Science News from research organizations Scientists solve a major roadblock holding back cancer cell therapy A long-missing immune cell can now be grown from stem cells, bringing scalable cancer cell therapies a major step closer. Date: January 20, 2026 Source: University of British Columbia Summary: Researchers have found a reliable way to grow helper T cells from stem cells, solving a major challenge in immune-based cancer therapy. Helper T cells act as the immune system’s coordinators, helping other immune cells fight longer and harder.