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相关概念视频

The Extrinsic Apoptotic Pathway01:17

The Extrinsic Apoptotic Pathway

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The extrinsic apoptotic pathway is initiated when extracellular death-inducing signals, such as specific cytokines, activate the death receptors expressed on the cell surface. The immune cells involved in this pathway are natural killer cells (NK cells) and cytotoxic T-lymphocytes. NK cells are critical in innate immune response, while cytotoxic T-lymphocytes are associated with adaptive immune response. These cells recognize specific receptors expressed on the altered cells and activate...
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相关实验视频

Updated: May 22, 2025

Use of LysoTracker to Detect Programmed Cell Death in Embryos and Differentiating Embryonic Stem Cells
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Use of LysoTracker to Detect Programmed Cell Death in Embryos and Differentiating Embryonic Stem Cells

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远大脑发育中的外部亡和亡:单细胞质量细胞计研究

Jiachen Shi, Weile Liu, Alison Song

    bioRxiv : the preprint server for biology
    |March 17, 2025
    PubMed
    概括

    调节的细胞死亡塑造了发育中的大脑. 联合删除RIPK3和Caspase-8增加了细胞数量,揭示了亡和亡在大脑发育中的不同作用.

    科学领域:

    • 神经科学是一个神经科学.
    • 发育生物学 发展生物学
    • 细胞死亡研究 细胞死亡研究

    背景情况:

    • 调节细胞死亡对大脑发育至关重要.
    • 在这个过程中,外部亡和亡的具体作用尚未完全理解.

    研究的目的:

    • 调查RIPK3介导的亡和Caspase-8介导的亡对telencephalon发育的贡献.
    • 在缺乏这些细胞死亡途径的小鼠中描述细胞格局.

    主要方法:

    • 使用单细胞质量细胞计 (CyTOF).
    • 对野生类型 (WT),RIPK3淘汰 (RIPK3 KO) 和RIPK3/Caspase-8双淘汰 (DKO) 鼠标telencephalons进行分析.

    主要成果:

    • 联合删除RIPK3和Caspase-8导致总细胞数显著增加12.6%.
    • DKO小鼠显示Tbr2+中间基因和内皮细胞的选择性丰富.
    • 这挑战了只有内在亡才能控制发育细胞淘汰的观念.

    结论:

    • 外在的亡和亡途径在远脑发育中具有不同的,特定于细胞类型的作用.
    • 这些发现为发育中的大脑细胞数量调节提供了新的视角.

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  • 这项研究表明,与神经发育障碍的潜在联系包括异常细胞死亡.