Evaluation of the EMulate Therapeutics Voyager's ultra-low radiofrequency energy in murine model of glioblastoma.

Publication Title

Bioelectron Med

Authors

Rajesh Mukthavaram
Pengfei Jiang
Sandra Pastorino
Natsuko Nomura, Department of Translational Neurosciences, Pacific Neuroscience Institute & Saint John's Cancer Institute at Providence Saint John's Health Center, 2200 Santa Monica Blvd., Santa Monica, CA, 90404, USA.Follow
Feng Lin
Santosh Kesari, Department of Translational Neurosciences, Pacific Neuroscience Institute & Saint John's Cancer Institute at Providence Saint John's Health Center, 2200 Santa Monica Blvd., Santa Monica, CA, 90404, USA. santosh.kesari@providence.orgFollow

Document Type

Article

Publication Date

4-10-2024

Keywords

Glioblastoma; Magnetic fields; Medical device; Novel therapy; Ultra-low radiofrequency energy; Xenograft model.california; santa monica; pni; sjci

Abstract

BACKGROUND: Glioblastoma (GBM) presents as an aggressive brain cancer, notorious for its recurrence and resistance to conventional treatments. This study aimed to assess the efficacy of the EMulate Therapeutics Voyager®, a non-invasive, non-thermal, non-ionizing, battery-operated, portable experimental medical device, in treating GBM. Using ultra-low radiofrequency energy (ulRFE) to modulate intracellular activity, previous preliminary results in patients have been encouraging. Now, with a focus on murine models, our investigation seeks to elucidate the device's mechanistic impacts, further optimizing its therapeutic potential and understanding its limitations.

METHODS: The device employs a silicone over molded coil to deliver oscillating magnetic fields, which are believed to interact with and disrupt cellular targets. These fields are derived from the magnetic fluctuations of solvated molecules. Xenograft and syngeneic murine models were chosen for the study. Mice were injected with U-87 MG or GL261 glioma cells in their flanks and were subsequently treated with one of two ulRFE cognates: A1A, inspired by paclitaxel, or A2, based on murine siRNA targeting CTLA4 + PD1. A separate group of untreated mice was maintained as controls.

RESULTS: Mice that underwent treatments with either A1A or A2 exhibited significantly reduced tumor sizes when compared to the untreated cohort.

CONCLUSION: The EMulate Therapeutics Voyager® demonstrates promising potential in inhibiting glioma cells in vivo through its unique ulRFE technology and should be further studied in terms of biological effects in vitro and in vivo.

Area of Special Interest

Cancer

Area of Special Interest

Neurosciences (Brain & Spine)

Specialty/Research Institute

Oncology

Specialty/Research Institute

Neurosciences

DOI

10.1186/s42234-024-00143-8