Scientists found that aspirin blocks TXA2, freeing T cells to fight cancer. This discovery could help prevent metastasis, but risks remain.

Scientists have discovered that aspirin may prevent cancer metastasis by reducing TXA2 levels, which suppress T cells. Scientists have identified the mechanism by which aspirin may help reduce the spread of certain cancers by activating the immune system,

New research in mice may explain why aspirin seems to lower the risk of people's cancers spreading out of control.