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Fig. 6 | BMC Cancer

Fig. 6

From: Decrease of Nibrin expression in chronic hypoxia is associated with hypoxia-induced chemoresistance in some brain tumour cells

Fig. 6

Chronic hypoxia reduces ATM activation after etoposide treatment. D283-MED cells were pre-incubated in 21% O2, 1% O2 or 0.1% O2 prior to treatment with 20 μM etoposide for 4 h, or cells were left untreated as a control. Levels of ATM and ATM serine 1981 phosphorylation were determined using 3 independent western blots. The plots represent the densitometry of a representative western blot (a) measured using Image J

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