Uses

Liberase^? TL (Thermolysin Low) Research Grade is used for the dissociation of a broad range of tissue types, where high purity of the enzyme blend is necessary for high cell yield and viability. Bacterial by-products, such as endotoxins, are reduced up to several thousand-fold.
This product has been used for the isolation of pancreatic islets from mice.

General Description

The most commonly used method for decellularization procedures, such as tissue dissociation and cell harvesting, is based on the use of proteolytic enzymes. Proteases disrupt the extracellular matrix of tissue to allow the release of individual cells or the harvesting of cultured cells for transfer. The goal of cell isolation is to maximize the yield of dissociated cells that are viable and functionally active.

Liberase Purified Enzyme Blends
Liberase enzymes are blends of highly purified enzymes, designed to increase the quality and reproducibility of tissue dissociation, and improve the viability and functionality of isolated cells. Liberase Purified Enzyme Blends replace traditional collagenase, which is a crude and variable fermentation by-product of Clostridium histolyticum.

Liberase Enzyme Technology
Liberase enzyme technology comprises methods for purifying clostridial collagenase isoforms to high specific activity, and for blending them together with high-specific-activity neutral protease in optimal ratios for effective dissociation of primary tissues and cultured cells.
For additional information, such as manufacturing, technology, or storage, see the Liberase Research Grade Insightsdocument. Further reading on the topic can also be found in the Documents tab.
Roche provides special-quality preparations of Liberase Purified Enzyme Blends, manufactured to meet GMP requirements. For more information on the GMP-grade preparations.
Important Notes:

• This product is intended for life science research and in vitro use only. These products are not to be used for diagnostic or clinical applications, such as human islet transplantation.
• All 1st generation Liberase and Liberase Blendzyme products (Liberase HI, CI, RI, PI, Liberase Blendzyme 1, 2, 3, 4) have been replaced by the 2nd generation Liberase Research Grade and Liberase GMP grade enzyme blend portfolios. For instructions concerning the transition from previously used Liberase Enzymes.