The Effect of Mineral Trioxide Aggregate on the Production of Growth Factors and Cytokine by Human Periodontal Ligament Fibroblasts = Mineral trioxide aggregate (MTA)가 치주인대 섬유아세포에서 분비되는 cytokine과 성장인자 TGF-β1, FGF-2 발현에 미치는 영향

국문 초록 (Abstract)

이 연구의 목적은 치주인대 섬유아세포에 MTA를 접촉시킨 뒤 성장인자 transforming growth factor-betal (TGF-β1), fibroblast growth factor-2 (FGF-2) 및 cytokine interleukin-6 (IL-6)의 발현량 변화를 측정하는 것이다. MTA군에서는 100 mg씩의 ProRoot MTA와 증류수를 혼합하고, IRM군은 동량의 IRM 분말을 용액에 혼합하여, 이 시료들을 경화반응이 진행되도록 7일간 놓아두었다. 사람의 치주인대 섬유아세포를 배양하여 MTA와 TRM 시료 상에 well당 1×10^(5)개 수준으로 도포한 뒤 6, 12, 24, 48시간 동안 배양하였다 (n = 5). 대조군으로는 재료의 접촉 없이 배양한 세포를 사용하였다. 시료에서 상c층액을 분리하여 TGF-β1, FCF-2, IL-6의 발현량을 enzyme-linked immunosorbent assay (ELISA)법으로 측정하였다. MTA군에서, 성장인자인 TGF-β1과 FGF-2는 대조군에 비해 유의성 있게 발현이 억제되었으며 (p<0.05), cytokine인 IL-6 발현량은 대조군과 유사한 수준으로 나타났다.

다국어 초록 (Multilingual Abstract)

Mineral trioxide aggregate (MTA) would influence healing of periapical tissues by modulating the production of growth factors and cytokines from PDL fibroblasts, however, the studies are insufficient. Therefore, the purpose of this study was to monitor the expression of transforming growth factor-betal (TGF-β1), fibroblast growth factor-2 (FGF-2), and interleukin-6 (IL-6) from PDL fibroblasts in the presence of MTA. The human PDL fibroblasts were seeded onto the set MTA or IRM at a level of 1×10^(5) cells per unit well, and further incubated for 6, 12, 24, and 48 hours. The levels of TGF-β1, FGF-2, and IL-6 from the supernatant were measured by enzyme-linked immunosorbent assay (ELISA). The data were analyzed using one-way ANOVA. The level of TGF-β1 was down-regulated when the cells were grown in the presence of MTA except at 6 hours. The levels of FGF-2 release were significantly suppressed when PDL fibroblasts were grown in the presence of MTA or IRM at all time intervals (p<0.05). The expressions of IL-6 from MTA treated cells were comparable to those of untreated control cells throughout the observation periods. We presume that this material inhibits the stimulatory function of growth factors on granulation tissue formation and in turn, it promotes the healing process modulated by other bone-remodeling cells. [J Kor Acad Cons Dent 32(3):191-197, 2007]

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