A preliminary study on the autophagy level of human periodontal ligament cells regulated by nicotine / 华西口腔医学杂志
West China Journal of Stomatology
;
(6): 198-202, 2017.
Article
Dans Chinois
| WPRIM
| ID: wpr-357495
ABSTRACT
<p><b>OBJECTIVE</b>To explore the effect of nicotine on the autophagy level of human periodontal ligament cells (hPDLCs).</p><p><b>METHODS</b>Periodontal tissues collected from premolars for orthodontic treatment reasons were used to culture hPDLCs. Western blot analysis was performed to test the most optimal time and concentration of nicotine on the autophagy level of the hPDLCs. Transmission electron microscope and immunofluorescence observation were carried out to detect the form of autophagosomes and expression of autophagy related protein LC3 in hPDLCs under this optimal condition.</p><p><b>RESULTS</b>Protein expression of LC3Ⅱ was up regulated with the 12 h nicotine stimulating. Besides that, the up regulation of the protein expression of LC3Ⅱ was concentration dependent and nicotine with a concentration of 1×10⁻⁵ mol·L⁻¹ was the most optimal condition. Transmission electron microscope and immunofluorescence observations indicated that nicotine would activate the autophagy level of hPDLCs by increasing the number of autophagosomes and up regulating the expression of autophagy related protein LC3.</p><p><b>CONCLUSIONS</b>Nicotine could increase autophagy level of hPDLCs, thus affecting the occurrence and development of smoking related periodontitis.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Desmodonte
/
Parodontite
/
Pharmacologie
/
Autophagie
/
Régulation positive
/
Cellules cultivées
/
Technique de Western
/
Agonistes nicotiniques
/
Techniques de culture cellulaire
/
Protéines associées aux microtubules
Limites du sujet:
Humains
langue:
Chinois
Texte intégral:
West China Journal of Stomatology
Année:
2017
Type:
Article
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