Sunshine Guojian Pharmaceutical (Shanghai) Co., Ltd.

Sunshine Guojian Pharmaceutical (Shanghai) Co., Lt

Jianhe Chen

Le Zhao

Zhenping Zhu

Haomin Huang

Jie Zhao

Fei Xu

Chenghai Zhang

Xuesai Zhang

Qingrou Li

Jinlin Guo

Wei Dang

Lingqiao Zhu

Honghai Gao

Provided is an antibody binding to human HER2 or an antigen-binding fragment thereof capable of specifically binding to human HER2. Compared with Perjeta, the combination of the antibody or an antigen-binding fragment thereof and Herceptin has improved biological activity in inhibiting the proliferation of tumor cells overexpressing HER2. The antibody or an antigen-binding fragment thereof has an antigen-binding epitope different from known antibodies binding to human HER2, can be used to prepare a drug for treating a disease related to HER2 overexpression, such as cancer, and has good prospects for clinical application.

Antibody binding to human HER2 and preparation method and use thereof

An anti-human PD-1 monoclonal antibody, and a preparation method therefor and an application thereof. The anti-human PD-1 monoclonal antibody has good bioactivity, can effectively bind with an extracellular region of a human PD-1 protein receptor, and can effectively seal PD-1 protein at protein level and cellular level and block the binding of the PD-1 protein with a ligand PD-L1, thereby effectively enhancing immunity. The monoclonal antibody can be applied independently or jointly with other antitumor drugs to tumor immunotherapy and the diagnosis and screening of patients with PD-L1 positive tumors; and the monoclonal antibody has a promising prospect in the preparation of drugs for treating tumors, resisting autoimmune diseases and the like.

Anti-PD-1 monoclonal antibody, and preparation method therefor and application thereof

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Shanghai, China

Jianhe Chen