Collagenase Activity

Collagenase activity is the enzymatic breakdown of collagen, the structural protein that supports skin, bone, cartilage, and connective tissues. Collagenases cleave peptide bonds within collagen’s tightly packed triple helix; many require metal ions such as zinc for catalysis and calcium for structural stability or activity. In biology, this process enables extracellular matrix remodeling during development, wound healing, and tissue repair, while excessive activity can contribute to inflammation, fibrosis, and tissue destruction. Measuring collagenase activity helps researchers study matrix turnover, investigate disease mechanisms, evaluate inhibitors, and isolate cells from tissues for culture and regenerative medicine.

Collagenase Activity - Related Videos

Research

JoVE Journal - Biology

Isolation of Human Hepatocytes by a Two-step Collagenase Perfusion Procedure

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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.

Intrastriatal Injection of Autologous Blood or Clostridial Collagenase as Murine Models of Intracerebral Hemorrhage

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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.

Pancreatic Islets Isolation through Collagenase Perfusion: An Enzymatic Method to Isolate Pancreatic Islet Cells

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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.

Modeling Intracerebral Hemorrhage in Mice: Injection of Autologous Blood or Bacterial Collagenase

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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.

Research

JoVE Journal - Biology
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Mouse Islet of Langerhans Isolation using a Combination of Purified Collagenase and Neutral Protease

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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.

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