T lymphocytes (T cells) are a type of white blood cell that is vital for the function of cell-mediated immunity. Once it is produced in the Thymus, naive T cells enter the bloodstream and migrate towards the lymphoid tissue until they are in contact with their specific antigen. Once it binds to the target cells, T lymphocytes begin to proliferate and differentiate into cells i.e. armed effector T cells for the removal of the antigen .
- ↑ Janeway CA Jr, Travers P, Walport M, et al. Immunobiology: The Immune System in Health and Disease. 5th edition. New York: Garland Science; 2001. Chapter 8, T Cell-Mediated Immunity. Available from: http://www.ncbi.nlm.nih.gov/books/NBK10762/