Nano-Pulse Stimulation Therapy in Oncology

Le résumé fourni par la source

Background: Nano-Pulse Stimulation (NPS) therapy applies electric pulses in the nanosecond domain to initiate regulated cell death in the treated tissues. This nonthermal therapy has been used to treat a wide range of murine tumors and has been shown to activate the immune system to inhibit the growth of rechallenge tumors, as well as untreated, abscopal tumors when accompanied by the injection of immune system stimulants into the treated tumors. Clinical trials have begun using NPS to treat basal cell carcinoma and hepatocellular carcinoma. Methods: Murine tumors can be easily imaged when the tumor cells are injected intradermally so that they grow within the mouse skin. Pulling the skin over a translucent light post shines light through the skin and makes it easy to treat the tumor and identify the treatment zone. Results: Original research using murine tumor models is described, including melanoma, squamous cell carcinoma, lung carcinoma, breast carcinoma, and pancreatic carcinoma. The energy required to ablate these tumors has been determined with pancreatic carcinoma and lung carcinoma exhibiting 90% ablation with 240 mJ/mm 3 , lung carcinoma and squamous cell carcinoma requiring 360 mJ/mm 3 , and melanoma requiring 480 mJ/mm 3 . NPS therapy initiated a variable immune response indicated by the rejection of injected rechallenge tumor cells with melanoma and hepatocellular carcinoma exhibiting the strongest response and lung carcinoma, the weakest response. Following the original research data, a review of human clinical trials using NPS therapy is presented. Conclusions: NPS therapy offers a nonthermal, drug-free approach for oncology, which is limited only by applying energy to the tumor. This new immunogenic modality is just beginning to be applied in the clinic. The 87% efficacy of the first large clinical trial conducted by several medical personnel is impressive and indicates that NPS is an effective new modality for cancer treatment.

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