Aging effect of osteoprotegerin and receptor activator of nuclear factor-κB ligand expression in human periodontal ligament cells under continuous static pressure.
- Author:
Jie WU
1
;
Zhanqin CUI
1
;
Yu HAN
2
;
Wenjing LI
3
Author Information
- Publication Type:Journal Article
- Keywords: aging; continuous static pressure; human periodontal ligament cells; orthodontics; osteoprotege-rin; receptor activator of nuclear factor-κB ligand
- MeSH: Humans; Adolescent; Young Adult; Adult; Osteoprotegerin; RANK Ligand/pharmacology*; Periodontal Ligament/metabolism*; Cells, Cultured; Aging
- From: West China Journal of Stomatology 2022;40(6):654-661
- CountryChina
- Language:English
-
Abstract:
OBJECTIVES:The expression of osteoprotegerin (OPG) and receptor activator of nuclear factor-κB ligand (RANKL) in human periodontal ligament cells (HPDLCs) was investigated by cell culture under continuous static pressure.
METHODS:HPDLCs were primarily cultured by tissue explant method and divided into three groups: group A (13-18 years old), group B (19-29 years old), and group C (30-44 years old). CCK-8 was used to detect the proliferation of HPDLCs. The senescence of HPDLCs was detected by senescence-associated β-galactosidase staining. Cells in the three groups were respectively given 0, 1.5, 3, 6, 12, 24, 48, and 72 h of continuous static pressure in vitro. The expression of OPG and RANKL in the supernatant was detected by enzyme-linked immunosorbent assay.
RESULTS:After continuous static pressure in vitro for stimulation, the expression of OPG and RANKL changed. The expression of OPG increased with time and age (P<0.01). The expression of RANKL increased with time and decreased with age (P<0.01). The ratio of OPG/RANKL initially decreased, increased with time, and then continued to rise with age (P<0.01).
CONCLUSIONS:Aging could increase the expression of OPG and the ratio of OPG/RANKL and decrease the expression of RANKL in HPDLCs under continuous static pressure in vitro.
