NCIt synonyms : Exhausted T-Lymphocyte; Exhausted T Lymphocyte; Exhausted T Cell;
NCIt definition : An effector T-lymphocyte that is losing or has lost the ability to kill virally infected
cells. T-cell exhaustion occurs during infections with high viral loads and/or prolonged
duration. These T-lymphocytes undergo a gradual phenotype change and in the final
stage they are unable to mount a T-cell antiviral response and are highly susceptible
to apoptosis.;