Association of high HIF-1α levels in serous periodontitis with external root resorption by the NFATc1 pathway

Whether external root resorption is associated with hypoxia in the periodontal ligaments of teeth with severe periodontitis remains unclear. Hypoxia inducible factor-1α (HIF-1α) expression and external resorption sites in the periodontal ligaments of these teeth were observed to elaborate upon the r...

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Bibliographic Details
Published in:Journal of molecular histology 2020-12, Vol.51 (6), p.649-658
Main Authors: Xiao, Changjie, Bai, Guangliang, Du, Yanmei, Jiang, Huan, Yu, Xijiao
Format: Article
Language:English
Subjects:
Biomedical and Life Sciences
Biomedicine
Bone marrow
Bone resorption
Cell Biology
Developmental Biology
Gum disease
Hypoxia
Hypoxia-inducible factor 1a
Immunofluorescence
Life Sciences
Ligaments
Lipopolysaccharides
Lymphocytes T
Macrophages
Original Paper
Osteoclastogenesis
Periodontitis
Root resorption
Western blotting
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Summary:Whether external root resorption is associated with hypoxia in the periodontal ligaments of teeth with severe periodontitis remains unclear. Hypoxia inducible factor-1α (HIF-1α) expression and external resorption sites in the periodontal ligaments of these teeth were observed to elaborate upon the relationship between hypoxia and external root resorption in severe periodontitis. Histological analysis was performed to observe external root resorption. The expressions of HIF-1α and Nuclear factor-activated T cells c1 (NFATc1) in the periodontal ligaments were detected by immunofluorescence, western blotting and real-time PCR. Bone marrow macrophages (BMMs) were stimulated by Porphyromonas gingivalis lipopolysaccharide (Pg.LPS) and cultured under hypoxia in vitro. High levels of HIF-1α and NFATc1 were detected in severe periodontitis. HIF-1α positive-cells were observed in the external resorption sites. Hypoxia promoted Pg.LPS-stimulated osteoclastogenesis of BMMs and bone resorption by the NFATc1 pathway. Increased HIF-1α in severe periodontitis are associated with external root resorption by the NFATc1 pathway.
ISSN:1567-2379
1567-2387
DOI:10.1007/s10735-020-09911-7