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Gibco™ ExpiCHO-S™ Cells
ExpiCHO-S™ Cells are derived from a non-engineered subclone that has been screened and isolated from CHO-S Chinese hamster ovary (CHO) cells.
Supplier: Gibco™ A29127
Description
ExpiCHO-S™ Cells are derived from a non-engineered subclone that has been screened and isolated from CHO-S Chinese hamster ovary (CHO) cells (1). They are a core component of the ExpiCHO™ Expression System Kit (Cat. No. A29133). ExpiCHO-S Cells are maintained in suspension culture, have minimal tendency to clump, and grow to high density in ExpiCHO™ Expression Medium (Cat. No. A2910001). As part of the ExpiCHO Expression System Kit, the cells generate superior protein yields by transient transfection compared to standard CHO, 293, and high-density Expi293F™ cells.
ExpiCHO-S™ Cells:
- Allow you to attain yields of up to 3 g of protein per L of transfected culture as part of the ExpiCHO expression system
- Enable rapid, high-yield transient protein production, allowing labs developing protein biotherapeutics to work with CHO-expressed proteins from start to finish in the drug development process
- Are adapted to high-density suspension growth in ExpiCHO Expression Medium
- Exhibit rapid doubling times of approximately 17 hours
- Enable consistent transient expression performance for 20 passages after thaw
- Maintain high cell viability and productivity for greater than 10 days post-transfection as part of the ExpiCHO expression system
- Also available from a cGMP bank (Cat. No. A37785)
Frozen cells are supplied in a vial containing 1 mL of cells at 1 x 107 viable cells per mL in ExpiCHO Expression Medium and 10% DMSO. The cells should be thawed directly into ExpiCHO Expression Medium. The 6-vial multipack eliminates the need to expand and bank the cells in the lab.
Cells are typically grown in flasks on a shaker platform in a humidified, CO2 cell culture incubator. However, cultures are scalable from volumes of 10 L in bioreactors. Protein harvest can be performed at 5 to 14 days post-transfection, depending on the protein expressed.
References
1. Wurm, FM. CHO Quasispecies—Implications for Manufacturing Processes (2013) Processes 1:296-311.
Specifications
1 x 107 cells/mL Store in liquid nitrogen. |
|
Suspension Cell Culture | |
Hamster | |
Expression | |
ExpiCHO™ | |
1 mL |
CHO-S, SFM Adapted | |
Cryopreserved | |
1 vial | |
1 x 107 | |
CHO-S Cell | |
Dry Ice |
Safety and Handling
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For Research Use Only. Not for use in diagnostic procedures.