Dual stimuli-responsive bispillar[5]arene-based nanoparticles for precisely selective drug delivery in cancer cells

2019 ◽  
Vol 55 (16) ◽  
pp. 2340-2343 ◽  
Author(s):  
Qian Cheng ◽  
Kun-Xu Teng ◽  
Yuan-Fu Ding ◽  
Ludan Yue ◽  
Qing-Zheng Yang ◽  
...  

Bispillar[5]arene nanoparticles exhibited dual stimuli-responsiveness towards both spermine and glutathione, allowing selective drug release in lung cancer cells.

2020 ◽  
Vol 21 (11) ◽  
pp. 902-909
Author(s):  
Jingxin Zhang ◽  
Weiyue Shi ◽  
Gangqiang Xue ◽  
Qiang Ma ◽  
Haixin Cui ◽  
...  

Background: Among all cancers, lung cancer has high mortality among patients in most of the countries in the world. Targeted delivery of anticancer drugs can significantly reduce the side effects and dramatically improve the effects of the treatment. Folate, a suitable ligand, can be modified to the surface of tumor-selective drug delivery systems because it can selectively bind to the folate receptor, which is highly expressed on the surface of lung tumor cells. Objective: This study aimed to construct a kind of folate-targeted topotecan liposomes for investigating their efficacy and mechanism of action in the treatment of lung cancer in preclinical models. Methods: We conjugated topotecan liposomes with folate, and the liposomes were characterized by particle size, entrapment efficiency, cytotoxicity to A549 cells and in vitro release profile. Technical evaluations were performed on lung cancer A549 cells and xenografted A549 cancer cells in female nude mice, and the pharmacokinetics of the drug were evaluated in female SD rats. Results: The folate-targeted topotecan liposomes were proven to show effectiveness in targeting lung tumors. The anti-tumor effects of these liposomes were demonstrated by the decreased tumor volume and improved therapeutic efficacy. The folate-targeted topotecan liposomes also lengthened the topotecan blood circulation time. Conclusion: The folate-targeted topotecan liposomes are effective drug delivery systems and can be easily modified with folate, enabling the targeted liposomes to deliver topotecan to lung cancer cells and kill them, which could be used as potential carriers for lung chemotherapy.


2016 ◽  
Vol 17 (1-2) ◽  
Author(s):  
Julia Modrejewski ◽  
Johanna-Gabriela Walter ◽  
Imme Kretschmer ◽  
Evren Kemal ◽  
Mark Green ◽  
...  

AbstractThe purpose of this study was to develop a model system for targeted drug delivery. This system should enable targeted drug release at a certain tissue in the body. In conventional drug delivery systems, drugs are often delivered unspecifically resulting in unwarranted adverse effects. To circumvent this problem, there is an increasing demand for the development of intelligent drug delivery systems allowing a tissue-specific mode of delivery. Within this study, nanoparticles consisting of two biocompatible polymers are used. Because of their small size, nanoparticles are well-suited for effective drug delivery. The small size affects their movement through cell and tissue barriers. Their cellular uptake is easier when compared to larger drug delivery systems. Paclitaxel was encapsulated into the nanoparticles as a model drug, and to achieve specific targeting an aptamer directed against lung cancer cells was coupled to the nanoparticles surface. Nanoparticles were characterized by dynamic light scattering (DLS), transmission electron microscopy (TEM), fourier transform infrared spectroscopy (FTIR), and nanotracking analysis (NTA). Also their surface charge was characterized from ζ-potential measurements. Their preparation was optimized and subsequently specificity of drug-loaded and aptamer-functionalized nanoparticles was investigated using lung cancer cells.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Xiaoxia Song ◽  
Zhi Chen ◽  
Xue Zhang ◽  
Junfeng Xiong ◽  
Teng Jiang ◽  
...  

AbstractMagnetic micro/nanorobots attracted much attention in biomedical fields because of their precise movement, manipulation, and targeting abilities. However, there is a lack of research on intelligent micro/nanorobots with stimuli-responsive drug delivery mechanisms for cancer therapy. To address this issue, we developed a type of strong covalently bound tri-bead drug delivery microrobots with NIR photothermal response azobenzene molecules attached to their carboxylic surface groups. The tri-bead microrobots are magnetic and showed good cytocompatibility even when their concentration is up to 200 µg/mL. In vitro photothermal experiments demonstrated fast NIR-responsive photothermal property; the microrobots were heated to 50 °C in 4 min, which triggered a significant increase in drug release. Motion control of the microrobots inside a microchannel demonstrated the feasibility of targeted therapy on tumor cells. Finally, experiments with lung cancer cells demonstrated the effectiveness of targeted chemo-photothermal therapy and were validated by cell viability assays. These results indicated that tri-bead microrobots have excellent potential for targeted chemo-photothermal therapy for lung cancer cell treatment.


2019 ◽  
Vol Volume 14 ◽  
pp. 499-517 ◽  
Author(s):  
Hadeer M. Abdelaziz ◽  
Ahmed O. Elzoghby ◽  
Maged W. Helmy ◽  
Magda W. Samaha ◽  
Jia-You Fang ◽  
...  

2009 ◽  
Vol 7 (1) ◽  
pp. 32-40 ◽  
Author(s):  
Jagadeesh Setti Guthi ◽  
Su-Geun Yang ◽  
Gang Huang ◽  
Shunzi Li ◽  
Chalermchai Khemtong ◽  
...  

2015 ◽  
Vol 51 (48) ◽  
pp. 9833-9836 ◽  
Author(s):  
Juan Zhou ◽  
Nanjing Hao ◽  
Thareendra De Zoyza ◽  
Mingdi Yan ◽  
Olof Ramström

Stimuli-responsive, lectin-gated mesoporous glyconanoparticles have been developed as delivery vehicles for controlled drug release into cancer cells.


Author(s):  
Kiran Jyoti ◽  
Ravi Shankar Pandey ◽  
Preeti Kush ◽  
Dinesh Kaushik ◽  
Upendra Kumar Jain ◽  
...  

RSC Advances ◽  
2020 ◽  
Vol 10 (46) ◽  
pp. 27305-27314
Author(s):  
Yolanda Salinas ◽  
Michael Kneidinger ◽  
Cristina Fornaguera ◽  
Salvador Borrós ◽  
Oliver Brüggemann ◽  
...  

Bottle-brush polyphosphazenes as dual, thermosensitive and pH responsive gatekeepers for mesoporous silica nanoparticles, and their use in controlled drug release.


2013 ◽  
Vol 107 ◽  
pp. 235-244 ◽  
Author(s):  
Jitender Madan ◽  
Ravi S. Pandey ◽  
Upendra Kumar Jain ◽  
Om P. Katare ◽  
Ritu Aneja ◽  
...  

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