Tissue Microdissection
Tissue Microdissection - Related Videos
16:34
Laser Capture Microdissection of Mammalian Tissue
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Cited by 25 •
2007
Laser capture microscopy, also known as laser microdissection (LMD), enables the user to isolate small numbers of cells or tissues from frozen or ...
09:01
Microdissection of Zebrafish Embryonic Eye Tissues
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Cited by 15 •
2010
This article describes an approach to microdissect zebrafish retinas with and without retinal pigment epithelium attached, from one to three days postfertilization embryos.
02:41
Cryopreserved Tissue Section Fixation and Staining: A Procedure to Process Frozen Brain Tissue Sections for Laser Microdissection
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2023
This video presents the fixation and staining method to process frozen mouse brain tumor tissue. The processed tissue helps differentiate and obtain a specific population of cells during subsequent laser capture microdissection.
09:21
Laser Capture Microdissection of Paraformaldehyde-Fixed Mouse Liver Tissue for RNA Analysis
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2026
This protocol describes a method to isolate RNA from defined histological regions of paraformaldehyde-fixed, Optimal Cutting Temperature compound-embedded mouse liver tissue using laser capture microdissection, enabling targeted downstream gene expression analysis.
12:02
Laser Capture Microdissection of Drosophila Peripheral Neurons
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Cited by 25 •
2010
In this video-article we present a method for isolating single or multiple Drosophila da neurons from third instar larvae using the infrared capture (IR) class of Laser Capture Microdissection (LCM). RNA obtained from the isolated neurons can be readily used for downstream applications including qRT-PCR or microarray analyses.
FAQs
Anatomical context allows researchers to connect molecular measurements with the precise microscopic region or cell population from which the material originated. This matters because neighboring cells within one tissue can have different molecular profiles. By keeping the sampled location defined, the method helps interpret DNA, RNA, or protein findings in relation to tissue organization rather than treating the entire specimen as uniform.
Bulk tissue analysis combines material from multiple cell populations, which can obscure differences between them. Tissue Microdissection narrows the sample to a defined cell group or microscopic region before molecular analysis. The resulting DNA, RNA, or protein measurements can therefore reflect localized biology more specifically, supporting comparisons among neighboring populations and revealing changes that a mixed sample might conceal.
Microscopic guidance is essential because it lets the researcher identify the intended cells or region before separation and keep the sampling decision tied to tissue architecture. This step supports selective collection rather than indiscriminate removal of nearby material. As a result, downstream molecular findings can be assigned to a defined anatomical source, which is especially important when adjacent populations differ.
The workflow begins with microscopic examination of a tissue section to identify the target cells or region. The selected material is then separated from surrounding tissue with a fine blade, needle, or focused laser and collected. Finally, the isolated sample undergoes downstream extraction of DNA, RNA, or proteins for molecular analysis.
After isolation, the collected material can undergo extraction for DNA, RNA, or proteins. These products support gene-expression studies, genomic analysis, and proteomic analysis, respectively, while preserving the link to the sampled microscopic region. The choice of downstream target determines which molecular information is obtained from the isolated tissue.
Researchers would choose Tissue Microdissection when molecular differences among neighboring cell populations matter, or when disease-associated changes may be obscured by mixed tissue. Sampling a defined region makes the resulting analysis more spatially specific and helps distinguish localized biology from signals contributed by surrounding cells.
In developmental studies, Tissue Microdissection can separate defined microscopic regions for molecular comparison. In disease research, it can focus analysis on tissue areas associated with disease-related changes. Across both settings, retaining anatomical context helps relate molecular differences to the location and cellular population being examined.