Establishment of feline embryonic stem cells from the inner cell mass of blastocysts produced in vitro

被引:1
|
作者
Yoshida, Takumi [1 ]
Tsukamoto, Masaya [1 ]
Kimura, Kazuto [1 ]
Tanaka, Miyuu [2 ]
Kuwamura, Mitsuru [2 ]
Hatoya, Shingo [1 ]
机构
[1] Osaka Metropolitan Univ, Grad Sch Vet Sci, Dept Adv Pathobiol, Izumisano, Osaka 5988531, Japan
[2] Osaka Metropolitan Univ, Grad Sch Vet Sci, Dept Integrated Struct Biosci, Izumisano, Osaka 5988531, Japan
来源
REGENERATIVE THERAPY | 2025年 / 28卷
关键词
Feline; Embryonic stem cell; Pluripotency; Veterinary regenerative medicine; Artificial reproductive technology; Wildlife conservation; PRESERVATION; DERIVATION; CULTURE; LINE;
D O I
10.1016/j.reth.2024.11.010
中图分类号
Q813 [细胞工程];
学科分类号
摘要
Introduction: The rising number of cats as pets and the growing interest in animal welfare have led to an increased need for the latest treatments in feline veterinary medicine. Among these, veterinary regenerative medicine using pluripotent stem cells is gaining significant attention. However, there have been no reports on establishing feline embryonic stem cell (ESC) lines that possess the pluripotent potential and the ability to differentiate into three germ layers. Methods: In this study, we isolated three inner cell masses from feline in vitro-derived blastocysts and subcultured them in a chemically defined medium (StemFit AK02N). We assessed the expression of undifferentiated markers, the ability to differentiate into the three germ layers, and the karyotype structure. Results: We established three feline ESC lines. Feline ESCs exhibited positive staining for alkaline phosphatase. RT-qPCR analysis revealed that these cells express undifferentiated marker genes in vitro. Immunostaining and flow cytometry analysis demonstrated that feline ESCs express undifferentiated marker proteins in vitro. In the KSR/FBS medium with or without Activin A, feline ESCs differentiated into all three germ layers (ectoderm, endoderm, and mesoderm), expressing specific marker genes and proteins for each germ layer, as evidenced by RT-qPCR, immunostaining, and flow cytometry. Furthermore, we confirmed that feline ESCs formed teratomas comprising all three germ layers in mouse testes, demonstrating de novo pluripotency in vivo. We also verified that the feline ESCs maintained a normal karyotype. Conclusions: We successfully established three feline ESC lines, each possessing pluripotent potential and capable of differentiating into all three germ layers, derived from the inner cell masses of blastocysts produced in vitro. (c) 2024 The Author(s). Published by Elsevier BV on behalf of The Japanese Society for Regenerative Medicine. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/lice nses/by-nc-nd/4.0/).
引用
收藏
页码:63 / 72
页数:10
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