Shanghai Biomed-union Biotechnology Co., Ltd.

Xilian Yue

Gentao Liu

Guoxiang Wu

A fusion protein for restoring functions of failing immune cells and application thereof. The fusion protein has a functional area for recognizing the failing immune cell and a functional area for conducting activation and amplification on the failing immune cell. The two functional areas are connected through a non-functional amino acid fragment with a certain length. The functional area for recognition uses the immune checkpoint specific antibody to recognize a phenotypic receptor of failing immune cells. The functional area for conducting activation and amplification adopts the cytokine or functionally-similar mutants, a ligand of the phenotypic receptor or functionally-similar mutants or an activating antibody to activate failing immune cells. The fusion protein recognizes failing immune cells, conducts activation and amplification on recognized failing immune cells, restores functions of killing antigen positive cells by the immune cells, and enhances inhibition of tumor growth and virus infection control.

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Shanghai, China

Xilian Yue