ARCON
A
ccelerated
R
adiotherapy +
C
arbOgen +
N
icotinamide
D
D
D
D
D
S S
S S
S
S
S
S S
S
S
S
S
S
S
S
S
S
S
S
S
D
D
D
D D
D D
D
D
S
S
S
S
S
S
S
S
S S
S
S S
S
S
Tumor cell proliferation
D
S
S
S
S
S
S
S
S
D
D
D
D
D
D
D
D
D D
D
S
S S
S
S
S
S
S
S
S
S
S
S
S
S
D
D
D
D
D
D
D
D
D
D
S
S
S S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
D
D
D
D
D
D
D
D
D
D
D
D
S
S
S S
S
S
S
S
S
S
D
D
D
D
D
D
D D
D
D
D
D
D
S
S
S
S
S
S S
S
S
S
S
S
S
S
S S
S
D S
S
D
D
S
S S
S S
S
S
S
D
D
D
S
S
S
S
D
D
D
D
D
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
Accelerated fractionation
S
D S
S
D
D
S
S S
S S
S
S
S
D
D
D
S
S
S
S
D
D
D
D
D
S
S
S
S
S
S
S
S S
S
S
S
S
S
S
S
D
stem cell
differentiated cell
Chronic hypoxia
Carbogen
98% O
2
+ 2% CO
2
Nicotinamide
Acute hypoxia




