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Konishi S, Hashimoto T, Nakabuchi T, Ozeki T, Kajita H. Cell and tissue system capable of automated culture, stimulation, and monitor with the aim of feedback control of organs-on-a-chip. Sci Rep 2021; 11:2999. [PMID: 33542247 PMCID: PMC7862322 DOI: 10.1038/s41598-020-80447-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 12/21/2020] [Indexed: 12/25/2022] Open
Abstract
This paper presents progress in the automation of cell and tissue systems and attempts toward the in situ feedback control of organs-on-a-chip. Our study aims to achieve feedback control of a cell and tissue system by a personal computer (PC), whereas most studies on organs-on-a-chip focus on the automation of status monitoring. The implemented system is composed of subsystems including automated culture, stimulation, and monitoring. The monitoring function provides imaging as well as sampling and dispensing in combination with an external analyzer. Individual subsystems can be combined accordingly. First, monitoring of skeletal muscle (SM) and adipose tissues using this system was demonstrated. The highlight of this paper is the application of the system to the feedback control of the lipid droplet (LD) size, where biochemical stimulation using insulin and adrenaline is controlled by a PC according to the obtained LD imaging data. In this study, the system demonstrated its function of maintaining the desired size of LDs. Our results expand the possibility of PC-controllable cell and tissue systems by addressing the challenge of feedback control of organs-on-a-chip. The PC-controllable cell and tissue systems will contribute to living systems-on-a-chip based on homeostasis phenomena involving interactions between organs or tissues.
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Affiliation(s)
- Satoshi Konishi
- Department of Mechanical Engineering, College of Science and Engineering, Ritsumeikan University, Kusatsu, 525-8577, Japan. .,Graduate Course of Science and Engineering, Ritsumeikan University, Kusatsu, 525-8577, Japan. .,Ritsumeikan Global Innovation Research Organization, Ritsumeikan University, Kusatsu, 525-8577, Japan.
| | - Takeshi Hashimoto
- Ritsumeikan Global Innovation Research Organization, Ritsumeikan University, Kusatsu, 525-8577, Japan.,College of Sport and Health Science, Ritsumeikan University, Kusatsu, 525-8577, Japan
| | - Tsubasa Nakabuchi
- Graduate Course of Science and Engineering, Ritsumeikan University, Kusatsu, 525-8577, Japan
| | - Takatoshi Ozeki
- Graduate Course of Science and Engineering, Ritsumeikan University, Kusatsu, 525-8577, Japan
| | - Hiroki Kajita
- Graduate Course of Science and Engineering, Ritsumeikan University, Kusatsu, 525-8577, Japan
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