Effects of enamel matrix derivative on bone-related mRNA expression in human periodontal ligament cells in vitro.
Effects of enamel matrix derivative on bone-related mRNA expression in human periodontal ligament cells in vitro.
复制标题
釉质基质衍生物对体外人牙周膜细胞骨相关mRNA表达的影响。
DOI:
10.1902/jop.2006.050244
复制
发表时间:
2006
影响因子:
4.3
通讯作者:
T. Oates
中科院分区:
文献类型:
--
作者:
Kazuaki Takayanagi;G. Osawa;H. Nakaya;D. Cochran;K. Kamoi;T. Oates
BACKGROUND
Enamel matrix derivative (EMD) has demonstrated the potential to stimulate periodontal regeneration with mineralized tissue formation. Molecular regulators of bone metabolism include osteoprotegrin (OPG), receptor activator of nuclear factor kappa B ligand (RANKL), cyclooxygenase 2 (COX2), and core binding factor alpha 1 (Cbfa1). The role of these regulatory molecules within the context of EMD stimulation of mineralized tissue formation is unknown. Therefore, the purpose of this investigation was to explore the effects of EMD on these bone-related molecules in human periodontal ligament (PDL) cells.
METHODS
Human PDL-cell cultures were treated with EMD (5 to 100 microg/ml) for 24 hours. Total RNA was isolated using phenolchloroform, and reverse transcription-polymerase chain reaction (RT-PCR) was performed using primers specific for OPG, RANKL, COX2, Cbfa1, and aldolase, with amplification in the exponential range for each molecule studied.
RESULTS
The results of this study show that there is a significant (P <0.05) increase in COX2 mRNA levels with EMD treatment, and no effects were noted on mRNA levels for Cbfa1. RANKL mRNA levels were significantly decreased (P <0.01) up to 50% with EMD treatment > or =25 microg/ml. OPG levels showed minimal effects with EMD treatment. However, the RANKL/OPG ratio showed a 40% to 55% reduction with EMD >or =25 microg/ml.
CONCLUSION
This study supports a role for EMD stimulation of mineralized tissue formation consistent with periodontal regeneration by modulating regulatory molecules critical to bone metabolism at the RNA level.
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影响因子:
4.8
作者:
S. Khosla
通讯作者:
S. Khosla
影响因子:
3.5
作者:
Harold C. Slavkin;P. Bringas;C. Bessem;V. Santos;Masanori Nakamura;Mingyoun Hsu;Malcolm L. Snead;M. Zeichner‐David;A. Fincham
通讯作者:
Harold C. Slavkin;P. Bringas;C. Bessem;V. Santos;Masanori Nakamura;Mingyoun Hsu;Malcolm L. Snead;M. Zeichner‐David;A. Fincham
影响因子:
3
作者:
SOMERMAN, MJ;YOUNG, MF;SAUK, JJ
通讯作者:
SAUK, JJ
DOI:
--
发表时间:
1992
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Chen,D;Magnuson,V;Hill,S;Arnaud,C;Steffensen,B;Klebe,RJ
通讯作者:
Klebe,RJ
影响因子:
3.5
作者:
Nohutcu,RM;McCauley,LK;Shigeyama,Y;Somerman,MJ
通讯作者:
Somerman,MJ