Suppression of alveolar bone resorption by salubrinal in a mouse model of periodontal disease.
Life Sci
; 284: 119938, 2021 Nov 01.
Article
em En
| MEDLINE
| ID: mdl-34506837
ABSTRACT
AIMS:
The relationship between stress to endoplasmic reticulum (ER) and periodontitis has been known, and ER stress induced by Porphyromonas gingivalis results in the loss of alveolar bone. Salubrinal is a small synthetic compound and attenuates ER stress through inhibition of de-phosphorylation of eukaryotic translation initiation factor 2 alpha (eIF2α). In this study, we examined whether salubrinal attenuates periodontitis in a mouse model of experimental periodontal disease. MATERIALS ANDMETHODS:
We evaluated loss of alveolar bone and attachment levels in periodontium using micro-computed tomography (µCT) and hematoxylin-eosin (HE) staining, respectively. Furthermore, we measured osteoclast numbers using tartrate-resistant acid phosphatase (TRAP) staining and osteoblast numbers using HE staining for bone resorption and for bone formation, respectively. To examine the inhibitory effects of salubrinal against pro-inflammatory cytokines, we measured TNF-α and IL1-ß score in periodontium using immunohistostaining. KEYFINDINGS:
The results revealed that salubrinal suppressed loss of alveolar bone and attachment levels in periodontium induced by periodontitis. It decreased osteoclast numbers and increased osteoblasts. It also suppressed the expression levels of TNF-α in periodontium.SIGNIFICANCE:
These results show that salubrinal alleviates periodontitis through suppression of alveolar bone resorption and the pro-inflammatory cytokine, and promotion of the bone formation. Since salubrinal has been shown to have these beneficial effects for periodontal disease, it may provide a novel therapeutic possibility for the disease.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Tioureia
/
Perda do Osso Alveolar
/
Cinamatos
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
En
Revista:
Life Sci
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Japão