Filtered By:
Nutrition: Iron
This page shows you your search results in order of relevance.
Order by Relevance | Date
Total 255 results found since Jan 2013.
Interleukin-4 receptor-targeted delivery of Bcl-xL siRNA sensitizes tumors to chemotherapy and inhibits tumor growth.
In this study, we exploited IL-4R-targeted delivery of Bcl-xL siRNA to IL-4R-expressing tumor cells in order to sensitize them to chemotherapy. To target IL-4R, an IL-4R-binding peptide, IL4RPep-1, was attached to branched polyethyleneimine-superparamagnetic iron oxide nanoparticles (BPEI-SPION). These nanoparticles were then complexed with Bcl-xL-targeting siRNA. IL-4R-targeted BPEI-SPION/Bcl-xL siRNA more efficiently reduced Bcl-xL gene expression and enhanced cytotoxicity of doxorubicin in MDA-MB231 breast tumor cells compared to untargeted BPEI-SPION/Bcl-xL siRNA. The siRNA was released from the complexes after 15 h o...
Source: Biomaterials - July 15, 2017 Category: Materials Science Authors: Guruprasath P, Kim J, Gunassekaran GR, Chi L, Kim S, Park RW, Kim SH, Baek MC, Bae SM, Kim SY, Kim DK, Park IK, Kim WJ, Lee B Tags: Biomaterials Source Type: research
Worm ‐Like Biomimetic Nanoerythrocyte Carrying siRNA for Melanoma Gene Therapy
This study reports a third type of nanoworm, biomimetic nanoerythrocytes for siRNA delivery, except for filomicelle and nanoworm iron ‐oxide particle, which is the first approach that allows for targeted siRNA delivery by a process involving red blood cell (RBC) membrane cloaking of charge‐reversible polyplexes of siRNA and polycation. RBC membrane cloaking protects siRNA from RNase A degradation. Moreover, the RBC membrane‐ cloaked charge‐reversible siRNA vector (RBC‐reversible polyplex (RP)) not only stays longer in the blood circulation than that of negatively charged bovine serum albumin (BSA) spheres and pos...
Source: Small - October 17, 2018 Category: Nanotechnology Authors: Yanming Wang,
Xin Ji,
Miaoliang Ruan,
Wen Liu,
Rongguang Song,
Jian Dai,
Wei Xue Tags: Full Paper Source Type: research
Targeted nanomedicine with anti-EGFR scFv for siRNA delivery into triple negative breast cancer cells.
Abstract
A targeted nanomedicine with humanized anti-EGFR scFv (NM-scFv) was developed for siRNA delivery into triple negative breast cancer (TNBC) cells. NM-scFv consisted of i) targeted nanovector (NV-scFv): nano-cargo with targeting properties; ii) siRNA: pharmacological agent and iii) cationic polymers (chitosan, poly-L-arginine): for siRNA complexation and endosomal escape. NV-scFv was based on superparamagnetic nanoparticle (SPION) labeled with DylightTM680, a PEG layer and a humanized anti-EGFR scFv. The PEG density was optimized from 236±3 to 873±4 PEGs/NV-scFv and the number of targeting ligands per NV-...
Source: European Journal of Pharmaceutics and Biopharmaceutics - October 12, 2020 Category: Drugs & Pharmacology Authors: Vinh Nguyen P, Hervé-Aubert K, David S, Lautram N, Passirani C, Chourpa I, Aubrey N, Allard-Vannier E Tags: Eur J Pharm Biopharm Source Type: research
Combination of Nanovectorized siRNA Directed against Survivin with Doxorubicin for Efficient Anti-Cancer Activity in HER2+ Breast Cancer Cells
In conclusion, a combination of anti-Survivin siRNA and DOX would be a good alternative in HER2+ breast cancer therapy.PMID:36432729 | DOI:10.3390/pharmaceutics14112537
Source: Cancer Control - November 26, 2022 Category: Cancer & Oncology Authors: Sahar Eljack Emilie Allard-Vannier Yoann Misericordia Katel Herv é-Aubert Nicolas Aubrey Igor Chourpa Areeg Faggad Stephanie David Source Type: research
Stealth magnetic nanocarriers of siRNA as platform for breast cancer theranostics
Publication date: 5 November 2017 Source:International Journal of Pharmaceutics, Volume 532, Issue 2 Author(s): J. Bruniaux, S. Ben Djemaa, K. Hervé-Aubert, H. Marchais, I. Chourpa, S. David The endogenous mechanism of RNA interference is more and more used in research to obtain specific down-regulation of gene expression in diseases such as breast cancer. Currently, despite the new fields of study open up by RNA interference, the rapid degradation of siRNA by nucleases and their negative charges prevent them from crossing cell membranes. To overcome these limitations, superparamagnetic iron oxide nanoparticles (SPIONs) ...
Source: International Journal of Pharmaceutics - October 11, 2017 Category: Drugs & Pharmacology Source Type: research
Formulation and in vitro evaluation of a siRNA delivery nanosystem decorated with gH625 peptide for triple negative breast cancer theranosis.
Abstract
The development of an efficient small interfering RNA (siRNA) delivery system has held scientists interest since the discovery of the RNA interference mechanism (RNAi). This strategy gives hope for the treatment of many severe diseases. Herein, we developed hybrid nanovectors able to deliver siRNA to triple negative breast cancer cells. The nanovectors are based on PEGylated superparamagnetic iron oxide nanoparticles (SPION) functionalized with gH625 peptide, chitosan and poly-L-arginine. Every component has a key role and specific function: SPION is the core scaffolding the nanovector; PEG participates i...
Source: European Journal of Pharmaceutics and Biopharmaceutics - July 28, 2018 Category: Drugs & Pharmacology Authors: Ben Djemaa S, David S, Hervé-Aubert K, Falanga A, Galdiero S, Allard-Vannier E, Chourpa I, Munnier E Tags: Eur J Pharm Biopharm Source Type: research
Antifibrotic effects of specific siRNA targeting connective tissue growth factor delivered by polyethyleneimine ‑functionalized magnetic iron oxide nanoparticles on LX‑2 cells.
Antifibrotic effects of specific siRNA targeting connective tissue growth factor delivered by polyethyleneimine‑functionalized magnetic iron oxide nanoparticles on LX‑2 cells.
Mol Med Rep. 2019 Nov 20;:
Authors: Yu Q, Xiong X, Zhao L, Xu T, Wang Q
Abstract
Connective tissue growth factor (CTGF) is a possible key determinant of progressive fibrosis. Nanotechnology has been considered as a potential tool for developing novel drug delivery systems for various diseases, including liver fibrosis. The present study aimed to investigate the potential antifibrotic activity of CTGF small interfering RNA (si...
Source: Molecular Medicine Reports - November 22, 2019 Category: Molecular Biology Tags: Mol Med Rep Source Type: research
Lysosomal escaped protein nanocarriers for nuclear-targeted siRNA delivery
Anal Bioanal Chem. 2021 Mar 26. doi: 10.1007/s00216-021-03297-5. Online ahead of print.ABSTRACTIn the process of drug carrier design, lysosome degradation in cells is often neglected, which makes a considerable number of drugs not play a role. Here, we have constructed a tumor treatment platform (Apn/siRNA/NLS/HA/Apt) with unique lysosomal escape function and excellent cancer treatment effect. Apoferritin (Apn) has attracted more and more attention because of its high uniformity, modifiability, and controllability. Meanwhile, its endogenous nature can avoid the risk of immune response being eliminated. We used aptamer modi...
Source: Analytical and Bioanalytical Chemistry - March 26, 2021 Category: Chemistry Authors: Xiuping Cao Xinxin Shang Yingshu Guo Xiaofei Zheng Wenxin Li Di Wu Li Sun Shanliang Mu Chuanen Guo Source Type: research
Magnetically responsive hybrid nanoparticles for in vitro siRNA delivery to breast cancer cells
Publication date: June 2019Source: Materials Science and Engineering: C, Volume 99Author(s): Milene Dalmina, Frederico Pittella, Jelver Alexander Sierra, Gabriela Regina Rosa Souza, Adny Henrique Silva, André Avelino Pasa, Tânia Beatriz Creczynski-PasaAbstractShort interfering RNA (siRNA) showed to be a viable alternative to a better prognosis in cancer therapy. Nevertheless, the successful application of this strategy still depends on the development of nanocarriers for the safe delivery of siRNA into the diseased tissue, which mostly occurs by passive accumulation. When an external magnetic field is applied, magnetic n...
Source: Materials Science and Engineering: C - February 23, 2019 Category: Materials Science Source Type: research
Magnetic nanocarriers for the specific delivery of siRNA: contribution of breast cancer cells active targeting for down-regulation efficiency
In conclusion, TS-MSN are promising nanocarriers for the specific and efficient delivery of siRNA to HER2-overexpressing breast cancer cells.Graphical abstract
Source: International Journal of Pharmaceutics - July 26, 2019 Category: Drugs & Pharmacology Source Type: research
Iron-siRNA Nanohybrids for Enhanced Chemodynamic Therapy via Ferritin Heavy Chain Downregulation
Angew Chem Int Ed Engl. 2023 Mar 23:e202302255. doi: 10.1002/anie.202302255. Online ahead of print.ABSTRACTFerrous iron (Fe2+) has more potent hydroxyl radical (•OH)-generating ability than other Fenton-type metal ions, making Fe-based nanomaterials attractive for chemodynamic therapy (CDT). However, because Fe2+ can be converted by ferritin heavy chain (FHC) to nontoxic ferric form and then sequestered in ferritin, therapeutic outcomes of Fe-mediated CDT agents are still far from satisfactory. Here we report the synthesis of siRNA-embedded Fe0 nanoparticles (Fe0-siRNA NPs) for self-reinforcing CDT via FHC downregulation...
Source: Angewandte Chemie - March 23, 2023 Category: Chemistry Authors: Jun Wang Hongye Ding Yang Zhu Yina Liu Meili Yu Huilan Cai Rujiang Ao Hongwei Huang Peng Gong Yaxin Liao Zhaolin Chen Lisen Lin Xiaoyuan Chen Huanghao Yang Source Type: research
Evaluation of liver specific ionizable lipid nanocarrierin the delivery of siRNA
Chem Phys Lipids. 2022 May 24:105207. doi: 10.1016/j.chemphyslip.2022.105207. Online ahead of print.ABSTRACTHepcidin, a key regulator of iron homeostasis, has been implicated in the pathogenesis of various iron-related diseases. Although small interfering RNA (siRNA) are potent to modulate the expression of hepcidin, their bioavailability remains a major issue. The β-galactopyranoside-conjugated liposomes (GAL-liposome) targeting liver synthesized hepcidin were prepared by thin lipid film hydration method to encapsulate siRNA and the conjugation of β-galactopyranoside to the lipid nanocarrier was achieved by covalent che...
Source: Chemistry and Physics of Lipids - May 27, 2022 Category: Lipidology Authors: Shilpa Rana Archana Bhatnagar Suman Singh Nirmal Prabhakar Source Type: research
