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Fully human antibody development services

Get the best start for your therapeutic antibody development!

  • Single B cell screening or phage display
  • 6 proprietary human phage display libraries
  • 1500+ mAbs already developed

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Are you seeking to develop a highly promising therapeutic antibody? In the race to develop groundbreaking therapeutic antibodies, fully human antibodies are your key to success. With over 50% of FDA-approved therapeutic antibodies now being fully human, choosing this approach significantly increases your chances of regulatory approval.
As a leading therapeutic antibody development company, ProteoGenix offers you unparalleled diversity in fully human antibody development technologies to accelerate your drug discovery process:

    • Single B cell screening on humanized mice: This method ensures the identification of high-quality leads, with a guaranteed screening of 960 positive clones.
    • Human phage display antibody libraries: Benefit from our exclusive proprietary libraries (3 naïve and 3 immune libraries from cancer, autoimmune diseases, and COVID-19 human donors).

 
By selecting ProteoGenix, you gain access to the most diverse range of fully human antibody development solutions, empowering you to bring innovative therapeutics to market faster. Let’s innovate together !

Why choose ProteoGenix fully human antibody development services?

Unmatched expertise and comprehensive solutions
2 fully human antibody development technologies

With single B cell screening et phage display, ProteoGenix offers the most comprehensive solutions for fully human antibody development.

6 exclusive human antibody libraries

With access to 6 unique human antibody libraries, including 3 specialized for cancer, autoimmune diseases, and COVID-19, ProteoGenix offers an unparalleled resource for discovering novel therapeutic antibodies.

A full suite of antibody engineering services

From bispecifics to ADCs and Fc-fusion proteins, our team of experts can support you at every stage of your antibody development program.

Proven track record

With over 1500 monoclonal antibodies developed, ProteoGenix has a long-standing history of delivering high-quality antibodies to our clients.

Streamlined project management and dedicated support

One-stop solution

From antigen design to stable cell line generation, ProteoGenix provides a seamless, end-to-end service, eliminating the need for multiple vendors and ensuring a smooth project timeline.

PhD-Level Project Management

Our experienced project managers provide dedicated support throughout the entire development process, ensuring that your project stays on track and meets your specific needs.

Why fully human antibodies are the preferred choice in biotherapeutics?

Therapeutic antibodies have revolutionized the treatment of numerous diseases. However, early versions, derived from mice, often encountered a significant challenge: the human anti-mouse antibody (HAMA) response. When injected into humans, these mouse-derived antibodies were recognized as foreign by the human immune system, leading to the production of human antibodies against the mouse antibodies. This HAMA response could neutralize the therapeutic antibody, reducing its efficacy and potentially causing adverse side effects.

To overcome the limitations of mouse-derived antibodies, researchers developed techniques to produce increasingly humanized antibodies. Today, fully human antibodies dominate the market. These molecules, generated directly from human genetic sequences, offer several key advantages:

  • Elimination of the HAMA response: By being entirely human, these antibodies are not recognized as foreign by the human immune system, completely eliminating the risk of a HAMA response. This results in improved treatment tolerability and efficacy.
  • Enhanced safety: Beyond the absence of HAMA, fully human antibodies generally exhibit a better safety profile with fewer adverse side effects.
  • Optimal efficacy: Their high specificity and affinity for the therapeutic target ensure maximum efficacy, uncompromised by an immune response.
  • Accelerated development: Modern production methods, such as phage display, enable the rapid generation of large panels of fully human antibodies, eliminating the time-consuming humanization steps required for mouse-derived antibodies.

 
In summary, fully human antibodies represent the future of biotherapeutics. By addressing the critical issue of the HAMA response and offering a superior safety and efficacy profile, they have become the gold standard in the development of new treatments.

3 fully human antibody development platforms tailored to your needs

At ProteoGenix, we understand the critical importance of having access to a diverse range of fully human antibody development technologies. That’s why we offer three cutting-edge platforms, combined with our expert team, to provide you with the best possible starting point for your therapeutic antibody project.

Our diverse technological capabilities and experienced scientists enable us to deliver tailored solutions for a wide range of therapeutic targets. Whether you’re seeking highly specific antibodies for cancer, autoimmune diseases, or emerging pathogens like COVID-19, we have the expertise and resources to meet your needs.

Naive phage display library screening
  • Highly diverse naive human library
  • Fab or scFv formats
  • Minimum 3 binders guaranteed
  • Suitable for any antigen from non-immunogen to toxic ones
  • Your antibodies in 4 weeks
Immune phage display library screening
  • Highly diverse naive human library
  • Fab or scFv formats
  • Minimum 3 binders guaranteed
  • Suitable for any antigen from non-immunogen to toxic ones
  • Your antibodies in 4 weeks
Single B cell screening using humanized mice
  • Generate highly specific antibodies against your target
  • Your antibodies in 7 weeks thanks to our proprietary RocketAbs immunization platform, reducing immunization time by 50%

Which fully human antibody discovery platform to choose for your project?

Selecting the right antibody development strategy is crucial for project success. At ProteoGenix, we offer multiple cutting-edge platforms, each tailored to meet specific project requirements. Here’s an overview of our most popular options:

Phage display with human libraries: rapid antibody discovery for cancer, autoimmune diseases, and COVID-19

Phage display technology stands out for its speed and versatility, delivering antibodies in just 4 weeks. This method excels with challenging antigens, whether toxic or non-immunogenic, consistently identifying binders in nearly all cases. Key advantages of our phage display platform:

  • Ready-to-use naïve and immune libraries
  • Ideal for toxic or non-immunogenic antigens
  • Requires minimal antigen quantity (approximately 1mg)
  • Access to our exclusive immune human libraries for cancer, autoimmune diseases, and COVID-19 targets
Our Premium Human Antibody Libraries for Phage Display
Library Type Format Species Size (clones)
LiAb-SFMAXTM Naive scFv & Fab Human – 5 different ethnic groups – 368 donors 5.37 X 1010
LiAb-SFaTM Naive scFv Human 1.5 X 109
LiAb-FabTM Naive Fab Human 2.00 X 1010
LiAb-SFCOVID-19TM Immune scFv Human – Donors that recovered from COVID-19 – Ideal for COVID-19 antibody generation 1.19 X 1010
LiAb-SFCANCERTM Immune scFv & Fab 48 patients - 7 types of cancers: breast, prostate, colorectal, renal, lung, skin melanoma, acute myeloid leukemia 3.81 X 1010 (scFv) 3.72 X 1010 (Fab)
LiAb-SFAUTOIMMTM Immune scFv & Fab 42 patients - 7 autoimmune/inflammatory diseases: Sjögren's syndrome, psoriasis, psoriatic arthritis, rheumatoid arthritis, systemic lupus erythematosus, Crohn's disease, ulcerative colitis 1.08 X 1011 (scFv) 1.06 X 1011 (Fab)

Single B cell screening: high-specificity antibodies in large numbers

Single B cell screening is the go-to solution for generating highly specific antibodies against your target antigen. This innovative technique leverages humanized mouse immunization, resulting in antibodies that have undergone in vivo affinity maturation. Key benefits of our single B cell screening platform:

  • Produces highly specific and affine antibodies
  • Ideal for generating a large number of antibodies
  • Preserves natural pairing of heavy and light chains, enhancing developability
  • Allows sorting of numerous B cells based on target antigen affinity

 
By offering both phage display and single B cell screening technologies, ProteoGenix ensures that you have access to the most suitable platform for your unique project needs. Our expert team is ready to guide you in selecting the optimal strategy, setting your antibody development project on the path to success from day one.

Service details

Humanized mouse single B cell screening
Step Details Timeline Deliverables
Humanized mice immunization Antigen validation by SDS-Page; immunization with our RocketAbs protocol; bleedings, serum titer tests 29-43 days
Single B-cell sorting & screening PBMCs and spleen lymphocyte isolation, single B-cell sorting by FACS, B-cell cultivation, screening 2-3 weeks Up to 30 supernatant samples
Recombinant antibody production Sequence top clones, transient expression, ELISA screening 2 weeks Up to 10 supernatant samples, report, amino acid sequences of top clones

Screening of human phage display antibody libraries (naïve or immune)

Step Naïve Library Immune Library Timeline Deliverables
Library screening (4-6 rounds of library panning) x x
Screening & validation by ELISA x x
Phage DNA extraction + antibody sequencing x x 4-5 weeks from library screening to antibody sequencing Final report DNA sequence of the best binder Full ownership of the sequences

Success Story: development of human anti-TREM-2 antibodies for Alzheimer’s disease treatment

In collaboration with Isar Biosciences, ProteoGenix has developed groundbreaking human anti-TREM-2 antibodies. Targeting a key receptor involved in the brain’s immune response, these antibodies hold significant promise for Alzheimer’s disease treatment. Our approach has resulted in patented antibodies.

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