摘要:
The present disclosure provides T-cell modulatory multimeric polypeptides that comprise an immunomodulatory polypeptide that exhibits reduced binding affinity to a cognate co-immunomodulatory polypeptide. A T-cell modulatory multimeric polypeptide is useful for modulating the activity of a T cell, and for modulating an immune response in an individual.
摘要:
Disclosed herein is a composition including a recombinant nucleic acid sequence that encodes an antibody to a Hepatitis B viral antigen. Also disclosed herein is a method of generating a synthetic antibody in a subject by administering the composition to the subject. The disclosure also provides a method of preventing and/or treating a Hepatitis B virus infection in a subject using said composition and method of generation.
摘要:
The present application relates to optimized IgG immunoglobulin variants, engineering methods for their generation, and their application, particularly for therapeutic purposes.
摘要:
Genetically modified mice and methods for making an using them are provided, wherein the mice comprise a replacement of all or substantially all immunoglobulin heavy chain V gene segments, D gene segments, and J gene segments with at least one light chain V gene segment and at least one light chain J gene segment. Mice that make binding proteins that comprise a light chain variable domain operably linked to a heavy chain constant region are provided. Binding proteins that contain an immunoglobulin light chain variable domain, including a somatically hypermutated light chain variable domain, fused with a heavy chain constant region, are provided. Modified cells, embryos, and mice that encode sequences for making the binding proteins are provided.
摘要:
A HBS-specific antibody, a LHBS-specific antibody, a WT LHBS-specific antibody, an immunoassay kit comprising the antibodies, and a method of detecting pre-S2 deletion mutant LHBS using the immunoassay kit are disclosed herein. The method comprises incubating a biological sample with a first antibody to captured HBS proteins; detecting the LHBS and WT LHBS bound to the immobilized first antibody, respectively; and calculating the amount of the pre-S2 deletion mutant LHBS protein by subtracting the amount of the WT LHBS protein from that of the LHBS protein. Advantageously, by the method described herein, the amount of the pre-S2 deletion mutant LHBS, a potential high-risk marker for HCC incidence in chronic HBV carriers and recurrence in HCC patients after hepatectomy surgery, in a biological sample may be easily calculated without mutual influence between the WT and pre-S mutant LHBS while reducing the labor-intensive process for cloning each gene product before analysis.
摘要:
This invention relates to a high affinity recombinant humanized antibody fragment (scFv) specific for hepatitis B surface antigen having unique inter/intra chain bonding interaction because of 28 altered amino acid residues from the original mouse (5S) antibody and its chimeric Fab form, wherein fine tuning of the vernier zone residue makes it closer to the human sequence without any structural constraints.
摘要:
The invention relates to compositions and methods for treating a host infected with a pathogen. The composition comprising a population of polyclonal bispecific binding molecules that can target and eliminate a host cell infected with the pathogen. Methods for activating and arming cytotoxic immune cells with the composition for use in treating a patient infected with a pathogen are also provided.
摘要:
A genetically engineered enucleated erythroid cell comprises a phenylalanine ammonia lyase receiver polypeptide that is not associated with the membrane of the erythroid cell, produced by genetically engineering the cell by viral transduction, RNA transfection, or RNA electroporation.
摘要:
Rationally designed antibodies and polypeptides that comprise multiple Fc region amino acid substitutions that synergistically provide enhanced selectivity and binding affinity to a target Fc receptor are provided. The polypeptides are mutated at multiple positions to make them more effective when incorporated in antibody therapeutics than those having wild-type Fc components.
摘要:
The present invention is related to the fields of molecular biology, virology, immunology and medicine. The invention provides a composition comprising an ordered and repetitive antigen or antigenic determinant array. The invention also provides a process for producing an antigen or antigenic determinant in an ordered and repetitive array. The ordered and repetitive antigen or antigenic determinant is useful in the production of vaccines for the treatment of infectious diseases, the treatment of allergies and as a pharmaccine to prevent or cure cancer and to efficiently induce self-specific immune responses, in particular antibody responses.