Immunoglobulin (Ig) G is the dominant secondary immune antibody and it has the longest half-life of the five groups (IgA, IgD, IgE, IgG, and IgM) because of recycling by neonatal Fc receptors (FcRn). Since they lack FcRn immunity, there are also some downsides of the ultra-short half-life of non-IgG antibodies that make their use largely inadmissible: fast clearance from the blood, rapid shedding, poor persistence on the target (e.g., tumors). At present, Creative Biolabs has launched antibody half-life extension service for non-IgG antibodies to optimize stability and performance.
Creative Biolabs has developed a state-of-the-art antibody half-life extension service designed to overcome the inherent stability challenges of non-IgG antibodies. Through innovative engineering approaches, we enhance pharmacokinetics and extend circulation time, ultimately maximizing therapeutic impact.
Modifying the glycosylation of non-IgG antibodies enhances their pharmacokinetic and pharmacodynamic properties, enabling them to be retained in vivo longer. It selectively regulates glycosylation to increase stability and lengthen the half-life of antibodies.
Our C-terminal fusions fuse human albumin or FcRn-binding sequences to non-IgG antibodies, resolving the lack of FcRn-binding sequences and prolonging the half-life of the antibody.
The construction of hybrid antibodies combines non-IgG structures with IgG-like features, leveraging the stability and FcRn binding characteristics of IgG antibodies while retaining non-IgG-specific benefits.
Through albumin-binding modifications, non-IgG antibodies gain extended in vivo exposure, increasing their therapeutic window and efficacy in a variety of applications.
Half-life is the average duration of time elapsed after antibody molecules are formed, which is typically defined as the period of time it takes to flush out half of the known content of immunoglobulin from an animal's body. In clinical applications, a very short serum half-life opens up new uses and dosages of medications. As therapeutic antibodies continue to grow on the global market, a great deal of attention has been given to optimizing the engineering, safety, and efficacy of therapeutic antibodies, and stability is among the top priorities frequently discussed during the preclinical development process. The benefit of extending the half-life of therapeutic antibodies ranges from therapeutic improvement to improved patient compliance, which ultimately means fewer treatment cycles and lower costs. With these reassuring advantages in mind, designers will often optimize the stability of the antibodies by appropriately lengthening the half-life once they have determined which therapeutic antibodies they want.
Fig.1 Different strategies to extend the half-life of therapeutic protein.1
A: Increasing the half-life means that non-IgG antibodies stay in action longer in the body, decreasing the need for multiple doses, decreasing the cost of treatment, improving patient compliance, and possibly increasing therapeutic effectiveness across a variety of fields.
A: The technologies Creative Biolabs uses are glycoengineering, C-terminal albumin/FcRn-binding motif fusion, hybrid antibodies, and improved albumin-binding capacity. These techniques are tailored to maximize stability, retention, and therapeutic efficiency.
A: Glycoengineering is a process for adjusting the glycosylation patterns of antibodies to optimize their pharmacokinetic and pharmacodynamic actions. This strategy maintains antibody reactivity in the body so that non-IgG antibodies continue to work for longer.
A: We utilize biocompatible components and tailored modifications in our engineering strategies to reduce the risk of immunogenic responses while maintaining the desired half-life extension.
A: Our service can modify various non-IgG antibodies including IgM, IgA, and IgE, with specialized strategies for each antibody class's unique characteristics.
A: Yes, our service offers complete customization to meet specific therapeutic goals, species requirements, and application needs, providing flexible optimization processes tailored to each project's unique demands.
A: We deliver comprehensive technical support throughout the entire development process, including expert consultation, project guidance, process optimization, and continuous support to ensure project success.
A: We implement comprehensive testing protocols to measure serum half-life, stability profiles, target binding efficiency, and pharmacokinetic properties, ensuring the modified antibodies meet the desired specifications.
Our customer service representatives are available 24/7/365. You may contact us anytime for assistance. Orders can be placed online, over the phone, by email, or by fax.
Reference
For Research Use Only. Our products and services are NOT intended for diagnostic or therapeutic applications.