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3 months ago
We may soon have a new type of chemotherapy. Here's what Mitoflavoscins is all ...

Cancer research may have just got a breakthrough: Scientists have found a new potential therapeutic agent, diphenyleneiodonium chloride (DPI), which effectively switches off cancer stem cells, preventing their proliferation. The study’s lead author Professor Michael Lisanti said, “It’s extraordinary; the cells just sit there as if in a state of suspended animation.” Researchers are calling the discovery the start of a new type of chemotherapy, and they even have a name for it ‘Mitoflavoscins’.

The discovery is significant because the drug halts the propagation of cancer stem cells without causing the toxic side-effects normally associated with more conventional chemotherapy. In their findings, the scientists observed that addition of DPI to a mixed population of cells eliminated a tumour initiating cancer stem cells. However, the drug was non-toxic for “bulk” cancer cells, which are not thought to be cancer-forming.

The study described how DPI targets more than 90 protein enzymes which feed mitochondria and help generate the cell’s energy. “Our observation is that DPI is selectively attacking the cancer stem cells, by effectively creating a vitamin deficiency. In other words, by turning off energy production in cancer stem cells, we are creating a process of hibernation. The beauty of this is that DPI makes the cancer stem cells metabolically-inflexible, so they will be highly susceptible to many other drugs,” noted Lisanti.

Professor Federica Sotgia, co-author of the study, concluded by saying, “In terms of chemotherapies for cancer, we clearly need something better that what we have at present, and this is hopefully the beginning of an alternative approach to halting cancer stem cells.”

The study was published in the journal Aging.

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