从不同细胞类型中分离出的线粒体的结构和功能多样性
Yusei Endo1, Mai Kanai2, Masaki Kobayashi3,4
1Laboratory of Cellular Drug Discovery and Development, Faculty of Pharmaceutical Sciences, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585, Japan.
Biological & pharmaceutical bulletin
|March 8, 2026
概括
介酶体 stromal 细胞线粒体表现出优越的生物能活性,用于移植治疗. 这些线粒体增强细胞增殖和抗压能力,提供了一个有前途的治疗来源.
科学领域:
- 细胞生物学 细胞生物学
- 生物能源学 生物能源学
- 再生医学是一种再生医学.
背景情况:
- 线粒体是细胞能量生产的重要器官,其功能障碍与各种疾病有关.
- 线粒体移植是一种新的治疗策略,通过改善ATP生成和减少氧化应激来恢复细胞功能.
- 了解来自不同来源的线粒体的功能多样性对于优化移植治疗至关重要.
研究的目的:
- 为了确定移植治疗的最佳线粒体源.
- 为了比较从不同类型的哺乳动物细胞中分离出的线粒体的特征和功能多样性.
- 为了评估由介质细胞 stromal 细胞衍生出的线粒体的治疗潜力.
主要方法:
- 线粒体被分离出介质干细胞,肝脏干细胞,肌肉干细胞和多能干细胞,采用基于Streptolysin O的方法.
- 隔离的线粒体的特点是粒子大小,泽塔潜力,蛋白质含量和ATP含量.
- 孤立线粒体的生物能活性和治疗效果在接受细胞中进行了评估.
主要成果:
- 隔离的线粒体表现出均的形态,负面电荷和足够的ATP含量,适合功能分析.
- 来自介质细胞 stromal 细胞的线粒体显示出最高的生物能活性.
- 这些线粒体的移植增强了受体细胞的增殖,氧气消耗和氧化应激抵抗力.
结论:
- 来自自异体介质细胞的线粒体具有卓越的生物能量特性.
- 这些线粒体代表了线粒体移植治疗的最佳来源.
- 这些发现为设计有效的基于线粒体的治疗方法提供了洞察力.
更多相关视频
相关概念视频
Mitochondrial Membranes
17.6K
A single mitochondrion is a bean-shaped organelle enclosed by a double-membrane system. The outer membrane of mitochondria is smooth and contains many porins - the integral membrane transporters. Porins enable free diffusion of ions and small uncharged molecules through the outer mitochondrial membrane but limit the transport of molecules larger than 5000 Daltons. Further, the outer mitochondrial membrane forms a unique structure called membrane contact sites with other subcellular organelles,...
17.6K
Mitochondria
21.1K
Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
21.1K
Animal Mitochondrial Genetics
9.8K
Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...
9.8K
The Inner Mitochondrial Membrane
4.9K
The inner mitochondrial membrane is the primary site of ATP synthesis. The inner membrane domain that forms a smooth layer adjacent to the outer membrane is called the inner boundary membrane. This domain contains membrane transporters that drive metabolites in and out of the mitochondria. In contrast, the inner membrane network that invaginates into the matrix space is called the cristae membrane. This domain accounts for principle mitochondrial function as it accommodates the protein...
4.9K
Microbial Morphologies
4.6K
Bacterial and archaeal cells exhibit remarkable diversity in shape and structure, critical in their adaptability and functionality. Among bacteria, the most commonly observed shapes include cocci and bacilli. Cocci are spherical and may exist singly or in groupings such as pairs (diplococci), chains (streptococci), clusters (staphylococci), or tetrads. Bacilli, in contrast, are rod-shaped and can also occur as single cells, in pairs, or chains, depending on their environmental and genetic...
4.6K
Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes
17.3K
The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...
17.3K


