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相关概念视频

Abnormal Proliferation02:23

Abnormal Proliferation

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Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
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Microtubules are hollow cylindrical filaments having a diameter of approximately 25 nm and a length that varies from 200 nm to 25 μm. GTP-bound tubulin subunits form αβ-heterodimers for microtubule assembly. These core building blocks interact longitudinally, polymerizing into protofilaments. The protofilaments then interact with one another through lateral bonding forces to form stable cylindrical microtubules. These cylindrical filaments are dynamic as they undergo repeated...
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相关实验视频

Updated: Jan 10, 2026

Cell Lineage Analyses and Gene Function Studies Using Twin-spot MARCM
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Cell Lineage Analyses and Gene Function Studies Using Twin-spot MARCM

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ZMYND11抑制KMT2A,使神经元发育程序成为可能.

Alexander W Greben1,2, Xiaoli S Wu1, Josephine E Robb1

  • 1Department of Neurobiology, Harvard Medical School, Boston, MA, USA.

bioRxiv : the preprint server for biology
|November 24, 2025
PubMed
概括
此摘要是机器生成的。

ZMYND11中的突变会导致与ZMYND11相关的综合征性智力障碍 (ZRSID). 神经元中ZMYND11的丧失通过抑制KMT2A来破坏基因表达,这表明KMT2A抑制是潜在的ZRSID疗法.

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Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development
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科学领域:

  • 神经科学是一个神经科学.
  • 遗传学 遗传学 是一个
  • 染色体生物学 染色体生物学

背景情况:

  • ZMYND11突变导致ZMYND11相关综合征性智力障碍 (ZRSID),其特征是发育迟缓和发作.
  • 在小鼠中,神经元ZMYND11损失导致异常基因表达,神经元连接性降低和行为缺陷.

研究的目的:

  • 研究ZMYND11调节大脑中的基因表达的机制.
  • 探索针对ZRSID的KMT2A的治疗潜力.

主要方法:

  • 使用ZMYND11淘汰赛小鼠模型研究ZRSID.
  • 研究了ZMYND11与基因素甲基转移酶KMT2A (MLL1) 的相互作用.
  • 在初级皮层神经元中使用了被降解标记的ZMYND11小鼠模型和KMT2A抑制剂revumenib.

主要成果:

  • 神经元中ZMYND11的删除会提高非神经元基因程序的调节,导致树突分支受损和运动异常.
  • ZMYND11直接抑制KMT2A,KMT2A是癌症和发育基因程序中的一个关键参与者.
  • 与ZRSID相关的突变破坏了ZMYND11-KMT2A相互作用,突出显示了它在大脑发育中的重要性.
  • 由ZMYND11损失引起的KMT2A抑制与revumenib减弱的基因表达变化.

结论:

  • ZMYND11通过抑制KMT2A.通过抑制神经元基因表达的关键调节剂.
  • ZMYND11-KMT2A相互作用对于正常的大脑发育至关重要.
  • 针对KMT2A活动为ZRSID提供了潜在的治疗策略.