由MELAS衍生的神经元通过从高度净化的介质干细胞 (REC) 进行线粒体转移而功能性改善
Lu Liu1, Jiahao Yang1, Yoshinori Otani2
1Department of Pediatrics, Faculty of Medicine, Shimane University, 89-1 Enya-cho, Izumo 693-8501, Japan.
International journal of molecular sciences
|December 23, 2023
概括
高净化的介质干细胞 (REC) 可以将功能性线粒体捐赠给受MELAS综合征影响的神经元. 这种线粒体转移显示出作为MELAS中神经功能障碍的治疗策略的希望.
科学领域:
- 神经科学是一个神经科学.
- 线粒体生物学 线粒体生物学
- 干细胞疗法是一种干细胞疗法.
背景情况:
- 线粒体脑膜病变,乳酸性酸和类似中风的发作 (MELAS) 综合征是一种常见的遗传线粒体疾病,导致神经元损伤.
- 目前对MELAS的治疗方法有限,这凸显了对新型治疗方法的需求.
- 以前的研究表明,介质干细胞 (REC) 可以恢复缺陷细胞中的线粒体功能.
研究的目的:
- 为了调查外源性线粒体是否可以捐赠给MELAS神经元.
- 为了确定RECs与介质干细胞 (MSCs) 在线粒体转移中的有效性.
- 评估线粒体捐赠后MELAS神经元的功能恢复.
主要方法:
- 从使用诱导多能干细胞 (iPSCs) 的MELAS患者中产生了神经元与线粒体功能受损的神经元.
- 在接触和非接触条件下,MELAS神经元与REC和MSC共同培养.
- 通过测量膜潜力,ATP / ROS生产,储存和氧气消耗来评估线粒体功能.
主要成果:
- 无论是REC还是MSC都成功地将线粒体捐赠给MELAS神经元,REC都显示出更高的传输效率.
- 通过REC介导的线粒体转移显著恢复了MELAS神经元中的关键线粒体功能.
- 转移后至少持续三周,线粒体功能得到改善.
结论:
- 外源性线粒体,特别是来自REC的线粒体,可以有效地转移到MELAS神经元.
- 通过REC介导的线粒体捐赠显示出对MELAS相关的神经功能障碍的治疗策略的潜力.
- 这项研究提供了线粒体转移作为治疗遗传线粒体疾病的可行方法的证据.
相关概念视频
Mesenchymal Stem Cells
4.7K
Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...
4.7K
Satellite Stem Cells and Muscular Dystrophy
2.0K
Satellite stem cells or myosatellite cells are quiescent stem cells that Alexander Mauro first identified in 1961. These cells are located between the sarcolemma, the plasma membrane of muscle fibers, and the basal lamina, the connective tissue sheath covering it. These mononucleated cells are activated in response to muscle injury, can transform into myoblasts, and may form or repair muscle fibers. Myosatellite cells can provide additional myonuclei for muscle regeneration or return to a...
2.0K


