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Metal Nanoparticles for Photodynamic Therapy: A Potential Treatment for Breast Cancer
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Metal Nanoparticles for Photodynamic Therapy: A Potential Treatment for Breast Cancer
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Journal Article
Metal Nanoparticles for Photodynamic Therapy: A Potential Treatment for Breast Cancer
2021
Overview
Breast cancer (BC) is the most common malignant tumor in women worldwide, which seriously threatens women’s physical and mental health. In recent years, photodynamic therapy (PDT) has shown significant advantages in cancer treatment. PDT involves activating photosensitizers with appropriate wavelengths of light, producing transient levels of reactive oxygen species (ROS). Compared with free photosensitizers, the use of nanoparticles in PDT shows great advantages in terms of solubility, early degradation, and biodistribution, as well as more effective intercellular penetration and targeted cancer cell uptake. Under the current circumstances, researchers have made promising efforts to develop nanocarrier photosensitizers. Reasonably designed photosensitizer (PS) nanoparticles can be achieved through non-covalent (self-aggregation, interfacial deposition, interfacial polymerization or core-shell embedding and physical adsorption) or covalent (chemical immobilization or coupling) processes and accumulate in certain tumors through passive and/or active targeting. These PS loading methods provide chemical and physical stability to the PS payload. Among nanoparticles, metal nanoparticles have the advantages of high stability, adjustable size, optical properties, and easy surface functionalization, making them more biocompatible in biological applications. In this review, we summarize the current development and application status of photodynamic therapy for breast cancer, especially the latest developments in the application of metal nanocarriers in breast cancer PDT, and highlight some of the recent synergistic therapies, hopefully providing an accessible overview of the current knowledge that may act as a basis for new ideas or systematic evaluations of already promising results.
Publisher
MDPI AG,MDPI
Subject
/ Antineoplastic Agents - chemistry
/ Antineoplastic Agents - pharmacology
/ Breast Neoplasms - drug therapy
/ Breast Neoplasms - metabolism
/ Female
/ Humans
/ Light
/ Metal Nanoparticles - chemistry
/ Photosensitizing Agents - chemistry
/ Photosensitizing Agents - pharmacology
/ Reactive Oxygen Species - metabolism
/ Review
/ Tumors
