cFLIP is overexpressed in SzS CD4⁺/CD26⁻ cells. cDNA from HD (n = 5), Fas-expressing FasL-resistant SzS (n = 5, patients 3, 4, 5, 7, and 9), Fas-expressing FasL-sensitive (n = 4, patients 11, 14, 15, and 16) CD4⁺/CD26⁻ sorted cells and HUT78, MyLa, and SeAx cell lines were amplified using cFLIP specific primers and compared with HsEEF1A1, GusB, and ALAS expression. Mean (± SD) of the relative expression is reported.