Mitochondrial complex activities in DAN cells expressing various
α-synuclein constructs. A, Western immunoblot analysis of
mitochondrial (100 μg) localization of WT/synuclein-FLAG and
A53T/synuclein-FLAG with time using antibodies to FLAG. B, levels of
TOM20. Mitochondrial complex I activity (C) and the production of ROS
(D) were estimated at various time points following the expression of
WT/synuclein-FLAG, A53T/α-synuclein-FLAG, and +33/synuclein-FLAG cDNA
constructs. *, p < 0.05 compared with vector control.
**, p < 0.05 compared with vector control, and
+33/α-synuclein-FLAG constructs. #, p < 0.05
compared with WT/synuclein-FLAG (one-way analysis of variance with
Tukey-Kramer post test). Western immunoblot analysis of endogenous
α-synuclein (E), actin (F), and TOM20 (G) in
total homogenate (100 μg) and mitochondria (100 μg) following 48-h
transfection of α-synuclein-specific siRNA in DAN cells. Mitochondrial
NADH cytochrome c reductase (H) and complex I (I)
in control and α-synuclein-specific siRNA transfected DAN cells.
*, p < 0.05 (Student t test).