In vivo imaging of the systemic delivery of small interfering RNA

2012 ◽  
Vol 4 (4) ◽  
pp. 428-437 ◽  
Author(s):  
Marytheresa A. Ifediba ◽  
Anna Moore
Keyword(s):  
In Vivo Imaging ◽  
Small Interfering Rna ◽  
Systemic Delivery ◽  
Interfering Rna

scholarly journals Natural Polysaccharides for siRNA Delivery: Nanocarriers Based on Chitosan, Hyaluronic Acid, and Their Derivatives

Molecules ◽  
2019 ◽  
Vol 24 (14) ◽  
pp. 2570 ◽  
Author(s):  
Inés Serrano-Sevilla ◽  
Álvaro Artiga ◽  
Scott G. Mitchell ◽  
Laura De Matteis ◽  
Jesús M. de la Fuente
Keyword(s):  
Drug Delivery ◽  
Hyaluronic Acid ◽  
Small Interfering Rna ◽  
Drug Delivery Systems ◽  
Sirna Delivery ◽  
Delivery Systems ◽  
Low Toxicity ◽  
Interfering Rna

Natural polysaccharides are frequently used in the design of drug delivery systems due to their biocompatibility, biodegradability, and low toxicity. Moreover, they are diverse in structure, size, and charge, and their chemical functional groups can be easily modified to match the needs of the final application and mode of administration. This review focuses on polysaccharidic nanocarriers based on chitosan and hyaluronic acid for small interfering RNA (siRNA) delivery, which are highly positively and negatively charged, respectively. The key properties, strengths, and drawbacks of each polysaccharide are discussed. In addition, their use as efficient nanodelivery systems for gene silencing applications is put into context using the most recent examples from the literature. The latest advances in this field illustrate effectively how chitosan and hyaluronic acid can be modified or associated with other molecules in order to overcome their limitations to produce optimized siRNA delivery systems with promising in vitro and in vivo results.

scholarly journals Therapeutic EphA2 Gene Targeting In vivo Using Neutral Liposomal Small Interfering RNA Delivery

2005 ◽  
Vol 65 (15) ◽  
pp. 6910-6918 ◽  
Author(s):  
Charles N. Landen ◽  
Arturo Chavez-Reyes ◽  
Corazon Bucana ◽  
Rosemarie Schmandt ◽  
Michael T. Deavers ◽  
...  
Keyword(s):  
Gene Targeting ◽  
Small Interfering Rna ◽  
Interfering Rna

Preparation of novel targeting nanobubbles conjugated with small interfering RNA for concurrent molecular imaging and gene therapy in vivo

2019 ◽  
Vol 33 (12) ◽  
pp. 14129-14136 ◽  
Author(s):  
Bolin Wu ◽  
Haitao Shang ◽  
Xitian Liang ◽  
Yixin Sun ◽  
Hui Jing ◽  
...  
Keyword(s):  
Gene Therapy ◽  
Molecular Imaging ◽  
Small Interfering Rna ◽  
Interfering Rna

scholarly journals Switching the intracellular pathway and enhancing the therapeutic efficacy of small interfering RNA by auroliposome

2020 ◽  
Vol 6 (30) ◽  
pp. eaba5379 ◽  
Author(s):  
Md. Nazir Hossen ◽  
Lin Wang ◽  
Harisha R. Chinthalapally ◽  
Joe D. Robertson ◽  
Kar-Ming Fung ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Gold Nanoparticles ◽  
Gene Silencing ◽  
Small Interfering Rna ◽  
Sirna Delivery ◽  
Delivery Systems ◽  
Ovarian Cancer Cells ◽  
Interfering Rna

Gene silencing using small-interfering RNA (siRNA) is a viable therapeutic approach; however, the lack of effective delivery systems limits its clinical translation. Herein, we doped conventional siRNA-liposomal formulations with gold nanoparticles to create “auroliposomes,” which significantly enhanced gene silencing. We targeted MICU1, a novel glycolytic switch in ovarian cancer, and delivered MICU1-siRNA using three delivery systems—commercial transfection agents, conventional liposomes, and auroliposomes. Low-dose siRNA via transfection or conventional liposomes was ineffective for MICU1 silencing; however, in auroliposomes, the same dose gave >85% gene silencing. Efficacy was evident from both in vitro growth assays of ovarian cancer cells and in vivo tumor growth in human ovarian cell line—and patient-derived xenograft models. Incorporation of gold nanoparticles shifted intracellular uptake pathways such that liposomes avoided degradation within lysosomes. Auroliposomes were nontoxic to vital organs. Therefore, auroliposomes represent a novel siRNA delivery system with superior efficacy for multiple therapeutic applications.

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