Granzyme A-expressing Terminal Effector T Cells Dedifferentiate into Long-lived Memory T Cells
This study challenges the strict bifurcation model by demonstrating that while early memory T cells primarily arise from Granzyme A-negative precursors, Granzyme A-expressing terminal effector T cells can subsequently dedifferentiate into long-lived functional memory cells, resulting in a mixed memory population derived from both linear and bifurcated differentiation paths.