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Anti-idiotypic Antibody Production for ADA Assay

Introduction of Anti-idiotypic Antibody and ADA Assay

Monitoring of immune responses caused by biotherapeutic drug treatment is a regulatory requirement during preclinical development through to clinical trials. ADA is one of the most common causes of the efficacy loss of some drugs. Moreover, the appearance of ADA can trigger an allergic reaction. However, optimization and validation of assays for anti-drug antibodies (ADA) are challenging due to the excess of human antibodies in serum and the relatively low immune response. With the development of ADA assays, various methods have been used in actual applications. Among both of them, anti-idiotypic antibodies were widely applied as a positive control to measure the concentration of specific ADA conveniently and sensitively combined with quantitative methods such as sandwich ELISA.

Factors influencing ADA detection in immunoassays. Fig.1 Factors influencing ADA detection in immunoassays.1

Application of Anti-idiotypic Antibody in ADA Assay

There are three commonly used methods in recent ADA assays: ELISA, cell-based assays, and label-free biosensors. As a mature method, ELISA is the simplest approach which also takes sensitivity into account. As a positive control, anti-idiotypic antibodies have strong specificity and high sensitivity, which provides a general approach to detect various target antibodies by ELISA. Therefore, the development of specific anti-idiotypic antibodies is necessary to expand the range of ELISA applications in ADA assay.

ELISA for ADA detection.Fig.2 ELISA for ADA detection.2

Fortunately, recombinant monoclonal antibodies against biotherapeutics can be created using sophisticated antibody libraries and well-established phage display technology. Moreover, modified hybridomas technology also can be used to prepare anti-idiotypic antibodies.

Creative Biolabs provides commercial products and customized one-stop services for anti-idiotypic antibody development. For more details please feel free to contact us. You can also click here to see more custom Anti-Idiotypic Antibodies Production Services from Creative Biolabs to meet your specific requirements.

References

  1. Vaisman-Mentesh, Anna, et al. "The molecular mechanisms that underlie the immune biology of anti-drug antibody formation following treatment with monoclonal antibodies." Frontiers in Immunology 11 (2020): 1951.
  2. Bendtzen, Klaus. "Immunogenicity of anti-TNF-α biotherapies: II. Clinical relevance of methods used for anti-drug antibody detection." Frontiers in immunology 6 (2015): 109.

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