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Resurge™ CD3 Supplement, without glucose and L-glutamine (Gibco™)

Resurge CD3 Supplement, without glucose and L-glutamine, is an animal origin-free (AOF) protein-free chemically defined supplement. It can be used in batch and fed batch mode in cell culture processes. All components are chemically defined with known molecular formulae and structures and meet our stringent Animal Origin-Free (AOF) specification.

Resurge CD3 Supplement is formulated without glucose, L-glutamine, and sodium bicarbonate. Due to the balanced nutritional nature of this supplement, rich in amino acids, it has also been used in bacterial applications.

Features:
• Animal origin-free
• Chemically defined
• Protein-free
• Rich in amino acids

Applications of the Resurge CD3 Supplement, without glucose and L-glutamine, include:
• Can be used in batch and fed batch mode in cell culture processes
• Use in bacterial applications

Tryptose Phosphate Broth

Gibco® Tryptose Phosphate Broth is a cell culture supplement for BHK-21 cells used for vaccine production. Tryptose Phosphate Broth contains tryptose (an enzymatic hydrolysis of protein), dextrose, sodium chloride and disodium phosphate.

Product Use
For Research Use Only. Not for use in diagnostic procedures.

cGMP Manufacturing and Quality System
Gibco® Tryptose Phosphate Broth is manufactured at a cGMP compliant facility, located in Paisley, Scotland, UK. The facility is registered with the FDA as a medical device manufacturer and is certified to the ISO 13485 standard.

Bovine Transferrin, HOLO form (custom product) (Gibco™)

This is a GIBCO Custom Product. Please complete and submit the Custom Media Inquiry Form and a Customer Service Representative will contact you regarding pricing and availability.

L-Glutamine (200 mM)

L-Glutamine is an amino acid that is required for cell culture. L-Glutamine participates in the formation of purine and pyrimidine nucleotides, amino sugars, glutathione, L-glutamate, and other amino acids, as well as in protein synthesis and glucose production. Unlike most other amino acids, L-glutamine is not stable in solution. The rate at which degradation proceeds is a function of time, temperature, and pH. Gibco® L-glutamine is a ready-to-use 200 mM stock solution that acts as a cell culture supplement. The optimal concentration is dependent upon the cell type and medium used to culture the cells, but generally falls in the range of 2–6 mM.

We also offer Gibco® GlutaMAX™ Supplement as a stable alternative to L-glutamine.

Dual-site cGMP Manufacturing and Quality System
Gibco® L-glutamine is manufactured at a cGMP compliant facility located in Paisley, Scotland, UK. The facility is registered with the FDA as a medical device manufacturer and is certified to the ISO 13485 standard. For supply chain continuity, we offer an identical Gibco® L-glutamine product made in our Grand Island facility (25030-081). This facility is registered with the FDA as a medical device manufacturer and is certified to the ISO 13485 standards.

HepaRG™ Maintenance/Metabolism Medium Supplement (5X) (Gibco™)

HepaRG™ Maintenance/Metabolism Medium Supplement (5x) is a specialized media supplement for use in culturing HepaRG™ cells. HepaRG™ Maintenance/Metabolism Medium Supplement (5x) is specifically used for multiple day growth of HepaRG™ cells.
• Easy media preparation, just thaw, mix, and use
• Reproducible, and biologically relevant results with HepaRG™ cells

Media Preparation
Working media is prepared by the addition of thawed HepaRG™ Maintenance/Metabolism Medium Supplement (5x) to 500 ml of William’s Medium E (A1217601 or 12551032) and 5 ml of GlutaMAX™-I (35050061). The simple two-step process helps reduce contamination opportunities.

Simplified, Relevant and Reproducible Studies
HepaRG™ cells exhibit many characteristics of primary human hepatocytes and are essentially a single donor. These features allow users to obtain physiological relevant results for metabolism-based drug-drug interactions without the concern of donor variability and limited lot sizes that come with relying on donor tissue. (Note: The cells we provide are terminally differentiated).

HepaRG™ is a trademark of BioPredic International.

Sodium Pyruvate (100 mM) (Gibco™)

Sodium pyruvate is commonly added to cell culture media as a carbon source in addition to glucose. Since cells make sodium pyruvate as an intermediate metabolite in the glycolysis pathway, it is not a required supplement for all cell cultures. However, if cells have been grown in medium that is supplemented with sodium pyruvate, we recommend continuing use of the supplement as cell growth may lag without it. Gibco® Sodium Pyruvate (100 mM) is formulated using 11 g per liter of water. The final concentration of sodium pyruvate used in most cell culture media is 1 mM.

Dual-site cGMP Manufacturing and Quality System
Gibco® Sodium Pyruvate Solution is manufactured at a cGMP compliant facility, located in Grand Island, New York. The facility is registered with the FDA as a medical device manufacturer and is certified to ISO 13485 standards. For supply chain continuity, we offer an identical Gibco® Sodium Pyruvate Solution product made in our Scotland facility (11360-039). This facility is registered with the FDA as a medical device manufacturer and is certified to the ISO 13485 standard.

HepaRG™ Induction Medium Supplement (5X) (Gibco™)

HepaRG™ Induction Medium Supplement (5x) is a specialized media supplement for use in culturing HepaRG™ cells. HepaRG™ Induction Medium Supplement (5x) is specifically used for induction of metabolic activity in HepaRG™ cells.
• Easy media preparation, just thaw, mix, and use
• Reproducible, and biologically relevant results with HepaRG™ cells

Media Preparation
Working media is prepared by the addition of thawed HepaRG™ Induction Medium Supplement (5x) to 500 ml of William’s Medium E (A1217601 or 12551032) and 5 ml of GlutaMAX™-I (35050061). The simple two-step process helps reduce contamination opportunities.

Simplified, Relevant and Reproducible Studies
HepaRG™ cells exhibit many characteristics of primary human hepatocytes and are essentially a single donor. These features allow users to obtain physiological relevant results for metabolism-based drug-drug interactions without the concern of donor variability and limited lot sizes that come with relying on donor tissue. (Note: The cells we provide are terminally differentiated).

HepaRG™ is a trademark of BioPredic International.

B-27™ Supplement (50X), serum free (Gibco™)

The most cited neuronal cell culture supplement, B-27 Supplement is an optimized serum-free supplement used to support the low- or high-density growth and short- or long-term viability of embryonic, post-natal, and adult hippocampal and other CNS neurons. B-27 Supplement is provided as a 50X liquid and is intended for use with Neurobasal Medium or Neurobasal-A Medium for neuronal cell culture without the need for an astrocyte feeder layer.

B-27 Supplement is suitable for use in most neuronal cell applications. For other applications, we provide alternative formulations of B-27 Supplement and Neurobasal media.

For established protocols using B-27 Supplement, access our Gibco Neurobiology Protocol Handbook.

View publications using Gibco neurobiology products at our Gibco CellCite.

CTS™ Immune Cell SR (Gibco™)

CTS™ Immune Cell Serum Replacement (SR) is designed to support expansion of in vitro cultured human immune cells such as T cells when added to a basal cell culture media such as CTS™ OpTmizer™ T cell Expansion SFM or CTS™ AIM-V® SFM. CTS™ Immune Cell SR is a defined xeno-free formulation and does not contain bovine or other non-human, animal-derived components.

• Minimizes the supply and safety risks associated with human serum
• Supports expansion of polyclonal T cells (CD3/CD28 bead-activated, OKT3 mAb-activated, virus-specific and tumor-specific T cells)
• Supports T cell phenotype (CD4, CD8, and CD62L) similar to human serum
• Supports expansion of gene-modified CAR T cells (lentiviral transduction)
• Reduces the cost and time associated with qualifying human serum
• Generic enough to use with the base media of your choice

Security of supply and safety
CTS™ Immune Cell SR is a defined xeno-free formulation that contains no bovine or other non-human, animal-derived components at the primary component level. The site is FDA registered and has an ISO13485-certified quality management system. The methods and controls used for the manufacturing are in conformity with current Good Manufacturing Practices for medical devices, 21 CFR Part 820, of the regulation. Full traceability documentation such as Certificate of Origin, Certificate of Analysis, and Drug Master File are available. The product can be scaled to meet future clinical and commercial demand. Alternate manufacturing sites are available as further risk mitigation.

T cell qualified
CTS™ Immune Cell SR can replace human serum at similar concentrations and achieve similar performance. CTS™ Immune Cell SR supports expansion of polyclonal T cells (CD3/CD28 bead-activated and TILs), T Cell phenotypes (CD4, CD8 and CD62L), and expansion of gene-modified CAR T cells (lentiviral transduction). Every lot is pre-qualified in a functional T cell assay using CTS™ Dynabeads® CD3/CD28-activated primary T cells to ensure consistent performance. This reduces the cost and time associated with human serum lot testing.

Versatility
CTS™ Immune Cell SR can replace human serum at similar concentrations without sacrificing performance in several different base media such as CTS™ OpTmizer™ T Cell Expansion SFM and CTS™ AIM-V® SFM or other commercial media designed for immune cells. Varying dilutions of CTS™ Immune Cell SR should be tested to determine the optimal concentration needed for your cell type and basal media.

What you get
CTS™ Immune Cell SR is available in a 50 mL bottle for small volume users as well as a 500 mL bottle for larger volume users. For added convenience, the product can be freeze-thawed once if smaller aliquots are needed. CTS™ Immune Cell SR can be added to your standard base media at similar concentrations as human serum.

B-27™ Supplement, minus insulin (Gibco™)

A variation of the most cited neuronal cell culture supplement, B-27 Supplement Minus Insulin is a customized version of the original B-27 Supplement without insulin. B-27 Supplement Minus Insulin is a serum-free supplement designed to support growth of hippocampal and other CNS neurons in applications where the presence of insulin causes interference. B-27 Supplement Minus Insulin is provided as a 50X liquid and is intended for use with Neurobasal Medium or Neurobasal-A Medium.

B-27 Supplement is suitable for use in most neuronal cell applications. For other applications, we provide alternative formulations of B-27 Supplement and Neurobasal media.

For established protocols using B-27 Supplement, access our Gibco Neurobiology Protocol Handbook.

View publications using Gibco neurobiology products at our Gibco CellCite.

GlycanTune™ A+ Total Feed (Gibco™)

GlycanTune™ A+ Total Feed is an AGT™, or Advanced Granulation Technology™, feeding supplement specifically designed for a fed-batch culture of multiple cell lines. When used, this dry-format, single-part total feeding supplement can shift glycan profiles from heavily G0F to mostly G1F and G2F glycans. The product is an animal origin–free, chemically-defined formulation that contains no proteins, hydrolysates, or components of unknown composition. GlycanTune A+ Total Feed provides an easy-to-reconstitute, pH-neutral solution that can be concentrated from the suggested 73.0 g/L (1X) up to 219.0 g/L (3X). As a result, key nutrients can be delivered in smaller volumes.

Which GlycanTune Total Feed to choose?

Consider GlycanTune A+ Total Feed when:
• You have used Gibco™ EfficientFeed™ A+ (Plus) AGT Supplement in the past and wish to maintain the benefits of simpler reconstitution and super-concentration in delivering key components alongside improved glycan profile
• You are currently using another feed and wish to shift glycan profile more toward G1 and G2
• You are using a cell line or base medium where CD OptiCHO™ Medium may be considered an option

Consider GlycanTune B+ Total Feed when:
• You have used Gibco EfficientFeed B+ (Plus) AGT Supplement in the past and wish to maintain the benefits of simpler reconstitution and super-concentration in delivering key components alongside improved glycan profile
• You are currently using another feed and wish to shift glycan profile more toward G1 and G2
• You are using a cell line or base medium where CD CHO Medium may be considered an option

Consider GlycanTune C+ Total Feed when:
• You have used Gibco EfficientFeed C+ (Plus) AGT Supplement in the past and wish to maintain the benefits of simpler reconstitution and super-concentration in delivering key components alongside improved glycan profile
• You are currently using another feed and wish to shift glycan profile more toward G1 and G2
• You are using a cell line or base medium where Dynamis™ Medium may be considered an option

Dialing in a glycan profile
By following the protocol recommended to test with GlycanTune Total Feed, it is possible to shift the glycan protein expression profiles from primarily G0 to primarily G1 and G2.

Increasing titers
As a complete feed, GlycanTune total feeds have been shown to provide multiple-fold increases in titers at 1X concentration versus batch culture; as such, they are an excellent starting point for process development when a shift in glycan profile is desired. Flexibility to further increase titers is enhanced with the ability to super-concentrate the product by reconstituting with less water to deliver up to 219.0 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 GlycanTune A+ product.

Simplified handling to reduce risk in scale-up
The ability to scale up using AGT dry format provides easier handling and storage in manufacturing and other bioprocess settings. Fewer parts and reconstitution steps mean fewer opportunities for operator error. Further, the ability to store this feed, even when super-concentrated, for the length of a bioreactor run at room temperature in the dark may allow less chance of contamination by reducing the number of connections to the bioreactor to one or two—depending on whether GlycanTune Total Feed can be used alone or after a change from your current feed.

Insulin-Transferrin-Selenium-Ethanolamine (ITS -X) (100X) (Gibco™)

Gibco® Insulin,-Transferrin-Selenium-Ethanolamine (ITS-X) is used as a basal medium supplement in order to reduce the amount of fetal bovine serum (FBS) used to culture cells. ITS-X solution is routinely used, in combination with 2–4% FBS, to support cell types that require ethanolamine, such as bronchial epithelial cells.

Insulin promotes glucose and amino acid uptake, lipogenesis, intracellular transport, and the synthesis of proteins and nucleic acids. Transferrin is an iron carrier and may also help to reduce toxic levels of oxygen radicals and peroxide. Selenium, as sodium selenite is a co-factor for glutathione peroxidase and other proteins that is used as an anti-oxidant in media. Ethanolamine is a precursor of phospho-glycerides which are essential to the structure of the plasma membrane and cellular organelles.

The complete formulation is available.

cGMP Manufacturing and Quality System
Gibco® ITS-X is manufactured at a cGMP compliant facility, located in Grand Island, New York. The facility is registered with the FDA as a medical device manufacturer and is certified to ISO 13485 standards.

L-Glutamine (200 mM) (Gibco™)

L-Glutamine is an amino acid that is required for cell culture. L-Glutamine participates in the formation of purine and pyrimidine nucleotides, amino sugars, glutathione, L-glutamate, and other amino acids, as well as in protein synthesis and glucose production. Unlike most other amino acids, L-glutamine is not stable in solution. The rate at which degradation proceeds is a function of time, temperature, and pH. Gibco® L-glutamine is a ready-to-use 200 mM stock solution that acts as a cell culture supplement. The optimal concentration is dependent upon the cell type and medium used to culture the cells, but generally falls in the range of 2–6 mM.

We also offer Gibco® GlutaMAX™ Supplement as a stable alternative to L-glutamine.

Dual-site cGMP Manufacturing and Quality System
Gibco® L-glutamine is manufactured at a cGMP compliant facility located in Paisley, Scotland, UK. The facility is registered with the FDA as a medical device manufacturer and is certified to the ISO 13485 standard. For supply chain continuity, we offer an identical Gibco® L-glutamine product made in our Grand Island facility (25030-081). This facility is registered with the FDA as a medical device manufacturer and is certified to the ISO 13485 standards.

HuMEC Supplement Kit (Gibco™)

HuMEC Supplement Kit contains growth factors and other components and is designed to work with HuMEC Basal Serum-Free Medium (12753018). Together, these products are engineered specifically for the culture of human mammary epithelial cells (A10565). This translates to greater experimental validity, more reproducible results, and reduction of lot-to-lot variability and aberrations that can occur with the addition of serum. Human mammary epithelial cells cultured in HuMEC Medium have gene expression profiles consistent with normal mammary epithelial cells, as tested on a cDNA microarray.

Applications:
HuMEC Medium is optimized specifically for the growth of human mammary epithelial cells, and has been performance tested in a growth assay using normal human mammary epithelial cells. HuMEC Medium promotes superior growth of normal human mammary epithelial cells, making it ideal for researchers in breast cancer, drug discovery, and other aspects of breast biology.

Contents and Storage:
The HuMEC Supplement Kit includes 5 ml of a supplement mix containing epidermal growth factor, hydrocortisone, isoproterenol, transferrin, and insulin, and 25 mg of bovine pituitary extract. Store the supplement mix at -5°C to -20°C.

GlycanMod™ Pak (Gibco™)

The GlycanMod Pak includes protein quality supplements that provide an innovative solution to your protein quality needs. These chemically defined protein quality supplements are designed to increase mAb galactosylation across multiple cell lines. GlycanMod supplements are available as an easy-to-test four-pack, GlycanMod Pak, or as individual products: GlycanMod G100, G125, G150, and G175 supplements.

Each protein quality supplement has a distinct composition which provides more options for achieving your target profile. These supplements are titratable and can be added as needed to achieve the desired galactosylation pattern. GlycanMod supplements offer a solution for your galactosylation needs, helping to get your product to market faster. GlycanMod Pak offers one each of our GlycanMod supplements in 100-g, non-GMP sizes.

The GlycanMod Pak includes:
• GlycanMod G100—enriched in micronutrients
• GlycanMod G125—enriched in carbohydrates and micronutrients
• GlycanMod G150—enriched in trace elements
• GlycanMod G175—enriched in carbohydrates and trace elements

AlbuMAX™ I Lipid-Rich BSA (Gibco™)

Lipid-rich bovine serum albumin for cell culture (1). It is chromatographically purified and has an IgG content <= 0.1%.

Origin:
New Zealand

HepaRG™ Serum-free Induction Medium Supplement (5X) (Gibco™)

HepaRG™ Serum-free Induction Medium Supplement (5x) is a specialized media supplement for use in culturing HepaRG™ cells. HepaRG™ Serum-free Induction Medium Supplement (5x) is specifically used for induction of metabolic activity in HepaRG™ cells in a serum free environment.
• Easy media preparation, just thaw, mix, and use
• Reproducible, and biologically relevant results with HepaRG™ cells

Media Preparation
Working media is prepared by the addition of thawed HepaRG™ Serum-free Induction Medium Supplement (5x) to 500 ml of William’s Medium E (A1217601 or 12551032) and 5 ml of GlutaMAX™-I (35050061). The simple two-step process helps reduce contamination opportunities.

Simplified, Relevant and Reproducible Studies
HepaRG™ cells exhibit many characteristics of primary human hepatocytes and are essentially a single donor. These features allow users to obtain physiological relevant results for metabolism-based drug-drug interactions without the concern of donor variability and limited lot sizes that come with relying on donor tissue. (Note: The cells we provide are terminally differentiated).

HepaRG™ is a trademark of BioPredic International.

CD EfficientFeed™ C AGT™ Nutrient Supplement (Gibco™)

GIBCO® CD EfficientFeed™ C AGT™ nutrient supplement is a dry format single part supplement for fed batch addition to the culture of multiple cell lines. This product is designed to work with GS CHO cell lines as a single feed without the need for additional GS supplements. CD EfficientFeed™ C AGT™ nutritient 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.
• Up to 2.5 – 6 Fold increases versus batch culture – higher concentration of key components
• Higher productivity in GS CHO and other selected cell lines
• 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
• Ready for larger scale use with convenient packaging options (1 L, 10 L, and 100 L)
• No components of animal origin, minimizing the opportunity for introduction of adventitious agents and facilitating the regulatory process

Which EfficientFeed™ Nutrient Supplement to Choose?
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

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 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

Increased Titers
CHO CD EfficientFeed™ supplements have been shown to fold increases in titers versus batch culture, and are an excellent starting point for process development. Furthermore, it does not require addition of a GS Supplement when used in CHO cell lines expressing endogenous glutamine synthetase.

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. CD EfficientFeed™ C AGT™ supplement is offered in 1 L, 10 L and 100 L packaging that allows scale-up as a seamless process, as well as allow for cost savings when purchasing production level volumes.

AGT™ Format Ease of Use
CD EfficientFeed™ C AGT™ Nutrient Supplement delivers dry format scale-up convenience as single part AGT dry format. For more details, consult the supporting documents provided below.

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

Smooth Muscle Growth Supplement (SMGS) (Gibco™)

A sterile, concentrated (20X) solution intended for use with Medium 231 to culture human smooth muscle cells. Each 25 ml bottle of SMGS contains all of the growth factors, hormones, and tissue extracts necessary for the culture of human smooth muscle cells, and is the correct amount of supplement for a 500 ml bottle of basal Medium 231.

When a 500 ml bottle of medium is supplemented with SMGS, the final concentrations of the components in the supplemented medium are:

• Fetal bovine serum (4.9% v/v)
• Human basic fibroblast growth factor (2 ng/ml)
• Human epidermal growth factor (0.5 ng/ml)
• Heparin (5 ng/ml)
• Recombinant human insulin-like growth factor-I (2 µg/ml)
• BSA (0.2 µg/ml)

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.

B-27™ Supplement (50X), custom (Gibco™)

The custom B-27® Supplement (50X) is a serum-free additive for the growth and expansion of retinal ganglion cells. It is supplied as a 50X liquid concentrate and it is used with a basal medium, such as Neurobasal®, and other additives, such as GlutaMAX-1.

HT Supplement (100X) (Gibco™)

Gibco® HT Supplement is a liquid mixture of sodium hypoxanthine (10 mM) and thymidine (1.6 mM). HT-supplemented medium is suitable for post-selection rescue to overcome the effects of residual intracellular aminopterin. Once the de novo biosynthesis pathway for nucleosides has been reestablished, HT supplementation can be discontinued.

cGMP Manufacturing and Quality System
Gibco® HT Supplement is manufactured at a cGMP compliant facility, located in Grand Island, New York. The facility is registered with the FDA as a medical device manufacturer and is certified to ISO 13485 standards. For supply chain continuity, we offer a comparable Gibco® HT Supplement product made in our Scotland facility (41065-012). This facility is registered with the FDA as a medical device manufacturer and is certified to the ISO 13485 standard.

Insulin-Transferrin-Selenium (ITS -G) (100X) (Gibco™)

Gibco® Insulin-Transferrin-Selenium (ITS-G) is used as a basal medium supplement in order to reduce the amount of fetal bovine serum (FBS) needed to culture cells. Originally used with RPMI 1640 and Minimum Essential Medium (MEM), ITS-G solution is now routinely used with other basal media to support a wide variety of cell types in the presence of 2–4% FBS.

Insulin promotes glucose and amino acid uptake, lipogenesis, intracellular transport, and the synthesis of proteins and nucleic acids. Transferrin is an iron carrier and it may also help to reduce toxic levels of oxygen radicals and peroxide. Selenium, as sodium selenite, is a co-factor for glutathione peroxidase and other proteins, and is used as an anti-oxidant in media.

The complete formulation is available.

cGMP Manufacturing and Quality System
Gibco® ITS-G is manufactured at a cGMP compliant facility, located in Grand Island, New York. The facility is registered with the FDA as a medical device manufacturer and is certified to ISO 13485 standards.

Dopaminergic Neuron Maturation Supplement (Gibco™)

Dopaminergic Neuron Maturation Supplement is a component of the Gibco™ PSC Dopaminergic Neuron Differentiation Kit that is also offered separately. It enables maturation of excess floor plate progenitor cells to midbrain dopaminergic neurons.

N-2 Supplement (100X) (Gibco™)

N-2 Supplement is a chemically-defined, serum-free supplement based on Bottenstein’s N-1 formulation. It is recommended for growth and expression of neuroblastomas as well as post-mitotic neurons in primary cultures from both the peripheral nervous system and the central nervous system. N-2 Supplement is provided as a 100X concentrate and is intended for use with Neurobasal Medium supplemented with growth factors such as bFGF and EGF. It may also be used with DMEM.

For established protocols using N-2 Supplement, access our Gibco Neurobiology Protocol Handbook.

View publications using Gibco neurobiology products at our Gibco CellCite.

GlycanMod™ G150 Supplement (Gibco™)

GlycanMod G150 is a chemically defined protein quality supplement, enriched in trace elements, that is designed to increase mAb galactosylation across multiple cell lines. It is also available as part of the GlycanMod Pak, which includes one of each of our GlycanMod supplements in 100-g, non-GMP sizes.

Each protein quality supplement has a distinct composition which provides more options for achieving your target profile. These supplements are titratable and can be added as needed to achieve the desired galactosylation pattern. GlycanMod supplements offer a solution for your galactosylation needs, helping to get your product to market faster.

The GlycanMod Pak includes:
• GlycanMod G100—enriched in micronutrients
• GlycanMod G125—enriched in carbohydrates and micronutrients
• GlycanMod G150—enriched in trace elements
• GlycanMod G175—enriched in carbohydrates and trace elements

Resurge™ CD4 Supplement, without glucose and L-glutamine (Gibco™)

Resurge CD4 Supplement, without glucose and L-glutamine, is a chemically defined supplement formulation to complement a variety of base media. This supplement was developed using several host cell lines and in various culture systems, including shaker flasks and bench-scale bioreactors. Resurge CD4 Supplement, without glucose and L-glutamine, was developed for use in CHO mammalian culture systems and can be used either as a media supplement or a culture system feed.

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.

L-Glutamine (Gibco™)

L-Glutamine is an amino acid required for cell culture. L-glutamine participates in the formation of purine and pyrimidine nucleotides, amino sugars, glutathione, L-glutamate, other amino acids, and is used in protein synthesis and glucose production. L-glutamine, unlike most other amino acids, is not stable in solution. The rate at which this degradation proceeds is a function of time, temperature, and pH.

Using L-glutamine
L-glutamine (nonsterile) powder should be made as a filter-sterilized stock solution of 200 mM (or similar) in distilled water. The optimal concentration to use is dependent upon the cell type and medium used to culture the cells, but generally falls in the range of 2–6 mM.

Alternative product
We also offerGlutaMAX™ supplement as a stable alternative to L-glutamine.

Human Keratinocyte Growth Supplement (HKGS) (Gibco™)

A sterile, concentrated (100X) solution intended for use with EpiLife® medium or Medium 154 to culture human epidermal keratinocytes. HKGS is an ionically-balanced supplement containing bovine pituitary extract (BPE), recombinant human insulin-like growth factor-I, hydrocortisone, bovine transferrin, and human epidermal growth factor. Each 5 mL bottle of HKGS contains all of the growth factors, hormones, and tissue extracts necessary for the culture of human epidermal keratinocytes, and is the correct amount of supplement for a 500 mL bottle of medium.

When a 500 mL bottle of medium is supplemented with HKGS, the final concentrations of the components in the supplemented medium are:

• Bovine pituitary extract (BPE), 0.2% v/v
• Recombinant human insulin-like growth factor-I, 1 µg/mL
• Hydrocortisone, 0.18 µg/mL
• Bovine transferrin, 5 µg/mL
• Human epidermal growth factor, 0.2 ng/mL