Tissue Supernatant
Tissue Supernatant - Related Videos
01:49
An Assay To Evaluate the Anticancer Effects of Lactobacillus Cell-Free Supernatant
0 Views •
2025
This video demonstrates an in vitro assay to study the anticancer effects of Lactobacillus cell-free supernatant (LCFS). Upon exposing colorectal cancer spheroids to varying doses of LCFS, the interaction with the bacterial metabolites in LCFS induces apoptosis in the cancer cells, disrupting the spheroid structure and leading to cell death in a dose-dependent manner.
03:40
Heparin Affinity Chromatography-Based Baculovirus Purification: A Technique to Isolate Baculovirus From Insect Cell Supernatant
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2025
In this video, we demonstrate the technique to isolate baculovirus from an insect cell supernatant using heparin affinity chromatography. The isolation is facilitated by the affinity between the heparin in the column to the baculovirus envelope glycoprotein.
07:48
Working with Human Tissues for Translational Cancer Research
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Cited by 4 •
2015
Translational cancer research is dependent on extraction of human tissues. Much work has gone into optimizing extraction methods for ex vivo analysis. Here, we describe tissue processing methods allowing for maximal data output from limited samples.
11:12
Tissue Engineering of a Human 3D in vitro Tumor Test System
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Cited by 34 •
2013
Methods to create human 3D tumor tissues as test systems are described. These technologies are based on a decellularized Biological Vascularized Scaffold (BioVaSc), primary human cells and a tumor cell line, which can be cultured under static as well as under dynamic conditions in a flow bioreactor.
06:07
Evaluating Cell Death Using Cell-Free Supernatant of Probiotics in Three-Dimensional Spheroid Cultures of Colorectal Cancer Cells
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Cited by 15 •
2020
Here methods are presented to understand anti-cancer effects of Lactobacillus cell-free supernatant (LCFS). Colorectal cancer cell lines show cell deaths when treated with LCFS in 3D cultures. The process of generating spheroids can be optimized depending on the scaffold and the analysis methods presented are useful for evaluating the involved signaling pathways.
FAQs
The liquid fraction can contain cytokines, antibodies, enzymes, and microbial products. These molecules may have been present in the tissue or released during tissue disruption, so their measurement provides information about local biological activity. Together, they can indicate inflammatory signaling, immune-cell activity, tissue damage, or infection-related processes within the sampled tissue.
Processing conditions influence which soluble signals are recovered and how consistently samples can be compared. Tissue is handled under defined conditions, then centrifuged or otherwise clarified to remove cells, debris, and other particulate material. Consistent disruption and clarification are therefore important because differences in preparation can affect the composition of the liquid fraction being analyzed.
Soluble molecules collected from tissue provide a direct view of signals present at the site of inflammation or infection. Cytokines can reflect inflammatory activity, while antibodies and enzymes provide complementary information about immune responses and tissue damage. This local molecular information helps connect tissue-level events with the activity of immune cells and disease processes.
Researchers can measure soluble signals across different experimental conditions and examine whether their levels change with disease progression or treatment. Comparing cytokines, antibodies, enzymes, or microbial products can reveal differences in inflammation, immune activity, pathogen-related responses, or tissue injury. The resulting patterns help associate molecular changes with specific experimental outcomes.
A typical workflow begins by disrupting or homogenizing the tissue under defined conditions. The processed material is then centrifuged or clarified by another method so insoluble cells, debris, and particulate material are removed. The recovered liquid is retained for downstream measurement of soluble biological signals relevant to the tissue and experimental question.
This sample type is useful when investigators need to examine molecular activity within a tissue rather than assess only its solid components. In immunology, it supports analysis of local inflammation and immune-cell activity. In infection research, it can contribute to evaluating pathogen burden and microbial products, while also helping assess associated tissue damage.
Analysis can generate molecular readouts that help characterize inflammation, immune responses, pathogen-associated activity, and tissue injury. When these measurements are compared across experimental groups, they can show how biological responses differ between conditions. Linking the results with disease progression or treatment effects can clarify whether molecular changes accompany worsening disease or a response to intervention.