Stem cells to mass-produce cancer-killing treatment

Stem cell technology can be used to mass-produce cancer-killing immune cells designed to target different kinds of tumour, scientists have shown.

In theory, cancer can be tackled by elements of the body’s own immune defences, especially white blood cells called T-cells.

But in practice, T-cells that target and kill cancer cells while ignoring healthy cells are very rare, and progress towards immune-based cancer treatments has been limited.