Identification of a Potent and Selective Focal Adhesion Kinase Proteolysis Targeting Chimera: Targeting Noncatalytic Functions of Focal Adhesion Kinase to Facilitate Antitumor Immunity
Focal adhesion kinase (FAK) has emerged as a promising therapeutic target since its pivotal involvement in tumorigenesis. However, FAK inhibitors exhibit limited efficacy in suppressing FAK's noncatalytic functions, potentially compromising their therapeutic outcomes. Herein, we developed a series of FAK PROTACs derived from our previously characterized FAK inhibitor E10. Among them, compound D4 demonstrated a potent and selective FAK degradation effect, with enhanced in vitro pharmacological activity relative to E10, and upregulated antigen processing and presentation-related genes. Further studies confirmed D4-mediated FAK degradation augmented surface expression of major histocompatibility complex class I (MHC-I) on tumor cells by repressing FAK kinase-independent function, thereby enhancing tumor antigen presentation, facilitating the activation of cytotoxic CD8+ T cells, and clearance of tumor cells in vivo. These findings indicate that pharmacological degradation of FAK increases tumor immunogenicity through promoting antigen presentation and confers enhanced therapeutic benefits compared to FAK inhibitors.
基金:
National Natural Science Foundation of China [22377086]; Tianfu Jincheng Laboratory, City of Future Medicine [TFJC-2024-JB001]; The 1.3.5 project for disciplines of excellence from West China Hospital of Sichuan University [ZYGD23035, ZYYC23008]; Projects of Sichuan Provincial Department of Science and Technology [2023ZYD0094]
第一作者机构:[1]Sichuan Univ, West China Hosp, Dept Emergency Med, Chengdu 610041, Peoples R China[2]Sichuan Univ, West China Hosp, Lab Emergency Med, State Key Lab Biotherapy, Chengdu 610041, Peoples R China[3]Sichuan Univ, West China Hosp, Collaborat Innovat Ctr Biotherapy, Chengdu 610041, Peoples R China[4]Univ Elect Sci & Technol China, Sichuan Canc Hosp & Inst, Sichuan Clin Res Ctr Canc, Dept Clin Res,Sichuan Canc Ctr, Chengdu 610041, Peoples R China
共同第一作者:
通讯作者:
通讯机构:[1]Sichuan Univ, West China Hosp, Dept Emergency Med, Chengdu 610041, Peoples R China[2]Sichuan Univ, West China Hosp, Lab Emergency Med, State Key Lab Biotherapy, Chengdu 610041, Peoples R China[3]Sichuan Univ, West China Hosp, Collaborat Innovat Ctr Biotherapy, Chengdu 610041, Peoples R China[5]Sichuan Univ, Childrens Med Key Lab Sichuan Prov, Chengdu 610041, Peoples R China
推荐引用方式(GB/T 7714):
Wei Wei,Li Guangmei,Hu Zuli,et al.Identification of a Potent and Selective Focal Adhesion Kinase Proteolysis Targeting Chimera: Targeting Noncatalytic Functions of Focal Adhesion Kinase to Facilitate Antitumor Immunity[J].JOURNAL OF MEDICINAL CHEMISTRY.2025,68(15):15933-15959.doi:10.1021/acs.jmedchem.5c00921.
APA:
Wei, Wei,Li, Guangmei,Hu, Zuli,Hu, Xiang,Hu, Rong...&Liu, Zhihao.(2025).Identification of a Potent and Selective Focal Adhesion Kinase Proteolysis Targeting Chimera: Targeting Noncatalytic Functions of Focal Adhesion Kinase to Facilitate Antitumor Immunity.JOURNAL OF MEDICINAL CHEMISTRY,68,(15)
MLA:
Wei, Wei,et al."Identification of a Potent and Selective Focal Adhesion Kinase Proteolysis Targeting Chimera: Targeting Noncatalytic Functions of Focal Adhesion Kinase to Facilitate Antitumor Immunity".JOURNAL OF MEDICINAL CHEMISTRY 68..15(2025):15933-15959