Present and future of metal nanoparticles in tumor ablation therapy

作者：Wenjing Lou, Liting Xie, Lei Xu, Min Xu, Fan Xu, Qiyu Zhao, Tianan Jiang · 发表于：Nanoscale · 年份：2023 · DOI：10.1039/d3nr04362b · 被引用次数：31 · 研究领域：Nanoparticle-Based Drug Delivery、Nanoplatforms for cancer theranostics、Gold and Silver Nanoparticles Synthesis and Applications

Cancer is an important factor affecting the quality of human life as well as causing death. Tumor ablation therapy is a minimally invasive local treatment modality with unique advantages in treating tumors that are difficult to remove surgically. However, due to its physical and chemical characteristics and the limitation of equipment technology, ablation therapy cannot completely kill all tumor tissues and cells at one time; moreover, it inevitably damages some normal tissues in the surrounding area during the ablation process. Therefore, this technology cannot be the first-line treatment for tumors at present. Metal nanoparticles themselves have good thermal and electrical conductivity and unique optical and magnetic properties. The combination of metal nanoparticles with tumor ablation technology, on the one hand, can enhance the killing and inhibiting effect of ablation technology on tumors by expanding the ablation range; on the other hand, the ablation technology changes the physicochemical microenvironment such as temperature, electric field, optics, oxygen content and pH in tumor tissues. It helps to stimulate the degree of local drug release of nanoparticles and increase the local content of anti-tumor drugs, thus forming a synergistic therapeutic effect with tumor ablation. Recent studies have found that some specific ablation methods will stimulate the body's immune response while physically killing tumor tissues, generating a large number of immune cells to cause ...