Collagenase Incubation
Collagenase Incubation - Related Videos
09:41
Intrastriatal Injection of Autologous Blood or Clostridial Collagenase as Murine Models of Intracerebral Hemorrhage
0 Views •
Cited by 35 •
2014
Preclinical models of intracerebral hemorrhage are utilized to mimic certain aspects of clinical disease. Thus, mechanisms of injury and potential therapeutic strategies may be explored. In this protocol, two models of intracerebral hemorrhage are described, intrastriatal (basal ganglia) injections of autologous blood or collagenase.
07:09
Isolation of Human Hepatocytes by a Two-step Collagenase Perfusion Procedure
0 Views •
Cited by 93 •
2013
A modified two-step collagenase perfusion procedure for isolation of human hepatocytes is described. This method can also be applied to other mammalian livers. The isolated hepatocytes are available in high yield and viability, making them a suitable model for scientific research in areas such as liver regeneration, pharmacokinetics and toxicology.
07:21
Pancreatic Islets Isolation through Collagenase Perfusion: An Enzymatic Method to Isolate Pancreatic Islet Cells
0 Views •
2023
Pancreatic islets, also called the Islets of Langerhans, are a cluster of endocrine cells which produces hormones for glucose regulation and other important biological functions. This protocol explains a method for isolating pancreatic islets by first perfusing collagenase via Ampulla of Vater to digest the exocrine pancreatic tissue and a simplified density gradient centrifugation to purify the islets from mice.
06:59
Mouse Islet of Langerhans Isolation using a Combination of Purified Collagenase and Neutral Protease
0 Views •
Cited by 103 •
2012
A detailed description of mouse islet isolation is described using the technique of in situ pancreatic ductal cannulation and perfusion of a combination of purified collagenase and neutral protease.
10:44
Modeling Intracerebral Hemorrhage in Mice: Injection of Autologous Blood or Bacterial Collagenase
0 Views •
Cited by 60 •
2012
Clinically relevant animal models of intracerebral hemorrhage (ICH) are needed to extend our knowledge of hemorrhagic stroke and to examine novel therapeutic strategies. In this study, we describe and evaluate two ICH models that implement unilateral injections of either autologous whole blood or bacterial collagenase into the basal ganglia (corpus striatum) of mice.
FAQs
Collagenase incubation changes tissue structure by cleaving peptide bonds within collagen fibers, a major component of the extracellular matrix. This enzymatic action loosens the framework surrounding cells, making tumor tissue more accessible for downstream analysis. The extent of matrix disruption influences whether the resulting preparation contains more individually released cells or small cell clusters.
Enzyme exposure, temperature, and incubation duration must be controlled together. Increasing or prolonging exposure may improve tissue loosening, but the overview emphasizes balancing dissociation with preservation of cell viability and surface markers. That balance determines whether released cells remain suitable for downstream applications such as culture, flow cytometry, or molecular analysis.
Preserving surface markers matters because these features can support characterization of released tumor cells and associated populations. If processing conditions are too disruptive, the resulting preparation may be less suitable for flow cytometry, where surface-marker information helps distinguish cell populations. Controlled incubation therefore protects not only cell survival but also the interpretability of phenotypic measurements.
Both formats provide greater access to tumor biology than cells embedded within intact tissue. Single cells facilitate examination of individual populations, while small clusters provide an alternative preparation for studying the processed specimen. Making cells accessible in either form supports investigation of cancer heterogeneity and relationships between tumor cells and their microenvironment.
Researchers expose the tumor specimen to collagenase under carefully controlled conditions, particularly enzyme exposure, temperature, and duration. After the tissue is loosened, the released cells or small clusters can enter a selected downstream workflow. The preparation may then support primary culture, flow cytometry, molecular analysis, or organoid establishment, depending on the research goal.
Processed tumor material can support primary cell culture, flow cytometry, molecular analysis, and organoid establishment. These applications use the released material for different experimental purposes, including maintaining primary cells, examining cellular features, performing molecular studies, or creating organoid models. This versatility allows one tissue-processing approach to contribute to several cancer research workflows.
By making tumor cells and their microenvironment more accessible as single cells or small clusters, the method enables researchers to examine variation within a specimen rather than treating the tumor as uniform. The resulting preparations can support analyses connected to heterogeneity, treatment response, and disease progression, linking tissue processing to broader questions in cancer biology.