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CD OptiCHO™ AGT™ Medium Gibco™

CD OptiCHO™ medium is specifically designed to offer high performance and yield with recombinant CHO cells in a chemically defined fed-batch environment. The protein-free, animal origin free formulation is designed to provide consistency and reduces the need to screen for adventitious agents. CD OptiCHO™ medium builds on Gibco® CD CHO’s legacy of consistent cell growth and titers, while offering up to 40% better titer and cell growth over select competitors. Thanks to its low osmolality and advanced CHO CD EfficientFeed™ Liquid Nutrient Supplement Kit feeding options, CD OptiCHO™ medium is capable of gaining 2-5 fold increases in fed-batch productivity over batch culture.

When to Use CD OptiCHO™ Medium
• You are using a transfected CHO cell line other than CHO K1, GS CHO or CHO-S™ cell lines
• Optimization of feeding strategies will be part of your base medium selection testing in an effort to maximize productivity
• Your CHO cell line is “finicky," i.e. hard to grow or adapt

When to Consider Another Gibco® Medium

Consider CD FortiCHO™ medium when:
• The cell line you are using is a transfected CHO K1, GS CHO or CHO-S™ cell line
• Maximum batch culture cell densities and protein titers are needed
• You have time to adapt cells into a new medium in an effort to maximize titers
• Cell health at harvest is a priority for downstream processing

Consider CD CHO medium when:
• Your GS CHO cells are recommended to be grown in CD CHO medium
• Your cells have been successfully cultured in CD CHO medium in the past and your process is nearing a regulatory filing (DMF available)

Consider CD DG44 medium when:
• You use parental DG44 or DXB11 CHO cells (dhfr-)

Liquid Media Formulations
Gibco® AGT™ media are also available in a liquid format that offers the same performance and formulation as the AGT™ media format. Gibco® liquid media are manufactured animal origin-free with the same complete, serum-free, protein-free, chemically-defined formulation and performance as their AGT™ media counterparts.

Design Your Own Media Specific to Your Needs
Whether it’s a bench-level experiment or large scale biomanufacturing process, we offer specialized formats, packaging, and quality levels specific to your needs. With Gibco® cGMP Media Custom Services you can put the manufacturing power and years of technical experience of our R&D and Bioproduction Application Specialists to work for you.

EfficientFeed™ B+ AGT™ Supplement Gibco™

Gibco® EfficientFeed™ B+ (Plus) AGT™ Supplement is a dry-format, single-part supplement for fed batch addition to the culture of multiple cell lines to assist with process development and maximization of bioreactor utilization. Compared to original CHO CD EfficientFeed™ B AGT™ nutrient supplement, EfficientFeed™ B+ supplement has components that are uniquely combined to allow simpler single-part pH-neutral reconstitution, as well as the ability to super-concentrate the supplement from 52.7 g/L (1X) to 158.1g/L (3X) for reduction of product dilution or increased titers with additional feeding, when appropriate. The product is an animal origin-free, chemically defined formulation that contains no proteins, hydrolysates, or components of incompletely defined composition.

Which EfficientFeed™ + Supplement to Choose?

Consider EfficientFeed™ B+ AGT™ Supplement when:
• You have used CHO CD EfficientFeed™ B supplement in the past and wish to explore simpler reconstitution and super-concentration benefits of new technology for delivery of key components
• You are currently using CD CHO as your base cell growth medium

Consider EfficientFeed™ A+ AGT™ Supplement when:
• You have used CHO CD EfficientFeed™ A supplement in the past and wish to explore simpler reconstitution and super-concentration benefits of new technology for delivery of key components
• You are currently using CD OptiCHO™ as your base cell growth medium

Consider EfficientFeed™ C+ AGT™ Supplement when:
• You have used CD EfficientFeed™ C supplement in the past and wish to explore simpler reconstitution and super-concentration benefits of new technology for delivery of key components
• You want higher productivity in GS CHO, CHO-K1, & CHO-S® derived cell lines
• You are currently using CD FortiCHO™ as your base cell growth medium
• You are using a base medium with greater than 6 g/L glucose or a hydrolysate at day 0

Increasing Titers
As a complete feed, EfficientFeed™ + supplements have been shown to provide multiple-fold increases in titers at 1X concentration versus batch culture, and are an excellent starting point for process development. Flexibility to further increase titers are enhanced with the ability to super-concentrate the product by reconstituting with less water to deliver up to 158 g/L of fed nutrients (see figure).

Maximizing Bioreactor Utilization
Have you ever wished you could have more working volume at the start of a bioreactor run to get more protein produced, but needed too much feeding volume space to accomplish your optimal goal? Have you ever thought that room for a little more feeding might get you to a new level of titer from a process and maybe even reduce the number of bioreactor runs that might be needed per year? In either of these cases, it is important to have the flexibility to super-concentrate your feeding supplements so you get less product dilution, more space for an additional feeding, and/or more working volume to start your run (see figure). In fact, you may gain about 20% more bioreactor utilization by exploring the unique ability to super-concentrate this EfficientFeed B+ product.

Simplified Handling to Reduce Risk in Scale-Up
The ability to scale up in an AGT™ dry format provides ease of handling and storage in manufacturing and other bioprocess settings. Fewer parts and steps in reconstitution mean fewer opportunities for operator error. Further, ability to store this feed, even when super-concentrated, for the length of a bioreactor run at room temperature, in the dark, may allow you fewer chances of contamination during closed system connections by reducing the number of connections to the bioreactor to one.

CD CHO Medium Gibco™

CD CHO medium is a protein-free, serum-free, chemically-defined medium optimized for the growth of Chinese hamster ovary (CHO) cells and expression of recombinant proteins in suspension culture. With a proven track record of quality for more than 10 years, CD CHO medium contains no proteins or peptide components of animal, plant, or synthetic origin, as well as no undefined lysates or hydrolysates.

When to Use CD CHO Medium
• Your GS CHO cells are recommended to be grown in CD CHO medium
• Your cells have been successfully cultured in CD CHO medium in the past and your process is nearing a regulatory filing (DMF available)

When to Consider Another Gibco® Medium

Consider CD FortiCHO™ medium when:
• The cell line you are using is a transfected CHO K1, GS CHO or CHO-S™ cell line
• Maximum batch culture cell densities and protein titers are needed
• You have time to adapt cells into a new medium in an effort to maximize titers
• Cell health at harvest is a priority for downstream processing

Consider CD OptiCHO™ medium when:
• You are using a transfected CHO cell line other than CHO K1, GS CHO or CHO-S™ cell lines
• Optimization of feeding strategies will be part of your base medium selection testing in an effort to maximize productivity
• Your CHO cell line is “finicky," i.e. hard to grow or adapt

Consider CD DG44 medium when:
• You use parental DG44 or DXB11 CHO cells (dhfr-)

Dry Media Formulations
Gibco® liquid media are available in an AGT™ (Advanced Granulation Technology) dry media format that is designed to provide increased consistency and productivity across all stages of production from development to commercial manufacturing. AGT™ media are manufactured animal origin-free with the same complete, serum-free, protein-free, chemically-defined formulation and performance as their liquid media counterparts.

Design Your Own Media Specific to Your Needs
Whether it’s a bench-level experiment or large scale biomanufacturing process, we offer specialized formats, packaging, and quality levels specific to your needs. With Gibco® cGMP Media Custom Services you can put the manufacturing power and years of technical experience of our R&D and Bioproduction Application Specialists to work for you.

Dynamis™ AGT™ Medium Gibco™

Gibco® Dynamis™ AGT™ dry format medium is specifically designed to offer the highest batch and fed-batch culture performance and yield with recombinant CHO cells in a chemically defined environment. The chemically defined, protein-free, animal origin component-free formulation provides the power to achieve high titers, start process development faster, and streamline or simplify transfer to manufacturing scale.

Power to achieve higher titers
Dynamis™ AGT™ Medium is fortified to help maximize recombinant CHO cell growth and protein expression in suspension batch culture, offering 170% greater production than select competitive media with simple glucose supplementation by day 14. Cultures grown in Dynamis™ AGT™ Medium extend to even higher titers demonstrating good cell viability out to day 21. This medium can also provide up to 60% greater fed-batch growth and production over glucose-only fed-batch culture for selected cell lines and applications when used with EfficientFeed™ C+ AGT™ Supplement.

Power to start process development faster
As a fortified medium, Dynamis™ AGT™ provides the power to get to a high cell density over 10 million cells per mL faster than competitive products and sustains that cell density longer by just maintaining glucose levels. The viable cell growth achieved make it a good choice for scale-up if you have started with CD FortiCHO™ medium. When paired with EfficientFeed™ C+ AGT™ Supplement, it provides a fast and efficient way to develop a process.

The power to streamline transfer to manufacturing
By choosing Dynamis™ AGT™ Medium, you obtain not only the benefits of the medium formulation, but also the benefits of AGT™ dry format technology. This all-in-one product is designed to simplify scale-up and manufacturing by being easy to reconstitute (just add water), with no adjustments of pH or osmolarity necessary. This can help provide efficiencies through supply chain simplicity, reconstitution simplicity, and therefore help reduce expense.

Use Dynamis™ AGT™ Medium when:
• The cell line you are using is a transfected CHO K1, GS CHO, or CHO-S™ cell line
• Maximum batch culture cell densities and protein titers are needed
• You have time to adapt cells into a new medium in an effort to maximize titers
• Cell health at harvest is a priority for downstream processing

When to consider another Gibco® medium

Consider CD OptiCHO™ Medium when:
• You are using a transfected CHO cell line other than CHO K1, GS CHO, or CHO-S™ cell lines
• Optimization of feeding strategies will be part of your base medium selection testing in an effort to maximize productivity
• Your CHO cell line is hard to grow or adapt

Consider CD CHO Medium when:
• Your GS CHO cells are recommended to be grown in CD CHO medium
• Your cells have been successfully cultured in CD CHO medium in the past and your process is nearing a regulatory filing (DMF available)

Consider CD DG44 Medium when:
• You use parental DG44 or DXB11 CHO cells (dhfr-)

Design your own media specific to your needs
Whether it’s a bench-level experiment or large-scale biomanufacturing process, we offer specialized formats, packaging, and quality levels specific to your needs. With Gibco® cGMP Media Custom Services, you can put the manufacturing power and years of technical experience of our R&D and Bioproduction Application Specialists to work for you.

Gibco® is a registered trademark of ThermoFisher Scientific Inc. Dynamis™ and CD FortiCHO™ are trademarks of Thermo Fisher Scientific Inc., ActiCHO(TM) is a trademark of GE Healthcare Biosciences AB, BalanCD(R) is a registered trademark of Irvine Scientific Sales Co., Cellvento(R) is a registered trademark of Merck KGAA, EXCELL(R) is a registered trademark of SAFC, HyCell(R) is a registered trademark of GE Healthcare Biosciences AB, and PowerCHO(TM) is a registered trademark of Lonza.

ExpiCHO™ Expression Medium Gibco™

ExpiCHO™ Expression Medium is a GMP-manufactured, chemically-defined, serum-free, protein-free, animal origin–free medium specifically designed for high-density growth and transfection of suspension-adapted Chinese hamster ovary (CHO) cells. It is a core component of the ExpiCHO™ Expression System Kit (Cat. No. A29133) for scalable transient protein production.

ExpiCHO Expression Medium:
• Supports growth of suspension CHO cultures to densities of over 2 x 107 cells per mL, with >95% cell viability
• Uses a transfection-compatible, serum-free suspension culture medium that enables high transfection efficiencies of >90% with ExpiFectamine™ CHO transfection reagent
• Supports transient transfection of suspension CHO cells at a density of 6 x 106 cells per mL
• Facilitates sustained, high-level expression of high-density transiently transfected cultures, achieving yields of up to 3 g per L of recombinant protein
• Supports growth and transfection of CHO cells in culture formats from <1 mL in multi-well plates to >10 L in benchtop bioreactors
• Does not contain phenol red

ExpiCHO Expression Medium is formulated with GlutaMAX™-I reagent. It is ready to use, with no supplementation required. The chemically-defined formulation results in high reproducibility and lot-to-lot reliability. For highest level transient protein expression, the medium is used in combination with a matched culture feed, ExpiCHO™ Feed, which is supplied as part of the ExpiFectamine™ CHO Transfection Kit (Cat. No. A29129). ExpiCHO Expression Medium is not recommended for adherent cell cultures. Cells are typically grown in Erlenmeyer-style flasks on a shaker platform in a humidified, CO2 cell culture incubator. However, cultures are scalable from volumes of <1 mL in multi-well plates to >10 L in bioreactors.

CHO CD EfficientFeed™ B AGT™ Nutrient Supplement Gibco™

Gibco® CHO CD EfficientFeed™ B AGT™ nutrient supplement is a single part dry format product for fed batch addition to the culture of multiple cell lines. CHO CD EfficientFeed™ B AGT™ (Advanced Granulation Technology™) nutrient supplement is an animal origin-free, chemically defined formulation that contains no proteins, hydrolysates, or components of incompletely defined composition.

The AGT™ format is designed for large scale manufacturing and ease of use. This product is also available in liquid format for small scale use and experimentation.
• Expect up to 2- to 5-fold increases in productivity
• Avoid issues associated with the use of hydrolysates and other alternatives while gaining superior performance
• Simplify scale-up by leveraging the value of AGT™ simple reconstitution
• Achieve performance comparable to our original liquid catalog product
• Ready for larger scale use with convenient packaging options (10 L and 100 L)

Which EfficientFeed™ Nutrient Supplement to Choose?
Consider the CHO CD Efficient Feed™ Kit when:
• You are using a base medium with less than 6 g/L glucose and no hydrolysate at day 0

Consider CHO CD EfficientFeed™ A supplement when:
• You are currently using CD OptiCHO™ as your base cell growth medium

Consider CHO CD EfficientFeed™ B supplement when:
• You are currently using CD CHO as your base cell growth medium

Consider CD EfficientFeed™ C AGT™ supplement when:
• You want higher productivity in GS CHO and other selected cell lines
• You are currently using CD FortiCHO™ as your base cell growth medium
• You are using a base medium with greater than 6 g/L glucose or a hydrolysate at day 0

Increased Titers
CHO CD EfficientFeed™ supplements have been shown to increase titers 2-5 fold versus batch culture, and are an excellent starting point for process development (Figures 1a & 1b). Furthermore, they outperform competitive alternatives, including hydrolysates (Figures 2, 3a, & 3b).

Simple Scale-Up and Cost Savings
The ability to scale up in a dry format provides ease of handling and storage in manufacturing and other bioprocess settings. With AGT™ (Advanced Granulation Technology™) dry format, it is possible to store and use the product even more easily and safely than traditional dry format products. CHO CD EfficientFeed™ B AGT™ nutrient supplement is offered in 10 L and 100 L packaging that allows scale-up from the 1 L catalog liquid as a seamless process, as well as allow for cost savings when purchasing production level volumes.

Comparable Performance to Liquid Supplement
Equally important as the convenience and simplicity of AGT™ (Advanced Granulation Technology™) dry format is the comparable performance to the liquid CHO CD EfficientFeed™ B (Figure 4). Both forms have performed similarly in our testing, and the AGT™ version has been used successfully as a prototype in many processes by multiple companies.

AGT™ Format Ease of Use
CHO CD EfficientFeed™ B AGT™ nutrient supplement delivers dry format scale-up convenience as well as simple reconstitution via water addition and a single pH adjustment step (see Product Profile Sheet below for complete instructions).

For research or further manufacturing use. Not for use in diagnostic procedures.

CD CHO AGT™ Medium Gibco™

CD CHO AGT™ (Advanced Granulation Technology) medium is a protein-free, chemically-defined medium optimized for the growth of Chinese hamster ovary (CHO) cells and expression of recombinant proteins in suspension culture. The AGT™ dry media format is designed to provide increased consistency and productivity across all stages of production from development to commercial manufacturing. CD CHO AGT™ medium contains no proteins or peptide components of animal, plant, or synthetic origin, as well as no undefined lysates or hydrolysates.

When to Use CD CHO Medium
• Your GS CHO cells are recommended to be grown in CD CHO medium
• Your cells have been successfully cultured in CD CHO medium in the past and your process is nearing a regulatory filing (DMF available)

When to Consider Another Gibco® Medium

Consider CD FortiCHO™ medium when:
• The cell line you are using is a transfected CHO K1, GS CHO or CHO-S™ cell line
• Maximum batch culture cell densities and protein titers are needed
• You have time to adapt cells into a new medium in an effort to maximize titers
• Cell health at harvest is a priority for downstream processing

Consider CD OptiCHO™ medium when:
• You are using a transfected CHO cell line other than CHO K1, GS CHO or CHO-S™ cell lines
• Optimization of feeding strategies will be part of your base medium selection testing in an effort to maximize productivity
• Your CHO cell line is “finicky," i.e. hard to grow or adapt

Consider CD DG44 medium when:
• You use parental DG44 or DXB11 CHO cells (dhfr-)

Liquid Media Formulations
Gibco® AGT™ media are also available in a liquid format that offers the same performance and formulation as the AGT™ media format. Gibco® liquid media are manufactured animal origin-free with the same complete, serum-free, protein-free, chemically-defined formulation and performance as their AGT™ media counterparts.

Design Your Own Media Specific to Your Needs
Whether it’s a bench-level experiment or large scale biomanufacturing process, we offer specialized formats, packaging, and quality levels specific to your needs. With Gibco® cGMP Media Custom Services you can put the manufacturing power and years of technical experience of our R&D and Bioproduction Application Specialists to work for you.

CHO DG44 Cells (cGMP banked) and Media Kit Gibco™

The CHO DG44 Cells (cGMP banked) and Media Kit is optimized for the growth of dihydrofolate reductase deficient (DHFR-) Chinese Hamster Ovary (CHO) cells and expression of recombinant proteins in suspension culture. The kit provides:

GIBCO® CD DG44 Medium—a chemically defined, protein-free medium specifically designed to enable optimal growth and expression of DG44 cells in suspension culture

CHO DG44 cells (cGMP banked) —Parental CHO DG44 cells have been produced, banked and tested to meet cGMP quality standards. They are pre-adapted to CD DG44 Medium and selected for superior cell growth and transfection efficiencies.

In addition, the CHO DG44 Cells (cGMP banked) and Media Kit includes L-glutamine and Pluronic® F-68 for optimal growth and protein expression of DG44 cells in a protein-free, chemically defined environment.

High-Intensity Perfusion CHO Medium Thermo Scientific™

Gibco High-Intensity Perfusion (HIP) CHO Medium is an innovative, chemically defined, animal origin-free (AOF), cGMP medium. This easy-to-use perfusion medium helps enable high titers in numerous CHO cell lines from the beginning to the end of the process regardless of the type of perfusion platform, all while using less medium.

Features of HIP CHO Medium include:
• Tested with CHO-S, CHO-DG44, CHO-GS, and CHO-K1 cell lines
• Supports high cell density of over 100 million cells/mL at 1 vessel volume/day (VVD) continuous perfusion
• Demonstrated production of up to 1.7 g/L/day at 1 VVD continuous perfusion

Flexibility
HIP CHO Medium can be used at multiple concentrations to support seed train to production with one product. The flexible reconstitution of the medium allows dynamic tailoring of medium concentration to meet process and clone needs. Just as it can be used at multiple concentrations, HIP CHO Medium can be used in multiple perfusion processes: N-1 and seed train, intensified fed-batch, concentrated fed-batch, and continuous perfusion.In addition, HIP CHO Medium supports high cell densities at low medium exchange rates (as low as 1 VVD), which improves process efficiency.

HIP CHO Medium can help enable your move toward perfusion processes, which in turn can lead to a more compact and efficient workflow while improving productivity and quality.

Applications of HIP CHO Medium:
• Suspension CHO cells
• Selection system such as glutamine synthetase (GS) and dihydrofolate reductase (DHFR)
• Passaging, seed train, and protein production applications
• Optimized for use without feeds in perfusion application (other than glucose)

ExpiCHO-S™ Cells, 6 Vial Cell Bank Pack Gibco™

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 over 30 passages after thaw
• Maintain high cell viability and productivity for greater than 10 days post-transfection as part of the ExpiCHO expression system

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 <1 mL in multi-well plates to >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.

CHO CD EfficientFeed™ A AGT™ Nutrient Supplement Gibco™

Gibco® CHO CD EfficientFeed™ A nutrient supplement is an animal origin-free, chemically defined complete feed formulation that provides up to 2-5 fold improvement in titers used in fed batch versus batch culture. It contains no proteins, hydrolysates, or components of incompletely defined composition. CHO CD EfficientFeed™ A AGT™ (Advanced Granulation Technology™) Kit Nutrient Supplement provides all the benefits of CHO CD EfficientFeed™ A liquid supplement in a simpler to scale up and reconstitute 2-part kit that is primarily AGT™ dry format material.

The AGT™ format is designed for large scale manufacturing and ease of use. This product is also available in liquid form for small scale use and experimentation.
• Expect up to 2- to 5-fold increases in productivity
• Avoid issues associated with the use of hydrolysates and other alternatives while gaining superior performance
• Simplify scale-up by leveraging the value of AGT™ simple reconstitution
• Achieve performance comparable to original liquid supplement
• Ready for larger scale use with convenient packaging options (10 L and 100 L)

Which EfficientFeed™ Nutrient Supplement to Choose?
Consider the CHO CD Efficient Feed™ Kit when:
• You are using a base medium with less than 6 g/L glucose and no hydrolysate at day 0

Consider CHO CD EfficientFeed™ A supplement when:
• You are currently using CD OptiCHO™ as your base cell growth medium

Consider CHO CD EfficientFeed™ B supplement when:
• You are currently using CD CHO as your base cell growth medium

Consider CD EfficientFeed™ C AGT™ supplement when:
• You want higher productivity in GS CHO and other selected cell lines
• You are currently using CD FortiCHO™ as your base cell growth medium
• You are using a base medium with greater than 6 g/L glucose or a hydrolysate at day 0

Increased Titers
CHO CD EfficientFeed™ supplements have been shown to increase titers 2-5 fold versus batch culture, and are an excellent starting point for process development (Figures 1a & 1b). Furthermore, they outperform competitive alternatives, including less consistent hydrolysates (Figures 2, 3a, & 3b).

Simple Scale-Up and Cost Savings
The ability to scale up in a dry format provides ease of handling and storage in manufacturing and other bioprocess settings. With AGT™ (Advanced Granulation Technology™) dry format, it is possible to store and use the product even more easily and safely than traditional dry format products. CHO CD EfficientFeed™ A AGT™ supplement is offered in 10 L and 100 L packaging that allows scale-up from the 1 L liquid supplement as a seamless process, as well as allow for cost savings when purchasing production level volumes.

Comparable Performance to Liquid Supplement
Equally important as the convenience and simplicity of AGT™ (Advanced Granulation Technology™) dry format is the comparable performance to the liquid CHO CD EfficientFeed™ A version (Figure 4). Both forms have performed similarly in our testing, and the AGT™ version has been used successfully as a prototype in many processes by multiple companies.

AGT™ Format Ease of Use
CHO CD EfficientFeed™ A AGT™ Kit Nutrient Supplement delivers dry format scale-up convenience as well as simple reconstitution with approximately 1% concentrated solution add back. For more details, consult the supporting documents provided below.

For research or further manufacturing use. Not for use in diagnostic procedures.

1X CD CHO Medium Gibco™

CD CHO medium is a protein-free, serum-free, chemically-defined medium optimized for the growth of Chinese hamster ovary (CHO) cells and expression of recombinant proteins in suspension culture. With a proven track record of quality for more than 10 years, CD CHO medium contains no proteins or peptide components of animal, plant, or synthetic origin, as well as no undefined lysates or hydrolysates.

When to Use CD CHO Medium
• Your GS CHO cells are recommended to be grown in CD CHO medium
• Your cells have been successfully cultured in CD CHO medium in the past and your process is nearing a regulatory filing (DMF available)

When to Consider Another Gibco® Medium

Consider CD FortiCHO™ medium when:
• The cell line you are using is a transfected CHO K1, GS CHO or CHO-S™ cell line
• Maximum batch culture cell densities and protein titers are needed
• You have time to adapt cells into a new medium in an effort to maximize titers
• Cell health at harvest is a priority for downstream processing

Consider CD OptiCHO™ medium when:
• You are using a transfected CHO cell line other than CHO K1, GS CHO or CHO-S™ cell lines
• Optimization of feeding strategies will be part of your base medium selection testing in an effort to maximize productivity
• Your CHO cell line is “finicky," i.e. hard to grow or adapt

Consider CD DG44 medium when:
• You use parental DG44 or DXB11 CHO cells (dhfr-)

Dry Media Formulations
Gibco® liquid media are available in an AGT™ (Advanced Granulation Technology) dry media format that is designed to provide increased consistency and productivity across all stages of production from development to commercial manufacturing. AGT™ media are manufactured animal origin-free with the same complete, serum-free, protein-free, chemically-defined formulation and performance as their liquid media counterparts.

Design Your Own Media Specific to Your Needs
Whether it’s a bench-level experiment or large scale biomanufacturing process, we offer specialized formats, packaging, and quality levels specific to your needs. With Gibco® cGMP Media Custom Services you can put the manufacturing power and years of technical experience of our R&D and Bioproduction Application Specialists to work for you.

CD OptiCHO™ Medium Gibco™

CD OptiCHO™ medium is specifically designed to offer high performance and yield with recombinant CHO cells in a chemically defined fed-batch environment. The protein-free, animal origin free formulation is designed to provide consistency and reduces the need to screen for adventitious agents. CD OptiCHO™ medium builds on Gibco® CD CHO’s legacy of consistent cell growth and titers, while offering up to 40% better titer and cell growth over select competitors. Thanks to its low osmolality and advanced CHO CD EfficientFeed™ Liquid Nutrient Supplement Kit feeding options, CD OptiCHO™ medium is capable of gaining 2-5 fold increases in fed-batch productivity over batch culture.

When to Use CD OptiCHO™ Medium

• You are using a transfected CHO cell line other than CHO K1, GS CHO or CHO-S™ cell lines
• Optimization of feeding strategies will be part of your base medium selection testing in an effort to maximize productivity
• Your CHO cell line is “finicky," i.e. hard to grow or adapt

When to Consider Another Gibco® Medium

Consider CD FortiCHO™ medium when:
• The cell line you are using is a transfected CHO K1, GS CHO or CHO-S™ cell line
• Maximum batch culture cell densities and protein titers are needed
• You have time to adapt cells into a new medium in an effort to maximize titers
• Cell health at harvest is a priority for downstream processing

Consider CD CHO medium when:
• Your GS CHO cells are recommended to be grown in CD CHO medium
• Your cells have been successfully cultured in CD CHO medium in the past and your process is nearing a regulatory filing (DMF available)

Consider CD DG44 medium when:
• You use parental DG44 or DXB11 CHO cells (dhfr-)

Dry Media Formulations
Gibco® liquid media are available in an AGT™ (Advanced Granulation Technology) dry media format that is designed to provide increased consistency and productivity across all stages of production from development to commercial manufacturing. AGT™ media are manufactured animal origin-free with the same complete, serum-free, protein-free, chemically-defined formulation and performance as their liquid media counterparts.

Design Your Own Media Specific to Your Needs
Whether it’s a bench-level experiment or large scale biomanufacturing process, we offer specialized formats, packaging, and quality levels specific to your needs. With Gibco® cGMP Media Custom Services you can put the manufacturing power and years of technical experience of our R&D and Bioproduction Application Specialists to work for you.

ExpiCHO-S™ Cells Gibco™

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 <1 mL in multi-well plates to >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.

ExpiCHO™ Stable Production Medium Gibco™

Gibco ExpiCHO Stable Production Medium (SPM) is specifically designed to simplify your cell line development process into production with minimal effort and a high degree of confidence. This chemically defined, protein-free, animal origin component-free formulation is fully optimized for large-scale fed-batch culture with ExpiCHO-S cells. ExpiCHO SPM supports an easy transition from transient to stable production, provides high titers without the need for additional medium optimization (see figures below), and works well with existing EfficientFeed C+ supplement.

ExpiCHO SPM is part of the ExpiCHO family, an end-to-end solution that empowers you to carry out your entire workflow from transient to stable expression without having to screen or optimize media and feeds.

Hassle-free scale-up
Simplify your process as you transition into stable clones with ExpiCHO SPM—no cell adaptation, no media optimization, no changes in cell doubling time and peak density. ExpiCHO SPM eases the transition using ExpiCHO-S cells and provides optimal performance with less need for fine-tuning from development scientists to get you to the next step faster. This medium supports high titers under standard fed-batch process conditions in conjunction with EfficientFeed C+ supplement. It is available in liquid format (this page) or in our AGT dry format from 10 L through 450 L equivalents with larger sizes available upon request.

ONE Solution
The ExpiCHO family includes products that are engineered to work seamlessly with each other. ExpiCHO SPM is a member of this family and allows expanded support of bioproduction from transient to stable protein expression. Look for ExpiCHO-branded protocols and methods to get optimal performance in the development process.

Members of the ExpiCHO family include:
• ExpiCHO Stable Production Medium (this page)
• ExpiCHO Expression Medium
• ExpiCHO-S cells
• Expifectamine CHO Transfection Kit

The power to streamline transfer to manufacturing
ExpiCHO SPM liquid format and AGT dry format demonstrate comparable cell growth and titer performance (see figure below). Therefore, scale-up and manufacturing using AGT dry format is simplified by knowing that the reconstituted AGT dry format will behave similarly to the liquid format used prior to scale-up. The AGT dry format is easy to reconstitute; just add water and it will automatically adjust pH and osmolality. This can help provide efficiencies in supply chain complexity, reconstitution complexity, and, therefore, overall expense.

When to use ExpiCHO Stable Production Medium:
• When you are using the ExpiCHO-S cell line for transient expression and want to scale up
• After you have completed the stable transfection of ExpiCHO-S cells in ExpiCHO Expression Medium. (Follow our recommended protocol.)
• When you do not have the time to perform medium adaptation or optimization

When NOT to use ExpiCHO Stable Production Medium:
• When you have an existing platform cell-line or feeds and are looking for a broad medium to support a wide variety of cell-lines
• When you need a medium for transfection. For transient and stable transfection, ExpiCHO Expression Medium is recommended.

Support available with ExpiCHO Stable Production Medium:
• A stable cloning protocol designed specifically for the ExpiCHO family of products (must be used for optimal performance)
• Licensing for the ExpiCHO-S cells for development of stable clones.

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