Fish & Richardson P.C.
Genetically modified mice expressing humanized PD-1
Provided is a method for preparing a PD-1 gene-modified humanized animal model. The method utilizes the CRIPSR/Cas9 technique to replace partial fragments of a mouse PD-1 gene with fragments of a human PD-1 gene using homologous recombination by constructing a targeting vector, thereby preparing a gene-modified humanized mouse. This mouse can normally express a PD-1 protein containing the functional domain of the human PD-1 protein, and can be used as an animal model for mechanism research regarding PD-1, PD-L1 and other signals, for screening regulators, and for toxicological research. The method has an important and high application value in studies on functions of the PD-1 gene and in the development of new drugs.
Biocytogen Pharmaceuticals (Beijing) Co., Ltd
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Jichao Yang Xiaofei Rui Yanan Yuting Yuelei
Du Bai Zhou Huang Guo Hu Shen