Abstract: The invention provides methods for identifying immunobinders, such as scFv antibodies, capable of specifically binding to cell surface antigens, and compositions identified according to said methods.

Abstract: The invention provides methods for identifying immunobinders, such as scFv antibodies, capable of specifically binding to cell surface antigens, and compositions identified according to said methods.

Abstract: The present invention relates to an universal antibody acceptor framework and to methods for grafting non-human antibodies, e.g., rabbit antibodies, using a universal antibody acceptor framework. Antibodies generated by the methods of the invention are useful in a variety of diagnostic and therapeutic applications.

Abstract: scFv antibodies which specifically bind selected antigens and are obtainable by a method comprising (i) selecting from a pool of soluble and stable antibody frameworks a soluble and stable framework matching best the framework of a non-human antibody against the antigen with a certain binding specificity, (ii) either providing said soluble and stable framework with CDRs that bind specifically to said antigen, or mutating the framework of said non-human antibody towards the sequence of said soluble and stable framework, to generate scFv antibodies, (iii) testing the generated antibody for solubility and stability, and testing the generated antibody for antigen binding, and (iv) selecting an scFV that is soluble, stable and binds to the antigen specifically. Also provided are pharmaceutical compositions comprising said scFv antibody, methods of treatment and diagnosis for diseases related to over expression of antigens that are specifically bound by said antibody.

Abstract: Compositions are provided, which can be used as frameworks for the creation of very stable and soluble single-chain Fv antibody fragments. These frameworks have been selected for intracellular performance and are thus ideally suited for the creation of scFv antibody fragments or scFv antibody libraries for applications where stability and solubility are limiting factors for the performance of antibody fragments, such as in the reducing environment of a cell. Such frameworks can also be used to identify highly conserved residues and consensus sequences which demonstrate enhanced solubility and stability.

Abstract: scFv antibodies which specifically bind selected antigens and are obtainable by a method comprising (i) selecting from a pool of soluble and stable antibody frameworks a soluble and stable framework matching best the framework of a non-human antibody against the antigen with a certain binding specificity, (ii) either providing said soluble and stable framework with CDRs that bind specifically to said antigen, or mutating the framework of said non-human antibody towards the sequence of said soluble and stable framework, to generate scFv antibodies, (iii) testing the generated antibody for solubility and stability, and testing the generated antibody for antigen binding, and (iv) selecting an scFV that is soluble, stable and binds to the antigen specifically. Also provided are pharmaceutical compositions comprising said scFv antibody, methods of treatment and diagnosis for diseases related to over expression of antigens that are specifically bound by said antibody.

Abstract: A method for decreasing the immunogenicity of antibody variable domains is disclosed.

Abstract: The invention provides compositions and methods that enhance the delivery of large macromolecules (i.e., greater than 10 kDa), such as antigen-binding polypeptides, across tight junctions. Such methods and compositions are particularly useful for delivering therapeutic antigen-binding polypeptides to the CNS, via intranasal administration, for the treatment of neurological disorders.

Abstract: The invention provides functionalized polypeptides, especially therapeutic polypeptides (e.g., scFv), comprising a linker sequence that can be rapidly and specifically functionalized by the addition of one or functional moieties (e.g., PEG) or binding specificities (e.g., an amino acid sequence with a particular binding specificity). Such functionalized polypeptides are advantageous in that they have improved pharmacokinetic properties (e.g., improved in vivo half-life, tissue penetration and tissue residency time) over non-functionalized polypeptides. Methods for the rapid and reproducible generation of functionalized polypeptides are also provided.

Abstract: The present invention relates to particularly stable and soluble scFv antibodies and Fab fragments specific for TNF?, which comprise specific light chain and heavy chain sequences that are optimized for stability, solubility, in vitro and in vivo binding of TNF?, and low immunogenicity. Said antibodies are designed for the diagnosis and/or treatment of TNF?-related disorders. The nucleic acids, vectors and host cells for expression of the recombinant antibodies of the invention, methods for isolating them and the use of said antibodies in medicine are also disclosed.

Abstract: The invention provides compositions and methods that enhance the delivery of large macromolecules (i.e., greater than 10 kDa), such as antigen-binding polypeptides, across tight junctions. Such methods and compositions are particularly useful for delivering therapeutic antigen-binding polypeptides to the CNS, via intranasal administration, for the treatment of neurological disorders.

Abstract: The present invention relates to particularly stable and soluble scFv antibodies and Fab fragments specific for TNF?, which comprise specific light chain and heavy chain sequences that are optimized for stability, solubility, in vitro and in vivo binding of TNF?, and low immunogenicity. Said antibodies are designed for the diagnosis and/or treatment of TNF?-related disorders. The nucleic acids, vectors and host cells for expression of the recombinant antibodies of the invention, methods for isolating them and the use of said antibodies in medicine are also disclosed.

Abstract: The invention provides functionalized polypeptides, especially therapeutic polypeptides (e.g., scFv), comprising a linker sequence that can be rapidly and specifically functionalized by the addition of one or functional moieties (e.g., PEG) or binding specificities (e.g., an amino acid sequence with a particular binding specificity). Such functionalized polypeptides are advantageous in that they have improved pharmacokinetic properties (e.g., improved in vivo half-life, tissue penetration and tissue residency time) over non-functionalized polypeptides. Methods for the rapid and reproducible generation of functionalized polypeptides are also provided.

Abstract: The present invention relates to soluble and stable anti-VEGF immunobinders comprising CDRs from rabbit monoclonal antibodies. Said antibodies are designed for the diagnosis and/or treatment of VEGF-mediated disorders. The hybridomas, nucleic acids, vectors and host cells for expression of the recombinant antibodies of the invention, methods for isolating them and the use of said antibodies in medicine are also disclosed.

Abstract: The invention provides antibodies that are modified to reduce aggregration propensity, and methods of producing such antibodies. The present invention also provides particularly stable and soluble scFv antibodies and Fab fragments specific for TNF, which comprise specific light chain and heavy chain sequences that are optimized for stability, solubility, in vitro and in vivo binding of TNF, and low immunogenicity. The nucleic acids, vectors and host cells for expression of the recombinant antibodies of the invention, methods for isolating them and the use of said antibodies in medicine are also disclosed.

Abstract: The present invention relates to particularly stable and soluble scFv antibodies and Fab fragments specific for TNF?, which comprise specific light chain and heavy chain sequences that are optimized for stability, solubility, in vitro and in vivo binding of TNF?, and low immunogenicity. Said antibodies are designed for the diagnosis and/or treatment of TNF?-related disorders. The nucleic acids, vectors and host cells for expression of the recombinant antibodies of the invention, methods for isolating them and the use of said antibodies in medicine are also disclosed.

Abstract: The invention provides methods for identifying immunobinders, such as scFv antibodies, capable of specifically binding to cell surface antigens, and compositions identified according to said methods.

Abstract: The invention provides methods for identifying immunobinders, such as scFv antibodies, capable of specifically binding to cell surface antigens, and compositions identified according to said methods.

Abstract: The present invention relates to an antibody acceptor framework and to methods for grafting non-human antibodies, e.g., rabbit antibodies, using a particularly well suited antibody acceptor framework. Antibodies generated by the methods of the invention are useful in a variety of diagnostic and therapeutic applications.

Abstract: The present invention relates to an antibody acceptor framework and to methods for grafting non-human antibodies, e.g., rabbit antibodies, using a particularly well suited antibody acceptor framework. Antibodies generated by the methods of the invention are useful in a variety of diagnostic and therapeutic applications.