Scientists at UCL have engineered a rare type of immune cell to kill slow-growing bowel cancer cells that are resistant to current therapies, a breakthrough that could lead to new treatments in the future. Bowel cancer is one of the deadliest cancers in the world, causing over 900,000 deaths every year. While chemotherapy can help, it mostly works by killing fast-growing cancer cells. Unfortunately, many bowel cancer cells grow slowly, which means they can evade treatment and come back later,