title: Optimized nanosecond pulsed electric field therapy can cause murine malignant melanomas to self-destruct with a single treatment.
abstract: We have identified a new, nanosecond pulsed electric field (nsPEF) therapy capable of eliminating murine melanomas located in the skin with a single treatment. When these optimized parameters are used, nsPEFs initiate apoptosis without hyperthermia. We have developed new suction electrodes that are compatible with human skin and have applied them to a xenograft nude mouse melanoma model system to identify the optimal field strength, pulse frequency and pulse number for the treatment of murine melanomas. A single treatment using the optimal pulse parameters (2,000 pulses, 100 ns in duration, 30 kV/cm in amplitude at a pulse frequency of 5-7 pulses/sec) eliminated all 17 melanomas treated with those parameters in 4 mice. This was the highest pulse frequency that we could use without raising the treated skin tumor temperature above 40 degrees C. We also demonstrate that the effects of nsPEF therapy are highly localized to only cells located between electrodes and results in very little scarring of the nsPEF-treated skin.
authors.affiliation: BioElectroMed Corp., 849 Mitten Rd., Suite 105, Burlingame, CA 94010, USA. rich@bioelectromed.com
authors.forename: Richard
authors.initials: R
authors.lastname: Nuccitelli
authors.forename: Kevin
authors.initials: K
authors.lastname: Tran
authors.forename: Saleh
authors.initials: S
authors.lastname: Sheikh
authors.forename: Brian
authors.initials: B
authors.lastname: Athos
authors.forename: Mark
authors.initials: M
authors.lastname: Kreis
authors.forename: Pamela
authors.initials: P
authors.lastname: Nuccitelli
mesh_terms: D000818:Animals; D004599:Electric Stimulation Therapy / Q000379:methods*; D005260:Female; D006801:Humans; D008546:Melanoma, Experimental / Q000473:pathology* / Q000628:therapy; D051379:Mice; D008819:Mice, Nude; D012878:Skin Neoplasms / Q000473:pathology / Q000601:surgery / Q000628:therapy; D013396:Suction / Q000379:methods
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