Microdissection Procedure
Microdissection Procedure - Related Videos
02:41
Cryopreserved Tissue Section Fixation and Staining: A Procedure to Process Frozen Brain Tissue Sections for Laser Microdissection
0 Views •
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.
12:02
Laser Capture Microdissection of Drosophila Peripheral Neurons
0 Views •
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.
16:34
Laser Capture Microdissection of Mammalian Tissue
0 Views •
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
0 Views •
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.
12:38
Laser Capture Microdissection of Neurons from Differentiated Human Neuroprogenitor Cells in Culture
0 Views •
Cited by 3 •
2013
Human neuroprogenitor cells (NPCs) were expanded under proliferating conditions. NPCs were differentiated into neuron-rich cultures in the presence of a combination of neurotrophins. Neuronal markers were detected by immunofluorescence staining. To isolate a pure population of neurons, NPCs were differentiated on PEN membrane slides and laser capture microdissection was performed.
FAQs
Mechanical and laser-guided approaches provide two ways to separate selected material. Mechanical isolation uses specialized tools to remove the target, whereas laser guidance directs cutting around the chosen region. The distinction matters because both approaches aim to retain the specimen’s anatomical relationship and molecular material, allowing the isolated sample to remain suitable for focused biological analysis.
Preserving anatomical context lets researchers interpret molecular findings in relation to the tissue structure from which a sample came. This is especially valuable in heterogeneous tissues, where neighboring regions or cell populations may differ. Linking location with DNA, RNA, protein, or histological results can help distinguish changes associated with a particular region rather than the specimen as a whole.
Microscopic identification is central because the target must be recognized before separation. Researchers can select either a small, defined tissue region or individual cells, then apply specialized tools or laser-guided cutting to that precise location. This targeting preserves spatial information and supports collection of a population whose composition is tied to the observed anatomy.
A typical workflow begins by examining the biological specimen under a microscope and identifying the region or cells of interest. The selected material is then separated mechanically or with laser-guided cutting and recovered for focused analysis. The resulting sample may be directed toward DNA, RNA, protein, or histological study, depending on the biological question.
Recovered material can support DNA, RNA, protein, and histological studies. These readouts provide complementary views of a selected region, including its genetic material, molecular activity, proteins, or tissue appearance. Because the sample comes from a defined location or cell population, findings can be related back to cellular composition, tissue structure, and function.
Biologists use these results when they need to compare specific regions or cell populations rather than analyze an entire heterogeneous tissue. Applications include gene-expression profiling, pathology, developmental research, and studies of disease mechanisms. Comparing normal and diseased regions can reveal how cellular composition and molecular features relate to tissue structure or biological function.