Supplemental Figure Legends. Figure S1. ROS flux to The âsweet spotâ Results in Maximal Self-renewal and Proliferation of. ABSCs, Related to Figure 1.
Cell Stem Cell, Volume 15 Supplemental Information
Dynamic Changes in Intracellular ROS Levels Regulate Airway Basal Stem Cell Homeostasis through Nrf2-Dependent Notch Signaling Manash K. Paul, Bharti Bisht, Daphne O. Darmawan, Richard Chiou, Vi L. Ha, William D. Wallace, Andrew T. Chon, Ahmed E. Hegab, Tristan Grogan, David A. Elashoff, Jackelyn A. Alva-Ornelas, and Brigitte N. Gomperts
B
C
0
F
ROShi
mABSCs ROShi
ROSlo
102 103 104 105 ITGA6 ROSlo
**
5 4 3
ROShi ROSlo
*
2 1 0
p63
K5 K14 Ngfr
K
1.6
**
***
Unsorted
a
** **
1.2 0.8 0.4
I
0
P0
P0 P1 P1 (Number of passages)
ROSlo mABSCs
P2
hABSCs ROShi
*** 6.0 4.0 2.0 0.0 P1 P0 (Number of passages)
J
ROSlo
b100
***
8.0
P3
***
***
50
0
P1 P0 (Number of passages)
ROSlo mABSCs Untreated
1 μM H2O2
0.5 mM NAC + 1 μM H2O2
1.0 mM NAC
0.1 mM NAC + 1 μM H2O2
0.1 mM NAC
0.5 mM NAC
* 100
50 0
-
5 10 100 500 Paraquat (μM) 1 μM H2O2
5.0 mM NAC
1.0 mM NAC + 1 μM H2O2
5.0 mM NAC + 1 μM H2O2
Scale:
100 μm
K5 K8 DAPI
0.1 mM NAC K5 K8 DAPI
0.1 mM NAC + 1 μM H2O2 K5 K8 DAPI
L
0.5 mM NAC + 1 μM H2O2 K5 K8 DAPI
1.0 mM NAC K5 K8 DAPI
1.0 mM NAC + 1 μM H2O2 K5 K8 DAPI
5.0 mM NAC K5 K8 DAPI
10 μm
5.0 mM NAC + 1 μM H2O2 K5 K8 DAPI
160
ROSlo mABSCs derived spheres
100
***
120 80 40
M
% Control
0.5 mM NAC K5 K8 DAPI
% Control (no. of spheres)
ROSlo mABSC derived spheres
Scale:
P2
**
150
Untreated
K5 K8 DAPI
ROSlo Mito Sox
P1
P3 Scale: 100 μm
G
Mouse ROShi DHE
P1
***
0 H2O2 (μM) 1 1 1 GSH (mM) 0 0.5 1
***
80 60 40 20 0
1 5
*** 1 10 100 DPI (nM)
*** DMSO
6
hi v/s
% control (no. of spheres)
H mABSC ROS Relative quantification
% Cells seeded (no. of spheres)
104 103 ROSlo 102 102 103 104 105 ITGA6
104 103 102
mABSCs (P3)
102 103 104 105 ITGA6
102 103 104 105 ITGA6
% Cells seeded (no. of spheres)
mABSCs
105
mABSCs (P2)
102 103 104 105 ITGA6
105
b ROS (Mito Sox)
50
mABSCs (P1)
% (EdU+/ DAPI+ nuclei)
ROSl0 ROShi ROS (DHE)
Ea
***
P1 P0 (Number of passages)
20 μm
Scale:
100
mABSCs ROShi ROSlo
ROSlo
***
ROS 102 103 104 105
% (EdU+/ DAPI+ nuclei)
ROShi
ROS 102 103 104 105
(P0) sphere K5 EdU DAPI
D ROS 102 103 104 105
Figure S1 AABSCs derived
0.1 0.5 1 APO (mM)
Figure S2 A
B
POL BrdU 1
0 hours
12
BrdU 2
24
36
BrdU 3
48
60
72
12 hpi
72 hpi
24 hpi
uninjured
Sacrifice 1 Sacrifice 2 Sacrifice 3 20 μm
48 hpi Scale: Tracheal isolation and embedding H&E and IF analysis