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Cells. 2019 Apr 30;8(5). pii: E399. doi: 10.3390/cells8050399.

Global Responses of Il-1β-Primed 3D Tendon Constructs to Treatment with Pulsed Electromagnetic Fields.

Author information

1
Institute of Tendon and Bone Regeneration, Paracelsus Medical University-Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria. renate.gehwolf@pmu.ac.at.
2
Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria. renate.gehwolf@pmu.ac.at.
3
Institute of Tendon and Bone Regeneration, Paracelsus Medical University-Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria. b.schwemberger@pmu.ac.at.
4
Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria. b.schwemberger@pmu.ac.at.
5
Institute of Tendon and Bone Regeneration, Paracelsus Medical University-Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria. m.jessen@stud.uni-heidelberg.de.
6
Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria. m.jessen@stud.uni-heidelberg.de.
7
Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, German Red Cross Blood Donor Service Baden-Württemberg-Hessen gGmbH, Heidelberg University, 68167 Mannheim, Germany. m.jessen@stud.uni-heidelberg.de.
8
Regenerative, Modular & Developmental Engineering Laboratory (REMODEL); Science Foundation Ireland Centre for Research in Medical Devices (CÚRAM) National University of Ireland Galway; H91 W2TY Galway, Ireland. stefanie.korntner@nuigalway.ie.
9
Institute of Tendon and Bone Regeneration, Paracelsus Medical University-Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria. andrea.wagner@pmu.ac.at.
10
Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria. andrea.wagner@pmu.ac.at.
11
Institute of Tendon and Bone Regeneration, Paracelsus Medical University-Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria. christine.lehner@pmu.ac.at.
12
Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria. christine.lehner@pmu.ac.at.
13
Institute of Tendon and Bone Regeneration, Paracelsus Medical University-Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria. nadja.weissenbacher@pmu.ac.at.
14
Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria. nadja.weissenbacher@pmu.ac.at.
15
Institute of Tendon and Bone Regeneration, Paracelsus Medical University-Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria. herbert.tempfer@pmu.ac.at.
16
Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria. herbert.tempfer@pmu.ac.at.
17
Institute of Tendon and Bone Regeneration, Paracelsus Medical University-Spinal Cord Injury & Tissue Regeneration Center Salzburg, 5020 Salzburg, Austria. andreas.traweger@pmu.ac.at.
18
Austrian Cluster for Tissue Regeneration, 1200 Vienna, Austria. andreas.traweger@pmu.ac.at.

Abstract

Tendinopathy is accompanied by a cascade of inflammatory events promoting tendon degeneration. Among various cytokines, interleukin-1β plays a central role in driving catabolic processes, ultimately resulting in the activation of matrix metalloproteinases and a diminished collagen synthesis, both of which promote tendon extracellular matrix degradation. Pulsed electromagnetic field (PEMF) therapy is often used for pain management, osteoarthritis, and delayed wound healing. In vitro PEMF treatment of tendon-derived cells was shown to modulate pro-inflammatory cytokines, potentially limiting their catabolic effects. However, our understanding of the underlying cellular and molecular mechanisms remains limited. We therefore investigated the transcriptome-wide responses of Il-1β-primed rat Achilles tendon cell-derived 3D tendon-like constructs to high-energy PEMF treatment. RNASeq analysis and gene ontology assignment revealed various biological processes to be affected by PEMF, including extracellular matrix remodeling and negative regulation of apoptosis. Further, we show that members of the cytoprotective Il-6/gp130 family and the Il-1β decoy receptor Il1r2 are positively regulated upon PEMF exposure. In conclusion, our results provide fundamental mechanistic insight into the cellular and molecular mode of action of PEMF on tendon cells and can help to optimize treatment protocols for the non-invasive therapy of tendinopathies.

KEYWORDS:

Il-1β; RNA-Seq; apoptosis; decoy receptor Il1r2; pulsed electromagnetic field (PEMF); repetitive peripheral magnetic stimulation (rPMS); tendinopathy; tendon

PMID:
31052237
PMCID:
PMC6562657
DOI:
10.3390/cells8050399
[Indexed for MEDLINE]
Free PMC Article

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