Figure 4. UPR markers in HL60 models.
(A) HL60 cells were transfected (electroporation) with WT and mutant (P139L, G214R, C151Y, V174_C181del) NE-expressing vectors, cultured for 48 h, lysed, and Western blots were performed using anti-BiP and anti-ATF6 Abs as described in Materials and methods. (B) Tet-regulated HL60 cells expressing WT or mutant NE were cultured for 72 h in the presence or absence of doxycycline, lysed, and Western blots were performed as described. Representative experiments are shown (n = 3).