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相关概念视频

Electron Transport Chain: Complex I and II01:46

Electron Transport Chain: Complex I and II

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The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
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Mitochondria01:37

Mitochondria

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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,...
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Mitochondrial Membranes01:45

Mitochondrial Membranes

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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,...
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Tumor Immunotherapy

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Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
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Translocation of Proteins into the Mitochondria01:19

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Mitochondrial precursors are translocated to the internal subcompartments via independent mechanisms involving distinct protein machineries called translocases.
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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...
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Author Spotlight: Transmitochondrial Cybrid Generation Using Cancer Cell Lines
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关于调节瘤免疫力的线粒体的研究进展.

Jing Li1, Pinglong Xu2,3,4,5, Shasha Chen6

  • 1College of Life and Environmental Science, Wenzhou University, Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, Wenzhou 325035, Zhejiang Province, China. 21451335023@stu.wzu.edu.cn.

Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences
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概括

线粒体在癌症的进展和免疫抑制中发挥着关键作用. 了解线粒体功能,通过向瘤细胞代谢和免疫反应,为抗瘤免疫疗法提供了新的策略.

关键词:
线粒体DNA是线粒体的DNA.线粒体动力学的动态线粒体能量代谢的能量代谢线粒体的反应性氧物种.线粒体中的线粒体.审查 审查 审查 审查瘤免疫系统的免疫力瘤微环境是一个微环境.

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科学领域:

  • 线粒体生物学 线粒体生物学
  • 癌症免疫学 癌症免疫学
  • 免疫代谢过程中的免疫代谢.

背景情况:

  • 瘤细胞为生长和生存重新编程新陈代谢.
  • 线粒体是瘤细胞代谢重编程和癌症进展的核心.
  • 线粒体功能障碍影响瘤和免疫细胞,影响瘤发生.

研究的目的:

  • 探索线粒体生物学与抗瘤免疫反应之间的复杂关系.
  • 突出线粒体在塑造瘤微环境和免疫逃避中的作用.
  • 讨论针对新型抗瘤免疫疗法的定向线粒体策略.

主要方法:

  • 关于癌症和免疫学中线粒体生物学现有文献的综述.
  • 分析线粒体动力学,新陈代谢和瘤透免疫细胞中的信号传递.
  • 在免疫调节中检查线粒体DNA和反应性氧物种.

主要成果:

  • 线粒体变化通过影响免疫细胞功能来驱动瘤免疫抑制.
  • 线粒体DNA泄漏会激活免疫信号通路 (例如cGAS-STING,TLR9,NLRP3).
  • 线粒体的活性氧物种有助于免疫抑制瘤微环境.

结论:

  • 线粒体是瘤和宿主免疫系统之间的相互作用的关键调节者.
  • 准线粒体新陈代谢和动态是癌症免疫疗法的有希望的方法.
  • 线粒体DNA介导的免疫细胞死亡提供了一个潜在的治疗策略.