Baylor College of Medicine Researchers Discover New Immune System Mechanism Against Cancer
Scientists at Baylor College of Medicine, led by Dr. Pavan Reddy, have uncovered a novel way the immune system can attack cancer, challenging a long-standing principle in immunology. The research, conducted in collaboration with the University of Michigan Rogel Cancer Center, reveals that the immune system's major histocompatibility complexes (MHC) play a more complex role than previously thought. Traditionally, MHC class I molecules were believed to communicate primarily with CD8+ T cells, while MHC class II molecules activated CD4+ T cells. However, the study suggests that MHC class I also influences immune responses driven by CD4+ T cells. This discovery could lead to new approaches for cancer treatment and bone marrow transplantation, as it shows that cancer cells losing MHC I expression become more vulnerable to CD4+ T cell attacks, triggering ferroptosis, a form of cell death. 
