Table 4. Correlation between ROS levels and apoptosis- or autophagy- related protein or polyubiquitination of Mcl-1.

	ROS levels	Atg-5	p62/SQSTM1	Caspase-3	Caspase-9	Ub-Mcl-1
ROS levels	1.00	0.34	0.26	0.64*	0.60*	0.86*
Atg-5	0.34	1.00	0.92*	0.08	0.09	0.03
p62/SQSTM1	0.26	0.92*	1.00	0.04	0.04	0.21
Caspase-3	0.64*	0.08	0.04	1.00	0.98*	0.53*
Caspase-9	0.60*	0.09	0.04	0.99*	1.00	0.47
Ub-Mcl-1	0.60*	0.19	0.12	0.57*	0.52*	1.00

Note: * P < 0.05 indicates a significant correlation coefficient.