Since the birth of tissue engineering, various engineered tissues have been developed. However, only engineered tissue with simple and homogeneous tissue structures commercialized to be used in clinical applications. Since the functional engineered ti...
Since the birth of tissue engineering, various engineered tissues have been developed. However, only engineered tissue with simple and homogeneous tissue structures commercialized to be used in clinical applications. Since the functional engineered tissue has a complex structure with different properties, it is too hard to develop during in-vitro tissue culture. In order to form the complex structure of tissue during in-vitro culture, it is necessary to apply various stimuli independently.
In this study, we developed a tissue culture system to apply the complex stimulation for inducing various properties of engineered tissue. Multi-axis mechanical training system is capable to apply compression and tension with 10 um resolution independently. The compressive force and tensile force of each tissue sample can be measured during the mechanical stimulation in real-time. Additionally, it can monitor the positions of the compressive head and tensile jig. When we applied the same mechanical stimulation to the samples with only cells and ECM components, and other samples included fabric scaffold, they produced different responses to the applied mechanical stimulation.
Also, we developed a culture vessel capable of applying static tension and electrical stimulation simultaneously. We controlled the injection current using calibration resistors to generate a similar current density for each culture vessel. The current density also could be monitored by software to maintain electrical stimulation.
Using the developed tissue culture system for complex stimulation, we could expect to develop a functional engineered tissue with multiple physical properties.