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FreeStyle™ 293 Expression Medium (Gibco™)

FreeStyle™ 293 Expression Medium is an animal origin–free, chemically defined, protein-free medium specifically developed to support the growth and transfection of 293-F cells in suspension without adaptation. The medium is complete and ready-to-use, with no supplementation required. Gibco® FreeStyle™ 293 Expression Medium features:

• Complete and ready-to-use format containing GlutaMAX™ supplement
• Ability to support suspension growth and transfection of 293-F cells
• Animal origin–free, protein-free and chemically defined formulation
• Easy use with the FreeStyle™ 293 Expression systems
• Scalability in spinner flasks and bioreactors

Complete and ready-to-use format containing GlutaMAX™ supplement
Gibco® FreeStyle™ 293 Expression Medium is ready to use. It does not require the addition of serum, glutamine, or surfactants. Gibco® FreeStyle™ 293 Expression Medium contains GlutaMAX™ supplement to minimize toxic ammonia build-up and improve cell viability and growth in an easy-to-use format.

Ability to support suspension growth and transfection of 293-F cells
Gibco® 293-F, 293-H, and FreeStyle™ 293-F cells in suspension can be cultured directly into Gibco® FreeStyle™ 293 Expression Medium without adaptation. Cells adapted to other commercially available serum-free media can be subcultured directly into Gibco® FreeStyle™ 293 Expression Medium, usually without any further adaptation. Cells usually require adaptation from serum-containing formulations. Cells cultured in Gibco® FreeStyle™ 293 Expression Medium can be transfected using lipid based transfection reagents, such as 293fectin™ reagent and Freestyle™ MAX reagent.

Animal origin–free, protein-free and chemically defined formulation
Gibco® FreeStyle™ 293 Expression Medium is animal origin–free, protein-free and chemically defined, allowing for easier purification of your protein of interest. Gibco® chemically defined media contain no proteins, hydrolysates, or components of unknown composition.

Easy use as part of the FreeStyle™ 293 Expression System and FreeStyle™ MAX Expression System for protein production
The FreeStyle™ 293 Expression System is a complete, suspension cell culture system for generating large amounts of mammalian recombinant protein (see figure). The FreeStyle™ 293 Expression System combines Gibco® FreeStyle™ 293 Expression Medium with 293fectin™ reagent, a cationic-lipid formulation designed to transfect suspension FreeStyle™ 293-F cells at high efficiency. The FreeStyle™ MAX Expression System is a breakthrough technology for rapid and high-yield mammalian protein production. The FreeStyle™ MAX Expression System combines Gibco® FreeStyle™ Media, FreeStyle™ MAX Reagent, and either FreeStyle™ CHO-S cells or FreeStyle™ 293-F cells.

Scalability in spinner flasks and bioreactors
Protein production using Gibco® FreeStyle™ 293 Expression Medium can be scaled up in spinner flasks or bioreactors. The appropriate spinner or impeller speed and seeding density should be optimized for each system. Depending on the impeller design and speed, it may be necessary to supplement Gibco® FreeStyle™ 293 Expression Medium with additional Pluronic® F-68 to avoid sheer stress in the culture.

Universal bag packaging
Gibco® universal bags offer flexible packaging that allows you to integrate a single-use, disposable large volume media container with a wide variety of automated cell culture instruments, disposable bioreactor systems, and sterile connection processes, minimizing the need for costly customization.

Product use
Customers using Gibco® FreeStyle™ 293 Expression Medium in a manufacturing process, who have a submission with the FDA, may request a letter of authorization from us to reference our Type II Drug Master File (DMF).

cGMP manufacturing and quality system
Gibco® FreeStyle™ 293 Expression Medium 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.

FreeStyle™ F17 Expression Medium (Gibco™)

FreeStyle™ F17 Expression Medium is an animal origin–free, chemically defined, protein-free medium specifically developed to support the growth and transfection of 293-F and CHO cells in suspension without adaptation. This is a multi-platform medium compatible with a range of transient expression systems. The addition of 4–8 mM L-glutamine or GlutaMAX™ supplement is required before use. Gibco® FreeStyle™ F17 Expression Medium features:

• Little or no required adaptation
• Ability to support suspension growth and transfection of 293-F and CHO cells
• Animal origin–free, protein-free, and chemically defined formulation
• Scalability in spinner flasks and bioreactors

Little or no required adaptation
Gibco® 293-F, 293-H, FreeStyle™ 293-F, and CHO-S cells in suspension can be cultured directly into Gibco® FreeStyle™ F17 Medium without adaptation. Cells adapted to other commercially available serum-free media can be subcultured directly into Gibco® FreeStyle™ F17 Medium, usually without any further adaptation. Cells usually require adaptation from serum-containing formulations.

Ability to support suspension growth and transfection of 293-F and CHO cells
Gibco® FreeStyle™ F17 Medium provides equal or better performance compared to Gibco® FreeStyle™ 293 Expression Medium and Gibco® FreeStyle™ CHO Medium. Gibco® FreeStyle™ F17 Medium supports 293-F cells at a peak density of 6–7 × 106 viable cells per mL, and supports CHO-S cells at a peak density of 8–9 × 106 viable cells per mL. Cells cultured in Gibco® FreeStyle™ F17 can be transfected using a wide variety of transfection reagents, including lipid-based transfection reagents, such as 293fectin™ and Freestyle™ MAX Reagent. Protein expression typically exceeds 75–150 µg/mL IgG in 293-F cells.

Animal origin–free, protein-free, and chemically defined formulation
Gibco® FreeStyle™ F17 Medium is animal origin–free, protein-free, and chemically defined, allowing for easier purification of your protein of interest. Gibco® chemically defined media contain no proteins, hydrolysates, or components of unknown composition.

Scalability in spinner flasks and bioreactors
Protein production using Gibco® FreeStyle™ F17 Medium can be scaled up in spinner flasks or bioreactors. The appropriate spinner or impeller speed and seeding density should be optimized for each system. Depending on the impeller design and speed, it may be necessary to supplement Gibco® FreeStyle™ F17 Medium with additional Pluronic® F-68 to avoid sheer stress in the culture.

cGMP manufacturing and quality system
Gibco® FreeStyle™ F17 Medium 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.

Expi293™ Expression Medium (Gibco™)

Gibco Expi293 Expression Medium is a chemically defined, serum-free, protein-free medium for growth and transfection of suspension-adapted human embryonic kidney (HEK) 293 cells. It is specifically designed as a core component to support high density culture of Expi293F cells in the Expi293 Expression System for scalable transient protein expression.

• Supports growth of suspension 293 cultures to densities of over 1.5 x 10^7 cells/mL
• Transfection compatible serum-free suspension culture medium enables transfection efficiencies of greater than 70% using ExpiFectamine transfection reagent
• Enables sustained, high level expression of high density transiently transfected cultures, achieving yields of up to 1 gram per liter of recombinant protein
• Supports growth and transfection of 293 cells in culture formats of less than 1 mL in multiwell plates to greater than 10L in disposable bioreactors
• Does not contain phenol red

Expi293 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. Expi293 Expression Medium contains no human or animal-origin components. The medium is not recommended for adherent cell cultures.

Product use
Customers using Expi293 Expression Medium in a manufacturing process, who have a submission with the FDA, may request a letter of authorization from us to reference our Type II Drug Master File (DMF).

CD 293 AGT™ Medium (Gibco™)

CD 293 AGT™ is a protein-free, chemically-defined medium in an easy-to-use granular format. CD 293 AGT™ is optimized for the growth of suspension cultures of 293 cells.
Advanced Granulation Technology = AGT

Expi293™ Met (–) Expression Medium (Gibco™)

Expi293 Met (–) Expression Medium is a cGMP-manufactured, chemically defined, serum-free, protein-free, animal origin-free, methionine-free medium for growth and transfection of Expi293F cells. The medium is part of the Expi293 platform for rapid, high-yield transient protein expression from mammalian HEK293 cells. It is designed for use in combination with the ExpiFectamine 293 Met (–) Transfection Kit for applications where labelling of methionine residues in proteins is desired. Note: the medium will not support cell growth or expression unless supplemented with methionine.

Expi293 Met (–) Expression Medium features include:
• Supports growth of suspension 293 cultures to densities of over 1.5 x 107 cells/mL
• Equivalent performance to Expi293 Expression Medium (Cat. No. A1435101)
• Does not contain methionine
• Does not contain phenol red
• Formulated with GlutaMAX I Supplement
• Supplementation with methionine required

L-methionine (methyl-13C) and L-selenomethionine labeling reagents are available separately.

293 SFM II (Gibco™)

293 SFM II is a serum-free, low-protein (<10 µg/ml) formulation optimized for high-density suspension culture of 293 cells (1). (It is not suitable for adherent 293 cell cultures.) This product replaces 293 SFM (Cat. No. 10970-010). 293 SFM II is animal-origin free. Formulated without L-glutamine for increased stability; add 20 ml of 200 mM L-glutamine or 20 ml of GlutaMAX™-I Supplement per 1,000 ml of medium prior to use.

Note:
A 293 Medium Master file has been submitted to the FDA. Permission to cross-reference the Master File may be obtained by contacting Technical Services or your local Sales Representative.

CD 293 Medium (1X) (Gibco™)

CD 293 Medium is a chemically-defined, protein-free medium optimized for the growth of suspension cultures of 293 cells. CD 293 Medium contains no proteins or peptides of animal, plant, or synthetic origin. There are also no undefined lysates or hydrolysates in the formulation.

Formulated without L-glutamine for increased stability; add 20 ml of 200 mM L-glutamine or 20 ml of GlutaMAX™-I Supplement per 1,000 ml of medium prior to use.

A 293 Medium Master file has been submitted to the FDA. If you wish to cross-reference a Master file for CD 293 Medium, please contact Technical Services or your local Sales Representative.