helper T-cell
/ Helper T-Cell (CD4+)
/ TH1
/ TH2
/ CD8 T-Cell
/ T-Cell or T-Lymphocyte
... different type of T-cell: T-helper cell (
T4 cell, CD4 cell), T-killer cell (cytoxic T cells), T-suppressor cell (T8 cell, CD8 cell).
http://www.mult-sclerosis.org/helperTcell.html