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Source: Nanomedicine: Nanotechnology, Biology and Medicine
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Total 26 results found since Jan 2013.
Delivery of siRNA using folate receptor-targeted pH-sensitive polymeric nanoparticles for rheumatoid arthritis therapy
Publication date: Available online 22 May 2019Source: Nanomedicine: Nanotechnology, Biology and MedicineAuthor(s): Xiangshi Sun, Shiyan Dong, Xiangyu Li, Kongtong Yu, Fengying Sun, Robert J. Lee, Youxin Li, Lesheng TengAbstractSystemic delivery of siRNA to target tissues is difficult to achieve owing to its limited cellular uptake and poor serum stability. Herein, polymeric nanoparticles were developed for systemic administration of siRNA to inflamed tissues. The polymeric nanoparticles were composed of PK3 as a pH-sensitive polymer, folate-polyethyleneglycol-poly(lactide-co-glycolide) as a targeting ligand, and a DOTAP/si...
Source: Nanomedicine: Nanotechnology, Biology and Medicine - May 23, 2019 Category: Nanotechnology Source Type: research
Silencing AXL by covalent siRNA-gelatin-antibody nanoconjugate inactivates mTOR/EMT pathway and stimulates p53 for TKI sensitization in NSCLC
Publication date: Available online 12 May 2019Source: Nanomedicine: Nanotechnology, Biology and MedicineAuthor(s): Dhananjay Suresh, Ajit Zambre, Soumavo Mukherjee, Shreya Ghoshdastidar, Yuexu Jiang, Trupti Joshi, Anandhi Upendran, Raghuraman KannanAbstractNon-small cell lung cancer (NSCLC) is the leading cause of cancer mortality with the 5-year survival rate remains a dismal 16% for the past 40 years. Drug resistance is a major obstacle to achieving long-term patient survival. Identifying and validating molecular biomarkers responsible for resistance and thereby adopting multi-directional therapy is necessary to imp...
Source: Nanomedicine: Nanotechnology, Biology and Medicine - May 12, 2019 Category: Nanotechnology Source Type: research
Sirtuin 6 mediated stem cell Cardiomyogenesis on protein coated Nanofibrous scaffolds
This study, thus, demonstrates that protein coated scaffolds can augment cardiomyogenic differentiation of stem cells through a combination of topographical and biomolecular signals.Graphical AbstractCollagen coated polymer nanofibers promote stem cell cardiomyogenesis through Sirtuin6-mediated Wnt signaling pathway.
Source: Nanomedicine: Nanotechnology, Biology and Medicine - March 27, 2019 Category: Nanotechnology Source Type: research
Cationic lipoplexes for treatment of cancer stem cell-derived murine lung tumors
This study outlines the fabrication of a lipoplex of SOX2 small interfering RNA (CL-siSOX2) for targeted treatment of SOX2-enriched, CSC-derived orthotopic and xenograft lung tumors in CB-17 SCID mice. CL-siSOX2 induced tumor contraction in cisplatin-naïve and cisplatin-treated groups by 85% and 94% respectively. Reduction in tumor weight and volume following treatment with CL-siSOX2 was associated with reduced protein expression of SOX2 and markers of tumor initiation, inflammation, invasion and metastasis in mice tumor xenografts. In addition, histological staining of lung tumor sections showed reduction in SOX2 express...
Source: Nanomedicine: Nanotechnology, Biology and Medicine - March 20, 2019 Category: Nanotechnology Source Type: research
Chronic administration of nano-sized PAMAM dendrimers in vivo inhibits EGFR-ERK1/2-ROCK signaling pathway and attenuate diabetes-induced vascular remodeling and dysfunction
This study showed chronic in vivo administration of PAMAM dendrimers in an animal model of diabetes inhibited EGFR-ERK1/2-ROCK signaling and improved diabetes-induced vascular remodeling and dysfunction in a dose, generation (G6 > G5) and surface chemistry-dependent manner (cationic> anionic> neutral). Thus, naked PAMAM dendrimers have the propensity to modulate key (e.g. EGFR) cell signaling cascades with associated pharmacological consequences in vivo that are dependent on their physicochemical properties. PAMAMs, alone or in combination with vasculoprotective agents, might therefore have a beneficial role in t...
Source: Nanomedicine: Nanotechnology, Biology and Medicine - March 5, 2019 Category: Nanotechnology Source Type: research
Cationic lipoplexes for treatment of cancer stem cell-derived murine lung tumors.
This study outlines the fabrication of a lipoplex of SOX2 small interfering RNA (CL-siSOX2) for targeted treatment of SOX2-enriched, CSC-derived orthotopic and xenograft lung tumors in CB-17 SCID mice. CL-siSOX2 induced tumor contraction in Cisplatin-naïve and Cisplatin-treated groups by 85% and 94% respectively. Reduction in tumor weight and volume following treatment with CL-siSOX2 was associated with reduced protein expression of SOX2 and markers of tumor initiation, inflammation, invasion and metastasis in mice tumor xenografts. And histological staining of lung tumor sections showed reduction in SOX2 expression was a...
Source: Nanomedicine: Nanotechnology, Biology and Medicine - March 1, 2019 Category: Nanotechnology Source Type: research
Pulmonary delivery of polyplexes for combined PAI-1 gene silencing and CXCR4 inhibition to treat lung fibrosis
This report describes the development of polyplexes based on CXCR4-inhibiting poly(ethylenimine) derivative (PEI-C) for pulmonary delivery of siRNA to silence plasminogen activator inhibitor-1 (siPAI-1) as a new combination treatment of pulmonary fibrosis (PF). Safety and delivery efficacy of the PEI-C/siPAI-1 polyplexes was investigated in vitro in primary lung fibroblasts isolated from mice with bleomycin-induced PF. Biodistribution analysis following intratracheal administration of fluorescently labeled polyplexes showed prolonged retention in the lungs. Treatment of mice with bleomycin-induced PF using the PEI-C/siPAI-...
Source: Nanomedicine: Nanotechnology, Biology and Medicine - July 10, 2018 Category: Nanotechnology Source Type: research
Mannose-conjugated layered double hydroxide nanocomposite for targeted siRNA delivery to enhance cancer therapy
Publication date: Available online 22 June 2017Source: Nanomedicine: Nanotechnology, Biology and MedicineAuthor(s): Li Li, Run Zhang, Wenyi Gu, Zhi Ping XuAbstractSheet-like layered double hydroxide nanoparticles (LDH NPs) have showed great potentials in biomedical applications such as nanocarriers for drug and gene delivery, biosensors and imaging agents. However, target delivery of drugs and genes using LDH NPs to the desired tumor sites is a major challenge in cancer therapy. The aim of this study is to develop a functional LDH-based nanocomposite for target delivery of siRNA to cancer cells. Mannose as a targeting moie...
Source: Nanomedicine: Nanotechnology, Biology and Medicine - July 10, 2018 Category: Nanotechnology Source Type: research
Pulmonary delivery of polyplexes for combined PAI-1 gene silencing and CXCR4 inhibition to treat lung fibrosis
This report describes the development of polyplexes based on CXCR4-inhibiting poly(ethylenimine) derivative (PEI-C) for pulmonary delivery of siRNA to silence plasminogen activator inhibitor-1 (siPAI-1) as a new combination treatment of pulmonary fibrosis (PF). Safety and delivery efficacy of the PEI-C/siPAI-1 polyplexes was investigated in vitro in primary lung fibroblasts isolated from mice with bleomycin-induced PF. Biodistribution analysis following intratracheal administration of fluorescently labeled polyplexes showed prolonged retention in the lungs. Treatment of mice with bleomycin-induced PF using the PEI-C/siPAI-...
Source: Nanomedicine: Nanotechnology, Biology and Medicine - July 5, 2018 Category: Nanotechnology Source Type: research
Mannose-conjugated layered double hydroxide nanocomposite for targeted siRNA delivery to enhance cancer therapy
Publication date: Available online 22 June 2017Source: Nanomedicine: Nanotechnology, Biology and MedicineAuthor(s): Li Li, Run Zhang, Wenyi Gu, Zhi Ping XuAbstractSheet-like layered double hydroxide nanoparticles (LDH NPs) have showed great potentials in biomedical applications such as nanocarriers for drug and gene delivery, biosensors and imaging agents. However, target delivery of drugs and genes using LDH NPs to the desired tumor sites is a major challenge in cancer therapy. The aim of this study is to develop a functional LDH-based nanocomposite for target delivery of siRNA to cancer cells. Mannose as a targeting moie...
Source: Nanomedicine: Nanotechnology, Biology and Medicine - July 5, 2018 Category: Nanotechnology Source Type: research
Pulmonary delivery of polyplexes for combined PAI-1 gene silencing and CXCR4 inhibition to treat lung fibrosis
This report describes the development of polyplexes based on CXCR4-inhibiting poly(ethylenimine) derivative (PEI-C) for pulmonary delivery of siRNA to silence plasminogen activator inhibitor-1 (siPAI-1) as a new combination treatment of pulmonary fibrosis (PF). Safety and delivery efficacy of the PEI-C/siPAI-1 polyplexes was investigated in vitro in primary lung fibroblasts isolated from mice with bleomycin-induced PF. Biodistribution analysis following intratracheal administration of fluorescently labeled polyplexes showed prolonged retention in the lungs. Treatment of mice with bleomycin-induced PF using the PEI-C/siPAI-...
Source: Nanomedicine: Nanotechnology, Biology and Medicine - May 16, 2018 Category: Nanotechnology Source Type: research
Intraperitoneal Nanotherapy for Metastatic Ovarian Cancer Based on siRNA-Mediated Suppression of DJ-1 Protein Combined with a Low Dose of Cisplatin
Publication date: Available online 7 April 2018 Source:Nanomedicine: Nanotechnology, Biology and Medicine Author(s): Canan Schumann, Stephanie Chan, Jess A. Millar, Yuliya Bortnyak, Katherine Carey, Alex Fedchyk, Leon Wong, Tetiana Korzun, Abraham S. Moses, Anna Lorenz, Delany Shea, Olena Taratula, Oleh Khalimonchuk, Oleh Taratula Herein, we report an efficient combinatorial therapy for metastatic ovarian cancer based on siRNA-mediated suppression of DJ-1 protein combined with a low dose of cisplatin. DJ-1 protein modulates, either directly or indirectly, different oncogenic pathways that support and promote survival, gro...
Source: Nanomedicine: Nanotechnology, Biology and Medicine - April 8, 2018 Category: Nanotechnology Source Type: research
Chemo-biologic combinatorial drug delivery using folate receptor-targeted dendrimer nanoparticles for lung cancer treatment
Publication date: Available online 16 November 2017 Source:Nanomedicine: Nanotechnology, Biology and Medicine Author(s): Narsireddy Amreddy, Anish Babu, Janani Panneerselvam, Akhil Srivastava, Ranganayaki Muralidharan, Allshine Chen, Yan D. Zhao, Anupama Munshi, Rajagopal Ramesh Co-administration of functionally distinct anti-cancer agents has emerged as an efficient strategy in lung cancer treatment. However, a specially designed drug delivery system is required to co-encapsulate functionally different agents, such as a combination of siRNA and chemotherapy, for targeted delivery. We developed a folic acid (FA) -conjugat...
Source: Nanomedicine: Nanotechnology, Biology and Medicine - November 28, 2017 Category: Nanotechnology Source Type: research
Local delivery of siRNA-loaded calcium phosphate nanoparticles abates pulmonary inflammation
Publication date: Available online 8 August 2017 Source:Nanomedicine: Nanotechnology, Biology and Medicine Author(s): Annika Frede, Bernhard Neuhaus, Torben Knuschke, Munisch Wadwa, Sebastian Kollenda, Robert Klopfleisch, Wiebke Hansen, Jan Buer, Dunja Bruder, Matthias Epple, Astrid M. Westendorf The local interference of cytokine signaling mediated by siRNA-loaded nanoparticles might be a promising new therapeutic approach to dampen inflammation during pulmonary diseases. For the local therapeutic treatment of pulmonary inflammation, we produced multi-shell nanoparticles consisting of a calcium phosphate core, coated wit...
Source: Nanomedicine: Nanotechnology, Biology and Medicine - August 9, 2017 Category: Nanotechnology Source Type: research
Amelioration of cirrhotic portal hypertension by targeted cyclooxygenase-1 siRNA delivery to liver sinusoidal endothelium with polyethylenimine grafted hyaluronic acid
In this study, hyaluronate-graft-polyethylenimine (HA-PEI) was synthesized for the targeted delivery of COX-1 siRNA to LSECs. Compared to non-targeted PEI, HA-PEI mediated much more efficient siRNA delivery, which resulted in potent targeted gene silencing in LSECs. In vivo, HA-PEI notably increased the accumulation of siRNA along the sinusoidal lining of the liver, inhibited over-activation of the COX-1/TXA2 pathway in LSECs, and successfully reduced portal pressure in cirrhotic mice. These results highlight the potential of HA-PEI complexed siRNA to serve as a LSECs-specific nanomedical system for effective gene therapy ...
Source: Nanomedicine: Nanotechnology, Biology and Medicine - July 13, 2017 Category: Nanotechnology Source Type: research
