A self-assembled carrier-free nanosonosensitizer for photoacoustic imaging-guided synergistic chemo–sonodynamic cancer therapy

Nanoscale ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 5587-5600 ◽  
Author(s):  
Caihong Dong ◽  
Qvzi Jiang ◽  
Xiaoqin Qian ◽  
Wencheng Wu ◽  
Wenping Wang ◽  
...  
Keyword(s):  
Cancer Therapy ◽  
Drug Release ◽  
Therapeutic Efficacy ◽  
Photoacoustic Imaging ◽  
Sonodynamic Therapy ◽  
Carrier Free ◽  
Self Assembled

Nanosonosensitizer, Ce6-PTX@IR783, successfully realized the photoacoustic imaging-guided synergistic chemo–sonodynamic therapy with ultrasound-trigged controllable drug release and acquired high therapeutic efficacy for cancer.

Binary Dimeric Prodrug Nanoparticles for Self-Boosted Drug Release and Synergistic Chemo-Photodynamic Therapy

2022 ◽  
Author(s):  
Youwei Zhang ◽  
Qing Pei ◽  
Ying Yue ◽  
Zhigang Xie
Keyword(s):  
Photodynamic Therapy ◽  
Cancer Therapy ◽  
Drug Release ◽  
Clinical Performance ◽  
Therapeutic Efficiency ◽  
Normal Tissues ◽  
Carrier Free

Chemotherapy is the major strategy for cancer therapy, but its limited therapeutic efficiency and serious toxicity to normal tissues greatly restrict its clinical performance. Herein, we develop carrier-free self-activated prodrug...

scholarly journals Engineered extracellular vesicle-based sonotheranostics for dual stimuli-sensitive drug release and photoacoustic imaging-guided chemo-sonodynamic cancer therapy

Theranostics ◽  
2022 ◽  
Vol 12 (3) ◽  
pp. 1247-1266
Author(s):  
Thuy Giang Nguyen Cao ◽  
Ji Hee Kang ◽  
Wangyu Kim ◽  
Junha Lim ◽  
Su Jin Kang ◽  
...  
Keyword(s):  
Cancer Therapy ◽  
Drug Release ◽  
Photoacoustic Imaging ◽  
Extracellular Vesicle ◽  
Stimuli Sensitive

scholarly journals Multifunctional Cargo-Free Nanomedicine for Cancer Therapy

2018 ◽  
Vol 19 (10) ◽  
pp. 2963 ◽  
Author(s):  
Ying Wang ◽  
Pengfei Yang ◽  
Xinrui Zhao ◽  
Di Gao ◽  
Na Sun ◽  
...  
Keyword(s):  
Clinical Trials ◽  
Cancer Therapy ◽  
Drug Release ◽  
Combination Therapy ◽  
Cancer Treatment ◽  
Clinical Applications ◽  
Self Monitoring ◽  
Promising Strategy ◽  
Carrier Free ◽  
Future Challenges

Nanocarriers encapsulating multiple chemotherapeutics are a promising strategy to achieve combinational chemotherapy for cancer therapy; however, they generally use exotic new carriers without therapeutic effect, which usually suffer from carrier-related toxicity issues, as well as having to pass extensive clinical trials to be drug excipients before any clinical applications. Cargo-free nanomedicines, which are fabricated by drugs themselves without new excipients and possess nanoscale characteristics to realize favorable pharmacokinetics and intracellular delivery, have been rapidly developed and drawn much attention to cancer treatment. Herein, we discuss recent advances of cargo-free nanomedicines for cancer treatment. After a brief introduction to the major types of carrier-free nanomedicine, some representative applications of these cargo-free nanomedicines are discussed, including combination therapy, immunotherapy, as well as self-monitoring of drug release. More importantly, this review draws a brief conclusion and discusses the future challenges of cargo-free nanomedicines from our perspective.

Red and NIR Light-Responsive Polymeric Nanocarriers for On-Demand Drug Delivery

2020 ◽  
Vol 27 (23) ◽  
pp. 3877-3887
Author(s):  
Xinyu He ◽  
Xianzhu Yang ◽  
Dongdong Li ◽  
Ziyang Cao
Keyword(s):  
Drug Delivery ◽  
Cancer Therapy ◽  
Drug Release ◽  
Therapeutic Efficacy ◽  
Drug Uptake ◽  
Design Strategies ◽  
Polymeric Nanocarriers ◽  
Normal Tissues ◽  
On Demand ◽  
Nir Light

Red and NIR light-responsive polymeric nanocarriers capable of on-demand drug delivery have gained tremendous attention for their great potential in cancer therapy. Various strategies have been applied to fabricate such nanocarriers, and they have demonstrated significant therapeutic efficacy and minimal toxicity to normal tissues. Here, we will review the current developments in various red and NIR light-responsive polymeric nanocarriers with respect to their use in on-demand drug delivery, including facilitation of drug internalization and boosting of drug release at targeted sites. We summarize their components and design strategies, and highlight the mechanisms by which the photoactivatable variations enhance drug uptake and drug release. We attempt to provide new insights into the fabrication of red and NIR light-responsive polymeric nanocarriers for on-demand drug delivery.

A Brief Introduction to Porphyrin Compounds Used in Tumor Imaging and Therapies

2020 ◽  
Vol 20 ◽  
Author(s):  
Lili Pan ◽  
Yu Ma ◽  
Xiaoai Wu ◽  
Huawei Cai ◽  
Feng Qin ◽  
...  
Keyword(s):  
Tumor Imaging ◽  
Photoacoustic Imaging ◽  
Therapeutic Agents ◽  
Biochemical Properties ◽  
Therapeutic Effects ◽  
Future Prospects ◽  
Animal Tissues ◽  
Sonodynamic Therapy ◽  
Porphyrin Derivatives ◽  
Porphyrin Analogues

Abstract:: As a group of heterocyclic macrocycle organic natural compounds occurring universally in animal tissues and plants, porphyrins are composed of four modified pyrrole subunits. Porphyrin analogues/derivatives possess multiple biochemical properties because of their unique structures and have been extensively investigated in cancer treatment. Studies have shown that porphyrins and their derivatives have the ability to locate in tumor cells in a variety of human cancers, and these compounds not only exhibit potent therapeutic effects as photodynamic agents but also show promising properties in medicinal imaging, such as MRI, photoacoustic imaging, fluorescence imaging and PET/SPECT imaging. This paper reviews the recent reports of porphyrin derivatives as therapeutic agents used in tumor therapies, such as sonodynamic therapy, photodynamic therapy and radiotherapy, as well as imaging agents for multimodality tumor imaging. The limitations of porphyrin-based compounds in tumor treatments and future prospects are also summarized.

Nanostructured Ketorolac-Tromethamine/MCF: Synthesis, Characterization and Application in Drug Release System

2018 ◽  
Vol 14 (5) ◽  
pp. 432-439 ◽  
Author(s):  
Juliana M. Juarez ◽  
Jorgelina Cussa ◽  
Marcos B. Gomez Costa ◽  
Oscar A. Anunziata
Keyword(s):  
Drug Delivery ◽  
Drug Release ◽  
Therapeutic Efficacy ◽  
Drug Delivery Systems ◽  
Controlled Drug Release ◽  
Delivery Systems ◽  
The Body ◽  
Fickian Diffusion ◽  
Ketorolac Tromethamine

Background: Controlled drug delivery systems can maintain the concentration of drugs in the exact sites of the body within the optimum range and below the toxicity threshold, improving therapeutic efficacy and reducing toxicity. Mesostructured Cellular Foam (MCF) material is a new promising host for drug delivery systems due to high biocompatibility, in vivo biodegradability and low toxicity. Methods: Ketorolac-Tromethamine/MCF composite was synthesized. The material synthesis and loading of ketorolac-tromethamine into MCF pores were successful as shown by XRD, FTIR, TGA, TEM and textural analyses. Results: We obtained promising results for controlled drug release using the novel MCF material. The application of these materials in KETO release is innovative, achieving an initial high release rate and then maintaining a constant rate at high times. This allows keeping drug concentration within the range of therapeutic efficacy, being highly applicable for the treatment of diseases that need a rapid response. The release of KETO/MCF was compared with other containers of KETO (KETO/SBA-15) and commercial tablets. Conclusion: The best model to fit experimental data was Ritger-Peppas equation. Other models used in this work could not properly explain the controlled drug release of this material. The predominant release of KETO from MCF was non-Fickian diffusion.

The Smart Dual-Stimuli Responsive Nanoparticles for Controlled AntiTumor Drug Release and Cancer Therapy

2020 ◽  
Vol 20 ◽  
Author(s):  
Feng Wu ◽  
Fei Qiu ◽  
Siew Anthony Wai-Keong ◽  
Yong Diao
Keyword(s):  
Drug Delivery ◽  
Cancer Therapy ◽  
Drug Release ◽  
Targeted Delivery ◽  
Relevant Information ◽  
Therapeutic Effects ◽  
Stimuli Responsive ◽  
Control Effect ◽  
Chemotherapy Drugs ◽  
Excellent Control

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.

Computational studies on self-assembled paclitaxel structures: Templates for hierarchical block copolymer assemblies and sustained drug release

Biomaterials ◽  
2009 ◽  
Vol 30 (33) ◽  
pp. 6556-6563 ◽  
Author(s):  
Xin D. Guo ◽  
Jeremy P.K. Tan ◽  
Sung H. Kim ◽  
Li J. Zhang ◽  
Ying Zhang ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Drug Release ◽  
Computational Studies ◽  
Sustained Drug Release ◽  
Self Assembled

scholarly journals Combining Dextran Conjugates with Stimuli-Responsive and Folate-Targeting Activity: A New Class of Multifunctional Nanoparticles for Cancer Therapy

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1108
Author(s):  
Manuela Curcio ◽  
Alessandro Paolì ◽  
Giuseppe Cirillo ◽  
Sebastiano Di Pietro ◽  
Martina Forestiero ◽  
...  
Keyword(s):  
Cancer Therapy ◽  
Drug Release ◽  
Metastatic Cancer ◽  
Stimuli Responsive ◽  
Cancer Disease ◽  
New Class ◽  
Self Assembling ◽  
Redox Responsive ◽  
Potential Applicability ◽  
Mean Size

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.

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