Abstract
Heart disease is one of the leading death causes in developed countries. To facilitate heart rehabilitation, engineered cardiac implantation has emerged as a promising alternative to organ transplantation. Currently there is no quantitative standard to ensure the safety and functionality of the engineered cardiac tissues intended for clinical uses. In anticipation of the clinical application of the engineered cardiac tissues to heart disease patients, a suite of methods is assembled to evaluate the mechanical characteristics critical to cardiac functions, including contractility, viscoelasticity, and dynamic stress distribution. As a proof of concept, 3D bioprinted cardiac tissues derived from human induced pluripotent stem cells are tested. First, the engineered cardiac tissues labeled with particles are recorded and tracked to determine spatially and temporally variable contraction forces. Viscoelastic properties are measured using magnetic tweezers. The results are used to compute 3D force and stress distribution over the engineered tissue by finite element method. In summary, a framework is developed to assess clinical-grade engineered cardiac tissues and determine the appropriate value ranges suitable for implantation. The results relating contractility, intrinsic mechanical properties, and stress distribution in the engineered tissue, can also inform better design for future fabrication of engineered tissues.
| Original language | English (US) |
|---|---|
| Article number | 1800251 |
| Journal | Advanced Biosystems |
| Volume | 2 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 1 2018 |
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Keywords
- engineered cardiac tissues
- hiPSCs
- implantation
- mechanical measurement
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Biomaterials
- Biomedical Engineering
Cite this
Mechanical Characterization of hiPSC-Derived Cardiac Tissues for Quality Control. / Park, Seungman; Lui, Cecillia; Jung, Wei Hung; Maity, Debonil; Ong, Chin Siang; Bush, Joshua; Maruthamuthu, Venkat; Hibino, Narutoshi; Chen, Yun.
In: Advanced Biosystems, Vol. 2, No. 12, 1800251, 01.12.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Mechanical Characterization of hiPSC-Derived Cardiac Tissues for Quality Control
AU - Park, Seungman
AU - Lui, Cecillia
AU - Jung, Wei Hung
AU - Maity, Debonil
AU - Ong, Chin Siang
AU - Bush, Joshua
AU - Maruthamuthu, Venkat
AU - Hibino, Narutoshi
AU - Chen, Yun
PY - 2018/12/1
Y1 - 2018/12/1
N2 - Heart disease is one of the leading death causes in developed countries. To facilitate heart rehabilitation, engineered cardiac implantation has emerged as a promising alternative to organ transplantation. Currently there is no quantitative standard to ensure the safety and functionality of the engineered cardiac tissues intended for clinical uses. In anticipation of the clinical application of the engineered cardiac tissues to heart disease patients, a suite of methods is assembled to evaluate the mechanical characteristics critical to cardiac functions, including contractility, viscoelasticity, and dynamic stress distribution. As a proof of concept, 3D bioprinted cardiac tissues derived from human induced pluripotent stem cells are tested. First, the engineered cardiac tissues labeled with particles are recorded and tracked to determine spatially and temporally variable contraction forces. Viscoelastic properties are measured using magnetic tweezers. The results are used to compute 3D force and stress distribution over the engineered tissue by finite element method. In summary, a framework is developed to assess clinical-grade engineered cardiac tissues and determine the appropriate value ranges suitable for implantation. The results relating contractility, intrinsic mechanical properties, and stress distribution in the engineered tissue, can also inform better design for future fabrication of engineered tissues.
AB - Heart disease is one of the leading death causes in developed countries. To facilitate heart rehabilitation, engineered cardiac implantation has emerged as a promising alternative to organ transplantation. Currently there is no quantitative standard to ensure the safety and functionality of the engineered cardiac tissues intended for clinical uses. In anticipation of the clinical application of the engineered cardiac tissues to heart disease patients, a suite of methods is assembled to evaluate the mechanical characteristics critical to cardiac functions, including contractility, viscoelasticity, and dynamic stress distribution. As a proof of concept, 3D bioprinted cardiac tissues derived from human induced pluripotent stem cells are tested. First, the engineered cardiac tissues labeled with particles are recorded and tracked to determine spatially and temporally variable contraction forces. Viscoelastic properties are measured using magnetic tweezers. The results are used to compute 3D force and stress distribution over the engineered tissue by finite element method. In summary, a framework is developed to assess clinical-grade engineered cardiac tissues and determine the appropriate value ranges suitable for implantation. The results relating contractility, intrinsic mechanical properties, and stress distribution in the engineered tissue, can also inform better design for future fabrication of engineered tissues.
KW - engineered cardiac tissues
KW - hiPSCs
KW - implantation
KW - mechanical measurement
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UR - http://www.scopus.com/inward/citedby.url?scp=85065054401&partnerID=8YFLogxK
U2 - 10.1002/adbi.201800251
DO - 10.1002/adbi.201800251
M3 - Article
AN - SCOPUS:85065054401
VL - 2
JO - Advanced Biosystems
JF - Advanced Biosystems
SN - 2366-7478
IS - 12
M1 - 1800251
ER -