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Viral Production Cells (Gibco™)

Gibco Viral Production Cells are a derivative of the HEK 293F cell line, and are a core component of the LV-MAX Lentiviral Production System. Viral Production Cells have been adapted to a special chemically-defined, serum-free and protein-free LV-MAX Production Medium. They are maintained in suspension culture and will grow to high density in LV-MAX Production Medium. Viral Production Cells are highly transfectable by LV-MAX transfection reagent and generate superior lentiviral production compared to polyethyleneimine (PEI)-based lentiviral production methods.

• Suspension culture cells facilitate high-throughput screening or scale-up
• Higher viral production levels than other suspension HEK 293 cells
• Rapid cell growth and high culture viabilities

Frozen cells are supplied in a vial containing 1 mL of cells at 1 x 107 viable cells/mL in LV-MAX Production Medium and 10% DMSO. The cells should be thawed directly into LV-MAX Production Medium.

The cells are typically grown in flasks on a shaker platform in a humidified, CO2 cell culture incubator. However, cultures are scalable in volume from 96-deep well blocks to 2-L flasks and bioreactors. Lentiviral vector harvest is typically performed at two days post-transfection.

FreeStyle™ CHO-S Cells (Gibco™)

FreeStyle™ CHO-S Cells are part of the FreeStyle™ MAX Expression System, which is a breakthrough technology for rapid and high-yield mammalian protein production. This cell line is adapted to high density, serum-freesuspension culture in FreeStyle™ CHO Expression Medium and iscapable of producing high levels of recombinant protein.

Human NTCP SLC Transporter Cells (Gibco™)

TRANSiPORT Human NTCP SLC Transporter Cells are HEK293 cells that transiently overexpress the NTCP solute carrier (SLC) transport protein. Solute carriers are a super-family of membrane transporters that can affect pharmacokinetics and drug exposure by governing the transport of solutes in and out of cells. The NTCP SLC transporter protein is found in hepatocytes.

• Assess potential for transporter-mediated drug metabolism
• Easy to use format
• Obtain high quality results with a large signal-to-noise ratio

Choice of measurement system
Cell-based assays can be performed using radioisotope-labeled compounds, fluorescence-labeled compounds, or non-labeled compounds. The amount of substrate transported into the cells can be measured directly using a liquid scintillation counter, fluorescence plate reader, or LC-MS/MS, thereby allowing direct evaluation of SLC transporter activity.

Assay reliability
Mock HEK293 cells (Cat. No. GM1001) that do not overexpress the SLC transporter are available for use as a negative experimental control. Some compounds may demonstrate high background levels of transport due to the presence of endogenous transporters or non-specific binding.

Rapid results
The convenient product format enables data generation in 2 days from thawing of the cells to final results.

Related products
GM1002 Human OATP1B1 Transporter Cells
GM1003 Human OAT1 Transporter Cells
GM1004 Human OAT3 Transporter Cells
GM1005 Human OCT2 Transporter Cells
GM1006 Human OATP1B3 Transporter Cells
GM1008 Human OCT1 Transporter Cells
GM1014 Human MATE1 Transporter Cells
GM1015 Human MATE2K Transporter Cells
GM1001 Mock Cells

Flp-In™-CHO Cell Line (Invitrogen™)

Flp-In™ Cell Lines are designed for rapid generation of stable cell lines that express a protein of interest from a Flp-In™ expression vector. These cells contain a single stably integrated FRT site at a transcriptionally active genomic locus. Targeted integration of a Flp-In™ expression vector ensures high-level expression of your gene of interest. There are six Flp-In™ Cell Lines available for the generation of isogenic stable cell lines and a Flp-In™ T-REx™ Cell Line for the generation of tetracycline-regulated stable cell lines. Flp-In™-CV-1, Flp-In™-293, Flp-In™-BHK, Flp-In™-Jurkat, and Flp-In™-3T3 Cell Lines were created by transfecting the parent cell lines with pFRT/lacZeo and selecting for stable Zeocin™- resistant clones. The Flp-In™-CHO Cell Line was created by transfecting CHO cells with pFRT/lacZeo2 and selecting for Zeocin™-resistant clones. The Flp-In™ T-REx™-293 Cell Line contains pFRT/lacZeo and pcDNA™6/TR (from the T-REx™ System) stably integrated. Co-transfection of the Flp-In™ Cell Lines with a Flp-In™ expression vector and the Flp recombinase vector, pOG44, results in targeted integration of the expression vector to the same locus in every cell, ensuring homogeneous levels of gene expression.

Choosing your Flp-In™ Vector/Cell Line Combination
The Flp-In™-CV-1, Flp-In™-293, Flp-In™-CHO, and Flp-In™-Jurkat Cell Lines (Figure 1) work well with Flp-In™ vectors that express a gene from the CMV promoter (pcDNA™5/FRT, pcDNA5/FRT/V5-His-TOPO®, and pSecTag/FRT/V5-His-TOPO®). Flp-In™-BHK and Flp-In™-3T3 cells tend to down regulate the CMV promoter. Therefore, it is recommended that the Flp-In™ vectors containing the EF-1α promoter (pEF5/FRT/V5-DEST™ and pEF5/FRT/V5-D-TOPO®) be used with these cell lines.

CTS™ Viral Production Cells (Gibco™)

CTS Viral Production Cells are derived from the human HEK293 cell line and are a core component of the CTS LV-MAX lentiviral production system to produce maximal lentiviral titers. The cells allow high density, serum-free suspension culture with minimal cell clumping in CTS LV-MAX Production Medium. They are specifically validated for lentiviral vector production for the purpose of cell and gene therapy applications, but may be suitable for the production of other viral vectors where the absence of SV40 large T antigen in HEK293 cells is desired. These cGMP-banked cells have gone through a documented validation process to ensure that they can be transfected with multiple plasmids and that viable viral particles can be produced.

Features of the CTS Viral Production Cells include:
• Fully-documented cGMP-banked cell line (HEK293F-derived) with detailed cell line lineage history
• Extensive quality testing based on the US FDA and European Medicines Agency (EMA) guidances for therapeutic use
• Flexible licensing options without royalties

Contact us (outlicensing@thermofisher.com) for more information and access.

293 F Cells, in CD 293 (Gibco™)

Gibco® 293-F cells were cloned from the original 293 cell line and adapted to Gibco® CD 293 Medium. The 293 cell line is a permanent line established from primary embryonic human kidney and transformed with sheared human adenovirus type 5 DNA. The E1A adenovirus gene is expressed in these cells and participates in transactivation of some viral promoters, allowing these cells to produce very high levels of protein. Gibco® 293-F cells in Gibco® CD 293 Medium feature:
• Quick thaw into suspension culture directly in Gibco® CD 293 Medium or Gibco® 293 SFM II
• Faster growth, superior transfection efficiencies and high protein expression levels
• Documented lineage from a low passage Master Cell Bank
• Quality and performance testing

Quick thaw into suspension culture directly in Gibco® CD 293 Medium or Gibco® 293 SFM II
Each vial containing 7.5 × 106 cells can be thawed directly into suspension culture in either Gibco® CD 293 Medium or Gibco® 293 SFM II supplemented with 4 mM L-glutamine or GlutaMAX™ reagent. Protocols are provided in the product manual.

Faster growth, superior transfection efficiencies and high protein expression levels
Gibco® 293-F cells were prepared from a clone selected for fast growth in serum-free medium, superior transfection efficiencies and a high level of protein expression. Optimal transfection efficiencies are obtained with Lipofectamine™ 2000 or 293fectin™ transfection reagents.

Documented lineage from a low passage Master Cell Bank
The parental 293 cells were cloned by limiting dilution; the clone selected exhibited fast growth and high transfection efficiency. This clone was then re-cloned by limiting dilution; of these clones, the 293-F clone was then selected for its fast growth in serum free medium. The serum-free Master Cell Banks were prepared at approximately passage 25.

Quality and performance testing
Each lot of Gibco® 293-F cells is tested for cell growth and viability post-recovery from cryopreservation. In addition, the Master Seed Bank has been tested for contamination of bacteria, yeast, mycoplasma and virus and has been characterized by isozyme and karyotype analysis.

Product Use
For Research Use Only. Not for any animal or human therapeutic or diagnostic use. Caution: Handle as potentially biohazardous material under at least Biosafety Level 2 containment. This product contains Dimethyl Sulfoxide (DMSO), a hazardous material. Review the Material Safety Data Sheet before handling.

Mock OATP1A2 SLC Transporter Cells (Gibco™)

These Mock OATP1A2 SLC Transporter Cells are intended for use as a negative control in experiments utilizing Human OATP1A2 SLC Transporter Cells (Cat. No. GM1016). These mock cells do not overexpress the SLC OATP1A2 transport protein and so can be used to determine levels of endogenous transport activity as well as non-specific binding of compounds being tested.

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-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.

Human MATE1 SLC Transporter Cells (Gibco™)

TRANSiPORT Human MATE1 SLC Transporter Cells are HEK293 cells that transiently overexpress the OATP2B1 solute carrier (SLC) transport protein. Solute carriers are a super-family of membrane transporters that can affect pharmacokinetics and drug exposure by governing the transport of solutes in and out of cells. TheMATE1 SLC transporter protein is found in hepatocytes.

• Assess potential for transporter-mediated drug metabolism
• Easy-to-use format
• Obtain high-quality results with a large signal-to-noise ratio

Choice of measurement system
Cell-based assays can be performed using radioisotope-labeled compounds, fluorescence-labeled compounds, or non-labeled compounds. The amount of substrate transported into the cells can be measured directly using a liquid scintillation counter, fluorescence plate reader, or LC-MS/MS, thereby allowing direct evaluation of SLC transporter activity.

Assay reliability
Mock SLC Transporter Cells (Cat. No. GM1001) that do not overexpress the SLC transporter are available for use as a negative experimental control. Some compounds may demonstrate high background levels of transport due to the presence of endogenous transporters or non-specific binding.

Rapid results
The convenient product format enables data generation in two days from thawing of the cells to final results.

T-REx™-293 Cell Line (Invitrogen™)

T-REx™ Cell Lines stably express the tetracycline repressor protein (Table 1). They save significant time and effort when using the T-REx™ System. The T-REx™ Cell Lines are functionally tested by transient transfection with the positive control vector pcDNA™4⁄TO⁄lacZ. T-REx™ Cell Lines exhibit extremely low basal expression levels in the repressed state and high expression upon induction with tetracycline (Figure 1).

Flp-In™-BHK Cell Line (Invitrogen™)

Flp-In™ Cell Lines are designed for rapid generation of stable cell lines that express a protein of interest from a Flp-In™ expression vector. These cells contain a single stably integrated FRT site at a transcriptionally active genomic locus. Targeted integration of a Flp-In™ expression vector ensures high-level expression of your gene of interest. There are six Flp-In™ Cell Lines available for the generation of isogenic stable cell lines and a Flp-In™ T-REx™ Cell Line for the generation of tetracycline-regulated stable cell lines. Flp-In™-CV-1, Flp-In™-293, Flp-In™-BHK, Flp-In™-Jurkat, and Flp-In™-3T3 Cell Lines were created by transfecting the parent cell lines with pFRT/lacZeo and selecting for stable Zeocin™- resistant clones. The Flp-In™-CHO Cell Line was created by transfecting CHO cells with pFRT/lacZeo2 and selecting for Zeocin™-resistant clones. The Flp-In™ T-REx™-293 Cell Line contains pFRT/lacZeo and pcDNA™6/TR (from the T-REx™ System) stably integrated. Co-transfection of the Flp-In™ Cell Lines with a Flp-In™ expression vector and the Flp recombinase vector, pOG44, results in targeted integration of the expression vector to the same locus in every cell, ensuring homogeneous levels of gene expression.

Choosing your Flp-In™ Vector/Cell Line Combination
The Flp-In™-CV-1, Flp-In™-293, Flp-In™-CHO, and Flp-In™-Jurkat Cell Lines (Figure 1) work well with Flp-In™ vectors that express a gene from the CMV promoter (pcDNA™5/FRT, pcDNA5/FRT/V5-His-TOPO®, and pSecTag/FRT/V5-His-TOPO®). Flp-In™-BHK and Flp-In™-3T3 cells tend to down regulate the CMV promoter. Therefore, it is recommended that the Flp-In™ vectors containing the EF-1α promoter (pEF5/FRT/V5-DEST™ and pEF5/FRT/V5-D-TOPO®) be used with these cell lines.

T-REx™-HeLa Cell Line (Invitrogen™)

T-REx™ Cell Lines stably express the tetracycline repressor protein (Table 1). They save significant time and effort when using the T-REx™ System. The T-REx™ Cell Lines are functionally tested by transient transfection with the positive control vector pcDNA™4⁄TO⁄lacZ. T-REx™ Cell Lines exhibit extremely low basal expression levels in the repressed state and high expression upon induction with tetracycline (Figure 1).

Expi293F™ Cells (cGMP banked) (Gibco™)

Expi293F Cells are derived from the human 293 cell line, and are a core component of the Expi293 Expression System. They are maintained in suspension culture and will grow to high density in Expi293 Expression Medium. Expi293F Cells are highly transfectable and achieve higher protein yields per cell compared to standard 293 cell lines resulting in transient protein expression yields of up to one gram per liter.

• For product ordering information, please contact us at outlicensing@thermofisher.com
• cGMP-banked suspension culture cells, pre-adapted to Expi293 Expression Medium
• Derived from the same Master Seed Bank as our standard Expi293F Cells (Cat No. A14527)
• Fully documented cGMP-banked cell line
• A component of the fully integrated, animal origin-free Expi293 Expression System for applications requiring cGMP-banked cells
• A Trial Licensing Program allows you or your CMO/CRO provider to purchase one vial of cells for research use with a simple, one-time payment, enabling full evaluation before committing to a commercial license
• Flexible commercial licensing options without royalties

Frozen cells are supplied in a vial containing 1.1 mL of cells at 1 x 107 viable cells/mL in Expi293 Expression Medium and 10% DMSO. Cells should be thawed directly into Expi293 Expression Medium.

Fully documented cGMP cell line
After execution and payment for a Commercial Production License, a Cell Line Documentation Package (>200 pages and specific to the lot of cells purchased) is provided that includes the entire lineage history of the cells starting at receipt of the initial vial at Thermo Fisher Scientific through delivery to the purchaser, as well as all testing reports.

Commercial licensing that is simple, flexible, and without royalties
Our Trial Licensing Program allows you or your CMO/CRO provider to obtain cGMP-banked Expi293F Cells for research use only with a one-time payment. As you move towards commercial use, a flexible Commercial Production or Service License structure is available without the burden of royalties, keeping it simple as a one-time payment. For more information regarding our Trial Licensing Program and commercial licensing, email us at outlicensing@thermofisher.com.

Human MATE2K SLC Transporter Cells (Gibco™)

TRANSiPORT Human MATE2K SLC Transporter Cells are HEK293 cells that transiently overexpress the MATE2K solute carrier (SLC) transport protein. Solute carriers are a super-family of membrane transporters that can affect pharmacokinetics and drug exposure by governing the transport of solutes in and out of cells. The MATE2K SLC transporter protein is found in kidney proximal tubule cells.

• Assess potential for transporter-mediated drug metabolism
• Easy to use format
• Obtain high quality results with a large signal-to-noise ratio

Choice of measurement system
Cell-based assays can be performed using radioisotope-labeled compounds, fluorescence-labeled compounds, or non-labeled compounds. The amount of substrate transported into the cells can be measured directly using a liquid scintillation counter, fluorescence plate reader, or LC-MS/MS, thereby allowing direct evaluation of SLC transporter activity.

Assay reliability
Mock HEK293 cells (Cat. No. GM1001) that do not overexpress the SLC transporter are available for use as a negative experimental control. Some compounds may demonstrate high background levels of transport due to the presence of endogenous transporters or non-specific binding.

Rapid results
The convenient product format enables data generation in 2 days from thawing of the cells to final results.

Related products
GM1002 Human OATP1B1 Transporter Cells
GM1003 Human OAT1 Transporter Cells
GM1004 Human OAT3 Transporter Cells
GM1005 Human OCT2 Transporter Cells
GM1006 Human OATP1B3 Transporter Cells
GM1008 Human OCT1 Transporter Cells
GM1013 Human NTCP Transporter Cells
GM1014 Human MATE1 Transporter Cells
GM1001 Mock Cells