Cold atmospheric plasma enhances osteoblast differentiation.

Tominami, Kanako; Kanetaka, Hiroyasu; Sasaki, Shota; Mokudai, Takayuki; Kaneko, Toshiro; Niwano, Yoshimi · PLoS One · 2017

basic_science · Level V

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Abstract

This study was designed to assess the effects of cold atmospheric plasma on osteoblastic differentiation in pre-osteoblastic MC3T3-E1 cells. Plasma was irradiated directly to a culture medium containing plated cells for 5 s or 10 s. Alkaline phosphatase (ALP) activity assay and alizarin red staining were applied to assess osteoblastic differentiation. The plasma-generated radicals were detected directly using an electron spin resonance-spin trapping technique. Results show that plasma irradiation under specific conditions increased ALP activity and enhanced mineralization, and demonstrated that the yield of radicals was increased in an irradiation-time-dependent manner. Appropriate plasma irradiation stimulated the osteoblastic differentiation of the cells. This process offers the potential of promoting bone regeneration.

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