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The use of genetic engineering has vastly improved our capabilities to create animal models relevant in preclinical research. With the recent advances in gene-editing technologies, it is now possible to very rapidly create highly tunable mouse models as needs arise. Here, we provide an overview of genetic engineering methods, as well as the development of humanized neonatal Fc receptor (FcRn) models...
A key element for the successful development of novel therapeutic antibodies is to fully understand their pharmacokinetic and pharmacodynamic behavior before performing clinical trials. While many in vitro modeling approaches exist, these simply cannot substitute for data obtained from appropriate animal models. It was established quite early that the unusual long serum half-life of immunoglobulin...
Mice genetically engineered to express human FcRn are valuable models for the evaluation of therapeutic antibodies in the context of human FcRn in vivo. However, only limited clinical chemistry information on these mouse strains is available. Thus, we have compared 30 clinical chemical parameters of C57BL/6J wild-type mice, murine FcRn-knockout mice, and two human FcRn transgenic mouse strains expressing...
The concept of novel binding proteins as an alternative to antibodies has undergone rapid development and is now ready for practical use in a wide range of applications. Alternative binding proteins, based on suitable scaffolds with desirable properties, are selected from combinatorial libraries in vitro. Here, we describe an approach using a β-sheet of human γ-B-crystallin to generate a universal...
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