An efficient delivery of photosensitizers and hypoxic prodrugs for a tumor combination therapy by membrane camouflage nanoparticles

2020 ◽  
Vol 8 (14) ◽  
pp. 2876-2886 ◽  
Author(s):  
Hanjie Wang ◽  
Chaonan Zhang ◽  
Yingying Zhang ◽  
Ran Tian ◽  
Guohui Cheng ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Combination Therapy ◽  
Cancer Treatment ◽  
Invasive Cancer ◽  
Non Invasive ◽  
Efficient Delivery

Photodynamic therapy (PDT) is an oxygen-dependent, non-invasive cancer treatment.

scholarly journals Photodynamic Therapy and Hyperthermia in Combination Treatment—Neglected Forces in the Fight against Cancer

Pharmaceutics ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1147
Author(s):  
Aleksandra Bienia ◽  
Olga Wiecheć-Cudak ◽  
Aleksandra Anna Murzyn ◽  
Martyna Krzykawska-Serda
Keyword(s):  
Photodynamic Therapy ◽  
Combination Therapy ◽  
Cancer Treatment ◽  
Cancer Cells ◽  
Combination Treatment ◽  
Therapeutic Agent ◽  
Diagnostic Methods ◽  
Cancer Therapies ◽  
Treatment Side Effects ◽  
Anti Cancer

Cancer is one of the leading causes of death in humans. Despite the progress in cancer treatment, and an increase in the effectiveness of diagnostic methods, cancer is still highly lethal and very difficult to treat in many cases. Combination therapy, in the context of cancer treatment, seems to be a promising option that may allow minimizing treatment side effects and may have a significant impact on the cure. It may also increase the effectiveness of anti-cancer therapies. Moreover, combination treatment can significantly increase delivery of drugs to cancerous tissues. Photodynamic therapy and hyperthermia seem to be ideal examples that prove the effectiveness of combination therapy. These two kinds of therapy can kill cancer cells through different mechanisms and activate various signaling pathways. Both PDT and hyperthermia play significant roles in the perfusion of a tumor and the network of blood vessels wrapped around it. The main goal of combination therapy is to combine separate mechanisms of action that will make cancer cells more sensitive to a given therapeutic agent. Such an approach in treatment may contribute toward increasing its effectiveness, optimizing the cancer treatment process in the future.

scholarly journals Photodynamic Therapy Using Indocyanine Green Loaded on Super Carbonate Apatite as Minimally Invasive Cancer Treatment

2018 ◽  
Vol 17 (7) ◽  
pp. 1613-1622 ◽  
Author(s):  
Koki Tamai ◽  
Tsunekazu Mizushima ◽  
Xin Wu ◽  
Akira Inoue ◽  
Minori Ota ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Minimally Invasive ◽  
Indocyanine Green ◽  
Cancer Treatment ◽  
Invasive Cancer ◽  
Carbonate Apatite

scholarly journals Nanoparticle Systems for Cancer Phototherapy: An Overview

Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3132
Author(s):  
Thais P. Pivetta ◽  
Caroline E. A. Botteon ◽  
Paulo A. Ribeiro ◽  
Priscyla D. Marcato ◽  
Maria Raposo
Keyword(s):  
Oxidative Stress ◽  
Reactive Oxygen Species ◽  
Photodynamic Therapy ◽  
Cancer Treatment ◽  
Photothermal Therapy ◽  
Mechanisms Of Action ◽  
Inorganic Nanoparticles ◽  
Oxygen Species ◽  
Non Invasive ◽  
The Past

Photodynamic therapy (PDT) and photothermal therapy (PTT) are photo-mediated treatments with different mechanisms of action that can be addressed for cancer treatment. Both phototherapies are highly successful and barely or non-invasive types of treatment that have gained attention in the past few years. The death of cancer cells because of the application of these therapies is caused by the formation of reactive oxygen species, that leads to oxidative stress for the case of photodynamic therapy and the generation of heat for the case of photothermal therapies. The advancement of nanotechnology allowed significant benefit to these therapies using nanoparticles, allowing both tuning of the process and an increase of effectiveness. The encapsulation of drugs, development of the most different organic and inorganic nanoparticles as well as the possibility of surfaces’ functionalization are some strategies used to combine phototherapy and nanotechnology, with the aim of an effective treatment with minimal side effects. This article presents an overview on the use of nanostructures in association with phototherapy, in the view of cancer treatment.

scholarly journals A Supramolecular Photosensitizer System Based on Nano-Cu/ZIF-8 Capped with Water-Soluble Pillar[6]arene and Methylene Blue Host–Guest Complexations

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 3878
Author(s):  
Chenhao Hu ◽  
Yueyuan Yu ◽  
Shuang Chao ◽  
Huidan Zhu ◽  
Yuxin Pei ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Photodynamic Therapy ◽  
Tumor Microenvironment ◽  
Cancer Therapy ◽  
Combination Therapy ◽  
Fenton Reaction ◽  
Water Soluble ◽  
Low Oxygen ◽  
Non Invasive ◽  
Anti Cancer

Photodynamic therapy (PDT) as a safe, non-invasive modality for cancer therapy, in which the low oxygen and high glutathione in the tumor microenvironment reduces therapeutic efficiency. In order to overcome these problems, we prepared a supramolecular photosensitive system of O2-Cu/ZIF-8@ZIF-8@WP6–MB (OCZWM), which was loaded with oxygen to increase the oxygen concentration in the tumor microenvironment, and the Cu2+ in the system reacted with glutathione (GSH) to reduce the GSH concentration to generate Cu+. It is worth noting that the generated Cu+ can produce the Fenton reaction, thus realizing the combination therapy of PDT and chemodynamic therapy (CDT) to achieve the purpose of significantly improving the anti-cancer efficiency.

Optical Properties of Photodynamic Therapy Drugs in Different Environments: The Paradigmatic Case of Temoporfin

2020 ◽  
Author(s):  
busenur Aslanoglu ◽  
Ilya Yakavets ◽  
Vladimir Zorin ◽  
Henri-Pierre Lassalle ◽  
Francesca Ingrosso ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Optical Properties ◽  
Photodynamic Therapy ◽  
Minimally Invasive ◽  
Visible Light ◽  
Cancer Treatment ◽  
Singlet Oxygen ◽  
Tumor Cells ◽  
Molecular Oxygen ◽  
Computational Tools

Computational tools have been used to study the photophysical and photochemical features of photosensitizers in photodynamic therapy (PDT) –a minimally invasive, less aggressive alternative for cancer treatment. PDT is mainly based by the activation of molecular oxygen through the action of a photoexcited sensitizer (photosensitizer). Temoporfin, widely known as mTHPC, is a second-generation photosensitizer, which produces the cytotoxic singlet oxygen when irradiated with visible light and hence destroys tumor cells. However, the bioavailability of the mostly hydrophobic photosensitizer, and hence its incorporation into the cells, is fundamental to achieve the desired effect on malignant tissues by PDT. In this study, we focus on the optical properties of the temoporfin chromophore in different environments –in <i>vacuo</i>, in solution, encapsulated in drug delivery agents, namely cyclodextrin, and interacting with a lipid bilayer.

Natural, Synthetic and their Combinatorial Nanocarriers Based Drug Delivery System in the Treatment Paradigm for Wound Healing Via Dermal Targeting

2020 ◽  
Vol 26 (36) ◽  
pp. 4551-4568
Author(s):  
Mohammad Kashif Iqubal ◽  
Sadaf Saleem ◽  
Ashif Iqubal ◽  
Aiswarya Chaudhuri ◽  
Faheem Hyder Pottoo ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Wound Healing ◽  
Photodynamic Therapy ◽  
Growth Factors ◽  
Combination Therapy ◽  
Healing Process ◽  
Wound Healing Process ◽  
Wound Site ◽  
Synthetic Drugs ◽  
Treatment Paradigm

A wound refers to the epithelial loss, accompanied by loss of muscle fibers collagen, nerves and bone instigated by surgery, trauma, frictions or by heat. Process of wound healing is a compounded activity of recovering the functional integrity of the damaged tissues. This process is mediated by various cytokines and growth factors usually liberated at the wound site. A plethora of herbal and synthetic drugs, as well as photodynamic therapy, is available to facilitate the process of wound healing. Generally, the systems used for the management of wounds tend to act through covering the ruptured site, reduce pain, inflammation, and prevent the invasion and growth of microorganisms. The available systems are, though, enough to meet these requirements, but the involvement of nanotechnology can ameliorate the performance of these protective coverings. In recent years, nano-based formulations have gained immense popularity among researchers for the wound healing process due to the enhanced benefits they offer over the conventional preparations. Hereupon, this review aims to cover the entire roadmap of wound healing, beginning from the molecular factors involved in the process, the various synthetic and herbal agents, and combination therapy available for the treatment and the current nano-based systems available for delivery through the topical route for wound healing.

Design of Novel Photosensitizers and Controlled Singlet Oxygen Generation for Photodynamic Therapy

2021 ◽  
Author(s):  
Esra Tanrıverdi Eçik ◽  
Onur BULUT ◽  
Hasan Hüseyin Kazan ◽  
Elif Şenkuytu ◽  
Bunyemin Cosut
Keyword(s):  
Photodynamic Therapy ◽  
Cancer Treatment ◽  
Singlet Oxygen ◽  
Side Effect ◽  
Side Effect Profile ◽  
High Ability ◽  
Lower Side ◽  
Oxygen Generation ◽  
Singlet Oxygen Generation ◽  
Promising Strategy

Photodynamic therapy (PDT) is a promising strategy in cancer treatment with its relatively lower side effect profile. Undoubtedly, the key component of PDT is the photosensitizers with a high ability...

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