Main Approaches to Enhance Radiosensitization in Cancer Cells by Nanoparticles: A Systematic Review
Abstract
In recent years, high atomic number nanoparticles (NPs) have emerged as promising radioenhancer agents for cancer radiation therapy due to their unique properties.Multi-disciplinary studies have demonstrated the potential of NPs-based radio-sensitizers to improve cancer therapy and tumor control at cellular and molecular levels.However, studies have shown that the dose enhancement effect of the NPs depends on the beam energy, NPs type, NPs size, NPs concentration, cell lines, and NPs delivery system.It has been believed that radiation dose enhancement of NPs is due to the three main mechanisms, but the results of some simulation studies failed to comply well with the experimental findings.Thus, this study aimed to quantitatively evaluate the physical, chemical, and biological factors of the NPs.An organized search of PubMed/Medline, Embase, ProQuest, Scopus, Cochrane and Google Scholar was performed.In total, 77 articles were thoroughly reviewed and analyzed.The studies investigated 44 different cell lines through 70 in-vitro and 4 in-vivo studies.A total of 32 different types of single or core-shell NPs in different sizes and concentrations have been used in the studies.
How strong is the evidence?
Evidence Hub reads this as a systematic review. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid.
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