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JRM Vol.30 No.5 pp. 819-826
doi: 10.20965/jrm.2018.p0819
(2018)

Paper:

Analysis of Cell Spheroid Morphological Characteristics Using the Spheroid Morphology Evaluation System

Takeshi Shimoto*1, Xiu-Ying Zhang*2, Shizuka Akieda*3, Atsushi Ishikawa*4, Hidehiko Higaki*4, and Koichi Nakayama*5

*1Fukuoka Institute of Technology
3-30-1 Wajiro-higashi, Higashi-ku, Fukuoka 811-0295, Japan

*2Kyushu University
3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan

*3Cyfuse Biomedical K.K.
7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan

*4Kyushu Sangyo University
2-3-1 Matsukadai, Higashi-ku, Fukuoka 813-8503, Japan

*5Saga University
5-1-1 Nabeshima, Saga 849-8501, Japan

Received:
March 15, 2018
Accepted:
September 3, 2018
Published:
October 20, 2018
Keywords:
cell-construct, spheroid, rapid prototyping system, tissue engineering, regenerative medicine
Abstract
Analysis of Cell Spheroid Morphological Characteristics Using the Spheroid Morphology Evaluation System

Spheroid morphological evaluation system

Our research group established a technology for forming three-dimensional cell constructs to regenerate osteochondro cells without scaffolding. The established technology employed spheroids to form cell constructs. We also developed a method for arranging spheroids in arbitrary positions to form cell constructs in complex shapes. However, we could only form cell constructs as expected when the formed spheroids were the appropriate sizes. This study, therefore, aimed to chronologically analyze the spheroid morphological characteristics of rabbit mechanical stem cells using the developed spheroid morphological evaluation system. We set the numbers of cells/wells as 2 × 104, 3 × 104, 4 × 104, 5 × 104, 6 × 104, and 7 × 104 and the passage number as 7. Further, we observed the cultured spheroids every 24 hours after seeding for five days. The analysis enabled us to specify an optimal range for the numbers of cells required to form spheroids with high degrees of circularity. We could also control the formed spheroid sizes by adjusting the cell count and culturing time.

Cite this article as:
T. Shimoto, X. Zhang, S. Akieda, A. Ishikawa, H. Higaki, and K. Nakayama, “Analysis of Cell Spheroid Morphological Characteristics Using the Spheroid Morphology Evaluation System,” J. Robot. Mechatron., Vol.30, No.5, pp. 819-826, 2018.
Data files:
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Last updated on Nov. 16, 2018