Researchers at Cardiff University have discovered a new type of killer T-cell that offers hope of a “one-size-fits-all” cancer therapy.

T-cell therapies for cancer – where immune cells are removed, modified and returned to the patient’s blood to seek and destroy cancer cells – are the latest paradigm in cancer treatments.

The most widely-used therapy, known as CAR-T, is personalised to each patient but targets only a few types of cancers and has not been successful for solid tumours, which make up the vast majority of cancers.

Cardiff researchers have now discovered T-cells equipped with a new type of T-cell receptor (TCR) which recognises and kills most human cancer types, while ignoring healthy cells.

This TCR recognises a molecule present on the surface of a wide range of cancer cells as well as in many of the body’s normal cells but, remarkably, is able to distinguish between healthy cells and cancerous ones, killing only the latter.

The researchers said this meant it offered “exciting opportunities for pan-cancer, pan-population” immunotherapies not previously thought possible.[…]

Source: Discovery of new T-cell raises prospect of ‘universal’ cancer therapy – ScienceBlog.com