Blocking Calcium Transfer May Selectively Kill Cancer Cells


A new study shows that blocking the transfer of calcium ions (Ca2+) into mitochondria is toxic to cancer cells and impairs growth of tumors in mice, while sparing normal cells.

All cells use calcium ions as signaling agents to regulate metabolism and other cellular functions. Blocking the flow of calcium into mitochondria, which are the chief producers of energy-rich ATP molecules in cells, created an energy “crisis” from which normal cells could recover but cancer cells could not, the study showed.

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