Fig. 9.

Hematoxylin and eosin (H & E)-stained images of tumor tissues upon different experimental conditions: a PBS, b 0.3 N HCl, c 4-PMPB (10 mg kg⁻¹), d 4-PMPB (50 mg kg⁻¹), e 4-EMPB (10 mg kg⁻¹), f 4-EMPB (50 mg kg⁻¹), g 4-MMPB (10 mg kg⁻¹), h 4-MMPB (50 mg kg⁻¹) and i cisplatin. Black arrows and “N” represent mitotic figures and necrotic areas, respectively within the tumor mass. Scale bar: 200 μm