Calcium-Overload-Mediated Tumor Therapy by Calcium peroxide (cas 1305-79-9) Nanoparticles

Add time:08/10/2019    Source:sciencedirect.com

SummaryCalcium overload, characterized by an abnormal cytoplasm accumulation of free calcium ions (Ca2+), is a widely recognized cause of damage in numerous cell types and even of cell death. This undesirable destructive process can become a new tool applicable to cancer treatment. Herein, on the basis of the unique biological effect of Ca2+, we demonstrate a highly efficient strategy for tumor therapy by utilizing pH-sensitive sodium-hyaluronate-modified Calcium peroxide (cas 1305-79-9) nanoparticles (SH-CaO2 NPs). These NPs create an artificial calcium overloading stress in tumor cells, which is responsible for cell death. Notably, the killing effect is not limited to tumor types or hypoxic cells, and normal cells are more tolerant of the adverse influence of NPs than tumor cells. The Ca2+ enrichment also increases the likelihood of tumor calcification, which could contribute to in vivo tumor inhibition and facilitate medical imaging to monitor the treatment efficacy.

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