Organelle Visualization
Organelle Visualization - Related Videos
08:38
Visualization and Live Imaging of Oligodendrocyte Organelles in Organotypic Brain Slices Using Adeno-associated Virus and Confocal Microscopy
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Cited by 7 •
2017
Myelinating oligodendrocytes promote rapid action potential propagation and neuronal survival. Described here is a protocol for oligodendrocyte-specific expression of fluorescent proteins in organotypic brain slices with subsequent time-lapse imaging. Further, a simple procedure for visualizing unstained myelin is presented.
08:37
Visualization of Organelles In Situ by Cryo-STEM Tomography
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Cited by 6 •
2023
Cryo-STEM tomography provides a means to visualize organelles of intact cells without embedding, sectioning, or other invasive preparations. The 3D resolution obtained is currently in the range of a few nanometers, with a field of view of several micrometers and an accessible thickness in the order of 1 µm.
00:07
Visualizing and Analyzing Intracellular Transport of Organelles and Other Cargos in Astrocytes
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Cited by 4 •
2019
Here we describe an in vitro live-imaging method to visualize intracellular transport of organelles and trafficking of plasma membrane proteins in murine astrocytes. This protocol also presents an image analysis methodology to determine cargo transport itineraries and kinetics.
08:55
Visualizing Cytoskeleton-Dependent Trafficking of Lipid-Containing Organelles in Drosophila Embryos
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Cited by 5 •
2021
In the early Drosophila embryo, many organelles are motile. In principle, they can be imaged live via specific fluorescent probes, but the eggshell prevents direct application to the embryo. This protocol describes how to introduce such probes via microinjection, and then analyze bulk organelle motion via particle image velocimetry.
15:39
Studying Organelle Dynamics in B Cells During Immune Synapse Formation
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Cited by 8 •
2019
Herein we describe two approaches to characterize cell polarization events in B lymphocytes during the formation of an IS. The first, involves quantification of organelle recruitment and cytoskeleton rearrangements at the synaptic membrane. The second is a biochemical approach, to characterize changes in composition of the centrosome, which undergoes polarization to the immune synapse.
FAQs
These approaches create contrast in different ways. Fluorescent dyes and genetically encoded tags make selected structures or activities easier to distinguish, whereas label-free optical methods obtain contrast without an added marker. The choice depends on whether the experiment prioritizes targeted visualization, monitoring changes associated with engineered genetic modifications, or observing cells without introducing a labeling step.
Organelle visualization should align image resolution and acquisition timing with the biological question. Light microscopy can support observations of dynamic behavior, while electron microscopy provides a different spatial scale for examining cellular organization. Matching the imaging approach to morphology, transport, or interaction measurements helps ensure that the resulting images capture the relevant structural or temporal features.
Quantitative analysis converts visible structural changes into measurements that can be compared across conditions. Changes in organelle morphology, organization, dynamics, or interactions may then be related to cellular function. In bioengineering, this connection helps evaluate how a designed material or genetic modification affects cells rather than relying only on qualitative impressions from representative images.
A practical workflow begins by identifying the organelle feature or cellular behavior that must be measured, then selecting a compatible contrast strategy and microscopy scale. Researchers acquire images with fluorescent, genetically encoded, or label-free methods and analyze the resulting organization, morphology, dynamics, or interactions. The final comparison links those measurements to the experimental engineering condition.
It is useful when engineered systems depend on precise control of cell behavior. Researchers can apply it to study therapeutic delivery systems, synthetic cells, and tissue models, where organelle structure and activity provide evidence of cellular responses. Imaging can show whether a design is associated with desired intracellular organization or with changes that may affect system performance.
By tracking organelle morphology, intracellular transport, metabolic activity, or interactions, visualization provides measurable indicators of how cells respond to an intervention. Comparing these features before and after an engineered material or genetic modification can connect the intervention with changes in cellular organization and function. This evidence supports refinement of bioengineered systems and experimental designs.