In vivo pharmacokinetic enhancement of monomeric Fc and monovalent bispecific designs through structural guidance
Journal Article
·
· Communications Biology
- AstraZeneca, Gaithersburg, MD (United States). Antibody Discovery and Protein Engineering. R&D; Denali Therapeutics, South San Francisco, CA (United States); OSTI
- AstraZeneca, Gaithersburg, MD (United States). Antibody Discovery and Protein Engineering. R&D
- AstraZeneca, Gaithersburg, MD (United States). Early Oncology. R&D
- AstraZeneca, Gaithersburg, MD (United States). Antibody Discovery and Protein Engineering. R&D; FDA Center for Biologics Evaluation and Research, Silver Spring, MD (United States). Division of Cellular and Gene Therapies
- AstraZeneca, Gaithersburg, MD (United States). Dosage Form Design and Development. R&D
- AstraZeneca, Gaithersburg, MD (United States). Clinical Pharmacology and Safety Science. R&D
- Janssen Research and Development, Spring House, PA (United States). Janssen BioTherapeutics
In a biologic therapeutic landscape that requires versatility in targeting specificity, valency and half-life modulation, the monomeric Fc fusion platform holds exciting potential for the creation of a class of monovalent protein therapeutics that includes fusion proteins and bispecific targeting molecules. Here we report a structure-guided approach to engineer monomeric Fc molecules to adapt multiple versions of half-life extension modifications. Co-crystal structures of these monomeric Fc variants with Fc neonatal receptor (FcRn) shed light into the binding interactions that could serve as a guide for engineering the half-life of antibody Fc fragments. These engineered monomeric Fc molecules also enabled the generation of a novel monovalent bispecific molecular design, which translated the FcRn binding enhancement to improvement of in vivo serum half-life.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)
- Sponsoring Organization:
- National Institutes of Health (NIH); USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Biological and Environmental Research (BER)
- Grant/Contract Number:
- AC02-76SF00515
- OSTI ID:
- 1903975
- Journal Information:
- Communications Biology, Journal Name: Communications Biology Journal Issue: 1 Vol. 4; ISSN 2399-3642
- Publisher:
- Springer NatureCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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