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タイトル: | Computational framework for analyzing flow-induced strain on osteocyte as modulated by microenvironment |
著者: | Kameo, Yoshitaka Ozasa, Masahiro Adachi, Taiji https://orcid.org/0000-0001-5280-4156 (unconfirmed) |
著者名の別形: | 亀尾, 佳貴 小笹, 正裕 安達, 泰治 |
キーワード: | Osteocyte Canaliculus Interstitial fluid flow Mechanosensing Fluid–structure interaction simulation |
発行日: | Feb-2022 |
出版者: | Elsevier BV |
誌名: | Journal of the Mechanical Behavior of Biomedical Materials |
巻: | 126 |
論文番号: | 105027 |
抄録: | Osteocytes buried in bone matrix are major mechanosensory cells that regulate bone remodeling in response to interstitial fluid flow in a lacuno-canalicular porosity. To gain an understanding of the mechanism of osteocyte mechanosensing, it is important to be able to evaluate the local strain on the osteocyte process membrane induced by the interstitial fluid flow. The microenvironment of the osteocytes, including the pericellular matrix (PCM) and canalicular ultrastructure, is a key modulator of the flow-induced strain on the osteocyte process membrane because it produces heterogeneous flow patterns in the pericellular space. To investigate the effect of changes in the microenvironment of osteocytes on the flow-induced strain, we developed a novel computational framework for analyzing the fluid–structure interaction. Computer simulations based on the proposed framework enabled evaluation of the spatial distribution of flow-induced strain on the osteocyte process membrane according to changes in the PCM density and canalicular curvature. The simulation results reveal that a decrease in PCM density and an increase in canalicular curvature, each of which is associated with aging and bone disease, have the notable effect of enhancing local flow-induced strain on the osteocyte process membrane. We believe that the proposed computational framework is a promising framework for investigating cell-specific mechanical stimuli and that it has the potential to accelerate the mechanobiological study of osteocytes by providing a deeper understanding of their mechanical environment in living bone tissue. |
著作権等: | © 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the Creative Commons Attribution 4.0 International license. |
URI: | http://hdl.handle.net/2433/274519 |
DOI(出版社版): | 10.1016/j.jmbbm.2021.105027 |
PubMed ID: | 34920322 |
出現コレクション: | 学術雑誌掲載論文等 |
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