1
|
Inage Y, Fujimori K, Takasu M, Matsui K, Kinoshita Y, Morimoto K, Koda N, Yamamoto S, Shimada K, Yokoo T, Kobayashi E. Fetal Kidney Grafts and Organoids from Microminiature Pigs: Establishing a Protocol for Production and Long-Term Cryopreservation. Int J Mol Sci 2024; 25:4793. [PMID: 38732014 PMCID: PMC11084491 DOI: 10.3390/ijms25094793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/20/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
Fetal organs and organoids are important tools for studying organ development. Recently, porcine organs have garnered attention as potential organs for xenotransplantation because of their high degree of similarity to human organs. However, to meet the prompt demand for porcine fetal organs by patients and researchers, effective methods for producing, retrieving, and cryopreserving pig fetuses are indispensable. Therefore, in this study, to collect fetuses for kidney extraction, we employed cesarean sections to preserve the survival and fertility of the mother pig and a method for storing fetal kidneys by long-term cryopreservation. Subsequently, we evaluated the utility of these two methods. We confirmed that the kidneys of pig fetuses retrieved by cesarean section that were cryopreserved for an extended period could resume renal growth when grafted into mice and were capable of forming renal organoids. These results demonstrate the usefulness of long-term cryopreserved fetal pig organs and strongly suggest the effectiveness of our comprehensive system of pig fetus retrieval and fetal organ preservation, thereby highlighting its potential as an accelerator of xenotransplantation research and clinical innovation.
Collapse
Affiliation(s)
- Yuka Inage
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan; (Y.I.)
- Department of Pediatrics, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Koki Fujimori
- Sumitomo Pharma, Co., Ltd., Osaka 541-0045, Japan; (K.F.)
| | - Masaki Takasu
- Center for One Medicine Innovative Translational Research (COMIT), Gifu University, Gifu 501-1193, Japan
| | - Kenji Matsui
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan; (Y.I.)
| | - Yoshitaka Kinoshita
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan; (Y.I.)
- Department of Urology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8654, Japan
| | - Keita Morimoto
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan; (Y.I.)
| | - Nagisa Koda
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan; (Y.I.)
| | - Shutaro Yamamoto
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan; (Y.I.)
- Department of Urology, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | | | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan; (Y.I.)
| | - Eiji Kobayashi
- Department of Kidney Regenerative Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| |
Collapse
|
2
|
Matsui K, Sekine H, Ishikawa J, Enosawa S, Matsumoto N, Inage Y, Kinoshita Y, Morimoto K, Yamamoto S, Koda N, Yamanaka S, Yokoo T, Kobayashi E. Exploration of Preservation Methods for Utilizing Porcine Fetal-Organ-Derived Cells in Regenerative Medicine Research. Cells 2024; 13:228. [PMID: 38334620 PMCID: PMC10854901 DOI: 10.3390/cells13030228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 01/18/2024] [Accepted: 01/22/2024] [Indexed: 02/10/2024] Open
Abstract
Human pluripotent stem cells have been employed in generating organoids, yet their immaturity compared to fetal organs and the limited induction of all constituent cell types remain challenges. Porcine fetal progenitor cells have emerged as promising candidates for co-culturing with human progenitor cells in regeneration and xenotransplantation research. This study focused on identifying proper preservation methods for porcine fetal kidneys, hearts, and livers, aiming to optimize their potential as cell sources. Extracted from fetal microminiature pigs, these organs were dissociated before and after cryopreservation-thawing, with subsequent cell quality evaluations. Kidney cells, dissociated and aggregated after vitrification in a whole-organ form, were successfully differentiated into glomeruli and tubules in vivo. In contrast, freezing hearts and livers before dissociation yielded suboptimal results. Heart cells, frozen after dissociation, exhibited pulsating heart muscle cells similar to non-frozen hearts. As for liver cells, we developed a direct tissue perfusion technique and successfully obtained highly viable liver parenchymal cells. Freezing dissociated liver cells, although inferior to their non-frozen counterparts, maintained the ability for colony formation. The findings of this study provide valuable insights into suitable preservation methods for porcine fetal cells from kidneys, hearts, and livers, contributing to the advancement of regeneration and xenotransplantation research.
Collapse
Affiliation(s)
- Kenji Matsui
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Hidekazu Sekine
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women’s Medical University, Tokyo 162-0056, Japan;
| | - Jun Ishikawa
- Division for Advanced Medical Sciences, National Center for Child Health and Development, Tokyo 157-8535, Japan (S.E.)
| | - Shin Enosawa
- Division for Advanced Medical Sciences, National Center for Child Health and Development, Tokyo 157-8535, Japan (S.E.)
- Department of Kidney Regenerative Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Naoto Matsumoto
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Yuka Inage
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
- Department of Pediatrics, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Yoshitaka Kinoshita
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
- Department of Urology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8654, Japan
| | - Keita Morimoto
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Shutaro Yamamoto
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
- Department of Urology, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Nagisa Koda
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Shuichiro Yamanaka
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Eiji Kobayashi
- Department of Kidney Regenerative Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| |
Collapse
|