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Total 3372 results found since Jan 2013.

Inhibitory Effect of Aptamer-Carbon Dot Nanomaterial-siRNA Complex on the Metastasis of Hepatocellular Carcinoma Cells by Interfering with FMRP
Eur J Pharm Biopharm. 2022 Mar 29:S0939-6411(22)00061-3. doi: 10.1016/j.ejpb.2022.03.013. Online ahead of print.ABSTRACTUsing small interfering RNA (siRNA) for the specific gene-silencing has been a novel therapeutic method for the treatment of incurable diseases such as malignancies. However, it remains a challenge whether siRNA can be safely and effectively delivered into target cells. Therefore, we synthesized fluorescent carbon dots (CDs) as a gene vector at the siRNA delivery system that induced efficient gene knockdown in vitro while binding aptamer AS1411 to resolve the difficulty in cell targeting. We found that CD...
Source: European Journal of Pharmaceutics and Biopharmaceutics - April 1, 2022 Category: Drugs & Pharmacology Authors: Xiaoliang Zhao Jie Yang Jing Zhang Xiangyun Wang Lulu Chen Chao Zhang Zhifa Shen Source Type: research

Bifunctional siRNA Against Pancreatic Cancer
In conclusion, combing TGF-β gene silencing with RIG-I signaling confers potent antitumor efficacy against pancreatic cancer by breaking tumor-induced CD8+ T cell suppression. Cancer Res; 73(6); 1709–20. ©2013 AACR.
Source: Cancer Research - March 14, 2013 Category: Cancer & Oncology Authors: Ellermeier, J., Wei, J., Duewell, P., Hoves, S., Stieg, M. R., Adunka, T., Noerenberg, D., Anders, H.-J., Mayr, D., Poeck, H., Hartmann, G., Endres, S., Schnurr, M. Tags: Microenvironment and Immunology Source Type: research

Amphipathic Homopolymers for siRNA Delivery: Probing Impact of Bifunctional Polymer Composition on Transfection.
In this study, we systematically explore the influence of the lipophilic group on the siRNA transfection properties of the polycationic-based delivery vectors. For this, a novel and modular synthetic strategy was developed for the preparation of polymers carrying a cationic site and a lipophilic group at each polymer repeat unit. These bifunctional polymers could form a complex with siRNA and deliver it to human colon carcinoma cells (HT-29-luc). In general, transfection capability increased with an increase in the chain length of the lipophilic moiety. The best transfection agent, a polymer containing ammonium groups and ...
Source: Biomacromolecules - April 22, 2014 Category: Biochemistry Authors: Buerkli C, Lee SH, Moroz E, Stuparu MC, Leroux JC, Khan A Tags: Biomacromolecules Source Type: research

Lentivirus vectors construction of SiRNA targeting interference GPC3 gene and its biological effects on liver cancer cell lines Huh-7
Conclusions The targeted GPC3 siRNA can effectively inhibit the expression of GPC3.
Source: Asian Pacific Journal of Tropical Medicine - October 12, 2014 Category: Tropical Medicine Source Type: research

Abstract 1428: Targeting RRM2 by siRNA inhibits cellular invasion and represents a rational approach for inhibition of metastasis of head and neck and lung cancers
Background: Ribonucleotide reductase subunit M2 (RRM2) has been frequently observed to be aberrantly overexpressed in various tumors. RRM2 is a key enzyme, and essential regulator of balanced deoxyribonucleotides (dNTPs). It is critical for DNA replication and repair, and hence cell survival. In addition to DNA synthesis, it has been reported to modulate cellular invasiveness. However, the mechanisms through which RRM2 affects the invasive phenotype have not been elucidated.Methods: We evaluated the expression of RRM2 protein in metastatic (n = 40) and non-metastatic (n = 40) head and neck squamous cell carcinoma (HNSCC) t...
Source: Cancer Research - August 2, 2015 Category: Cancer & Oncology Authors: Rahman, M. A., Amin, A. R. M. R., Zhang, J., Nannapaneni, S., Saba, N. F., Chen, Z. G., Shin, D. M. Tags: Tumor Biology Source Type: research

Inhibition of IL-8-mediated endothelial adhesion, VSMCs proliferation and migration by siRNA-TMEM98 suggests TMEM98's emerging role in atherosclerosis.
Authors: Lv G, Zhu H, Li C, Wang J, Zhao D, Li S, Ma L, Sun G, Li F, Zhao Y, Gao Y Abstract Transmembrane protein 98 (TMEM98), known as a novel gene related to lung cancer, hepatocellular carcinoma, differentiation of T helper 1 cells and normal eye development, has no defined role reported in terms of atherosclerosis (AS). To investigate the potential involvement of TMEM98 during AS processes, its obvious secretion and expression has been initially characterized in hyperlipidemia patients' serum and AS mice's serum respectively. We then explored the possible role of TMEM98 in the pathogenesis of AS in vitro. IL-8,...
Source: Oncotarget - November 22, 2017 Category: Cancer & Oncology Tags: Oncotarget Source Type: research

Enhancing the therapeutic effect via elimination of hepatocellular carcinoma stem cells using Bmi1 siRNA delivered by cationic cisplatin nanocapsules
Publication date: Available online 26 May 2018Source: Nanomedicine: Nanotechnology, Biology and MedicineAuthor(s): Tan Yang, Yuyuan Chen, Pengxuan Zhao, Huiying Xue, Jia You, Bin Li, Yong Liu, Chuanchuan He, Xiaojuan Zhang, Lingling Fan, Robert J. Lee, Lei Li, Xiang Ma, Chuanrui Xu, Guangya XiangResistance of hepatocellular carcinoma (HCC) to systemic chemotherapy is partially due to presence of drug-resistant cancer stem cells. Bmi1 protein is essential for survival and proliferation of HCC cancer stem cells (CSCs). Here, we report that Bmi1 siRNA (Bmi1siR) loaded in cationic nanocapsules of cisplatin (NPC) eliminated ste...
Source: Nanomedicine: Nanotechnology, Biology and Medicine - July 5, 2018 Category: Nanotechnology Source Type: research

Polyamidoamine dendrimers-based nanomedicine for combination therapy with siRNA and chemotherapeutics to overcome multidrug resistance.
Abstract Multidrug resistance (MDR) significantly decreases the therapeutic efficiency of anti-cancer drugs. Its reversal could serve as a potential method to restore the chemotherapeutic efficiency. Downregulation of MDR-related proteins with a small interfering RNA (siRNA) is a promising way to reverse the MDR effect. Additionally, delivery of small molecule therapeutics simultaneously with siRNA can enhance the efficiency of chemotherapy by dual action in MDR cell lines. Here, we conjugated the dendrimer, generation 4 polyamidoamine (G4 PAMAM), with a polyethylene glycol (PEG)-phospholipid copolymer. The amphip...
Source: European Journal of Pharmaceutics and Biopharmaceutics - January 8, 2019 Category: Drugs & Pharmacology Authors: Pan J, Palmerston Mendes L, Yao M, Filipczak N, Garai S, Thakur GA, Sarisozen C, Torchilin VP Tags: Eur J Pharm Biopharm Source Type: research

Cancers, Vol. 11, Pages 442: Targeted siRNA Nanoparticles for Mammary Carcinoma Therapy
Gershon Golomb Non-viral, polymeric-based, siRNA nanoparticles (NPs) have been proposed as promising gene delivery systems. Encapsulating siRNA in targeted NPs could confer improved biological stability, extended half-life, enhanced permeability, effective tumor accumulation, and therapy. In this work, a peptide derived from apolipoprotein B100 (ApoB-P), the protein moiety of low-density lipoprotein, was used to target siRNA-loaded PEGylated NPs to the extracellular matrix/proteoglycans (ECM/PGs) of a mammary carcinoma tumor. siRNA against osteopontin (siOPN), a protein involved in breast cancer development and progre...
Source: Cancers - March 28, 2019 Category: Cancer & Oncology Authors: Meital Ben-David-Naim Arie Dagan Etty Grad Gil Aizik Mirjam M. Nordling-David Alisa Morss Clyne Zvi Granot Gershon Golomb Tags: Article Source Type: research

Akt1 and Jak1 siRNA based silencing effects on the proliferation and apoptosis in head and neck squamous cell carcinoma.
In conclusion, the combination of siRNA-mediated gene-silencing strategy can be considered as a valuable and safe approach for sensitizing cancer cells to chemotherapeutic agents thus proposed further studies regarding this issue to approve some siRNA based therapeutics for using in clinic. PMID: 31348981 [PubMed - as supplied by publisher]
Source: Gene - July 22, 2019 Category: Genetics & Stem Cells Authors: Saatloo MV, Aghbali AA, Koohsoltani M, Khosroushahi AY Tags: Gene Source Type: research

Glycyrrhetinic acid-modified graphene oxide mediated siRNA delivery for enhanced liver-cancer targeting therapy.
Abstract Graphene oxide (GO) has attracted huge attention in biomedical field in recent years. However, limited attempts have been invested in utilizing GO on active targeted delivery for gene therapy in liver cancer treatments. Glycyrrhetinic acid (GA) has been reported to be widely used as a targeting ligand to functionalize nanomaterials to treat hepatocellular carcinoma. In this article, GA is employed as a liver targeting ligand to construct GA, polyethylene glycol (PEG), polyamidoamine dendrimer (Dendrimer) and nano-graphene oxide (NGO) conjugate (GA-PEG-NGO-Dendrimer, GPND) for siRNA delivery for the first ...
Source: European Journal of Pharmaceutical Sciences - August 21, 2019 Category: Drugs & Pharmacology Authors: Qu Y, Sun F, He F, Yu C, Lv J, Zhang Q, Liang D, Yu C, Wang J, Zhang X, Xu A, Wu J Tags: Eur J Pharm Sci Source Type: research

Evaluation of therapeutic effect of targeting nanobubbles conjugated with NET-1 siRNA by shear wave elastography: an in vivo study of hepatocellular carcinoma bearing mice model.
In conclusion, TNBS conjugated with NET-1 siRNA inhibited tumor growth and prolonged the life of experimental animals. SWE provided a noninvasive and real time imaging method to detect the changes in tumor development. PMID: 31544556 [PubMed - in process]
Source: Drug Delivery - September 25, 2019 Category: Drugs & Pharmacology Tags: Drug Deliv Source Type: research

Biocompatible co-loading vehicles for delivering both nanoplatin cores and siRNA to treat hepatocellular carcinoma
Publication date: Available online 26 October 2019Source: International Journal of PharmaceuticsAuthor(s): Minsi Li, Pengxuan Zhao, Ting Fan, Yan Chen, Xiaojuan Zhang, Chuanchuan He, Tan Yang, Robert J. Lee, Muhammad Waseem Khan, Shahid Masood Raza, Xiang Ma, Yao Lu, Guangya XiangAbstractBmi-1 is a gene related to malignant transformation in hepatocellular carcinoma (HCC). The liver cancer cells developed the ability to tolerate CDDP treatment with the elevation of Bmi-1. Bmi-1 is also an oncogene promoting malignance of tumor and an anti-cancer target in many studies. Herein, a biocompatible nanocarrier was designed in th...
Source: International Journal of Pharmaceutics - October 26, 2019 Category: Drugs & Pharmacology Source Type: research