机构:[1]Department of Rehabilitation Medicine and Laboratory of Animal Tumor Models, National Clinical Research Center for Geriatrics and Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China.四川大学华西医院[2]Department of Targeting Therapy & Immunology and Laboratory of Animal Tumor Models, Cancer Center and National Clinical Research Center for Geriatrics and Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China.四川大学华西医院[3]Core Facilities, West China Hospital, Sichuan University, Chengdu, Sichuan, China.四川大学华西医院[4]Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, China.[5]Department of Rehabilitation Medicine and Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China.四川大学华西医院[6]Key Laboratory of Rehabilitation Medicine in Sichuan Province, Chengdu, Sichuan, China.
Background: CAR-T is emerging as an effective treatment strategy for hematologic malignancies, however its effectiveness for treating solid tumors, such as Hepatocellular Carcinoma (HCC) is limited. Here, we screened a variety of CAR-T cells that target c-Met to investigate their potential to induce HCC cell death in vitro. Methods: Human T cells were transduced to express CARs by lentiviral vector transfection. c-Met expression in human HCC cell lines and CARs expression were monitored by flow cytometry. Tumor cell killing was evaluated by Luciferase Assay System Kit. The concentrations of cytokine were tested by Enzyme-linked immunosorbent assays. Knock down and overexpression studies targeting c-Met were conducted to assess the targeting specificity of CARs. Results: We found that CAR T cells expressing a minimal amino-terminal polypeptide sequence comprising the first kringle (kringle 1) domain (denoted as NK1 CAR-T cells), efficiently killed HCC cell lines that expressed high levels of the HGF receptor c-Met. Furthermore, we report that while NK1 CAR-T cells were efficient at targeting SMMC7221 cells for destruction, and its potency was significantly attenuated in parallel experiments with cells stably expressing short hairpin RNAs (shRNAs) that suppressed c-Met expression. Correspondingly, overexpression of c-Met in the embryonic kidney cell line HEK293T led to their enhanced killing by NK1 CAR-T cells. Conclusion: Our studies demonstrate that a minimal amino-terminal polypeptide sequence comprising the kirngle1 domain of HGF is highly relevant to the design of effective CAR-T cell therapies that kill HCC cells expressing high levels of c-Met.
基金:
This work was supported by the 1.3.5 project for disciplines of excellence, West China Hospital, Sichuan University [ZYYC20002 to X Zhao] and the Department of Science and Technology of Sichuan Province [2020JDRC0019 to D Yang].
语种:
外文
PubmedID:
中科院(CAS)分区:
出版当年[2023]版:
大类|4 区医学
小类|4 区免疫学
最新[2023]版:
大类|4 区医学
小类|4 区免疫学
第一作者:
第一作者机构:[1]Department of Rehabilitation Medicine and Laboratory of Animal Tumor Models, National Clinical Research Center for Geriatrics and Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
通讯作者:
通讯机构:[5]Department of Rehabilitation Medicine and Institute of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China.[6]Key Laboratory of Rehabilitation Medicine in Sichuan Province, Chengdu, Sichuan, China.
推荐引用方式(GB/T 7714):
Ma Haiyan,Wei Wenwen,Liang Dandan,et al.HGF-Based CAR-T Cells Target Hepatocellular Carcinoma Cells That Express High Levels of c-Met[J].Immunological investigations.2023,1-14.doi:10.1080/08820139.2023.2232402.
APA:
Ma Haiyan,Wei Wenwen,Liang Dandan,Xu Xing,Yang Dong...&Zhao Xudong.(2023).HGF-Based CAR-T Cells Target Hepatocellular Carcinoma Cells That Express High Levels of c-Met.Immunological investigations,,
MLA:
Ma Haiyan,et al."HGF-Based CAR-T Cells Target Hepatocellular Carcinoma Cells That Express High Levels of c-Met".Immunological investigations .(2023):1-14