Development of next-generation therapy for temporomandibular joint arthrosis by gene transfer technique using nanofullerene and ultrasonic wave

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We develop the next-generation therapy for temporomandibular joint arthrosis by gene transfer techmique using the nanofullerene and ultrasonic wave. HIG-82 cells were seeded into silicon chambers. The chambers were attached to a stretching apparatus which applied a uniaxial sinusoidal stretching force. The amounts of IL-1β, IL-1ra, PGE2 released into the culture medium were determined using ELISA. Nanofullerene pretreatment suppressed PGE2 synthesis induced by mechanical stretch. We used sonoporation to transfect DNA-nanofullerene into HIG-82 cells and examined the transfection efficiency. Transfection efficiency was significantly increased when the cells were ultrasonicated with nanofullerene.