therapy, and the restoration of tumor-suppressive microRNAs using microRNA replacements or mimics may be a less toxic, more effective strategy due to fewer off-target effects. Here, we designed the novel multifunctional oligonucleotide nanocarrier complex composed of a tumor-targeting aptamer sequence specific to mucin 1 (MUC1), poly-cytosine region for fluorescent silver nanocluster (AgNC) synthesis, and complimentary sequence for microRNA miR-34a loading. MiR-34a was employed because of its therapeutic effect of inhibiting oncogene expression and inducing apoptosis in carcinomas. By monitoring the intrinsic fluorescence of AgNC, it was clearly shown that the constructed complex (MUC1-AgNCm-miR-34a) enters MCF-7 cells. To evaluate the efficacy of this nanocarrier for microRNA delivery, we investigated the gene and protein expression levels of downstream miR-34a targets (BCL-2, CDK6, and CCND1) by quantitative PCR and western blotting, respectively, and the results indicated their effective inhibition by miR-34a. This novel multifunctional AgNC-based nanocarrier can aid in improving the efficacy of breast cancer theranostics.
Date:	2017-04
Relation:	Colloids and Surfaces B: Biointerfaces. 2017 Apr;152:423-431.
Link to:	http://dx.doi.org/10.1016/j.colsurfb.2017.01.048
JIF/Ranking 2023:	http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0927-7765&DestApp=IC2JCR
Cited Times(WOS):	https://www.webofscience.com/wos/woscc/full-record/WOS:000398014100049
Cited Times(Scopus):	http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85011344669
Appears in Collections:	[Jen-Kun Chen] Periodical Articles

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