pH/redox dual-stimuli-responsive cross-linked polyphosphazene nanoparticles for multimodal imaging-guided chemo-photodynamic therapy

Nanoscale ◽  
2019 ◽  
Vol 11 (19) ◽  
pp. 9457-9467 ◽  
Author(s):  
Xunan Jing ◽  
Zhe Zhi ◽  
Liming Jin ◽  
Fei Wang ◽  
Youshen Wu ◽  
...  

Multifunctional nanodrugs with the integration of precise diagnostic and effective therapeutic functions have shown great promise in improving the efficacy of cancer therapy.

RSC Advances ◽  
2016 ◽  
Vol 6 (94) ◽  
pp. 91445-91452 ◽  
Author(s):  
Ali Reza Karimi ◽  
Azam Khodadadi ◽  
Mahnaz Hadizadeh

Although zinc phthalocyanines (ZnPcs) have promising applications in photodynamic therapy (PDT), their therapeutic efficacy suffer from their low solubility in the biological environment and their lack of tumor selectivity.


Nanoscale ◽  
2018 ◽  
Vol 10 (30) ◽  
pp. 14554-14562 ◽  
Author(s):  
Yongjuan Li ◽  
Shixian Lv ◽  
Ziyuan Song ◽  
Juanjuan Dang ◽  
Xudong Li ◽  
...  

Stimuli-responsive nanomedicine (NM) with an on-demand drug release property has demonstrated promising utility toward cancer therapy.


Nano Letters ◽  
2018 ◽  
Vol 18 (11) ◽  
pp. 6778-6788 ◽  
Author(s):  
Zhenglin Li ◽  
Ying Hu ◽  
Zhaohua Miao ◽  
Han Xu ◽  
Chunxiao Li ◽  
...  

2021 ◽  
Author(s):  
Lan Yang ◽  
Xiao He ◽  
Zhiying Zeng ◽  
Jiakun Tang ◽  
Dongmei Qi ◽  
...  

Nucleus-targeted therapy holds great promise in cancer treatment, however, a lack of effective nucleus-specific delivery significantly limits its application potential. Here, we report a nucleus-targeted synergistic chemo-photodynamic therapy based on...


2021 ◽  
Vol 9 (1) ◽  
pp. 131-146
Author(s):  
Arif Gulzar ◽  
Fei He ◽  
Aanisa Gulzar ◽  
Ye Kuang ◽  
Fangmei Zhang ◽  
...  

The efficiency of photodynamic therapy (PDT) is severely constrained due to the innate hypoxic environment, besides the elevated level of glutathione (GSH).


2020 ◽  
Vol 8 (24) ◽  
pp. 5267-5279 ◽  
Author(s):  
Cheng Hu ◽  
Weihua Zhuang ◽  
Tao Yu ◽  
Liang Chen ◽  
Zhen Liang ◽  
...  

The strategy of novel multi-stimuli response and synergistic chemo–photodynamic therapy nanoplatform will be helpful for exploiting intelligent cancer therapy.


Author(s):  
Feng Wu ◽  
Fei Qiu ◽  
Siew Anthony Wai-Keong ◽  
Yong Diao

Background: In recent years, the emergence of stimuli-responsive nanoparticles makes drug delivery more efficient. As an intelligent and effective targeted delivery platform, it can reduce the side effects generated during drug transportation while enhancing the treatment efficacy. The stimuli-responsive nanoparticles can respond to different stimuli at corresponding times and locations to deliver and release their drugs and associated therapeutic effects. Objective: This review aims to inform researchers on the latest advances in the application of dual-stimuli responsive nanoparticles in precise drug delivery, with special attention to their design, drug release properties, and therapeutic effects. Syntheses of nanoparticles with simultaneous or sequential responses to two or more stimuli (pH-redox, pH-light, redoxlight, temperature-magnetic, pH-redox-temperature, redox-enzyme-light, etc.) and the applications of such responsivity properties for drugs control and release have become a hot topic of recent research. Methods: A database of relevant information for the production of this review was sourced, screened and analyzed from Pubmed, Web of Science, SciFinder by searching for the following keywords: “dual-stimuli responsive”, “controlled release”, “cancer therapy”, “synergistic treatment”. Results: Notably, the nanoparticles with dual-stimuli responsive function have an excellent control effect on drug delivery and release, playing a crucial part in the treatment of tumors. They can improve the encapsulation and delivery efficiency of hydrophobic chemotherapy drugs, combine chemo-photothermal therapies, apply imaging function in the diagnosis of tumors and even conduct multi-drugs delivery to overcome multi-drugs resistance (MDR). Conclusion: With the development of smart dual-stimuli responsive nanoparticles, cancer treatment methods will become more diverse and effective. All the stimuli-responsive nanoparticles functionalities exhibited their characteristics individually within the single nanosystem.


Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1108
Author(s):  
Manuela Curcio ◽  
Alessandro Paolì ◽  
Giuseppe Cirillo ◽  
Sebastiano Di Pietro ◽  
Martina Forestiero ◽  
...  

Nanoparticles with active-targeting and stimuli-responsive behavior are a promising class of engineered materials able to recognize the site of cancer disease, targeting the drug release and limiting side effects in the healthy organs. In this work, new dual pH/redox-responsive nanoparticles with affinity for folate receptors were prepared by the combination of two amphiphilic dextran (DEX) derivatives. DEXFA conjugate was obtained by covalent coupling of the polysaccharide with folic acid (FA), whereas DEXssPEGCOOH derived from a reductive amination step of DEX was followed by condensation with polyethylene glycol 600. After self-assembling, nanoparticles with a mean size of 50 nm, able to be destabilized in acidic pH and reducing media, were obtained. Doxorubicin was loaded during the self-assembling process, and the release experiments showed the ability of the proposed system to modulate the drug release in response to different pH and redox conditions. Finally, the viability and uptake experiments on healthy (MCF-10A) and metastatic cancer (MDA-MB-231) cells proved the potential applicability of the proposed system as a new drug vector in cancer therapy.


Pharmaceutics ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 71
Author(s):  
Thashini Moodley ◽  
Moganavelli Singh

With increasing incidence and mortality rates, cancer remains one of the most devastating global non-communicable diseases. Restricted dosages and decreased bioavailability, often results in lower therapeutic outcomes, triggering the development of resistance to conventionally used drug/gene therapeutics. The development of novel therapeutic strategies using multimodal nanotechnology to enhance specificity, increase bioavailability and biostability of therapeutics with favorable outcomes is critical. Gated vectors that respond to endogenous or exogenous stimuli, and promote targeted tumor delivery without prematurely cargo loss are ideal. Mesoporous silica nanoparticles (MSNs) are effective delivery systems for a variety of therapeutic agents in cancer therapy. MSNs possess a rigid framework and large surface area that can incorporate supramolecular constructs and varying metal species that allow for stimuli-responsive controlled release functions. Its high interior loading capacity can incorporate combination drug/gene therapeutic agents, conferring increased bioavailability and biostability of the therapeutic cargo. Significant advances in the engineering of MSNs structural and physiochemical characteristics have since seen the development of nanodevices with promising in vivo potential. In this review, current trends of multimodal MSNs being developed and their use in stimuli-responsive passive and active targeting in cancer therapy will be discussed, focusing on light, redox, pH, and temperature stimuli.


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