Subcellular Component Analysis
Subcellular Component Analysis - Related Videos
12:14
Subcellular Fractionation for the Isolation of Synaptic Components from the Murine Brain
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Cited by 7 •
2022
This protocol presents a robust, detailed method to obtain highly pure synaptosomes, synaptic vesicles, and other synaptic fractions from the mouse brain. This method enables the evaluation of synaptic processes, including the biochemical analysis of protein localization and function with compartmental resolution.
11:50
Fiber Type and Subcellular-Specific Analysis of Lipid Droplet Content in Skeletal Muscle
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Cited by 3 •
2022
Increasing evidence indicates that excessive infiltration of lipids inside skeletal muscle results in lipotoxicity and diabetes. Here, we present a complete protocol, including tissue processing, staining with Bodipy, image acquisition, and analysis, to quantify the size, density, and subcellular distribution of lipid droplets in a fiber-type specific manner.
11:19
Imaging Subcellular Structures in the Living Zebrafish Embryo
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Cited by 8 •
2016
Imaging the dynamic behavior of organelles and other subcellular structures in vivo can shed light on their function in physiological and disease conditions. Here, we present methods for genetically tagging two organelles, centrosomes and mitochondria, and imaging their dynamics in living zebrafish embryos using wide-field and confocal microscopy.
04:10
Measuring Proteasome Activity in Different Subcellular Compartments of the Rat Brain
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2025
This video demonstrates how to measure proteasome activity in different subcellular compartments of the lateral amygdala from fear-conditioned and control rat brains using a fluorogenic peptide assay. The proteasome cleaves the fluorogenic peptide substrate, releasing fluorescent molecules, which are quantified using a plate reader to assess proteasome activity in the nuclear and synaptic protein fractions. Increased nuclear activity suggests changes in gene expression, while reduced synaptic...
07:14
Subcellular Imaging of Neuronal Calcium Handling In Vivo
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Cited by 4 •
2023
The current methods describe a non-ratiometric approach for high-resolution, sub-compartmental calcium imaging in vivo in Caenorhabditis elegans using readily available genetically encoded calcium indicators.
FAQs
Fluorescence microscopy and immunolabeling preserve spatial information, allowing researchers to determine where a molecule or organelle is located within a cell. Biochemical fractionation instead separates cellular material into fractions for subsequent measurement, while mass spectrometry can quantify molecular abundance and support interaction analysis. Choosing among them depends on whether localization, isolation, abundance, or molecular relationships are the primary readout.
The methods are complementary because they answer different experimental questions. Fluorescence microscopy and immunolabeling provide localization information, fractionation creates separable material for analysis, and mass spectrometry measures molecular abundance while contributing to interaction characterization. Combining readouts can connect a component’s position with its quantity or molecular relationships, producing a more informative assessment than relying on one measurement alone.
Defined experimental conditions make it possible to examine cellular changes associated with a specific genetic or chemical intervention. Measurements can then show whether organelle structure, protein distribution, or signaling pathways have changed under those conditions. This is especially relevant when engineered cells or delivery systems are being evaluated, because the analysis links an intervention to measurable intracellular effects rather than only to an intended design.
A practical workflow begins by identifying whether the study requires localization, isolation, abundance measurement, or interaction characterization. Researchers then select fluorescence microscopy, immunolabeling, biochemical fractionation, mass spectrometry, or a combination of these approaches. Applying the selected analysis under defined conditions yields measurements that can be related to cellular organization and function in the engineered or experimental system.
In bioengineering, subcellular readouts can reveal whether an engineered cell, biomaterial, or intracellular delivery system produces the intended intracellular changes. Researchers can examine organelle structure, protein distribution, and signaling pathways after a genetic or chemical intervention. These measurements help connect the performance of a designed system with its effects inside cells, supporting more precise evaluation and refinement.
These analyses support several bioengineering and biomedical uses. They can contribute to the evaluation of cell-based therapeutics, the construction of disease models, and the development of biosensors. They also inform systems designed to control cellular behavior by revealing how interventions affect intracellular organization, molecular distribution, or signaling. Thus, the measurements provide intracellular context for developing systems that control cellular behavior with greater precision.