GATA-3 expression in T-cell lymphoproliferative disorders. GATA-3 expression was determined by immunohistochemistry in (A) CTCL and (B) PTCL, NOS clinical specimens. Three representative cases (P1-P3) are shown. (C) Cytoplasmic (C) and nuclear (N) fractions were obtained from the patient-derived TCL lines shown, and GATA-3 expression was determined by western blot.