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bioRxivMolecular BiologyPreprint

Cyclic Electromagnetic DNA Simulation (CEDS) targeting Telomere Repeat Sequence can enhance Anticancer Effect, while CEDS targeting Canonical E-box Sequence induce Oncogenic Effect in Cells

Yeon Sook KimiD, Suk Keun LeeiD

PDFDOI

Abstract

Cyclic electromagnetic DNA simulation (CEDS) was used in the previous study (1) to stimulate the base pair polarities of oligo-dsDNAs, plasmid DNAs, and miRNAs. This study applied dodecagonal CEDS to target telomere repeat sequence (TTAGGG*-CEDS), canonical E-box sequence (CACGTG*-CEDS) in genomic DNA of RAW 264.7 cells and KB cells. During cell culture, CEDS was performed at 20-25 Gauss for 20 min, and followed by cytological observation and immunoprecipitation high-performance liquid chromatography (IP-HPLC) using 350 antisera. KB cells treated with TTAGGG*-CEDS showed a significant decrease in cell density and metachromasia in toluidine blue staining compared to untreated control, while only a slight decrease in cell density and metachromasia was observed by telomere mutation sequence, TTTGGG*-CEDS. Conversely, CACGTG*-CEDS induced almost no change in cell density, cell number, metachromasia in toluidine blue staining compared to random sequence*-CEDS (2(ACGT)*-CEDS) and untreated control. IP-HPLC results showed that TTAGGG*-CEDS induced a potent anticancer effect by downregulating RAS, oncogenesis, and telomere signaling, and activating NFkB signaling-p53-and FAS-mediated apoptosis-innate and cellular immunity signaling axis compared to untreated control and positive control performed with nonspecific poly-A 12A*-CEDS. In contrast, CACGTG*-CEDS exhibited a significant oncogenic effect by enhancing of RAS and NFkB signaling and resulting oncogenesis-glycolysis-chronic inflammation signaling axis. Therefore, it is suggested that CEDS is able to target DNA motif sequences in genomic DNA, and that TTAGGG*-CEDS and CACGTG*-CEDS are favorable candidates to regulate important genes involved in oncogenesis, inflammation, apoptosis, etc.

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