Health1 min read

Scientists trick cancer cells into making the drugs that kill them

By · Published by Everything Blog

In short

The experimental technique uses metal-containing palladacycle compounds that react with carbon monoxide inside tumors to assemble an anticancer molecule called phenanthridinone. To prevent cellular substances like glutathione from deactivating the palladium catalyst, the team encapsulated the complex within albumin to allow safe transit through the bloodstream. During early laboratory assessments, researchers tested this system for 48 hours across noncancerous cells as well as cultured human breast, lung, liver, and cervical cancer cells.

Key points

  • The treatment leverages the naturally elevated carbon monoxide levels in tumors to spare…: The treatment leverages the naturally elevated carbon monoxide levels in tumors to spare healthy tissues from toxic chemical exposure.
  • Laboratory tests confirmed the therapeutic complex was evaluated across cultured human lu…: Laboratory tests confirmed the therapeutic complex was evaluated across cultured human lung, liver, breast, and cervical cancer cell lines.
  • Developing localized drug synthesis remains an early-stage strategy aimed at significantl…: Developing localized drug synthesis remains an early-stage strategy aimed at significantly reducing the debilitating side effects of chemotherapy.

Sources checked by our analysis pipeline: 1

- Date:

- November 3, 2026

- Source:

- RIKEN

- Summary:

- Scientists have developed a promising new cancer-fighting strategy that uses carbon monoxide naturally produced by tumor cells to manufacture powerful drugs inside the cancer cells themselves. Early laboratory experiments suggest the technique could selectively attack cancer while sparing healthy cells, potentially paving the way for safer chemotherapy alternatives.

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Researchers in Japan have developed an innovative way to turn a chemical produced by cancer cells into a weapon against them. Instead of delivering toxic drugs throughout the body, their experimental approach uses carbon monoxide released by cancer cells to manufacture anticancer compounds directly inside the cells themselves.

The research, led by Katsunori Tanaka at the RIKEN Pioneering Research Institute (PRI) in Japan, was published in Nature Communications. In laboratory experiments, the team demonstrated that a specially designed compound could trigger drug production inside cancer cells without generating the same toxic substances in healthy cells. Although the technique is still at an early stage, it could eventually provide a way to attack tumors while reducing the harmful…

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