"helper T cell." YourDictionary, n.d. Web. 14 October 2018. <http://www.yourdictionary.com/helper-t-cell>.
helper T cell. (n.d.). Retrieved October 14th, 2018, from http://www.yourdictionary.com/helper-t-cell
helper T cell
Any of a class of T cells that are activated by interacting with antigen-presenting cells, such as a dendritic cells, and then function to activate other cells of the immune system, including B cells, cytotoxic T lymphocytes, and phagocytes. Activated helper T cells usually have CD4 receptors on the surface. Also called T-helper cell .