Stable Cell Line Development Service

Our custom stable cell line development service offers you tailor-made solutions for your project according to your specific requirements. With over 24 years of experience as a research service provider, we have gained extensive expertise in all areas of cell line development. Our scientific team has in-depth knowledge of working with a wide range of cell lines and targets, and has successfully completed numerous research projects for our clients and partners in the pharmaceutical and biotechnology industries. Let us know your target protein and parental cell line of choice and we will design the best and fastest strategy for you.

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Stable Cell Line Development Service Provides Highly Customized Solutions For All Cell Lines & Targets

Our qualified scientific team at PhD and postdoctoral level can work with any cell line that is commercially available, delivered from your lab or selected from our collection. Our experienced team is dedicated to delivering highly customized solutions to ensure the success of your project.

We can handle projects under biosafety level 1 and even 2 (BSL1 or 2). For expression of your gene of interest, you can choose between our proprietary, robust and industry-leading ExoIN technology, available for constitutive and inducible expression, or you can simply provide an expression construct suitable for your cell line. We offer several non-viral and viral gene delivery systems for the most efficient gene transfer even into difficult cell lines. After successful development of a stable cell line, either as a polyclonal cell pool or a monoclonal cell line, we confirm and validate the functional expression of your target protein according to your requirements and the nature of the target protein.

Our project management team, which is highly valued by our customers, will lead you through the whole project and keep you constantly informed on the project progress. That ensures highest flexibility, efficiency and will lead to maximum success.

Main Advantages of Stable Cell Line Development Service

  • Proprietary ExoIN technology: applicable to any cell line and all target classes.
  • Royalty free – Licence Free for R&D applications – No hidden costs
  • Best starting point for your assay development, drug screening and functional studies
  • One-stop-shop: from cloning to shipment of customized ready-to-use stable assay cell line (as a cell pool or single cell clone)
  • Fast adaptation to your requirements thanks to highly customized and flexible project design
  • Dedicated project management team ensures close communication between experts and clients and keeps you constantly informed on the project progress.
  • High Quality – Made in Germany

Stable Cell Line Development Service Process

A diagram showing the eight process steps of Trenzyme’s Stable Cell Line Development Service, starting from the Quality Control of Incoming Cell Line and ending with Delivery. The steps are represented in a flowchart format, detailing each stage of the process.

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Why trenzyme is Your Preferred Service Provider for Stable Cell Line Development

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Any Cell Line and Target

We can work with any commercially available cell line, our in-house available cell lines or with any cell line from your lab. Cell lines up to BSL2, iPSC or other difficult-to-handle cells are welcome.

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Variety of Delivery Systems

We have optimized the processes and focused on chemical and physical gene delivery systems since they give excellent results also for difficult-to-transfect cell lines. But, if desired, we can also apply viral gene delivery systems to ensure that we generate your stable cell line based on any parental cell line.

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Highly Customized Service

Whether you require a simple polyclonal fluorescent reporter cell line or a complex project involving the generation of a stable inducible cell line with coexpression of multiple targets, our unique ExoIN- or ExoINDUCE-based technology ensures industry-leading quality at challenging timelines.

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One-stop-shop for Stable Cells

From sourcing the parental cells or selecting the appropriate in-house cell lines to generating a stable cell line and producing cell banks – we can take care of everything for you.

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Free Up Your Resources

We are prepared to setup and optimize your new cell-based assay and deliver a 200-vial master cell bank with functional validation. In all cases, we ensure that the project meets your requirements and fits within your budget.

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No Hidden Costs

No royalties, no license fees for R&D applications, no limitations. We only charge for the service we provide and commercial usage can be granted easily, if desired.

Extensive Experience with Various Cell Lines and Target Classes

Cell Lines

Human Cell Lines

  • HEK293 (HEK-293; HEK/293; HEK 293; HEK,293; 293; 293 HEK; 293 Ad5; Human Embryonic Kidney 293)
  • HEK293T (Hek293T; HEK-293T; HEK 293T; HEK-293-T; HEK 293 T; 293-T; 293 T; 293T; Human Embryonic Kidney 293T; 293tsA1609neo)
  • T-REx-293 (T-REx 293; T-REx293; TRex-293; TREx293; T-REx-HEK293; T-REx HEK 293; HEK293-T-REx; HEK293-Trex)
  • Flp-In-T-REx-293 (Flp-In-T-REx 293; Flp-In T-REx-293; Flp-In T-REx 293; Flp-In T-Rex HEK293; Flp-In 293 T-Rex; Flp-In-T-REx; 293-Flip-in-TRex; HEK293 Flp-In T-REx; HEK293FlpIN; 293FlpIn T-Rex)
  • HT1080 (Ht-1080; HT 1080; HT 1080.T)
  • Jurkat (JM; JM-Jurkat; Jurkat-FHCRC; Jurkat FHCRC; FHCRC-11; FHCRC-Subklon 11; FCCH1024)
  • Jurkat E6-1 (JurkatE6-1; Jurkat, Clone E6-1; Jurkat, Klon E6-1; Jurkat-Clone E6-1; Jurkat (Clone E6-1); Jurkat-Klon E6-1; Jurkat (Klon E6-1); JURKAT E-6.1; JURKAT E-61; Jurkat-E6; Jurkat E6; J.E6-1; E6-1; Jurkat J6)
  • NK92 (NK-92; Natural Killer-92; NK-92.05; Neukoplast; aNK>)
  • MCF-7 (MCF 7; MCF.7; MCF7; Michigan Cancer Foundation-7; ssMCF-7; ssMCF7; MCF7/WT; MCF7-CTRL; IBMF-7)
  • RPE-1 (hTERT RPE1; hTERT-RPE-1; hTERT RPE-1; hTERT-RPE; TERT-RPE1; RPE-1; RPE1; RPE1-hTERT; RPE1-hTert; RPE-hTERT)
  • Raji (RAJI; P1-Raji)
  • MDAH-041 (MDAH 041; 041S; MDAH041)
  • K562 (K-562; K.562; K 562; KO; GM05372; GM05372E)
  • THP-1 (THP1; THP 1; THPI; THP-1(ATCC); THP-1-O; O-THP-1; Tohoku Hospital Pediatrics-1)
  • human iPSC lines (Human iPS Cell Line; Human iPSC; Induced Pluripotent Stem Cells; iPS Cell; iPSC)
  • SH-SY5Y (SH-Sy5y; SHSY5Y; SHSY-5Y; SK-SH-SY5Y; SY5Y)
  • LUHMES (LUnd Human MESencephalic; luhmes)
  • U2OS (U-2 OS; U-2OS; U-2-OS; U2-OS; U20-S; U20S; 2T)
  • HepG2 (HEP-G2; Hep G2; HEP G2; HepG2; HEPG2)
  • NCI-H716 (NCI H716; H716; H-716; NCIH716)
  • Huh-7 (HuH-7; HUH-7; HuH7; Huh7; HUH7; HUH7.0; JTC-39; Japanese Tissue Culture-39)
  • LNCaP (LNCAP; LNCap; Ln-Cap; LNCaP-RPCI; Lymph Node Carcinoma of the prostate)
  • Ramos (RAMOS; Ramos 1; RA 1; RA.1; Ra #1; Ra No. 1; Ramos(RA1); Ramos-RA1; Ramos (RA 1); Ramos (RA #1); Ramos (RA)

Murine Cell Lines

  • A20 (A-20)
  • NIH3T3 (NIH/3T3; NIH-3T3; NIH 3T3; 3T3; 3T3NIH; 3T3-Swiss; Swiss-3T3; Swiss/3T3; Swiss 3T3; Swiss3T3)
  • NSC-34 (NSC 34; NSC34; Neuroblastoma x Spinal Cord-34)
  • NSO (NSO; NS/0; NS/O; NS-0)
  • C2C12 (C2c12; C2-C12; C12)
  • 3T3-L1 (3T3 L1; 3T3L1; 3T3-L1 ad; NIH-3T3-L1; NIH3T3-L1)
  • B16-F10 (B16/F10; B16 F10; B16F10; B16 melanoma F10)
  • CT26.WT (CT-26 WT; CT26.wt; CT26WT)
  • Renca (RenCa; RENCA; Renal Carcinoma)

Rat Cell Lines

  • PC12 (PC-12; PC 12; PC12.1)
  • Rat2 (RAT2; Rat-2; RAT-2; Rat 2)
  • MRMT-1 (MRMT 1; MRMT1; MRMT)

Hamster Cell Lines

  • CHO-K1 (CHO K1; CHOK1; CHO cell clone K1; GM15452)
  • CHO-S (CHO-s; CHOS)
  • CHO-G alpha 16 

Insect Cells

  • HighFive (BTI-TN-5B1-4; BTI-TN5B1-4; BTI-Tn5B14; BTI-Tn 5B1-4; Tn-5B1-4; Tn 5B1-4; Tn5 B1-4; Tn5B1-4; TN5B14; TnH5; High Five; High 5; High-5; High5; Hi-five; Hi-5; Hi5; Tn-5)
  • Sf9 (SF9; sf9; SF-9; Sf-9; sf-9; Sf 9; Spodoptera frugiperda clone 9; Sf clone 9; IPLB-Sf-9AE; IPLB-SF-9AE; IPLB-SF-9; IPLB-Sf-9; IPLB-Sf9)
  • Sf21 (SF21; Sf-21; SF-21; IPLB-SF-21-AE; IPLB-Sf21-AE; IPLB-SF21-AE; IPLB-SF 21AE; IPLB-Sf21AE; IPLB-SF21AE; IPLB-SF-21; IPLB-Sf-21; IPLB-SF 21; IPLB-Sf21; IPLB-SF21)

Target Classes

Transmembrane Receptors

  • Thyrosine kinase receptor (receptor tyrosine kinase; receptor-tyrosine kinase; receptor protein-tyrosine kinase; receptor-type protein-tyrosine kinase; transmembrane receptor protein tyrosine kinase; tyrosine kinase growth factor receptor; tyrosine receptor kinase; RTK; TKR; TRK)
  • Thyrosine phosphate receptor (receptor tyrosine phosphatase; protein tyrosine phosphatase receptor; receptor-type protein-tyrosine phosphatase; transmembrane receptor protein tyrosine phosphatase; R-PTP; RPTP; receptor-type PTP; receptor protein-tyrosine phosphatase)
  • G protein coupled receptor (G protein-coupled receptor; seven-transmembrane domain receptor; 7TM receptor; heptahelical receptor; serpentine receptor; G protein-linked receptor; GPLR; GPCR; 7TMR)
  • Integrin receptors (cell adhesion receptors; extracellular matrix receptors; RGD receptors; transmembrane heterodimeric receptors; cell-surface adhesion molecules; ECM-binding receptors; cell-matrix adhesion proteins)

Cell surface receptors

  • Cell surface receptors

Channel & Transporter Proteins

  • Potassium channel (Voltage-gated potassium channels; Kv channels; inwardly rectifying potassium channels; Kir channels; Calcium-activated potassium channels; KCa channels; two-pore domain potassium channels; K2P channels; tandem pore domain potassium channels)
  • Sodium-dependent dopamine transporter (Dopamine transporter; DAT; DA transporter; DAT1; Solute carrier family 6 member 3; SLC6A3; dopamine transporter)
  • Glucose transporter (GLUT; GluT; glucose transporter protein; facilitative glucose transporter; solute carrier family 2; SLC2A)
  • Glutamate/ aspartate transporter (Excitatory amino acid transporter; EAAT; glutamate transporter; sodium-dependent glutamate transporter; solute carrier family 1 member; SLC1; neurotransmitter transporter)

Intracellular Proteins

  • Protein kinase inhibitor

Secreted Proteins

  • Antibodies (immunoglobulin; Ig; immune globulin; gamma globulin; antibody protein; immunoglobulin protein; Ig protein; IgG1; IgG2; IgG3; IgG4; IgG; IgA; IgD; IgM; IgE)
  • Extracellular matrix proteins (ECM proteins; matrix proteins; extracellular proteins; intercellular matrix proteins)
  • Cytokines (lymphokines; monokines; chemokines; interleukins; interferons; tumour necrosis factors)

Other Targets

  • Gqi5 (chimeric Gq protein; promiscuous G protein; G protein with exchanged C-terminal amino acids)
  • Tet repressor (TetR; TetR protein; Tetracycline repressor protein; Tet repressor protein; Tetracycline-responsive repressor; Tc-responsive repressor; Tetracycline-controlled transcriptional repressor)
  • Various reporter proteins

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Modules & Explanation of trenzyme’s ExoIN Technology

The ExoIN technology links the expression of the target protein to the expression of a selection marker using the ExoIN tag. The target protein, selection marker and ExoIN tag are transcribed together as a single mRNA transcript. The subsequent co-translational cleavage at the ribosome immediately after the ExoIN tag results in an unmodified and functional target protein. In addition, the target protein and selection marker are expressed in a 1:1 stoichiometric ratio. This makes the ExoIN technology superior to conventional linker sequences such as IRES sequences, which often have variable stoichiometric expression ratios, or 2A peptides, which leave amino acid residues on the expressed proteins. The ExoIN technology offers you a highly flexible platform from single protein expression to co-expression of multiple proteins, where your target protein(s) can be combined with different promoters and selection markers to find the expression cassette and ultimately the combination that will give optimal expression levels in your final stable cell line.

This means that once selected, the stable cell pool will transcribe the target protein almost homogeneously. This unique technology allows easy and efficient selection of high quality stable cell populations with no risk of subsequent silencing or loss of expression, often eliminating the need for time-consuming and expensive single cell cloning for many applications.

A graphic illustrating ExoIN Modules for Constitutive Expression, showing the different steps including transcription, translation, and cleavage, visualizing the modular design and functionality of Trenzyme’s proprietary ExoIN technology.

Main Advantages of trenzyme’s ExoIN Technology

  • Generation of ready-to-use stable assay cell lines within weeks instead of months – depending on target and parental cell line no single cell cloning is needed.
  • Fast feasibility answer since transient test is predictive for stable cell line.
  • The appearance of false-positive cells (resistant to selection marker but without target expression) can be minimized by our ExoIN technology.
  • ExoIN technology is applicable to any cell line and all target classes.
  • Target remains unmodified and functional.
  • Continuous selection of target expression on protein level (no silencing / no stability issues).
  • Easy co-expression of different targets (three or even more).
  • Homogenous recombinant expression within cell pool.
  • Reliable and powerful platform – more than 1,000 generated cell lines for international clients.
A timeline graphic for Stable Cell Line Development – Constitutive Expression, highlighting significant time savings with trenzyme’s proprietary ExoIN technology compared to traditional cell line development methods.

Watch Our ExoIN technology Video

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An icon representing Quality Control in Trenzyme’s Stable Cell Line Development Service, featuring a form with checked-off items, symbolizing thorough validation and compliance with high-quality standards.

Quality Control Assays

To ensure that you receive the highest quality and validity of your final cell lines, we carry out extensive quality control for our cell line development services. We confirm and validate the functional expression of your target protein according to your requirements and the nature of the target protein. Therefore, we are using a wide range of reliable and established QC methods, some of which are standard in our projects and some of which are optional. Just let us know your preferred method of analysis and we will apply it.

Included Analysis:

  • Assessment of target expression: mRNA (via qPCR) or protein (via Flow cytometry, Western Blot, ELISA or Immunofluorescence)
  • Viability assay
  • Mycoplasma check provided by our partner Eurofins Genomics

Optional Analysis:

  • Cell-Based Assay for validation: e.g. Calcium flux assay, apoptosis assay, reporter assays or phosphorylation assessment
  • Sterility assay
  • Cell line authentication by STR profiling
  • Copy number determination
Further Service Options_trenzyme_Cell Culture Services

Further Options of Stable Cell Line Development Service

Highly flexible and tailor-made solutions for your application. If you require an option that is not listed, please contact us – we will find the ideal solution for you:

  • Once we have generated, thoroughly characterized and validated your customized stable cell line, we lay down a quality-controlled research cell bank by default. Explore our cell expansion and cell banking service for more options, so we can meet your specific needs.
  • We can work with any commercially available cell lines, with our in house available cell lines or with any cell line from your lab. Cell lines up to BSL2, iPSCs or other difficult-to-handle cells are welcome.
  • Tell us your preferred parental cell line (mammalian or insect) and/or your expression system of choice and we will generate the recombinant cell line according to your needs.
  • Inducible target expression (especially suitable for difficult-to-express and toxic targets)
  • GMP-compliant Cell Line Development (for protein production or other applications that require high-end documentation and handling in accordance with guidelines such as ICH and others)
  • Lentiviral gene delivery (for challenging and hard-to-transfect cell lines)

What Our Clients Say About Us

Logo of trenzyme's customer Max Planck Institute for Chemical Ecology

“We were astonished by trenzyme’s recently delivered custom ExoIN cell lines (…)”

PD Dr. D. Wicher, Max Planck Institute for Chemical Ecology

Read all Testimonials

Relevant Publications Suitable to Our Service

A novel cell line from human eccrine sweat gland duct cells for investigating sweating physiology. Int. J. Cosmet. Sci. 2022; 44: 216– 231. (2022)

Welzel J, Grüdl S, Banowski B, Stark H, Sättler A, and Welss T

 

Read the article

Physicochemical and functional characterization of MYL-1501D, a proposed biosimilar to insulin glargine (2021)

Goyal P, Venkatraman Pai H, Kodali P, Vats B, Vajpai N, Annegowda S, Mane K, Mohan S, Saxena S, Bangalore Veerabhadraia A, Palande M, Sasankan Nair P, Chandrashekar More D, Rao Karudumpa U, Jyothirmai K, Bhattacharya A, Almeida F, Gulab Khyade S, Gouda S, Ranayhossaini DJ, Reddy Moole P, Smith JP, Barve A, Melarkode R, and Ullanat R

 

Read the article

Development and validation of a cell based assay for the detection of neutralizing antibodies against recombinant insulins. J. Immunol. Methods 452, 53–62. (2018)

Chatterjee S, Vashishta L, Waichale VS, Nayak VG, Melarkode R, Donnelly CM, Vallano PT, Chirmule N, and Sengupta N

 

Read the article

A botulinum toxin–derived targeted secretion inhibitor downregulates the GH/IGF1 axis. J. Clin. Invest. 122, 3295–3306. (2012)

Somm E, Bonnet N, Martinez A, Marks PMH, Cadd VA, Elliott M, Toulotte A, Ferrari SL, Rizzoli R, Hüppi PS, et al.

 

Read the article

Toll-like receptor 4 variant D299G induces features of neoplastic progression in Caco-2 intestinal cells and is associated with advanced human colon cancer. Gastroenterology 141, 2154–2165. (2011)

Eyking A, Ey B, Rünzi M, Roig AI, Reis H, Schmid KW, Gerken G, Podolsky DK, and Cario E

 

Read the article

Relevant Publications Suitable to Our Service

Open to see relevant publications

A novel cell line from human eccrine sweat gland duct cells for investigating sweating physiology. Int. J. Cosmet. Sci. 2022; 44: 216– 231. (2022)

Welzel J, Grüdl S, Banowski B, Stark H, Sättler A, and Welss T

Read the article


Physicochemical and functional characterization of MYL-1501D, a proposed biosimilar to insulin glargine (2021)

Goyal P, Venkatraman Pai H, Kodali P, Vats B, Vajpai N, Annegowda S, Mane K, Mohan S, Saxena S, Bangalore Veerabhadraia A, Palande M, Sasankan Nair P, Chandrashekar More D, Rao Karudumpa U, Jyothirmai K, Bhattacharya A, Almeida F, Gulab Khyade S, Gouda S, Ranayhossaini DJ, Reddy Moole P, Smith JP, Barve A, Melarkode R, and Ullanat R

Read the article


Development and validation of a cell based assay for the detection of neutralizing antibodies against recombinant insulins. J. Immunol. Methods 452, 53–62. (2018)

Chatterjee S, Vashishta L, Waichale VS, Nayak VG, Melarkode R, Donnelly CM, Vallano PT, Chirmule N, and Sengupta N

Read the article


A botulinum toxin–derived targeted secretion inhibitor downregulates the GH/IGF1 axis. J. Clin. Invest. 122, 3295–3306. (2012)

Somm E, Bonnet N, Martinez A, Marks PMH, Cadd VA, Elliott M, Toulotte A, Ferrari SL, Rizzoli R, Hüppi PS, et al.

Read the article


Toll-like receptor 4 variant D299G induces features of neoplastic progression in Caco-2 intestinal cells and is associated with advanced human colon cancer. Gastroenterology 141, 2154–2165. (2011)

Eyking A, Ey B, Rünzi M, Roig AI, Reis H, Schmid KW, Gerken G, Podolsky DK, and Cario E

Read the article

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Stable Cell Line Development Service FAQs

Does the ExoIN technology also work for supension cell lines and adherent cell lines?

Yes, the ExoIN technology works for both adherent and suspension cell lines.

Which cell lines have you already worked with?

We already worked with dozens of human (e.g. HT1080, Jurkat,…) and non-human cell lines (e.g. NIH3T3, PC12,…).

Which methods do you use for generation of single cell clones?

Routinely we apply flow cytometry based cell sorting or limiting dilution for single cell cloning. For difficult target cell lines we also offer colony picking in soft agar.

How many vials and how many cells per vial are delivered?

Our standard delivery comprises 3 cryovials per stable pool and 3 cryovials per each of the 3 best clones with 1e6 cells per vial for adherent cells or up to 1e7 cells for suspensions cells. Additional vials are possible on request.

Do royalties have to be paid?

The ExoIN cell lines are royalty free.

How many clones do you generate?

Our standard is to expand 30 and test up to 24 clones by the agreed method and deliver the best three clones according the analyses. If you have other requirements, we will discuss your needs and can adapt our standard service to a certain extent.

Do you already have experience with the Flip-In™ T-REx™ Cell Line?

Our cell culture experts have extensive experience in using the Flip-In™ T-REx™ cell line (Flip-In™ and T-REx™ are trademarks of ThermoFisher Scientific / Invitrogen™) to successfully generate recombinant cell lines for our customers, ensuring reliable and efficient results.

See General FAQs
antje-fuhrmann-application-sales-manager-trenzyme

Antje Fuhrmann, PhD

Application & Sales Manager

We would be happy to provide you with support on your cell research project. Contact us and let us know your questions and requests to our cell services. Our scientific experts will reply shortly.

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