Scientists Discover What Can Trigger Cancer Cells to Self-Destruct
Summary
Scientists found that when cancer cells are squeezed tightly for a long time, they can trigger a process that leads to their self-destruction. This discovery helps explain how physical stress inside tumors may stop some cancer cells from spreading.Key Facts
- Researchers from several Chinese universities studied how cancer cells react to being confined in tight spaces.
- They used 3D models to simulate the physical pressure cancer cells face while moving through tissues.
- Cancer cells enter a fast-moving state called mesenchymal-to-amoeboid transition (MAT) to squeeze through narrow spaces.
- Prolonged confinement caused the cancer cells to stop moving and activate a built-in death program triggered by a protein called MLKL.
- Before dying, cancer cells lose their shape and ability to invade other tissues.
- Cancer cells with low MLKL can resist death and become more aggressive, which may make tumors harder to treat.
- This mechanism was seen in multiple types of cancer cells, suggesting it could be common.
- MLKL could potentially be used as a marker to predict how likely a tumor is to grow and spread.
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