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Compressive Force Strengthened the Pro-inflammatory Effect of Zoledronic Acid on Il-1ß Stimulated Human Periodontal Fibroblasts

Overview
Specialty Dentistry
Date 2020 Nov 10
PMID 33169272
Citations 2
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Abstract

Objectives: The number of patients in dentistry taking bisphosphonates (BP) increases every year. There are only little data about the influence of biomechanical stress due to orthodontic treatment and periodontal inflammation in BP patients. This study focused on the effects of the induced inflammation by IL-1ß in compressed human periodontal ligament fibroblasts (HPdLF) exposed to the nitrogen-containing BP zoledronate in vitro.

Materials And Methods: HPdLF were incubated with 5 μmol/l zoledronate and 10 ng/ml IL-1ß for 48 h. In the last 3 h, cells were exposed to a compressive, centrifugal force of 34.9 g/cm. Cell viability was analyzed directly after the compressive force by MTT assay. Gene expression of COX-2 and IL-6 was investigated using quantitative qRT-PCR. PGE-2 and IL-6 protein secretion were measured via ELISA.

Results: The cell viability of HPdLF was not affected. Without inflammatory pre-stimulation, COX-2 expression was increased by compression and zoledronate. IL-6 expression was increased under compression. On secretion level, the combination of compression and zoledronate induced a slightly increase of IL-6 secretion. In contrast, inflammatory pre-stimulation strengthened the compressive upregulation of COX-2, as well as induced a higher PGE-2 secretion. Further addition of zoledronate to pre-stimulated cells additionally strengthened the compression-induced upregulation of COX-2 and IL-6 expression as well as protein secretion compared to all other groups.

Conclusions: Biomechanical stress might trigger a pro-inflammatory potential of BP further enhanced in the presence of an inflammatory pre-stimulation.

Clinical Relevance: To prevent excessive host inflammatory responses, occlusal overloading and mechanical stress due to orthodontic treatment should be avoided in BP patients with untreated periodontitis.

Citing Articles

Effect of the antirheumatic medication methotrexate (MTX) on biomechanical compressed human periodontal ligament fibroblasts (hPDLFs).

Welte-Jzyk C, Plumer V, Schumann S, Pautz A, Erbe C BMC Oral Health. 2024; 24(1):329.

PMID: 38475789 PMC: 10936030. DOI: 10.1186/s12903-024-04092-1.


GDF15 Modulates the Zoledronic-Acid-Induced Hyperinflammatory Mechanoresponse of Periodontal Ligament Fibroblasts.

Nitzsche A, Hennig C, von Brandenstein K, Doding A, Schulze-Spate U, Symmank J Cells. 2024; 13(2).

PMID: 38247838 PMC: 10814077. DOI: 10.3390/cells13020147.

References
1.
Van Poznak C . The use of bisphosphonates in patients with breast cancer. Cancer Control. 2003; 9(6):480-9. DOI: 10.1177/107327480200900605. View

2.
Wysowski D, Greene P . Trends in osteoporosis treatment with oral and intravenous bisphosphonates in the United States, 2002-2012. Bone. 2013; 57(2):423-8. DOI: 10.1016/j.bone.2013.09.008. View

3.
Herrera I, Kam Y, Whittaker T, Champion M, Ajlan R . Bisphosphonate-induced orbital inflammation in a patient on chronic immunosuppressive therapy. BMC Ophthalmol. 2019; 19(1):51. PMC: 6374910. DOI: 10.1186/s12886-019-1063-8. View

4.
Pozzi S, Vallet S, Mukherjee S, Cirstea D, Vaghela N, Santo L . High-dose zoledronic acid impacts bone remodeling with effects on osteoblastic lineage and bone mechanical properties. Clin Cancer Res. 2009; 15(18):5829-39. DOI: 10.1158/1078-0432.CCR-09-0426. View

5.
Diel I, Bergner R, Grotz K . Adverse effects of bisphosphonates: current issues. J Support Oncol. 2008; 5(10):475-82. View