Abstract:
:The aim of this study is to establish the safe and effective ocular delivery system of therapeutic small interfering RNA (siRNA) in corneal neovascularization therapy. The major hurdle present in siRNA-based corneal neovascularization (CNV) therapy is severe cytotoxicity caused by repetitive drug treatment. A reducible branched polyethylenimine (rBPEI)-based nanoparticle (NP) system is utilized as a new siRNA carrier as a hope for CNV therapy. The thiolated BPEI is readily self-crosslinked in mild conditions to make high molecular weight rBPEI thus allowing the creation of stable siRNA/rBPEI nanoparticles (siRNA-rBPEI-NPs). In the therapeutic region, the rBPEI polymeric matrix is effectively degraded into nontoxic LMW BPEI inside the reductive cytosol causing the rapid release of the encapsulated siRNA into the cytosol to carry out its function. The fluorescent-labeled siRNA-rBPEI-NPs can release siRNA into the entire corneal region after subconjuctival injection into the eye of Sprague Dawley rats thus confirming the proof of concept of this system.
journal_name
Macromol Bioscijournal_title
Macromolecular bioscienceauthors
Han H,Son S,Son S,Kim N,Yhee JY,Lee JH,Choi JS,Joo CK,Lee H,Lee D,Kim WJ,Kim SH,Kwon IC,Kim H,Kim Kdoi
10.1002/mabi.201600051subject
Has Abstractpub_date
2016-11-01 00:00:00pages
1583-1597issue
11eissn
1616-5187issn
1616-5195journal_volume
16pub_type
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