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相关概念视频

Phase Contrast and Differential Interference Contrast Microscopy01:26

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Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
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相关实验视频

Updated: Sep 17, 2025

Author Spotlight: Importance of Single Cell Sorting in Isolating Purified Populations of Mesenchymal Stem Cells
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差分相对照成像用于预测MSC免疫功能

Kejie Rui1,2, Priyanka Priyadarshani1,2, Adrian Ross Liversage1,2

  • 1School of Chemical, Materials and Biomedical Engineering, Athens, University of Georgia, Athens, GA, 30602, USA.

Advanced healthcare materials
|July 2, 2025
PubMed
概括
此摘要是机器生成的。

这项研究探讨使用单细胞成像来预测介质细胞 stromal 细胞 (MSCs) 的免疫抑制能力. 这种非破坏性的方法可以改善细胞疗法的质量控制.

关键词:
介质细胞层细胞是介质细胞层细胞.细胞形态细胞形态学免疫抑制能力的免疫抑制能力.定量差异化相位对比成像对比成像技术

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科学领域:

  • 细胞生物学 细胞生物学
  • 免疫学 免疫学 免疫学
  • 生物技术是生物技术.

背景情况:

  • 介酶体 stromal 细胞 (MSCs) 具有免疫调节特性,有利于治疗自身免疫和炎症性疾病.
  • MSCs的临床转化受到培养异质性和缺乏可靠的功效测试的限制.
  • 印度列胺-2,3-二氧化酶 (IDO) 活性是MSC免疫抑制功能的关键指标.

研究的目的:

  • 为了研究单细胞形态成像作为一种非侵入性方法来估计MSC胺-2,3-二氧化酶 (IDO) 活性.
  • 开发机器学习模型,用于在生物制造过程中从活体MSC预测IDO活动.
  • 扩展成像特征,以基于IDO活性和T细胞免疫抑制来评估MSC功效.

主要方法:

  • 利用光和无标签的定量差相对比 (qDPC) 成像来捕捉活的MSC形态.
  • 使用定量成像技术从单个MSC中提取形态特征.
  • 应用机器学习 (ML) 回归模型来预测单细胞 IDO 蛋白质和酶活性.

主要成果:

  • 通过使用qDPC成像,成功地从活体MSC中提取了形态特征.
  • 开发了能够从形态数据预测单细胞IDO活动的ML模型.
  • 证明qDPC成像可以估计MSC功效,与IDO活性和T细胞抑制相关.

结论:

  • 单细胞形态成像提供了一个可扩展的,非破坏性的方法来监测MSC免疫调节能力.
  • 该方法为MSC制造中开发强有力的质量控制策略提供了基础.
  • 这些发现支持MSC治疗炎症和自身免疫性疾病的进展.