Monoclonal antibodies (mAbs) are antibodies that are made by identical immune cells, all clones of a unique parent cell. They have monovalent affinity, binding to the same epitope. Monoclonal mouse anti-human antibodies are produced by immunizing mice with human antigens, leading to the production of antibodies that specifically target human proteins .
The development of monoclonal antibodies involves several steps, including the immunization of mice, fusion of spleen cells with myeloma cells to create hybridomas, and screening for the desired antibody specificity . These antibodies are used in various applications, including diagnostics, therapeutics, and research. They are particularly valuable in immunohistochemistry (IHC) for detecting specific proteins in tissue samples .
One of the challenges with using mouse monoclonal antibodies in humans is the potential for an immune response against the mouse-derived components. To address this, techniques such as CDR-grafting and resurfacing are used to humanize these antibodies, reducing their immunogenicity while retaining their specificity .