Proceedings of the National Academy of Sciences - PNAS, 2011-07, Vol.108 (27), p.11187-11192
2011
Details
- Autor(en) / Beteiligte
- Titel
- Immunoglobulin domain crossover as a generic approach for the production of bispecific IgG antibodies
- Ist Teil von
- Proceedings of the National Academy of Sciences - PNAS, 2011-07, Vol.108 (27), p.11187-11192
- Ort / Verlag
- United States: National Academy of Sciences
- Erscheinungsjahr
- 2011
- Link zum Volltext
- Quelle
- EZB Electronic Journals Library
- Beschreibungen/Notizen
- We describe a generic approach to assemble correctly two heavy and two light chains, derived from two existing antibodies, to form human bivalent bispecific IgG antibodies without use of artificial linkers. Based on the knobs-into-holes technology that enables heterodimerization of the heavy chains, correct association of the light chains and their cognate heavy chains is achieved by exchange of heavy-chain and light-chain domains within the antigen binding fragment (Fab) of one half of the bispecific antibody. This "crossover" retains the antigen-binding affinity but makes the two arms so different that light-chain mispairing can no longer occur. Applying the three possible "CrossMab" formats, we generated bispecific antibodies against angiopoietin-2 (Ang-2) and vascular endothelial growth factor A (VEGF-A) and show that they can be produced by standard techniques, exhibit stabilities comparable to natural antibodies, and bind both targets simultaneously with unaltered affinity. Because of its superior side-product profile, the CrossMabCH¹â»CL was selected for in vivo profiling and showed potent antiangiogenic and antitumoral activity.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0027-8424eISSN: 1091-6490DOI: 10.1073/pnas.1019002108Titel-ID: cdi_crossref_primary_10_1073_pnas_1019002108
- Format
- –
- Schlagworte
- Angiogenesis, angiopoietin-2, Angiopoietin-2 - immunology, Animals, Antibodies, Antibodies, Bispecific - biosynthesis, Antibodies, Bispecific - chemistry, Antibodies, Bispecific - metabolism, Antibody Affinity, Antibody Specificity, Antigens, Binding sites, Biological Sciences, Bispecific antibodies, Cell Line, Cell Line, Tumor, Crossovers, Dimers, Female, Humans, immunoglobulin G, Immunoglobulin G - biosynthesis, Immunoglobulin G - chemistry, Immunoglobulin G - metabolism, Immunoglobulins, Mathematical constants, Medical treatment, Mice, Mice, Inbred BALB C, Mice, SCID, Models, Molecular, Neovascularization, Physiologic, Protein Engineering, Protein Structure, Tertiary, Proteins, Receptors, Recombinant Proteins - biosynthesis, Recombinant Proteins - chemistry, Recombinant Proteins - immunology, Tumors, vascular endothelial growth factor A, Vascular Endothelial Growth Factor A - immunology