Investigation of Sustained BMP Delivery in the Prevention of Medication-Related Osteonecrosis of the Jaw (MRONJ) in a Rat Model

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Gary I. Brierly - , Queensland University of Technology, Royal Brisbane and Women's Hospital (Autor:in)
  • Jiongyu Ren - , Queensland University of Technology (Autor:in)
  • Jeremy Baldwin - , Queensland University of Technology (Autor:in)
  • Siamak Saifzadeh - , Queensland University of Technology (Autor:in)
  • Christina Theodoropoulos - , Queensland University of Technology (Autor:in)
  • Mikhail V. Tsurkan - , Professur für Zell-Ersatz der Netzhaut in Säugetieren, Queensland University of Technology, Leibniz Institute of Polymer Research Dresden (Autor:in)
  • Anthony Lynham - , Queensland University of Technology (Autor:in)
  • Edward Hsu - , Queensland University of Technology, Royal Brisbane and Women's Hospital (Autor:in)
  • Dimitrios Nikolarakos - , Queensland University of Technology, Queensland Health (Autor:in)
  • Carsten Werner - , Center for Regenerative Therapies Dresden (CRTD), Professur für Biofunktionale Polymermaterialien (gB/IPF), Leibniz Institute of Polymer Research Dresden (Autor:in)
  • Maria A. Woodruff - , Queensland University of Technology (Autor:in)
  • Dietmar W. Hutmacher - , Queensland University of Technology (Autor:in)
  • Laura J. Bray - , Queensland University of Technology, Leibniz Institute of Polymer Research Dresden (Autor:in)

Abstract

Medication-related osteonecrosis of the jaw (MRONJ) poses an ongoing challenge for clinicians and researchers. Currently, there is a lack of preventative measures available for at-risk patients undergoing tooth extractions, especially those with prior bisphosphonate treatment due to osteoporosis or bone metastasis diagnoses. Here, these issues are addressed using a preventative tissue engineering strategy against MRONJ development. This study evaluates the efficacy of a poly(ethylene glycol)-heparin hydrogel as a tool for the delivery of arginylglycylaspartic acid (RGD) and recombinant human bone morphogenic protein-2 (rhBMP-2). Three groups of skeletally mature rats each receive two doses of intravenous zoledronic acid prior to surgery and undergo extraction of the right first mandibular molar with gingival closure. Experimental groups either have the sockets left empty, filled with hydrogel minus rhBMP-2, or filled with hydrogel plus rhBMP-2. Eight weeks postoperatively specimens are analyzed using radiological, histological, and scanning electron microscopy (SEM) techniques. µCT analysis shows increased bone formation with hydrogel/rhBMP-2 delivery compared to the empty socket. Hydrogel-treated groups display increased presence of osteocytes and increased osteoclastic action compared to the empty sockets. These results represent the first step toward improved delivery of rhBMP-2 and a potential MRONJ preventative for patients undergoing bisphosphonate treatment.

Details

OriginalspracheEnglisch
Aufsatznummer1900226
FachzeitschriftMacromolecular bioscience
Jahrgang19
Ausgabenummer11
PublikationsstatusVeröffentlicht - 1 Nov. 2019
Peer-Review-StatusJa

Externe IDs

PubMed 31549786
ORCID /0000-0003-0189-3448/work/161890302

Schlagworte

Schlagwörter

  • bisphosphonatesm, bone morphogenetic, bone regeneration, hydrogel, medication-related osteonecrosis of the jaw