This page shows you your search results in order of relevance. This is page number 8.

Order by Relevance | Date

Total 40893 results found since Jan 2013.

Co-delivery of Epirubicin and siRNA Using Functionalized Mesoporous Silica Nanoparticles Enhances In vitro and In vivo Drug Efficacy.
Abstract Development of drug resistance to anticancer drugs is an important challenge for cancer treatment. Recent studies focus on co-delivery of anticancer drugs and siRNA to overcome this challenge. Mesoporous silica nanoparticles (MSNs) are one of the promising nanoparticles that enable the delivery of drugs and siRNA simultaneously. MSNs coated with copolymer that able for co-delivery of drug and siRNA were prepared and characterized. In the present study, MSNs functionalized with polyethylenimine-polyethylene glycol (PEI-PEG) copolymer were prepared. MSNs were characterized using dynamic light scattering (DL...
Source: Current Drug Delivery - December 30, 2015 Category: Drugs & Pharmacology Authors: YahyaHanafi-Bojd M, Jaafari MR, Ramezanian N, Abnous K, Malaekeh-Nikouei B Tags: Curr Drug Deliv Source Type: research

siRNA targeting RBP2 inhibits expression, proliferation, tumorigenicity and invasion in thyroid carcinoma cells.
In conclusion, the transfection of RBP2-siRNA into papillary thyroid carcinoma K1 cells suppressed the expression of RBP2 in these cells, and reduced their proliferation, invasion, migration and tumorigenic potential. Therefore, targeting RBP2 may be an efficient approach to control thyroid carcinoma. PMID: 26788140 [PubMed - as supplied by publisher]
Source: Oncology Letters - January 21, 2016 Category: Cancer & Oncology Tags: Oncol Lett Source Type: research

EGF-modified mPEG-PLGA-PLL nanoparticle for delivering doxorubicin combined with Bcl-2 siRNA as a potential treatment strategy for lung cancer.
CONCLUSION: We conclude that co-delivery of Dox and Bcl-2-siRNA by tumor-targeted EGF-PEAL NPs could significantly inhibit lung cancer growth. PMID: 26739487 [PubMed - as supplied by publisher]
Source: Drug Delivery - February 16, 2016 Category: Drugs & Pharmacology Tags: Drug Deliv Source Type: research

Targeted silencing of survivin in cancer cells by siRNA loaded chitosan magnetic nanoparticles.
CONCLUSION: Although, mock-siRNA loaded/unloaded CS-MNPs weren't cytotoxic, cell-death of breast cancer cells was significantly increased, after the treatment of Survivin-siRNA-loaded CS-MNPs. This reveals, successful loading of Survivin-siRNA on CS-MNPs and significant silencing of Survivin expression by triggering cell-death. Consequently, CS-MNPs are highly efficient delivery systems for intact siRNAs. PMID: 27130312 [PubMed - as supplied by publisher]
Source: Expert Review of Anticancer Therapy - May 1, 2016 Category: Cancer & Oncology Tags: Expert Rev Anticancer Ther Source Type: research

Transcutaneous iontophoretic delivery of STAT3 siRNA using layer-by-layer chitosan coated gold nanoparticles to treat melanoma.
In conclusion, layer-by-layer chitosan coated AuNP can be developed as a carrier for iontophoretic delivery of STAT3 siRNA to treat melanoma. PMID: 27318964 [PubMed - as supplied by publisher]
Source: Colloids and Surfaces - June 2, 2016 Category: Biotechnology Authors: Labala S, Jose A, Venuganti VV Tags: Colloids Surf B Biointerfaces Source Type: research

Brain tumor-targeted therapy by systemic delivery of siRNA with Transferrin receptor-mediated core-shell nanoparticles
This study aims to investigate the therapeutic effects of intravenous administration of T7 peptide modified core-shell nanoparticles (named T7-LPC/siRNA NPs) on brain tumors. Layer-by-layer assembling of protamine/chondroitin sulfate/siRNA/cationic liposomes followed by T7 peptide modification has been carried out in order to obtain a targeted siRNA delivery system. In vitro cellular uptake experiments demonstrated a higher intracellular fluorescence intensity of siRNA in brain microvascular endothelial cells (BMVECs) and U87 glioma cells when treated with T7-LPC/siRNA NPs compared with PEG-LPC/siRNA NPs. In the co-culture...
Source: International Journal of Pharmaceutics - July 14, 2016 Category: Drugs & Pharmacology Source Type: research

Conjugates of HA2 with octaarginine-grafted HPMA copolymer offer effective siRNA delivery and gene silencing in cancer cells.
Abstract The key for successful gene silencing is to design a safe and efficient siRNA delivery system for the transfer of therapeutic nucleic acids into the target cells. Here, we describe the design of hydrophilic N-(2-hydroxypropyl)methacrylamide (HPMA) copolymer displaying multiple copies of octaarginine (R8) and its use in promoting the effective delivery of small interfering RNA (siRNA) molecules intracellularly. Fluorescein-5-isothiocyanate (FITC)-labeled HPMA copolymer-bound R8 (P-R8-FITC) was synthesized with increasing R8 molar ratios (4 to 9.5 mol-%) to define the optimal R8 content that allowed the pol...
Source: European Journal of Pharmaceutics and Biopharmaceutics - September 30, 2016 Category: Drugs & Pharmacology Authors: Golan M, Feinshtein V, David A Tags: Eur J Pharm Biopharm Source Type: research

Mechanisms of cellular uptake and endosomal escape of calcium-siRNA nanocomplexes
Publication date: 30 December 2016 Source:International Journal of Pharmaceutics, Volume 515, Issues 1–2 Author(s): Matan Goldshtein, Efrat Forti, Emil Ruvinov, Smadar Cohen Ca2+-siRNA nanocomplexes represent a simple yet an effective platform for siRNA delivery into the cell cytoplasm, with subsequent successful siRNA-induced target gene silencing. Herein, we aimed to elucidate the roles played by calcium ions in siRNA nanocomplex formation, cell uptake, and endosomal escape. We investigated whether the replacement of Ca2+in the nanocomplex by other bivalent cations would affect their cell entry and subsequent gene sil...
Source: International Journal of Pharmaceutics - October 9, 2016 Category: Drugs & Pharmacology Source Type: research

CXCR4-targeted modular peptide carriers for efficient anti-VEGF siRNA delivery
Publication date: 30 December 2016 Source:International Journal of Pharmaceutics, Volume 515, Issues 1–2 Author(s): Anna Egorova, Anastasia Shubina, Dmitriy Sokolov, Sergey Selkov, Vladislav Baranov, Anton Kiselev The application of small interfering RNA (siRNA) for specific gene inhibition is a promising strategy in gene therapy treatments. The efficient cellular delivery of therapeutic siRNA is a critical step in RNA interference (RNAi) application. Highly efficient siRNA carriers should be developed for specific cellular uptake, stable RNA-complexes formation and intracellular RNA release. To study these features, we...
Source: International Journal of Pharmaceutics - October 26, 2016 Category: Drugs & Pharmacology Source Type: research

Abstract B42: Silencing of DNA repair proteins with ECO/siRNA nanoparticles for the enhancement of radiation response in glioblastoma
In this study we investigate the use of these nanoparticles to deliver siRNA to inhibit ATM and DNApk activity and enhance radiation response in both glioma and glioma stem cell lines.Established glioma (U251) and glioma stem cell (NSC11) lines were used to evaluate the effectiveness of ECO nanoparticle delivery of siRNA in vitro . Cellular uptake of ECO nanoparticles loaded with fluorescent siRNA was assessed using flow cytometry and fluorescent microscopy, demonstrating the rapid uptake of ECO/siRNA nanoparticles in comparison to commercially available transfection agents. Protein and mRNA analyses revealed the kinetics ...
Source: Cancer Research - January 15, 2017 Category: Cancer & Oncology Authors: Jennifer A. Lee, Nadia Ayat, Anita Tandle, Zheng-Rong Lu, Kevin Camphausen Tags: Drug Delivery and Nanomedicine Source Type: research

STAT3-siRNA induced B16.F10 melanoma cell death: Association with VEGF downregulation than p-STAT3 knockdown
Publication date: Available online 30 May 2018 Source:Saudi Pharmaceutical Journal Author(s): Aws Alshamsan STAT3 knockdown by small interfering RNA (siRNA) has been described to inhibit carcinogenic growth in various types of tumors. Earlier we have reported delivery of siRNA by oleic acid- and stearic acid-modified-polyethylenimine and enhancement of silencing of STAT3 by small interfering RNA (siRNA) in B16.F10 melanoma cell lines and consequent tumor suppression. Present investigation mainly focused on the downstream events involved in B16.F10 melanoma cell death and consequent tumor suppression following knockdown of...
Source: Saudi Pharmaceutical Journal - May 31, 2018 Category: Drugs & Pharmacology Source Type: research

STAT3-siRNA induced B16.F10 melanoma cell death: more association with VEGF downregulation than p-STAT3 knockdown
Publication date: Available online 30 May 2018 Source:Saudi Pharmaceutical Journal Author(s): Aws Alshamsan STAT3 knockdown by small interfering RNA (siRNA) has been described to inhibit carcinogenic growth in various types of tumors. Earlier we have reported delivery of siRNA by oleic acid- and stearic acid-modified-polyethylenimine and enhancement of silencing of STAT3 by small interfering RNA (siRNA) in B16.F10 melanoma cell lines and consequent tumor suppression. Present investigation mainly focused on the downstream events involved in B16.F10 melanoma cell death and consequent tumor suppression following knockdown of...
Source: Saudi Pharmaceutical Journal - June 6, 2018 Category: Drugs & Pharmacology Source Type: research

Cholesterol-grafted chitosan micelles as a nanocarrier system for drug-siRNA co-delivery to the lung cancer cells.
Abstract Combined delivery of a therapeutic small interfering RNA (siRNA) and a chemotherapeutic agent to cancer cells is promising as anticancer therapy, which could offer enhanced cell killing potential and low side effect. However, simultaneous delivery to tumor is challenging. In our study, cholesterol-modified low molecular weight chitosan (MW ~ 15 kDa) was employed as a self-assembled delivery system for both siRNA and a hydrophobic chemotherapeutic agent, curcumin to cancer cells. The siRNA/curcumin loaded nanoparticles (C-CCM/siRNA) were physico-chemically characterized for particle size (165 ± ...
Source: International Journal of Biological Macromolecules - June 25, 2018 Category: Biochemistry Authors: Muddineti OS, Shah A, Rompicharla SVK, Ghosh B, Biswas S Tags: Int J Biol Macromol Source Type: research

STAT3-siRNA induced B16.F10 melanoma cell death: more association with VEGF downregulation than p-STAT3 knockdown
Publication date: Available online 30 May 2018Source: Saudi Pharmaceutical JournalAuthor(s): Aws AlshamsanAbstractSTAT3 knockdown by small interfering RNA (siRNA) has been described to inhibit carcinogenic growth in various types of tumors. Earlier we have reported delivery of siRNA by oleic acid- and stearic acid-modified-polyethylenimine and enhancement of silencing of STAT3 by small interfering RNA (siRNA) in B16.F10 melanoma cell lines and consequent tumor suppression. Present investigation mainly focused on the downstream events involved in B16.F10 melanoma cell death and consequent tumor suppression following knockdo...
Source: Saudi Pharmaceutical Journal - July 5, 2018 Category: Drugs & Pharmacology Source Type: research