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Microtubules in Signaling

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The primary cilium, made up of microtubules, acts as antennae on the cell surfaces for relaying external stimuli into the cells. These fine hair-like structures are present, generally one per cell. These are non-motile cilia in a 9+0 microtubules arrangement, where the central pair of microtubules are absent. The primary cilia arise from the basal body embedded in the cell membrane. Intraflagellar transport (IFT) carries requisite proteins from the cytoplasm to the cilium because the primary...
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相关实验视频

Updated: May 4, 2026

A Next-generation Tissue Microarray ngTMA Protocol for Biomarker Studies
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基于的组织微阵列构造用于瘤和疾病研究.

Junwen Cai1, Ying Zheng2, Wenguang He3

  • 1Department of Medical Laboratory, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University.

Journal of visualized experiments : JoVE
|August 18, 2025
PubMed
概括

一种新的基于合物的方法增强了用于生物标志物研究的组织微阵列 (TMA) 构造. 这种技术改善了组织的固定和稳定性,为中等吞吐量研究提供了可靠,具有成本效益的替代方案.

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Last Updated: May 4, 2026

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科学领域:

  • 生物医学工程 生物医学工程
  • 病理学 病理学 病理学
  • 分子生物学分子生物学

背景情况:

  • 组织微阵列 (TMA) 技术使组织样本用于疾病生物标志物研究的高通量分析成为可能.
  • 传统的TMA施工方法带来了挑战,包括复杂性,时间消耗和可变的准确性.
  • 需要改进TMA施工技术,以提高效率和可靠性.

研究的目的:

  • 开发和验证一种新的基于粘合剂的方法,用于组织微阵列的构建.
  • 解决传统TMA方法的局限性,重点是改善组织核心固定和结构稳定性.
  • 通过系统验证来评估基于的TMA方法的性能.

主要方法:

  • 开发一种基于的协议,用于TMA块的制备.
  • 系统验证使用血素和埃 (HE) 染色进行组织学评估.
  • 目标蛋白质的免疫组织化学 (IHC) 分析和光现场混合 (FISH) 分析.

主要成果:

  • 基于合剂的方法显示出出色的切片完整性和提高组织核心的结构稳定性.
  • 在IHC和FISH分析中观察到更好的信号噪声比率.
  • 实现了一致的批量复制性,表明了可靠性.
  • 这种方法被证明是具有成本效益的,适合中等通量TMA生产.

结论:

  • 基于的TMA构造方法为生物标志物研究提供了可靠且具有成本效益的解决方案.
  • 这种技术克服了传统方法的局限性,提供了改善的组织固定和稳定性.
  • 这种方法对于优先考虑灵活性和样本多样性的研究环境特别有价值,扩大了TMA在学术和诊断环境中的实用性.