机构:[1]Department of Tumor Immunotherapy, Fourth Hospital of Hebei Medical University and Hebei Cancer Institute, Shijiazhuang, China河北医科大学第四医院肿瘤免疫科.东临床科室[2]Department of Pathology, Hebei Medical University, Shijiazhuang, China[3]Research Center, Fourth Hospital of Hebei Medical University and Hebei Cancer Institute, Shijiazhuang, China临床科室河北省肿瘤研究所河北医科大学第四医院[4]State Key Laboratory of Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Non-small cell lung cancer (NSCLC) is one of the most common and malignant carcinoma worldwide, and the incidence and mortality are increasing rapidly. Immunotherapy targeting programmed death 1/programmed death ligand 1 (PD-L1) signaling has shown prominent clinical effects in treating NSCLC; however, a poor understanding of the associated regulating molecular mechanisms of PD-L1 has become one of the biggest obstacles for further improving efficacy. Bridging integrator-1 (BIN1) can regulate numerous cancer-related molecules to exert multiple tumor-suppressing effects by either interacting or not interacting with c-MYC. In the present study, we observed that there exists a negative correlation between the expression of PD-L1 and BIN1 in NSCLC tissues. The expression levels of BIN1 and PD-L1 were significantly related to the tumor, lymph node and metastasis grade (TNM) stage, invasion range and lymph node metastasis. Simultaneously, for NSCLC patients, the expression statuses of BIN1 and PD-L1 might be independent prognostic factors. Furthermore, the expression of tumor-infiltrating lymphocytes was positively associated with BIN1 expression and negatively related to PD-L1 expression in NSCLC tissues. Importantly, we showed that PD-L1 was under the control of BIN1. In addition, the overexpression of BIN1 could inhibit the c-MYC and epithelial growth factor receptor (EGFR)-dependent PD-L1 expression and reverse the suppressive immuno-microenvironment in vivo. Taken together, our findings indicated that BIN1 restoration in NSCLC could reverse PD-L1-mediated immune escape by inactivating the c-MYC and EGFR/mitogen-activated protein kinase pathways.
基金:
This work was supported by the National Natural Science Foundation of China
(81201607), Postdoctoral Fund of China (2013M540883), and Outstanding Youth
Foundation of Hebei Province (H2014206320).
第一作者机构:[1]Department of Tumor Immunotherapy, Fourth Hospital of Hebei Medical University and Hebei Cancer Institute, Shijiazhuang, China
共同第一作者:
通讯作者:
通讯机构:[1]Department of Tumor Immunotherapy, Fourth Hospital of Hebei Medical University and Hebei Cancer Institute, Shijiazhuang, China[*1]Department of Tumor Immunotherapy, Fourth Hospital of Hebei Medical University and Hebei Cancer Institute, 169 Tianshan Street, Shijiazhuang, Hebei, 050035, China.
推荐引用方式(GB/T 7714):
Wang J.,Jia Y.,Zhao S.,et al.BIN1 reverses PD-L1-mediated immune escape by inactivating the c-MYC and EGFR/MAPK signaling pathways in non-small cell lung cancer[J].ONCOGENE.2017,36(45):6235-6243.doi:10.1038/onc.2017.217.
APA:
Wang, J.,Jia, Y.,Zhao, S.,Zhang, X.,Wang, X....&Liu, L..(2017).BIN1 reverses PD-L1-mediated immune escape by inactivating the c-MYC and EGFR/MAPK signaling pathways in non-small cell lung cancer.ONCOGENE,36,(45)
MLA:
Wang, J.,et al."BIN1 reverses PD-L1-mediated immune escape by inactivating the c-MYC and EGFR/MAPK signaling pathways in non-small cell lung cancer".ONCOGENE 36..45(2017):6235-6243