Osteoformation potential of an allogenic partially demineralized bone matrix in critical-size defects in the rat calvarium

Autor: Henri Michel Benoist, Ahmad Moustapha Diallo, Michel Boissière, Raphael Bardonnet, Morad Bensidhoum, Emmanuel Pauthe, Hervé Petite, Fani Anagnostou, Solène Rota
Přispěvatelé: CY Cergy Paris Université (CY), Equipe de recherche sur les relations matrice extracellulaire-cellules (ERRMECe), Fédération INSTITUT DES MATÉRIAUX DE CERGY-PONTOISE (I-MAT), CY Cergy Paris Université (CY)-CY Cergy Paris Université (CY), Biologie, Bioingénierie et Bioimagerie Ostéo-articulaires (B3OA (UMR_7052)), École nationale vétérinaire d'Alfort (ENVA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Service d’Odontologie [CHU Pitié-Salpêtrière], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-CHU Pitié-Salpêtrière [AP-HP], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)
Rok vydání: 2020
Předmět:
Zdroj: Materials Science and Engineering: C
Materials Science and Engineering: C, Elsevier, 2021, 127, pp.112207. ⟨10.1016/j.msec.2021.112207⟩
ISSN: 1873-0191
0928-4931
DOI: 10.1016/j.msec.2021.112207⟩
Popis: International audience; Allogenic demineralized bone matrix has been developed as a reliable alternative to the autologous bone graft. In the present study, we assessed the osteoformation potential of a partially demineralized bone matrix (PDBM) in a paste form obtained without an added carrier. This formulation included the preparation of cancelous bone from femoral heads after decellularision, delipidation, demineralization in HCl and autoclaving at 121 • C. Structural and biochemical characteristics of PDBM were determined using FTIR (Fourier transform infrared spectroscopy), hydroxyproline, DNA content assays, and optical ellipsometry. The osteoformation potential was evaluated in 8-, 6-, and 4-mm-diameter rat-calvarial bone defects by in vivo micro-CT analysis, performed immediately after surgery on days 0, 15, 30, 45, and 60. Moreover, histological and histomorphometric analyses were done on day 60. PDBM was compared to cancelous bone powder (BP) before its partial demineralization. The expression levels of selected inflammation-, angiogenesis-, and bone-related genes were also investigated by RT-PCR, 3, 7, and 14 days after surgery. Compared to the control group, the PDBM group exhibited a significant increase (p < 0.05) in radiopacity in 8-mm-and 6-mm-diameter defects at all time points tested. On day 60, the amount of newly-formed bone was greater (16 and 1.6 folds; p < 0.001; respectively) compared to that in control defects. No bone formation was observed in defects filled with BP regardeless of the size. In 8-mm-diameter defect, PDBM was effective enough to induce the upregulation of genes pertinent to inflammation (i.e., TNFα, IL-6, and IL-8), angiogenesis (i.e., VEGF, VWF), and osteogenesis (ALP, RUNX2, BGLAP, SP7) by day 3 after surgery. This study showed that the tested PDBM deeply influences the early critical events involved in bone regeneration and exhibits efficient osteoformation capacity, making it an attractive graft option for treating defects in periodontal and maxillofacial areas.
Databáze: OpenAIRE
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