NANOPARTICLE-MEDIATED siRNA DELIVERY FOR LUNG CANCER TREATMENT
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Nanolipoparticles-mediated MDR1 siRNA delivery reduces doxorubicin resistance in breast cancer cells and silences MDR1 expression in xenograft model of human breast cancer
Objective(s): P-glycoprotein (P-gp) is an efflux protein, the overexpression of which has been associated with multidrug resistance in various cancers. Although siRNA delivery to reverse P-gp expression may be promising for sensitizing of tumor cells to cytotoxic drugs, the therapeutic use of siRNA requires effective carriers that can deliver siRNA intracellularly with minimal toxicity on targe...
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Objective(s): Lipid-based nanoparticles (NLP) are PEGylated carriers composed of lipids and encapsulated nucleic acids with a diameter less than 100 nm. The presence of PEG in the NLP formulation improves the particle pharmacokinetic behavior. The purpose of this study was to prepare and characterize NLPs containing MDR1 siRNA and evaluate their cytotoxicity and cellular uptake. MDR1 siRNA coul...
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Activation of the epithelial to mesenchymal transition (EMT) in photodynamic therapy (PDT) can lead to the recurrence and progression of tumors. To enhance the effects of PDT, it is essential to inhibit the Wnt/β-catenin signaling pathway involved in EMT progression. Herein, we used polyethylene glycol-polyethyleneimine-chlorin e6 (PEG-PEI-Ce6) nanoparticles to efficiently deliver Wnt-1 small i...
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BACKGROUND Inhibition of cyclin-dependent kinases 4 (CDK4) activity by Small-interfering RNA (siRNA) has been demonstrated as one of the promising approaches to treat cancer. MATERIALS AND METHODS CDK4 siRNA was packaged in a lipid nanoparticle (LNP)-based delivery system that consists of an ionizable cationic lipid, helper lipid and polyethylene glycol (PEG)-lipid. The physical properties, i...
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RNA interference (RNAi) is a gene regulation mechanism initiated by RNA molecules that enables sequence-specific gene silencing by promoting degradation of specific mRNAs. Molecular therapy using small interfering RNA (siRNA) has shown great therapeutic potential for diseases caused by abnormal gene overexpression or mutation. The major challenges to application of siRNA therapeutics include th...
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