PMID: 18403888Apr 12, 2008Paper

Effects of Smads and BMPs induced by Ga-Al-As laser irradiation on calcification ability of human dental pulp cells

Journal of Oral Science
Satoshi MatsuiKiyoshi Matsushima

Abstract

We investigated the effects of Ga-Al-As laser irradiation on the mineralization ability of human dental pulp (HDP) cells and on Smads and bone morphogenetic protein (BMP) production as one mechanism for the transmission of laser photochemical energy to cells. HDP cells in vitro were irradiated once with a Ga-Al-As laser at 1.0 W for 500 s, and calcified nodule formation was assessed by Alizarin red S staining. The laser irradiation was greater in the laser-irradiated group than in the non-irradiated group. Both calcium production and alkaline phosphatase (ALP) activity were higher after laser irradiation. Expression of mRNAs for Smad1, Smad7, BMPs, ALP, and osteocalcin was greater after laser irradiation, whereas expression of Smad6 mRNA was inhibited. Production of BMP-2 and BMP-4 in conditioned medium was also higher after laser irradiation. These results suggest that Smads and BMPs play important roles in ALP activity and calcification upon laser irradiation of HDP cells.

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Citations

Jul 9, 2010·Annals of Biomedical Engineering·Hideyoshi IkedaIzumi Asahina
Apr 7, 2009·Lasers in Surgery and Medicine·Silvia SaracinoGiuliana Muzio
Feb 4, 2010·Lasers in Surgery and Medicine·In Sook KimSoon Jung Hwang
Nov 1, 2016·Photomedicine and Laser Surgery·Márcia Martins MarquesMaria Stella Moreira
Jan 18, 2011·Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics·Po-Shuen LinJiiang-Huei Jeng
Sep 24, 2016·Lasers in Medical Science·Fawad JavedGeorgios E Romanos
Aug 11, 2012·Journal of Dental Research·M J HolderP R Cooper
Apr 17, 2015·Voprosy kurortologii, fizioterapii, i lechebnoĭ fizicheskoĭ kultury·A N Emel'yanov, V V Kir'yanova

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