Army of specialized T cells may trigger asthma attacks in older men

LA JOLLA, CA—Scientists from La Jolla Institute for Immunology (LJI) and The University of Southampton, UK, have uncovered a group of immune cells that may drive severe asthma. These cells, called cytotoxic CD4+ tissue-resident memory T cells, gather in the lungs and appear to possess the molecular weaponry to cause the most harm in men who developed asthma later in life.