Figure 1From: CHK2 kinase expression is down-regulated due to promoter methylation in non-small cell lung cancerCHK2 expression is markedly diminished or absent in non-small cell lung cancer cell lines by immunoblotting analysis: The cells were treated with cisplatin (33 μM) for the time listed above, and the total cell lysates were harvested and analyzed by immunoblotting with anti-CHK2 polyclonal antibody. β-actin was used to normalize the loading in the each lane.Back to article page