Effects of KCNQ1OT1 on lipopolysaccharide-induced proliferation and osteogenic differentiation of human periodontal ligament stem cells by targeting miR-218
10.12007/j.issn.0258-4646.2025.06.014
- VernacularTitle:KCNQ1OT1靶向miR-218对脂多糖诱导的人牙周膜干细胞增殖和成骨分化的影响
- Author:
Siqing WANG
1
;
Maoqi ZHANG
1
;
Tingting HU
1
;
Fang YE
1
Author Information
1. 南昌大学附属口腔医院牙周科,南昌 330000
- Publication Type:Journal Article
- Keywords:
long noncoding RNA;
KCNQ1 overlapping transcript 1;
miR-218;
human periodontal ligament stem cell;
osteogenic diffe-rentiation;
lipopolysaccharide
- From:
Journal of China Medical University
2025;54(6):559-564
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effects of the long noncoding RNA(lncRNA),KCNQ1 overlapping transcript 1(KCNQ1OT1),on lipopolysaccharide(LPS)-induced proliferation and osteogenic differentiation of human periodontal ligament stem cells(hPDLSCs)by targeting miR-218.Methods HPDLSCs were cultured in vitro and randomly assigned into hPDLSC,LPS,pcDNA-KCNQ1OT1,pcDN A,miR-218,or miR-NC groups.Cell proliferation and alizarin red staining of the cells were observed.The activity of alkaline phos-phatase,the expression of KCNQ1OT1 and miR-218,the levels of interleukin-1 β(IL-1β),interleukin-6(IL-6),and tumor necrosis factorα(TNF-α),and the expression of osteopontin(OPN),osteocalcin(OCN),Runt-related transcription factor 2(RUNX2),and bone morpho-genetic protein 2(BMP2)in cells were detected.A dual luciferase assay was performed to verify the relationship between KCNQ1OT1 and miR-218.Results Compared with the hPDLSC group,the cell proliferation rate,the alkaline phosphatase activity,and the expression of KCNQ1OT1,OPN,OCN,RUNX2,and BMP2 were significantly decreased,while the expression of miR-218 and the levels of IL-1β,IL-6,and TNF-α were significantly increased in the LPS group(P＜0.05).Compared with the pcDNA-KCNQ1OT1 group,all the above indicators had the same trend in the miR-218 group(P＜0.05).Compared with the LPS group,the cell proliferation rate,the alkaline phos-phatase activity,and the expression of KCNQ1OT1,OPN,OCN,RUNX2,and BMP2 were significantly increased,while the expression of miR-218 and the levels of IL-1β,IL-6,and TNF-α were significantly decreased in the pcDNA-KCNQ1OT1 group(P＜0.05).There was a targeting relationship between KCNQ1OT1 and miR-218.The luciferase activity in the KCNQ1OT1-WT+miR-218 group was significantly lower than that in the KCNQ1OT1-WT+miR-NC group(P＜0.05).Conclusion KCNQ1OT1 can downregulate miR-218 and promote LPS-induced proliferation and osteogenic differentiation of hPDLSCs.
