Microglia Conditioned Media
Microglia Conditioned Media - Related Videos
03:37
SEC-based Isolation of Microglia-derived Extracellular Vesicles: A Technique to Isolate Extracellular Vesicles from Microglia Conditioned Culture Media
0 Views •
2023
This video describes a method based on size-exclusion chromatography (SEC) to isolate extracellular vesicles or EVs derived from the brain immune cells―the microglia. The EVs act as molecular cargo to deliver mediators, which regulate an immune response. Therefore, the isolated EVs can be used as an in vitro model to study the microglia-neuron crosstalk during a neuronal immune response.
08:59
Isolation and Culture of Microglia from Rat Brains using Serum-Free Media
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2025
This video demonstrates a method for isolating and culturing microglia from rat brains. It entails separating microglia from other neuronal and non-neuronal cells using plates coated with a monoclonal antibody specific to microglia.
07:33
A Novel Culture Model for Human Pluripotent Stem Cell Propagation on Gelatin in Placenta-conditioned Media
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Cited by 5 •
2015
This protocol provides a simple and efficient way to propagate human pluripotent stem cells (hPSCs) using only conditioned media derived from the human placenta in a gelatin-coated dish without additional exogenous supplementation or hPSC-specific synthetic substrata.
08:32
Flow Cytometric Analysis of Extracellular Vesicles from Cell-conditioned Media
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Cited by 13 •
2019
The protocol describes a reproducible method designed for use with cell culture supernatants to detect surface epitopes on small extracellular vesicles (EV). It utilizes specific EV immunoprecipitation using beads coupled with antibodies that recognize surface antigen CD9, CD63, and CD81. The method is optimized for downstream flow cytometry analysis.
08:37
Microglia as a Surrogate Biosensor to Determine Nanoparticle Neurotoxicity
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Cited by 16 •
2016
Microglia (immune cells of the brain), are used as a surrogate biosensor to determine how nanoparticles influence neurotoxicity. We describe a series of experiments designed to assay microglial response to nanoparticles and exposure of hypothalamic neurons to supernatant from activated microglia to determine neurotoxicity.
FAQs
The released mixture can alter signaling in tumor cells, immune cells, and endothelial cells through cytokines, chemokines, growth factors, and other soluble molecules. In cancer experiments, these signals may be examined for associations with tumor growth, invasion, inflammation, or treatment response. Because the recipient cells encounter the collected medium, researchers can evaluate effects linked to microglial secretions.
Defined culture conditions make the preparation more controlled and help researchers relate observed effects to the microglial secretions present in the collected medium. Consistent conditions support comparisons between experiments and clarify how the resulting signaling environment affects recipient cells. This is especially important when studying complex tumor-microenvironment processes, where several cell types may respond to the same soluble factors.
The collected medium can be applied to another cell system without transferring the microglia themselves. This design focuses the experiment on substances released into the surrounding medium rather than on physical contact between microglia and recipient cells. In cancer research, that distinction helps investigators examine soluble communication affecting tumor, immune, or endothelial cells independently from direct cellular interactions.
Interpretation should account for the mixture of cytokines, chemokines, growth factors, and other molecules released by microglia. A response in recipient cells may therefore reflect combined signaling rather than a single identified factor. Considering the medium as a soluble signaling environment helps researchers connect cellular outcomes with broader processes such as inflammation, invasion, or altered treatment response.
Preparation begins by culturing microglia under defined conditions, allowing released factors to accumulate in the surrounding medium, and then collecting that medium. The collected preparation is subsequently applied to another cell population or experimental system. This workflow preserves exposure to microglia-derived soluble signals while avoiding transfer of the microglial cells themselves.
Researchers apply the preparation to tumor cells, immune cells, or endothelial cells and then examine how those cells respond. Outcomes may include changes related to tumor growth, invasion, inflammation, or responses to treatment. The approach provides a controlled experimental context for evaluating how microglial secretions contribute to communication among cellular components of the tumor microenvironment.
It is useful when investigators want to characterize microglial contributions without introducing microglia directly into the recipient system. Experiments can test effects on tumor-associated signaling, immune-cell behavior, endothelial responses, and treatment-related outcomes. The same strategy also supports study of neural-cell responses, helping place microglial activity in the broader context of cancer-associated communication.