Figure 4: Malignant tissues support a high oxidative stress. Diverse normal tissues (left pictures) and tumour tissues of the same origin (right pictures) stained with anti-APE1. TMA spots of at least 6 different patients showed equivalent results. A): prostate versus prostate adenocarcinoma; B): ovary versus serous papillary carcinoma; C): uterus versus squamous cellular carcinoma; D): striated muscle versus rhabdomyosarcoma; E): brain versus astrocytoma; F): lung versus squamous cellular carcinoma; G): liver versus hepato-cellular carcinoma; H): breast versus infiltrated ductal carcinoma; I): kidney versus clear cell carcinoma; J): bladder versus transitional cell carcinoma; K): pancreas versus pancreas adenocarcinoma. Magnification bar = 50μm.