MOF Hydrogel With Structurally Dynamic Properties as Stimuli-Responsive Localized Drug Delivery System for Cancer Therapy

2021 ◽  
Author(s):  
Yuqin Zeng ◽  
Can Zhang ◽  
Lu Sun ◽  
Yuanyuan Han ◽  
Xiaoxiao He ◽  
...  
2015 ◽  
Vol 6 (11) ◽  
pp. 2098-2107 ◽  
Author(s):  
Yang Kang ◽  
Xiao-Mei Zhang ◽  
Sheng Zhang ◽  
Li-Sheng Ding ◽  
Bang-Jing Li

pH stimuli-responsive controlled selective release of drugs at the endosomal compartments of the PR-g-DOX supramolecular micelles.


2019 ◽  
Vol 25 (24) ◽  
pp. 2609-2625 ◽  
Author(s):  
Kandasamy Saravanakumar ◽  
Xiaowen Hu ◽  
Davoodbasha M. Ali ◽  
Myeong-Hyeon Wang

The conventional Drug Delivery System (DDS) has limitations such as leakage of the drug, toxicity to normal cells and loss of drug efficiency, while the stimuli-responsive DDS is non-toxic to cells, avoiding the leakage and degradation of the drug because of its targeted drug delivery to the pathological site. Thus nanomaterial chemistry enables - the development of smart stimuli-responsive DDS over the conventional DDS. Stimuliresponsive DDS ensures spatial or temporal, on-demand drug delivery to the targeted cancer cells. The DDS is engineered by using the organic (synthetic polymers, liposomes, peptides, aptamer, micelles, dendrimers) and inorganic (zinc oxide, gold, magnetic, quantum dots, metal oxides) materials. Principally, these nanocarriers release the drug at the targeted cells in response to external and internal stimuli such as temperature, light, ultrasound and magnetic field, pH value, redox potential (glutathione), and enzyme. The multi-stimuli responsive DDS is more promising than the single stimuli-responsive DDS in cancer therapy, and it extensively increases drug release and accumulation in the targeted cancer cells, resulting in better tumor cell ablation. In this regard, a handful of multi-stimuli responsive DDS is in clinical trials for further approval. A comprehensive review is crucial for addressing the existing knowledge about multi-stimuli responsive DDS, and hence, we summarized the emerging strategies in tailored ligand functionalized stimuli-responsive nanocarriers as the DDS for cancer therapies.


2016 ◽  
Vol 4 (21) ◽  
pp. 3760-3769 ◽  
Author(s):  
Ning Li ◽  
Chunhua Guo ◽  
Zhenyu Duan ◽  
Lingzhu Yu ◽  
Kui Luo ◽  
...  

A Janus mPEGylated dendron–PVGLIG–DOX conjugate self-assembled into nanoparticles was employed as a matrix metalloproteinase-2/9 enzyme-sensitive and safe nanoscale drug delivery system for breast cancer therapy.


2018 ◽  
Vol 115 (3) ◽  
pp. 501-506 ◽  
Author(s):  
Meng Qiu ◽  
Dou Wang ◽  
Weiyuan Liang ◽  
Liping Liu ◽  
Yin Zhang ◽  
...  

A biodegradable drug delivery system (DDS) is one the most promising therapeutic strategies for cancer therapy. Here, we propose a unique concept of light activation of black phosphorus (BP) at hydrogel nanostructures for cancer therapy. A photosensitizer converts light into heat that softens and melts drug-loaded hydrogel-based nanostructures. Drug release rates can be accurately controlled by light intensity, exposure duration, BP concentration, and hydrogel composition. Owing to sufficiently deep penetration of near-infrared (NIR) light through tissues, our BP-based system shows high therapeutic efficacy for treatment of s.c. cancers. Importantly, our drug delivery system is completely harmless and degradable in vivo. Together, our work proposes a unique concept for precision cancer therapy by external light excitation to release cancer drugs. If these findings are successfully translated into the clinic, millions of patients with cancer will benefit from our work.


Polymers ◽  
2021 ◽  
Vol 13 (20) ◽  
pp. 3580
Author(s):  
Chuda Chittasupho ◽  
Jakrapong Angklomklew ◽  
Thanu Thongnopkoon ◽  
Wongwit Senavongse ◽  
Pensak Jantrawut ◽  
...  

A hydrogel scaffold is a localized drug delivery system that can maintain the therapeutic level of drug concentration at the tumor site. In this study, the biopolymer hydrogel scaffold encapsulating doxorubicin was fabricated from gelatin, sodium carboxymethyl cellulose, and gelatin/sodium carboxymethyl cellulose mixture using a lyophilization technique. The effects of a crosslinker on scaffold morphology and pore size were determined using scanning electron microscopy. The encapsulation efficiency and the release profile of doxorubicin from the hydrogel scaffolds were determined using UV-Vis spectrophotometry. The anti-proliferative effect of the scaffolds against the lung cancer cell line was investigated using an MTT assay. The results showed that scaffolds made from different types of natural polymer had different pore configurations and pore sizes. All scaffolds had high encapsulation efficiency and drug-controlled release profiles. The viability and proliferation of A549 cells, treated with gelatin, gelatin/SCMC, and SCMC scaffolds containing doxorubicin significantly decreased compared with control. These hydrogel scaffolds might provide a promising approach for developing a superior localized drug delivery system to kill lung cancer cells.


2016 ◽  
Vol 4 (13) ◽  
pp. 2253-2263 ◽  
Author(s):  
Mingxian Liu ◽  
Yanzhou Chang ◽  
Jing Yang ◽  
Yuanyuan You ◽  
Rui He ◽  
...  

A new HNTs-based drug delivery system to improve the bioavailability of curcumin for cancer therapy is proposed.


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