Dissection of Hippocampal Dentate Gyrus from Adult Mouse
November 17th, 2009
A dissection technique for removal of the dentate gyrus from adult mouse under a stereomicroscope was demonstrated in this video-recorded protocol.
The hippocampus is one of the most Widely studied areas in the brain because it's important functional role in memory processing. It's remarkable neuroplasticity and it's involvement in epilepsy, neurodegenerative diseases and psychological disorders. The hippocampus is composed of distinct regions, the DTO Gyrus, CO one, and CS three.
The DTO gyrus is a site of other neurogenesis and many researchers may be including you are interested in this region. This video recorded protocol, we show a dissection technique for removing theto gers from adult mouth under sterile microscope. This technique allows us to dissect out and intact whole DTO gels.
The technique is very useful because large amount of proteins, mease and neurons from the enter gel samples can be obtained and used for any assay including transcriptomic, proteomic and CE biology analysis. Here's Dr.Gil. He is demonstrating his excellent tend dissection technique in this move.
He, I watched a movie and was impressed with how skillfully and smoothly you dissect gyrus. You have the technique of an expert. How many times did you have to practice this technique to reach this level of competence?
I had dissect out of vintage GY more than 100 times using this technique, but it probably took me only 20 dissections to reach this level of whiskey. Do you think anybody interested in this technique can acquire this skill? Yes, I do.
But you must have good control over your hands and finger. Are there any chips you can give us or things that we should pay attention to when performing this technique? Yes.When removing the dia pepper, it's very important not to injure the hippocampus or surrounding area.
Such an injury will make it difficult to identify the boundaries between the tenitis and arm's home. Keeping the boundaries in that and patient is crucial. Thank you.Here.
Okay, here we go. Place the brain into HighCo.PVS. Cut the brain along the longitudinal al.
Cut those lesions posterior to laden. Place the cellular penia media the other side up and remove the several. This is measured side of hippocampus.
You can see the boundary of Ditis and the CS three region. Insert a needle chip into Each side of the ditis and slide the needle along with the septic temporal axis of the hippocampus was isolated.I.
Overview
This video-recorded protocol demonstrates a dissection technique for the removal of the dentate gyrus from adult mice under a stereomicroscope. The method allows for the collection of intact samples for various assays.
Key Study Components
Area of Science
- Neuroscience
- Neuroanatomy
- Dissection Techniques
Background
- The hippocampus is crucial for memory processing and neuroplasticity.
- It is involved in various neurological conditions, including epilepsy and neurodegenerative diseases.
- The dentate gyrus is a site of neurogenesis, making it a focus for many researchers.
- Understanding dissection techniques is essential for studying this brain region.
Purpose of Study
- To demonstrate a reliable method for isolating the dentate gyrus.
- To facilitate the collection of samples for biochemical assays.
- To provide insights into the dissection process for researchers.
Methods Used
- Dissection of the dentate gyrus from adult mice.
- Use of a stereomicroscope for precision.
- Careful handling to avoid damage to surrounding brain structures.
- Step-by-step demonstration by an experienced researcher.
Main Results
- The technique allows for the extraction of intact dentate gyrus samples.
- Samples can be used for transcriptomic and proteomic analyses.
- Demonstrated proficiency in dissection technique enhances reproducibility.
- Emphasis on maintaining boundaries during dissection to prevent injury.
Conclusions
- The dissection technique is effective for isolating the dentate gyrus.
- Proper training and practice can lead to skill acquisition in this method.
- Maintaining structural integrity is crucial for successful dissections.
Frequently Asked Questions
Executive Industry Relevance
Precise dissection of the hippocampal dentate gyrus enables high-fidelity molecular profiling critical for early CNS target validation and mechanistic de-risking. This technique supports the generation of region-specific samples for transcriptomic and proteomic assays, increasing predictive confidence in neurobiology-focused drug discovery. Enhanced sensitivity in detecting gene expression changes in the dentate gyrus informs portfolio decisions for neurodegenerative and psychiatric disease programs.
Strategic Applications in Biopharma R&D
Early Discovery & Target Validation
- Enables isolation of dentate gyrus tissue for region-specific mRNA and protein analysis.
- Supports functional target validation by distinguishing gene expression between hippocampal subregions.
- Facilitates mechanistic de-risking by providing accurate molecular readouts from neurogenesis-relevant tissue.
- Improves predictive confidence for CNS target engagement and pathway interrogation.
Screening & Assay Development
- Provides validated tissue samples for downstream transcriptomic and proteomic assay development.
- Ensures reproducibility and standardization by yielding intact, well-defined dentate gyrus samples.
- Enables quantitative assessment of gene expression for assay calibration and screening readiness.
- Supports scalable preparation of samples for high-throughput molecular analyses.
Translational & Preclinical Research
- Aligns molecular findings with disease-relevant hippocampal subregions implicated in CNS disorders.
- Enables continuity from discovery through preclinical validation by supporting biomarker identification in the dentate gyrus.
- Reduces translational risk by ensuring region-specific molecular data informs preclinical models.
- Supports risk-adjusted advancement of CNS therapeutic candidates.
Pipeline & Workflow Integration
This dissection technique integrates into the discovery-to-preclinical continuum by enabling precise tissue isolation for molecular analysis, supporting both early target validation and translational biomarker workflows.
- Discovery Biology: Facilitates hypothesis testing and pathway clarification through region-specific gene expression analysis.
- Screening: Provides standardized samples for reproducible, quantitative molecular assays.
- Analytics: Delivers sensitive mRNA and protein measurements to compare experimental conditions across hippocampal regions.
- Translational Research: Connects molecular findings in the dentate gyrus to disease models and biomarker strategies.
- Enterprise Reuse: Establishes a reusable protocol for CNS tissue isolation across multiple research programs.
Operational & Enterprise Impact
- Scientific Value: Increases predictive confidence and reduces mechanistic ambiguity in CNS target validation.
- Operational Value: Standardizes tissue preparation for reproducible, scalable molecular analyses.
- Strategic Value: Enables informed go/no-go decisions and capital-efficient portfolio management in neurobiology pipelines.
- Portfolio Impact: Supports risk-adjusted prioritization of CNS targets and translational biomarker strategies.
Implementation Considerations
- Requires technical expertise in microdissection and stereomicroscopy.
- Needs access to specialized dissection instruments and molecular assay infrastructure.
- Demands cross-team standardization to ensure reproducibility across studies.
- May require adaptation for different mouse strains or disease models.
- Careful handling is essential to avoid tissue damage and maintain sample integrity.
