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Low-level Er:YAG laser irradiation enhances osteoblast proliferation through activation of MAPK/ERK

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Abstract

Although the use of high-level Er:YAG laser irradiation has been increasing in periodontal and peri-implant therapy, the effects of low-level Er:YAG laser on surrounding tissues and cells remain unclear. In the present study, the effects of low-level Er:YAG laser irradiation on osteoblast proliferation were investigated. Cells of the osteoblastic cell line MC3T3-E1 were treated with low-level Er:YAG laser irradiation with various combinations of laser settings (fluence 0.7–17.2 J/cm2) and in the absence or presence of culture medium during irradiation. On day 1 and/or day 3, cell proliferation and death were determined by cell counting and by measurement of lactate dehydrogenase (LDH) levels. Further, the role of mitogen-activated protein kinase (MAPK) pathways in laser-enhanced cell proliferation was investigated by inhibiting the MAPK pathways and then measuring MAPK phosphorylation by Western blotting. Higher proliferation rates were found with various combinations of irradiation parameters on days 1 and 3. Significantly higher proliferation was also observed in laser-irradiated MC3T3-E1 cells at a fluence of approximately 1.0–15.1 J/cm2, whereas no increase in LDH activity was observed. Further, low-level Er:YAG irradiation induced the phosphorylation of extracellular signal-regulated protein kinase (MAPK/ERK) 5 to 30 min after irradiation. Although MAPK/ERK 1/2 inhibitor U0126 significantly inhibited laser-enhanced cell proliferation, activation of stress-activated protein kinases/Jun N-terminal kinase (SAPK/JNK) and p38 MAPK was not clearly detected. These results suggest that low-level Er:YAG laser irradiation increases osteoblast proliferation mainly by activation of MAPK/ERK, suggesting that the Er:YAG laser may be able to promote bone healing following periodontal and peri-implant therapy.

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References

  1. Hale GM, Querry MR (1973) Optical constants of water in the 200-nm to 200-μm wavelength region. Appl Opt 12:555–563

    Article  CAS  PubMed  Google Scholar 

  2. Aoki A, Sasaki KM, Watanabe H, Ishikawa I (2004) Lasers in nonsurgical periodontal therapy. Periodontol 2000 36:59–97

    Article  PubMed  Google Scholar 

  3. Schwarz F, Bieling K, Bonsmann M, Latz T, Becker J (2006) Nonsurgical treatment of moderate and advanced periimplantitis lesions: a controlled clinical study. Clin Oral Investig 10:279–288

    Article  PubMed  Google Scholar 

  4. Schwarz F, Aoki A, Becker J, Sculean A (2008) Laser application in non-surgical periodontal therapy: a systematic review. J Clin Periodontol 35:29–44

    Article  PubMed  Google Scholar 

  5. Sculean A, Schwarz F, Berakdar M, Windisch P, Arweiler NB, Romanos GE (2004) Healing of intrabony defects following surgical treatment with or without an Er:YAG laser. J Clin Periodontol 31:604–608

    Article  PubMed  Google Scholar 

  6. Crespi R, Cappare P, Toscanelli I, Gherlone E, Romanos GE (2007) Effects of Er:YAG laser compared to ultrasonic scaler in periodontal treatment: a 2-year follow-up split-mouth clinical study. J Periodontol 78:1195–1200

    Article  PubMed  Google Scholar 

  7. Ishikawa I, Aoki A, Takasaki AA, Mizutani K, Sasaki KM, Izumi Y (2009) Application of lasers in periodontics: true innovation or myth? Periodontol 2000 50:90–126

    Article  PubMed  Google Scholar 

  8. Yoshino T, Aoki A, Oda S, Takasaki AA, Mizutani K, Sasaki KM, Kinoshita A, Watanabe H, Ishikawa I, Izumi Y (2009) Long-term histologic analysis of bone tissue alteration and healing following Er:YAG laser irradiation compared to electrosurgery. J Periodontol 80:82–92

    Article  PubMed  Google Scholar 

  9. Pourzarandian A, Watanabe H, Ruwanpura SM, Aoki A, Ishikawa I (2005) Effect of low-level Er:YAG laser irradiation on cultured human gingival fibroblasts. J Periodontol 76:187–193

    Article  PubMed  Google Scholar 

  10. Pourzarandian A, Watanabe H, Ruwanpura SM, Aoki A, Noguchi K, Ishikawa I (2005) Er:YAG laser irradiation increases prostaglandin E2 production via the induction of cyclooxygenase-2 mRNA in human gingival fibroblasts. J Periodontal Res 40:182–186

    Article  CAS  PubMed  Google Scholar 

  11. Ishikawa I, Aoki A, Takasaki AA (2004) Potential applications of erbium:YAG laser in periodontics. J Periodontal Res 39:275–285

    Article  PubMed  Google Scholar 

  12. Sculean A, Schwarz F, Becker J (2005) Anti-infective therapy with an Er:YAG laser: influence on peri-implant healing. Expert Rev Med Devices 2:267–276

    Article  PubMed  Google Scholar 

  13. Aoki A, Mizutani K, Takasaki AA, Sasaki KM, Nagai S, Schwarz F, Yoshida I, Eguro T, Zeredo JL, Izumi Y (2008) Current status of clinical laser applications in periodontal therapy. Gen Dent 56:674–687

    PubMed  Google Scholar 

  14. Schwarz F, Aoki A, Sculean A, Becker J (2009) The impact of laser application on periodontal and peri-implant wound healing. Periodontol 2000 51:79–108

    Article  PubMed  Google Scholar 

  15. Pourzarandian A, Watanabe H, Aoki A, Ichinose S, Sasaki KM, Nitta H, Ishikawa I (2004) Histological and TEM examination of early stages of bone healing after Er:YAG laser irradiation. Photomed Laser Surg 22:342–350

    Article  PubMed  Google Scholar 

  16. de Mello ED, Pagnoncelli RM, Munin E, Filho MS, de Mello GP, Arisawa EA, de Oliveira MG (2008) Comparative histological analysis of bone healing of standardized bone defects performed with the Er:YAG laser and steel burs. Lasers Med Sci 23:253–260

    Article  PubMed  Google Scholar 

  17. Mizutani K, Aoki A, Takasaki AA, Kinoshita A, Hayashi C, Oda S, Ishikawa I (2006) Periodontal tissue healing following flap surgery using an Er:YAG laser in dogs. Lasers Surg Med 389:314–324

    Article  Google Scholar 

  18. Schwarz F, Jepsen S, Herten M, Sager M, Rothamel D, Becker J (2006) Influence of different treatment approaches on non-submerged and submerged healing of ligature induced peri-implantitis lesions: an experimental study in dogs. J Clin Periodontol 33:584–595

    Article  PubMed  Google Scholar 

  19. Takasaki AA, Aoki A, Mizutani K, Kikuchi S, Oda S, Ishikawa I (2007) Er:YAG laser therapy for peri-implant infection: a histological study. Lasers Med Sci 22:143–157

    Article  PubMed  Google Scholar 

  20. Theodoro LH, Sampaio JEC, Haypek P, Bachmann L, Zezell DM, Garcia VG (2006) Effect of Er:YAG and diode lasers on the adhesion of blood components and on the morphology of irradiated root surfaces. J Periodontal Res 41:381–390

    Article  PubMed  Google Scholar 

  21. Ohshiro T, Calderhead RG (1991) Development of low reactive-level laser therapy and its present status. J Clin Laser Med Surg 9:267–275

    CAS  PubMed  Google Scholar 

  22. Ozawa Y, Shimizu N, Kariya G, Abiko Y (1998) Low-energy laser irradiation stimulates bone nodule formation at early stages of cell culture in rat calvarial cells. Bone 22:347–354

    Article  CAS  PubMed  Google Scholar 

  23. Shimizu N, Mayahara K, Kiyosaki T, Yamaguchi A, Ozawa Y, Abiko Y (2007) Low-intensity laser irradiation stimulates bone nodule formation via insulin-like growth factor-I expression in rat calvarial cells. Lasers Surg Med 39:551–559

    Article  PubMed  Google Scholar 

  24. Stein A, Benayahu D, Maltz L, Oron U (2005) Low-level laser irradiation promotes proliferation and differentiation of human osteoblasts in vitro. Photomed Laser Surg 23:161–166

    Article  CAS  PubMed  Google Scholar 

  25. Pinheiro AL, Gerbi ME (2006) Photoengineering of bone repair processes. Photomed Laser Surg 24:169–178

    Article  CAS  PubMed  Google Scholar 

  26. Arisu HD, Türköz E, Bala O (2006) Effects of Nd:YAG laser irradiation on osteoblast cell cultures. Lasers Med Sci 21:175–180

    Article  PubMed  Google Scholar 

  27. Ninomiya T, Hosoya A, Nakamura H, Sano K, Nishisaka T, Ozawa H (2007) Increase of bone volume by a nanosecond pulsed laser irradiation is caused by a decreased osteoclast number and an activated osteoblasts. Bone 40:140–148

    Article  PubMed  Google Scholar 

  28. Robinson MJ, Cobb MH (1997) Mitogen-activated protein kinase pathways. Curr Opin Cell Biol 9:180–186

    Article  CAS  PubMed  Google Scholar 

  29. Pearson G, Robinson F, Gibson TB, Xu BE, Karandikar M, Berman K, Cobb MH (2001) Mitogen-activated protein (MAP) kinase pathways: regulation and physiological functions. Endocr Rev 22:153–183

    Article  CAS  PubMed  Google Scholar 

  30. Roux PP, Blenis J (2004) ERK and p38 MAPK-activated protein kinases: a family of protein kinases with diverse biological functions. Microbiol Mol Biol Rev 68:320–344

    Article  CAS  PubMed  Google Scholar 

  31. Bogoyevitch MA, Boehm I, Oakley A, Ketterman AJ, Barr RK (2004) Targeting the JNK MAPK cascade for inhibition: basic science and therapeutic potential. Biochim Biophys Acta 1697:89–101

    CAS  PubMed  Google Scholar 

  32. Shefer G, Oron U, Irintchev A, Wernig A, Halevy O (2001) Skeletal muscle cell activation by low-energy laser irradiation: a role of MAPK/ERK pathway. J Cell Physiol 187:73–80

    Article  CAS  PubMed  Google Scholar 

  33. Miyata H, Genma T, Ohshima M, Yamaguchi Y, Hayashi M, Takeichi O, Ogiso B, Otsuka K (2006) Mitogen-activated protein kinase/extracellular signal-regulated protein kinase activation of cultured human dental pulp cells by low-power gallium-aluminium-arsenic laser irradiation. Int Endod J 39:238–244

    Article  CAS  PubMed  Google Scholar 

Download references

Acknowledgments

This study was supported in part by a grant from the Global Center of Excellence Program for Frontier Research in Tooth and Bone Diseases at Tokyo Medical and Dental University, and by a Grand-in-Aid for Scientific Research (c)(2) (no. 16592064 and no. 19592382) to A.A., from the Ministry of Education, Culture, Sports, Science and Technology of Japan. Authors wish to thank Drs. Motohiro Komaki and Keiko Tanaka for their kind assistance and support.

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Correspondence to Akira Aoki.

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Aleksic, V., Aoki, A., Iwasaki, K. et al. Low-level Er:YAG laser irradiation enhances osteoblast proliferation through activation of MAPK/ERK. Lasers Med Sci 25, 559–569 (2010). https://doi.org/10.1007/s10103-010-0761-5

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  • DOI: https://doi.org/10.1007/s10103-010-0761-5

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