because vla-1 defines a novel late stage of t cell activation , being present on all or most all types of long-term activated t cells , and not on any other cell types in peripheral blood , it has unique potential as a marker for activated t cells in vivo and may provide a clue towards elucidating novel long-term t cell functions or growth requirements of this late stage of t cell differentiation .
C0039194
t
C1515126
growth