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Biomimetic mineralization using matrix vesicle nanofragments
Author(s) -
Kunitomi Yosuke,
Hara Emilio Satoshi,
Okada Masahiro,
Nagaoka Noriyuki,
Kuboki Takuo,
Nakano Takayoshi,
Kamioka Hiroshi,
Matsumoto Takuya
Publication year - 2019
Publication title -
journal of biomedical materials research part a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.849
H-Index - 150
eISSN - 1552-4965
pISSN - 1549-3296
DOI - 10.1002/jbm.a.36618
Subject(s) - calvaria , intramembranous ossification , mineralization (soil science) , materials science , biomedical engineering , vesicle , in vivo , sonication , bone tissue , in vitro , biophysics , nanotechnology , anatomy , chemical engineering , chemistry , biology , biochemistry , membrane , medicine , engineering , microbiology and biotechnology , organic chemistry , nitrogen
In vitro synthesis of bone tissue has been paid attention in recent years; however, current methods to fabricate bone tissue are still ineffective due to some remaining gaps in the understanding of real in vivo bone formation process, and application of the knowledge in bone synthesis. Therefore, the objectives of this study were first, to perform a systematic and ultrastructural investigation of the initial mineral formation during intramembranous ossification of mouse calvaria from a material scientists' viewpoint, and to develop novel mineralization methods based on the in vivo findings. First, the very initial mineral deposition was found to occur at embryonic day E14.0 in mouse calvaria. Analysis of the initial bone formation process showed that it involved the following distinct steps: collagen secretion, matrix vesicle (MV) release, MV mineralization, MV rupture, and collagen fiber mineralization. Next, we performed in vitro mineralization experiments using MVs and hydrogel scaffolds. Intact MVs embedded in collagen gel did not mineralize, whereas, interestingly, MV nanofragments obtained by ultrasonication could promote rapid mineralization. These results indicate that mechanically ruptured MV membrane can be a promising material for in vitro bone tissue synthesis. © 2019 The Authors. journal Of Biomedical Materials Research Part A Published By Wiley Periodicals, Inc. J Biomed Mater Res Part A: 107A: 1021–1030, 2019.