Hybrid Implants Based on Calcium–Magnesium Silicate Ceramics Diopside as a Carrier of Recombinant BMP-2 and rS1/9 Recombinant Spidroin as a Scaffold: Reparative Osteogenesis in a Mouse Craniotomy Model

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发表日期：

2024年12月1日

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A. S. Karyagina,
V. G. Bogush,
P. A. Orlova,
L. I. Davydova,
A. V. Zhulina,
T. M. Grunina,
N. V. Strukova,
M. S. Generalova,
M. S. Krivozubov,
S. E. Cheperegin,
A. A. Ramonova,
A. V. Gromov

摘要

Abstract—Calcium–magnesium silicate ceramic diopside is an effective carrier of BMP-2 and, in combination with a bovine demineralized bone matrix as a scaffold, can induce effective reparative osteogenesis on the model of craniotomy in mice. It was of interest to investigate the efficacy of combined usage of BMP-2-loaded diopside with recombinant spidroins for the induction of osteogenesis. For this purpose, porous implants were prepared based on recombinant spidroin rS1/9, into which BMP-2 was introduced either as BMP-2 loaded diopside particles suspended in hyaluronic acid or by adsorption. Neo-osteogenesis with bone marrow formation occurred in both groups with BMP-2, most pronounced in the group with BMP-2 and diopside on the model of critical size defects in the cranium in mice. Thus, the use of 3D scaffolds based on recombinant spidroin with BMP2-loaded diopside particles in hyaluronic acid can lead to effective induction of osteogenesis. The spidroin scaffolds themselves represent a sufficiently effective carrier for BMP-2.