Secretome Isolation
Secretome Isolation - Related Videos
09:14
Human Adipose Tissue Micro-fragmentation for Cell Phenotyping and Secretome Characterization
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Cited by 11 •
2019
Here, we present human adipose tissue enzyme-free micro-fragmentation using a closed system device. This new method allows the obtainment of sub-millimeter clusters of adipose tissue suitable for in vivo transplantation, in vitro culture, and further cell isolation and characterization.
08:09
Vasodilation of Isolated Vessels and the Isolation of the Extracellular Matrix of Tight-skin Mice
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Cited by 1 •
2017
We describe the isolation of cardiac extracellular matrix from C57Bl/6J control mice, tight-skin mice, and tight-skin mice treated with the IRF5 inhibitory peptide. We also describe the vasodilation studies on the isolated vessels from C57Bl/6J, tight-skin mice and tight-skin mice treated with the IRF5 inhibitory peptide.
07:12
Neutrophil Isolation Protocol
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Cited by 173 •
2008
Neutrophils are among the first cells to arrive on the site of inflammatory immune response, and their functions and mechanisms have been studied extensively in vitro. We demonstrate a standard density gradient separation method to isolate human neutrophils from whole blood using commercially available separation media.
13:24
An Optimized Enrichment Technique for the Isolation of Arthrobacter Bacteriophage Species from Soil Sample Isolates
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Cited by 31 •
2015
We present an enrichment protocol for the isolation of bacteriophages infecting bacteria in the Arthrobacter genus. This enrichment protocol produces fast and reproducible results for the isolation and amplification of Arthrobacter phages from soil isolates.
05:09
Mitochondrial Isolation: A Technique to Isolate Mitochondria from Human Ovarian Cancer Tissue Sample
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2023
This video describes the procedure for isolating mitochondria from human ovarian cancer tissues using differential-speed centrifugation in combination with density gradient centrifugation. The isolated mitochondria can be used for proteomic analysis of human ovarian cancer mitochondrial proteome.
FAQs
Secretome isolation can capture proteins, peptides, extracellular vesicles, and other released factors rather than focusing on a single molecular class. Examining these components together helps researchers assess how cells communicate with neighboring cells and modify their local microenvironment. This broader view is relevant to signaling, immune responses, tissue repair, and identifying candidate biomarkers.
Defined culture conditions provide a consistent setting for comparing what cells release. If disease, stress, or an experimental treatment changes the composition of the conditioned medium, those differences can be examined against the chosen baseline. This makes the secretome useful for linking an external condition to altered cell communication or microenvironmental influence.
Comparing secretomes from different biological conditions can reveal changes in released proteins, peptides, extracellular vesicles, or other factors. Analytical measurements show whether the composition of the surrounding medium differs after disease-associated changes, stress, or experimental treatment. These comparisons help connect cellular responses with altered signaling and interactions in the local environment.
Removing cells and debris before concentration helps focus the sample on material present in the surrounding medium rather than obvious cellular contaminants. Centrifugation and filtration serve this cleanup stage, after which soluble components can be concentrated for downstream characterization. This sequence makes the collected material more suitable for comparing secretome composition across experimental conditions.
Different analytical approaches answer different questions about the collected material. Protein assays can indicate overall protein content, whereas mass spectrometry can characterize composition more broadly, and immunoblotting can examine selected proteins. Using these readouts allows researchers to evaluate both general changes and specific molecular signals associated with a biological condition.
Secretome isolation is useful when the research question concerns how cells affect their surroundings. Applications include studying cell-to-cell communication, signaling, tissue repair, immune responses, and biomarker discovery. In each case, analyzing released factors can connect cellular behavior with changes in the extracellular environment, rather than examining cells in isolation.