Leica Microsystems: 显微镜科学与教学知识中心

显微镜科学与教学知识中心

徕卡显微系统的知识库提供有关显微镜学科的科学研究和教学材料。内容旨在对显微镜初学者、有经验的显微镜操作实践者和使用显微镜的科学家在他们的日常工作和实验有所帮助。这里有探索交互式教程和应用笔记，你可以找到你需要的显微镜的基础知识以及前沿技术——快来加入徕卡显微知识社区，分享您的专业知识！

[Translate to chinese:] Multiplexed Cell DIVE imaging of Adult Human Alzheimer’s brain tissue section demonstrating expression of markers specific to astrocytes (GFAP, S100B), microglia (TMEM119, IBA1), AD-associated markers (p-Tau217, β-amyloid) and immune cells such as CD11b+, CD163+, CD4+, and HLA-DRA+, clustered around the β-amyloid plaques.

Spatial Analysis of Neuroimmune Interactions in Alzheimer’s Disease

Alzheimer’s disease (AD) is a complex neurodegenerative disorder characterized by neurofibrillary tangles, β-amyloid plaques, and neuroinflammation. These dysfunctions trigger or are exacerbated by…

A Guide to Spatial Biology

What is spatial biology, and how can researchers leverage its tools to meet the growing demands of biological questions in the post-omics era? This article provides a brief overview of spatial biology…

[Translate to chinese:] AI-based transfection analysis (left) of U2OS cells which were transfected with a fluorescently labelled protein. A fluorescence image of the cells (right) is also shown. The analysis and imaging were performed with Mateo FL.

利用AI实现细胞转染的高效分析

本文探讨了AI（AI）在优化 2D 细胞培养研究中转染效率测量中的关键作用。对于理解细胞机制而言，精确可靠的 2D 细胞培养转染效率测量至关重要。靶向蛋白的高转染效率对于包括活细胞成像和蛋白纯化在内的实验至关重要。手动估计存在不一致性和不可靠性。借助AI的力量，可以实现高效可靠的转染研究。

[Translate to chinese:] Image of confluent cells taken with phase contrast (left) and analyzed for confluency using AI (right).

通过 AI 汇合度提高 2D 细胞培养的精度

本文解释了如何利用人工智能（AI）进行高效、精确的 2D 细胞培养汇合度评估。准确评估细胞培养的汇合度，即表面积覆盖的百分比，对于可靠的细胞研究至关重要。传统方法使用视觉检查或简单算法，使结果不客观和精确，尤其是对于用于药物发现、组织工程和再生医学的复杂细胞系。利用自动化图像分析和深度学习算法的方法提供更好的精度，并可以增强实验结果。

2D slice of colon cancer tissue stained with 30 markers and imaged using the Cell DIVE system. Analysis performed using Aivia 13’s new multiplex cell detection recipe and automatic clustering tool. Each phenotype denoted in a different color.

Transforming Multiplexed 2D Data into Spatial Insights Guided by AI

Aivia 13 handles large 2D images and enables researchers to obtain deep insights into microenvironment surrounding their phenotypes with millions of detected objects and automatic clustering up to 30…

Protist Paramecium (Paramecium tetraurelia) stained to show the nucleus

复杂3D数据集——人工智能赋能的空间数据分析

本期MicaCam为您提供切实的建议，教您从显微镜图像中提取可发表级别的分析结果。本期的特邀嘉宾来自徕卡显微系统的Luciano Lucas，他将为大家展示如何使用MICA的AI赋能软件进行图像分析。他将深度分析两张MICA的3D成像，探究不同可见生物元素之间的空间关系。本期的最后将会介绍如何创作高保真视频动画以及其他可用于发表文章的结果。

Left-hand image: The distribution of immune cells (white) and blood vessels (pink) in white adipose tissue (image captured using the THUNDER Imager 3D Cell Culture). Right-hand image: The same image after automated analysis using Aivia, with each immune cell color-coded based on its distance to the nearest blood vessel. Image courtesy of Dr. Selina Keppler, Munich, Germany.

精确分析宽视野荧光图像

利用荧光显微镜的特异性，即便是使用厚样品和大尺寸样品，研究人员也能够快速轻松地准确观察和分析生物学过程和结构。然而，离焦荧光会提高背景荧光，降低对比度，影响图像的精确分割。THUNDER 与Aivia 的组合可以有效解决这一问题。前者可以消除图像模糊，后者会使用人工智能技术自动分析宽视野图像，提高操作速度和精确性。下面，我们来详细了解下这一协作方法。