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. 2020 Jul 13;11(7):530. doi: 10.1038/s41419-020-2719-2

Fig. 5. Antitumour effect of the combination of aspirin and docetaxel or vinorelbine in a drug-resistant nude mouse model.

Fig. 5

Tumour formation assays in nude mice subcutaneously injected with MDA-MB-231/DR or MDA-MB-231/VR cells. When the tumours reached ~100 mm3, the mice were divided into a control group and groups receiving docetaxel (Doc, 8 mg/kg), aspirin (Asp, 50 mg/kg), and/or vinorelbine (Vin, 2 mg/kg). a, b The survival of mice was analysed by Kaplan–Meier analysis. c, d The tumour sizes were measured, and the inhibition rates were calculated. MDA-MB-231/DR group (Control vs Doc, P = 0.020, Control vs Doc + Asp, P < 0.001). MDA-MB-231/VR group (Control vs Vin, P = 0.030, Control vs Vin + Asp, P < 0.001). e, f Representative immunohistochemical staining results for Ki67, YAP and β-catenin in xenograft tumour tissues. The graph shows the immunoreactivity scores of Ki67, YAP and β-catenin in each group. Scale bar: 25 µM. In MDA-MB-231/DR group, the P values were shown, as fellow: Ki67 (Control vs Doc, P < 0.001; Control vs Doc + Asp, P < 0.001), YAP (Control vs Doc, P = 0.009; Control vs Doc+Asp, P < 0.001), β-catenin (Control vs Doc, P < 0.001; Control vs Doc+Asp, P < 0.001). In MDA-MB-231/VR group, the P values were shown, as fellow: Ki67 (Control vs Doc, P < 0.001; Control vs Doc + Asp, P < 0.001), YAP (Control vs Doc, P = 0.002; Control vs Doc+Asp, P < 0.001), β-catenin (Control vs Doc, P = 0.004; Control vs Doc+Asp, P < 0.001). The data are presented as the mean ± SD of experiments performed. Statistical significance was determined using Student’s t test and log-rank analysis.