Although most thyroid cancer patients have good clinical outcomes, there are still no effective therapies for patients with anaplastic thyroid cancers (ATC). Nano-pulse stimulation (NPS) is increasingly recognized as a non-thermal ablation technology that selectively targeting cancer cells. The aim of this study was to investigate the in vitro antitumor mechanism of NPS on human ATC cells. The cell line 8305C were treated with NPS and the CCK-8 assay, clonogenic assay, apoptosis assay and nitric oxide synthase (NOS) activity assay were used to test cell proliferation, apoptosis and NOS changes respectively. Our results showed that NPS can significantly (P < 0.05) inhibit ATC cell proliferation and induce apoptosis in a field strength-dependent manner. Moreover, the NOS activity in NPS treated groups obviously increased (P < 0.05). Further analysis indicated that NPS induced an inducible nitric oxide synthase (iNOS)-dependent killing in ATC cells. Finally, our research reveals for the first time that NPS is an effective non-thermal candidate for the treatment of ATC and supports a new possible calcium independent mechanism involvement in NPS treatment.

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http://dx.doi.org/10.1016/j.bioelechem.2022.108093DOI Listing

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