Journal
JOURNAL OF BIOMECHANICS
Volume 47, Issue 9, Pages 2080-2087Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jbiomech.2013.10.009
Keywords
Tissue engineering; Interposition graft; Mouse model; Constrained mixture theory; Inflammation; Mechanosensing
Categories
Funding
- [R01-HL098228]
- [5T32-HL098069]
- [R21-HL107768]
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Advances in vascular tissue engineering have been tremendous over the past 15 years, yet there remains a need to optimize current constructs to achieve vessels having true growth potential. Toward this end, it has been suggested that computational models may help hasten this process by enabling time-efficient parametric studies that can reduce the experimental search space. In this paper, we present a first generation computational model for describing the in vivo development of a tissue engineered vein from an implanted polymeric scaffold. The model was motivated by our recent data on the evolution of mechanical properties and microstructural composition over 24 weeks in a mouse inferior vena cava interposition graft. It is shown that these data can be captured well by including both an early inflammatory-mediated and a subsequent mechano-mediated production of extracellular matrix. There remains a pressing need, however, for more data to inform the development of next generation models, particularly the precise transition from the inflammatory to the mechanobiological dominated production of matrix having functional capability. (C) 2013 Elsevier Ltd. All rights reserved.
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