Erythropoietin promotes expression of survivin via STAT3 activation and reduces sensitivity to cisplatin in cervical cancer cells.

Erythropoietin promotes expression of survivin via STAT3 activation and reduces sensitivity to cisplatin in cervical cancer cells. Oncol Rep. 2018 Nov 27;: Authors: Vázquez-Mellado MJ, Cortés-Ballinas LG, Blanco-Flores IC, Aguilar C, Vázquez-Gómez G, Rocha-Zavaleta L Abstract Erythropoietin (Epo) is used for the treatment of cancer‑associated anaemia. However, certain studies have identified that the administration of Epo mediates the acquisition of resistance to cisplatin, which is widely used to treat cervical cancer. Our group previously reported that cervical cancer cells express Epo receptor and that exogenous Epo induces cell proliferation and migration. However, the effect of Epo on cervical cancer cell death mediated by chemotherapeutic agents has not yet been evaluated. Thus, the aim of the present study was to assess the potential effect of Epo on the cytotoxic activity of cisplatin in cervical cancer cells. The effect of Epo was assessed in 3 cervical cancer‑derived cell lines. It was observed that pre‑incubation with Epo induced a significant reduction of cisplatin‑induced apoptosis in vitro and in vivo. Incubation with Epo induced the expression and activation of the transcriptional factor signal transducer and activator of transcription 3 (STAT3), which in turn stimulated the expression and activation of the anti‑apoptotic protein survivin. The cytotoxicity of cisplatin was partially restored by treating t...
Source: Oncology Reports - Category: Cancer & Oncology Tags: Oncol Rep Source Type: research