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PRG-1 EDTA-dPBS Solution (4Z0-610) - Cell Systems

Regular price $55.00

PRG-1 (EDTA-dPBS Solution 1X), 100ml

The Passage Reagent Group™ (PRG) is a matched set of CSC Certified™ reagents for releasing cells from culture for subculture or freezing. The PRG contains three parts: PRG-1™ (EDTA-dPBS Solution), PRG-2™ (Trypsin/EDTA-dPBS Solution) and PRG-3™ (Trypsin Inhibitor-dPBS Solution). The chelating agent EDTA in PRG-1™ prepares for PRG-2™, which contains highly purified trypsin. PRG-3™ inactivates the protease in PRG-2™ and stabilizes the cell membranes. 
Cell membranes are materially and cumulatively damaged whenever cells are exposed to serine proteases, physically manipulated, centrifuged, and/or frozen. Use of the PRG greatly minimizes damage and stress to cells during passage or freezing of cell cultures.
PRG-1™ (EDTA-dPBS Solution) prepares the cells for PRG-2™ processing.

Instructions for Use

Passaging cells with the PRG is as easy as 1-2-3:  
1. Thaw the three PRG reagents, and store +4°C. Expiration date refers to frozen storage.  
2. Warm PRG-1™ and PRG-2™ to 37°C. Keep PRG-3™ in ice-water bath for triple-point temperature.  
3. Remove and discard the culture medium gently add PRG-1™ sufficient to completely cover the cells.  
4. Remove and discard the PRG-1™ and immediately add an equal volume of PRG-2. 
5. Return the culture to the incubator until cells round up but have not detached (0.5 to 2 min).  
6. Release the cells by sharply rapping the culture vessel.  
7. Immediately add a volume of ice-cold PRG-3™ equal to the volume of PRG-2™ used. 
8. Remove fluid down to the cell pellet, leaving about 50-100μl of fluid covering the cells.  
9. Loosen the pellet by flicking the tube sharply with a finger. Avoid bubbles.  
10. Count the cells now (if desired) and adjust.15. Incubate 37°C, 5% CO2, 100% humidity. Feed using Cell Systems Medium Kit.
11. Resuspend the cells in Cell Systems Complete Medium (warmed to 37°C) and seed the new culture. Use of Attachment Factor™ (cat. #4Z0-210) to coat the flask is highly recommended prior to resuspension.
12. Incubate 37°C, 5% CO2, 100% humidity. Feed using Cell Systems Medium Kit.

Handling and Storage

Store at -20°C.  Once opened, shelf life is 30 days at +4-8°C
Cell Systems media and reagents are made with WFI, all components are cGMP and ISO Compliant, and are classed "Sterile".