Structural analysis of light chain-driven bispecific antibodies targeting CD47 andPD-L1
Pauline Malingea*, Xavier Chaucheta*, Jérémie Bourguignona, Nicolas Bossona, Sébastien Callouda, Tereza Bautzovaa,Marie Borleta, Mette Laursenb, Vinardas Kelpsasb, Nadia Roseb, Franck Gueneaua, Ulla Ravna, Giovanni Magistrellia,and Nicolas Fischera
Light Chain Bioscience is thrilled to share in our recent article published in mAbs, some structural insights on how antibody light chains can drive antigen binding.
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In contrast to natural antibodies that rely mainly on the heavy chain to establish contacts with their cognate antigen, we have developed a bispecific antibody format, called the kappa-lambda body (κλ body), bearing a common heavy chain and two different light chains that drive antigen binding and specificity of each arm of the bispecific antibody.
The structures can be found here :
https://www.rcsb.org/structure/8RP8
https://www.rcsb.org/structure/8RPB
Importantly, κλ bodies retain truly native human sequences and structure, maximizing their therapeutic potential. Currently three bispecific κλ bodies are undergoing evaluation in Phase I clinical trials.
Light Chains can do it!
Published: June 7th, 2024│volume 16, Article 2362432