scholarly journals Biological Effects of Amelogenin Exon 5 Encoded Peptide from Enamel Matrix Derivative in Human Dental Pulp Cells

Author(s):  
Hirohito Kato ◽  
Yoichiro Taguchi ◽  
Kazuya Tominaga ◽  
Masahiro Noguchi ◽  
Kazutaka Imai ◽  
...  

Enamel matrix derivative (EMD) is used for periodontal tissue regeneration therapy, and can induce mineralization in dental pulp cells (DPCs). We designed a synthetic peptide (SP) derived from the response of cells to EMD, and investigated the effect of the SP on potentiating osteogenesis in DPCs, which have a critical role of dental pulp homeostasis. DPCs were treated with 0, 10, 100, or 1000 ng/mL SP to determine its effect on cell proliferation, cell migration, cell differentiation, and mineralization. We then examined the molecular effects of the SP, focusing on changes in the mitogen-activated protein kinases (MAPK) signaling pathway in these cells. The SP significantly promoted DPC proliferation and migration. Cultures treated with the SP also showed an enhanced expression of markers of osteogenic differentiation and mineralization. The SP also induced the activation of MAPK signaling pathway components. These results suggest that our SP could promote the dental pulp tissue repair by hard tissue formation and the mineralization through activating MAPK signaling pathway. This study provides the first evidence that SP might be a new material for dental pulp tissue treatment.

2013 ◽  
Vol 46 (10) ◽  
pp. 962-970 ◽  
Author(s):  
W. Zhu ◽  
X. Zhu ◽  
G. T.-J. Huang ◽  
G. S. P. Cheung ◽  
W. L. Dissanayaka ◽  
...  

2003 ◽  
Vol 29 (3) ◽  
pp. 176-179 ◽  
Author(s):  
N ISHIZAKI ◽  
K MATSUMOTO ◽  
Y KIMURA ◽  
X WANG ◽  
A YAMASHITA

2019 ◽  
Vol 25 ◽  
pp. 10016-10028 ◽  
Author(s):  
Songbo Tian ◽  
Jie Wang ◽  
Fusheng Dong ◽  
Nan Du ◽  
Wenjing Li ◽  
...  

2019 ◽  
Vol 30 (5) ◽  
pp. 484-490
Author(s):  
Laura Alves Bastos ◽  
Francine Lorencetti Silva ◽  
João Pedro de Queiroz Thomé ◽  
Maya Fernanda Manfrin Arnez ◽  
Lúcia Helena Faccioli ◽  
...  

Abstract Papain-based gel is used for chemical-mechanical caries removal and present antimicrobial and anti-inflammatory activities. However, its effects on dental pulp cells and on macrophages remains largely unknown. Therefore, the aim of this study was to investigate whether the papain-based gel Papacárie Duo® acts as an immunomodulator in lipopolysaccharide (LPS)-activated macrophages and its effects on dental pulp cells . J774.1 macrophage and OD-21 dental pulp cells were stimulated with 0.5% and 5% of Papacárie Duo®, following pre-treatment or not with LPS. After 24 h, a lactate dehydrogenase assay was used to measure cytotoxicity, a tetrazolium-based colorimetric assay (MTT) was used to measure cell viability, and qRT-PCR was used to analyze relative gene expression of Ptgs2, Il10, Tnf, Mmp9, Runx2, Ibsp and Spp1. Papacárie Duo® was cytotoxic and reduced cell viability at 5% but not at 0.5% in both cultures. In macrophages, Papacárie Duo® increased the expression Il10 and LPS-induced Ptgs2, but it did not affect Tnf or Mmp9. In OD-21 cells, Papacárie Duo® inhibited Runx2 and Ibsp expression, but stimulated Spp1 expression. Papain-based gel presented a concentration dependent cytotoxicity, without affecting cell viability, for dental pulp cells and macrophages. Interestingly, the gel presented an inhibitory effect on pulp cell differentiation but modulated the activation of macrophages stimulated with LPS. We speculate that in dental pulp tissue, Papacárie Duo® would impair reparative dentinogenesis but could activate macrophages to perform their role in defense and inflammation.


2018 ◽  
Vol 51 (10) ◽  
pp. 1149-1158 ◽  
Author(s):  
A. Milosavljević ◽  
Lj. DJukić ◽  
B. Toljić ◽  
J. Milašin ◽  
B. DŽeletović ◽  
...  

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