How to choose the best antibody generation technique for your project?

Hybridoma development: A time-tested method for high-affinity antibodies

How it works: Hybridoma technology involves fusing B lymphocytes with myeloma cells, creating a theoretically immortal cell line that stably produces monoclonal antibodies.

Advantages:

• Produces high-affinity antibodies thanks to in vivo affinity maturation.
• Allows for long-term antibody production through an established cell line. However, genetic drift or mutations may impact stability over time, so sequencing the antibody is the best way to ensure long-term production.
• Can be used to generate fully human antibodies by immunizing humanized mice—particularly relevant for therapeutic antibody development.
• Maintains natural VH/VL pairing, ensuring better developability compared to methods where this pairing is lost.

Disadvantages:

• Requires the use of animals.
• A lengthy process, taking 15 to 20 weeks. At ProteoGenix, our proprietary RocketAbs immunization protocol reduces this timeframe by up to 50%.
• Offers less antibody diversity than Single B Cell Screening due to losses during fusion and clonal selection.
• Limited to immunizing rats and mice. However, humanized mice can be used for therapeutic antibody development, though we recommend combining them with Single B Cell Screening to enhance diversity.
• Not suitable for non-immunogenic or toxic antigens.

Best suited for:
Projects where murine antibodies are acceptable and the antigen is immunogenic.

Why choose ProteoGenix hybridoma development service?

• Guaranteed-functionality packages tailored to your application.
• RocketAbs immunization protocol for up to 50% faster immunization compared to competitors.

Single B cell screening: A fast and high-affinity antibody discovery approach

How it works: This method directly selects single B lymphocytes that secrete the best antibodies against your target antigen.

Advantages:

• Produces high-affinity antibodies thanks to in vivo affinity maturation.
• Faster than hybridoma development, as no cell fusion is required—saving several weeks in custom antibody generation.
• Provides greater antibody diversity than hybridoma development since there are no losses from cell fusion.
• Preserves natural VH/VL pairing, enhancing developability.
• Theoretically applicable to any species.

Disadvantages:

• Requires the use of animals.
• Not suitable for non-immunogenic or toxic antigens.

Best suited for:

• High-affinity antibodies for diagnostic applications.
• Fully human therapeutic antibody development, provided the antigen is immunogenic and non-toxic.

Why choose ProteoGenix single B-cell screening service?

• At least 960 positive clones guaranteed.
• Functionality-guaranteed packages, similar to our hybridoma services.
• RocketAbs immunization protocol for up to 50% faster immunization.

Phage Display: A rapid, animal-Free method for challenging antigens

How it works: Phage display selects antibodies from a phage library expressing antibody fragments (typically Fab or scFv).

Advantages:

• The fastest antibody generation method—sequences can often be obtained in as little as one month.
• Enables antibody discovery for non-immunogenic or toxic targets, which isn’t possible with immunization-based methods.
• Provides easy access to the antibody sequence, facilitating optimization and engineering.
• Not species-limited—fully human antibodies and VHH can be generated.
• Once built, antibody libraries can be reused for multiple projects.
• Completely animal-free (true for naïve libraries).

Disadvantages:

• Does not preserve natural VH/VL pairing, sometimes requiring optimization for improved developability.
• Since selection occurs in vitro, there is no in vivo affinity maturation for naïve libraries, resulting in slightly lower affinity antibodies compared to immunization-based methods.

Best suited for:

• Projects with tight deadlines.
• Applications requiring a large number of binders.
• Cases where the antigen is toxic or non-immunogenic.
• Fully human therapeutic antibody development.
• Projects where animal-free methods are preferred.

Why choose ProteoGenix phage display services?

• Exclusive proprietary libraries designed for therapeutic antibody discovery (e.g., human antibody libraries, patient-derived libraries for cancer and autoimmune diseases).
• At least three binders guaranteed.

Final takeaways: The best method depends on your project!

As we’ve seen, no single method is perfect—each has its strengths and limitations. The key to success is choosing the right approach based on your specific project needs. To make your decision easier, we’ve put together a comparison table summarizing the key factors to consider:

And of course, if you have an antibody development project, visit our dedicated custom antibody services page. Our specialists are here to guide you toward the best strategy for your project!