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Saito H, Kato M, Hirai K, Kiyama M, Ohyama K, Hanzawa H, Nakane A, Sekiya S, Yoshida K, Kishino A, Tsuchida A, Kimura T, Takahashi J, Takeda S. Analysis of extracellular vesicles as a potential index for monitoring differentiation of neural lineage cells from induced pluripotent stem cells. J Biosci Bioeng 2021; 132:381-389. [PMID: 34284947 DOI: 10.1016/j.jbiosc.2021.06.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 06/01/2021] [Accepted: 06/10/2021] [Indexed: 12/15/2022]
Abstract
To improve cell production efficacy, it is important to evaluate cell conditions during culture. Extracellular vesicles (EVs) secreted from various cells are involved in stem cell differentiation. As EVs carry information about their source cells, we hypothesized that they may serve as a noninvasive index of cell conditions. We evaluated changes in EV morphology, concentration, and microRNA (miRNA) and protein expression in culture supernatants during the differentiation of induced pluripotent stem cells (iPSCs) into neural lineage cells, for application in regenerative medicine for Parkinson's disease. We observed EVs (50-150 nm) in culture supernatants of iPSCs and differentiated cells. The EVs expressed the exosome markers CD63, CD81, and CD9. Throughout differentiation, the EV concentration in the supernatants decreased, and EV miRNA and protein expression changed substantially. Especially, miR-106b, involved in neural stem cell differentiation and normal brain development, was considerably downregulated. CD63 expression correlated with the CORIN-positive cell rate, which is an index of differentiation. Thus, EV concentration and miRNA and protein expression may reflect the differentiation status of iPSCs. These findings pave the way for the development of novel and sensitive cell culture monitoring methods.
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Affiliation(s)
- Hikaru Saito
- Center for Exploratory Research, Research and Development Group, Hitachi, Ltd., Kobe Center for Medical Innovation Building 201, 6-3-5 Minatojimaminamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Midori Kato
- Center for Exploratory Research, Research and Development Group, Hitachi, Ltd., Kobe Center for Medical Innovation Building 201, 6-3-5 Minatojimaminamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Kakuro Hirai
- Center for Exploratory Research, Research and Development Group, Hitachi, Ltd., Kobe Center for Medical Innovation Building 201, 6-3-5 Minatojimaminamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Masaharu Kiyama
- Center for Exploratory Research, Research and Development Group, Hitachi, Ltd., Kobe Center for Medical Innovation Building 201, 6-3-5 Minatojimaminamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Kunio Ohyama
- Center for Exploratory Research, Research and Development Group, Hitachi, Ltd., Kobe Center for Medical Innovation Building 201, 6-3-5 Minatojimaminamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Hiroko Hanzawa
- Center for Exploratory Research, Research and Development Group, Hitachi, Ltd., Kobe Center for Medical Innovation Building 201, 6-3-5 Minatojimaminamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Atsushi Nakane
- Regenerative and Cellular Medicine Kobe Center, Sumitomo Dainippon Pharma Co., Ltd., Kobe KIMEC Center Building 5th Fl., 1-5-2 Minatojimaminamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Sayaka Sekiya
- Regenerative and Cellular Medicine Kobe Center, Sumitomo Dainippon Pharma Co., Ltd., Kobe KIMEC Center Building 5th Fl., 1-5-2 Minatojimaminamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Kenji Yoshida
- Regenerative and Cellular Medicine Kobe Center, Sumitomo Dainippon Pharma Co., Ltd., Kobe KIMEC Center Building 5th Fl., 1-5-2 Minatojimaminamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Akiyoshi Kishino
- Regenerative and Cellular Medicine Kobe Center, Sumitomo Dainippon Pharma Co., Ltd., Kobe KIMEC Center Building 5th Fl., 1-5-2 Minatojimaminamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Atsushi Tsuchida
- Regenerative and Cellular Medicine Office, Sumitomo Dainippon Pharma Co., Ltd., 13-1 Kyobashi 1-chome, Chuo-ku, Tokyo 104-8356, Japan
| | - Toru Kimura
- Regenerative and Cellular Medicine Office, Sumitomo Dainippon Pharma Co., Ltd., 13-1 Kyobashi 1-chome, Chuo-ku, Tokyo 104-8356, Japan
| | - Jun Takahashi
- Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan
| | - Shizu Takeda
- Center for Exploratory Research, Research and Development Group, Hitachi, Ltd., Kobe Center for Medical Innovation Building 201, 6-3-5 Minatojimaminamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan.
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