scholarly journals Metal-Based Nanomaterials Incorporate with Ultrasound as Acceptable Approach towards Cancer Therapy

2021 ◽  
Vol 2 (11) ◽  
pp. 1101-1110
Author(s):  
Xiaoxiao He ◽  
Shiyue Chen ◽  
Xiang Mao

Among current biological researches, there have a plenty of works related cancer therapy issues by using functional or pure-phased composites in non-invasive strategies. Especially in fabricating anticancer candidates, functional composites are divided into different sorts with different characteristics. Additionally, nanotechnology provides various approaches in utilizing composites’ functionality for cancer diagnostics and therapeutics. Compared with previous Photodynamic Therapy (PDT), Photo-Thermal Therapy (PTT), chemotherapy and radiotherapy, ultrasound is used to activate sonosensitizer to produce cytotoxic Reactive Oxygen Species (ROS) toward target cancer cells. In recent years, the form of Sonodynamic Therapy (SDT) has been making much effort to develop highly efficient metal based Nanomaterials (NMs) as sonosensitizers, which can efficiently generate ROS and has the advantages of deeper tissue penetration. However, the traditional sonosensitizers, such as porphyrins, hypericin, and curcumins suffer from complex synthesis, poor water solubility, and low tumor targeting efficacy. For contrasting this limitation, the metal based inorganic NMs show biocompatibility, controllable physicochemical properties, and ease of achieving multifunctional properties, which greatly expanded their application in SDT. In this review, we systematically summarize the metal based inorganic NMs as carrier of molecular sonosensitizers, and produce ROS under ultrasound. Moreover, the prospects of advanced metal based further materials application are also discussed.

2021 ◽  
Author(s):  
LIhong Sun ◽  
Ping Wang ◽  
Jinxia Zhang ◽  
Yang Sun ◽  
Suhui Sun ◽  
...  

As an alternative to photodynamic therapy (PDT), ultrasound-triggered tumor sonodynamic therapy (SDT) has garnered significant attention, owing to its high tissue penetration, few side effects, and reliable patient compliance. A...


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Skaidre Jankovskaja ◽  
Johan Engblom ◽  
Melinda Rezeli ◽  
György Marko-Varga ◽  
Tautgirdas Ruzgas ◽  
...  

AbstractThe tryptophan to kynurenine ratio (Trp/Kyn) has been proposed as a cancer biomarker. Non-invasive topical sampling of Trp/Kyn can therefore serve as a promising concept for skin cancer diagnostics. By performing in vitro pig skin permeability studies, we conclude that non-invasive topical sampling of Trp and Kyn is feasible. We explore the influence of different experimental conditions, which are relevant for the clinical in vivo setting, such as pH variations, sampling time, and microbial degradation of Trp and Kyn. The permeabilities of Trp and Kyn are overall similar. However, the permeated Trp/Kyn ratio is generally higher than unity due to endogenous Trp, which should be taken into account to obtain a non-biased Trp/Kyn ratio accurately reflecting systemic concentrations. Additionally, prolonged sampling time is associated with bacterial Trp and Kyn degradation and should be considered in a clinical setting. Finally, the experimental results are supported by the four permeation pathways model, predicting that the hydrophilic Trp and Kyn molecules mainly permeate through lipid defects (i.e., the porous pathway). However, the hydrophobic indole ring of Trp is suggested to result in a small but noticeable relative increase of Trp diffusion via pathways across the SC lipid lamellae, while the shunt pathway is proposed to slightly favor permeation of Kyn relative to Trp.


Nanoscale ◽  
2021 ◽  
Author(s):  
Carolina del Real Mata ◽  
Roozbeh Siavash Moakhar ◽  
Sayed Iman Isaac Hosseini ◽  
Mahsa Jalali ◽  
Sara Mahshid

Non-invasive liquid biopsies offer hope for a rapid, risk-free, real-time glimpse into cancer diagnostics. Recently, hydrogen peroxide (H2O2) is identified as a cancer biomarker due to continued release from cancer...


2021 ◽  
Vol 17 (10) ◽  
pp. 2003-2013
Author(s):  
Jingxin Fu ◽  
Yian Wang ◽  
Haowen Li ◽  
Likang Lu ◽  
Hui Ao ◽  
...  

Background: The use of chemotherapeutic drugs is restricted in the tumor-therapy because of the severely toxic and side effects among most important factors. The active herbal extracts are always used as a high dose while in the tumortherapy to achieve good anti-tumor effects. Hydrous icaritin has a high activity while there are few existing dosage forms as a result of low solubility in water and poor bioavailability. Results: The prepared hydrous icaritin nanorods (DP-HICT NRs) using mPEG2000-DSPE as a stabilizer, presented a narrow distribution of particle size with of 217 nm and a properly high drug-loading content of approximately 65.3±1.5%. A low dose of hydrous icaritin nano-formulation shows remarkable efficacy in cancer therapy (tumor inhibition rate: 61.36±10.80%) compared with the same dose of Paclitaxel injection (tumor inhibition rate: 66.80±4.43%), which approved as medicaments. Not only that, DP-HICT NRs can escape the clearance of the immune system and enhance targeting ability to the tumor site with only one excipient and such a low dose. Conclusions: This kind of nanoparticles contain a low dose of HICT used mPEG2000-DSPE as a stabilizer, while can achieve good tumor targeting as some active targeting agents and an anti-tumor effect as the PTX injection. There are broad prospects in drug safety, anti-tumor efficacy and even prognosis.


2021 ◽  
Vol 22 (22) ◽  
pp. 12549
Author(s):  
Nkune Williams Nkune ◽  
Heidi Abrahamse

Metastatic melanoma (MM) is a skin malignancy arising from melanocytes, the incidence of which has been rising in recent years. It poses therapeutic challenges due to its resistance to chemotherapeutic drugs and radiation therapy. Photodynamic therapy (PDT) is an alternative non-invasive modality that requires a photosensitizer (PS), specific wavelength of light, and molecular oxygen. Several studies using conventional PSs have highlighted the need for improved PSs for PDT applications to achieve desired therapeutic outcomes. The incorporation of nanoparticles (NPs) and targeting moieties in PDT have appeared as a promising strategy to circumvent various drawbacks associated with non-specific toxicity, poor water solubility, and low bioavailability of the PSs at targeted tissues. Currently, most studies investigating new developments rely on two-dimensional (2-D) monocultures, which fail to accurately mimic tissue complexity. Therefore, three-dimensional (3-D) cell cultures are ideal models to resemble tumor tissue in terms of architectural and functional properties. This review examines various PS drugs, as well as passive and active targeted PS nanoparticle-mediated platforms for PDT treatment of MM on 2-D and 3-D models. The overall findings of this review concluded that very few PDT studies have been conducted within 3-D models using active PS nanoparticle-mediated platforms, and so require further investigation.


Nanoscale ◽  
2021 ◽  
Author(s):  
Cheng Lv ◽  
Jian Ao ◽  
Ji Wang ◽  
Man Tang ◽  
An-An Liu ◽  
...  

Targeted cancer therapy has aroused broad interests of researchers due to its accuracy in specific tumor targeting and few side effects on normal cells. In the last decades, oncolytic viral...


2019 ◽  
Vol 289 ◽  
pp. 42-47 ◽  
Author(s):  
Svetlana Solovieva ◽  
Mikhail Karnaukh ◽  
Vitaly Panchuk ◽  
Evgeny Andreev ◽  
Liudmila Kartsova ◽  
...  

RSC Advances ◽  
2015 ◽  
Vol 5 (37) ◽  
pp. 29008-29016 ◽  
Author(s):  
Kislay Roy ◽  
Rupinder K. Kanwar ◽  
Chun Hei Antonio Cheung ◽  
Cassandra Lee Fleming ◽  
Rakesh N. Veedu ◽  
...  

EpCAM and nucleolin translocate into the cytoplasm and nucleus that facilitates enhanced uptake of nanocarrier to specifically target cancer cells.


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