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Scaffolds for engineering smooth muscle under cyclic mechanical strain conditions

Cited 147 time in Web of Science Cited 159 time in Scopus
Authors

Byung-Soo Kim; David J. Mooney

Issue Date
2000-06
Publisher
ASME-AMER SOC MECHANICAL ENG
Citation
JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME, Vol.122 No.3, pp.210-215
Abstract
Cyclic mechanical strain has been demonstrated to enhance the development and function of engineered smooth muscle (SM) tissues, but appropriate scaffolds for engineering tissues under conditions of cyclic strain are currently lacking. These scaffolds must display elastic types commonly utilized in tissue engineering applications in order to select scaffolds that exhibit elastic properties under appropriate cyclic strain conditions. The ability of the scaffolds to promote an appropriate SMC phenotype in engineered SM tissues under cyclic strain conditions was subsequently analyzed Poly(L-lactic acid)-bonded polyglycolide fiber-based scaffolds and type I collagen sponges exhibited partially elastic mechanical properties under cyclic strain conditions, although the synthetic polymer. scaffolds demonstrated significant permanent deformation after extended times of cyclic strain application. SM tissues engineered with type I collagen sponges subjected to cyclic strain were found to contain mol-e elastin than control tissues, and the SMCs in these tissues exhibited a contractile phenotype. In contrast, SMCs in control tissues exhibited a structure more consistent with the nondifferentiated synthetic phenotype. These studies indicate the appropriate choice of a scaffold for engineering tissues in a mechanically dynamic environment is dependent on the time frame of the mechanical stimulation?, an elastic scaffolds allow Sor mechanically directed control of cell phenotype in engineered tissues.
ISSN
0148-0731
URI
https://hdl.handle.net/10371/204467
DOI
https://doi.org/10.1115/1.429651
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  • College of Engineering
  • School of Chemical and Biological Engineering
Research Area biomaterials, nanomedicine, regenerative medicine

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