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Deng K, Li JX, Yang R, Mou ZQ, Yang L, Yang QQ. Identification and validation of a novel prognostic model for gastric cancer based on m7G-related genes. Transl Cancer Res 2023; 12:1836-1851. [PMID: 37588749 PMCID: PMC10425669 DOI: 10.21037/tcr-22-2614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 05/06/2023] [Indexed: 08/18/2023]
Abstract
Background The role of N7-methyladenosine (m7G)-related genes in the progression and prognosis of gastric cancer (GC) remains unclear. This study aimed to explore prognostic biomarkers for GC based on m7G methylation regulators and to construct a prognostic risk model. Methods RNA sequencing profiles with corresponding clinicopathological information associated with GC of which the histological type was stomach adenocarcinoma (STAD) were obtained from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO), respectively. A total of 29 m7G regulators were extracted from previous studies. According to the expression similarity of m7G regulators, the GC samples obtained from TCGA were further classified into 2 clusters demonstrating different overall survival (OS) rates and genetic heterogeneity, and the differentially expressed genes (DEGs) between these 2 clusters were defined as m7G-related genes. Univariate regression analysis and regression analysis were then used to obtain the prognostic m7G-related genes. The samples in TCGA and Genotype-Tissue Expression (GTEx) were used to verify the differential expression and prognostic value of these m7G-related genes contained in the prognostic model. Subsequently, the risk score was combined with other prognostic factors to develop a nomogram. The predictive ability of the nomogram was evaluated by the standard receiver operating characteristic (ROC) curve. Gene set enrichment analysis (GSEA) was used to identify activation pathways in both groups. Finally, the association between the prognostic model and the immune characteristics of GC were appraised. Results A prognostic model consisting of 11 m7G-related genes was constructed. GC patients in the high-risk group were shown to have a poor prognosis and this result was further demonstrated in each group. The risk model can be applied for patients with different clinical features. The results of GSEA showed that cell adhesion, cell junction, and focal adhesion were highly enriched in the high-risk group. In addition, we found that the expression of programmed cell death ligand 1 (PD-L1) was significantly elevated in the low-risk group, whereas programmed cell death ligand 2 (PD-L2) and tumor necrosis factor receptor superfamily member 4 (TNFRSF4) were overexpressed in the high-risk group. Conclusions We successfully built and verified a m7G relevant prognostic model for predicting prognosis and providing a new train of thought for improving the treatment of GC.
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Affiliation(s)
- Kun Deng
- Department of General Surgery (Gastrointestinal Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Jian-Xin Li
- Department of General Surgery (Gastrointestinal Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Rui Yang
- Department of General Surgery (Gastrointestinal Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Zhi-Qiang Mou
- Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Li Yang
- Department of General Surgery (Hepatobiliary Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Qing-Qiang Yang
- Department of General Surgery (Gastrointestinal Surgery), The Affiliated Hospital of Southwest Medical University, Luzhou, China
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Li Y, Qi Y, Fang Y, Gao H, Zhang H. Design, Synthesis, and Biological Evaluation of 4-Arylamino Pyrimidine Derivatives as FAK Inhibitors and Tumor Radiotracers. Mol Pharm 2022; 19:2471-2482. [PMID: 35481371 DOI: 10.1021/acs.molpharmaceut.2c00180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Focal adhesion kinase (FAK) is considered a promising target for the diagnosis and treatment of cancer. In this work, a series of N,N'-(4-((5-bromo-2-(phenylamino)pyrimidin-4-yl)amino)-1,3-phenylene)diacetamide derivatives were synthesized and evaluated as FAK inhibitors and radiotracers. The studied compounds, possessing the same phenylene-diacetamide chain, exhibited high to moderate enzyme inhibition values (IC50) ranging from 3.7 to 108.0 nM. Compound 13a, which exhibits high FAK enzyme inhibition with an IC50 value of 3.7, could effectively suppress the tumor growth. Furthermore, three compounds were radiolabeled with F-18. Among them, a higher tumor uptake value was observed for [18F]17 (3.73 ± 0.10% ID/g) and [18F]13a (3.66 ± 0.02% ID/g). Compound [18F]18 displayed the highest tumor/blood (35.75) value at 120 min postinjection. In addition, the results from docking studies revealed the binding mechanism of the studied compounds. The findings of this study may provide useful guidance to improve the development of radiotracers and enzyme inhibitors.
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Affiliation(s)
- Ye Li
- College of Chemistry, Beijing Normal University, No. 19 Xinjiekouwai Street, Haidian District, Beijing 100875, China
| | - Yueheng Qi
- College of Chemistry, Beijing Normal University, No. 19 Xinjiekouwai Street, Haidian District, Beijing 100875, China
| | - Yu Fang
- College of Chemistry and Chemical Engineering, Anyang Normal University, No. 436 Xian'ge Road, Anyang 455000, Henan Province, China
| | - Hang Gao
- College of Chemistry, Beijing Normal University, No. 19 Xinjiekouwai Street, Haidian District, Beijing 100875, China
| | - Huabei Zhang
- College of Chemistry, Beijing Normal University, No. 19 Xinjiekouwai Street, Haidian District, Beijing 100875, China
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Benwell CJ, Taylor JAGE, Robinson SD. Endothelial neuropilin-2 influences angiogenesis by regulating actin pattern development and α5-integrin-p-FAK complex recruitment to assembling adhesion sites. FASEB J 2021; 35:e21679. [PMID: 34314542 DOI: 10.1096/fj.202100286r] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 05/03/2021] [Accepted: 05/04/2021] [Indexed: 01/02/2023]
Abstract
The ability to form a variety of cell-matrix connections is crucial for angiogenesis to take place. Without stable anchorage to the extracellular matrix (ECM), endothelial cells (ECs) are unable to sense, integrate and disseminate growth factor stimulated responses that drive growth of a vascular bed. Neuropilin-2 (NRP2) is a widely expressed membrane-bound multifunctional non-tyrosine kinase receptor, which has previously been implicated in influencing cell adhesion and migration by interacting with α5-integrin and regulating adhesion turnover. α5-integrin, and its ECM ligand fibronectin (FN) are both known to be upregulated during the formation of neo-vasculature. Despite being descriptively annotated as a candidate biomarker for aggressive cancer phenotypes, the EC-specific roles for NRP2 during developmental and pathological angiogenesis remain unexplored. The data reported here support a model whereby NRP2 actively promotes EC adhesion and migration by regulating dynamic cytoskeletal remodeling and by stimulating Rab11-dependent recycling of α5-integrin-p-FAK complexes to newly assembling adhesion sites. Furthermore, temporal depletion of EC-NRP2 in vivo impairs primary tumor growth by disrupting vessel formation. We also demonstrate that EC-NRP2 is required for normal postnatal retinal vascular development, specifically by regulating cell-matrix adhesion. Upon loss of endothelial NRP2, vascular outgrowth from the optic nerve during superficial plexus formation is disrupted, likely due to reduced FAK phosphorylation within sprouting tip cells.
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Affiliation(s)
- Christopher J Benwell
- Gut Microbes and Health, Quadram Institute Bioscience, Norwich Research Park, Norwich, UK
| | - James A G E Taylor
- Gut Microbes and Health, Quadram Institute Bioscience, Norwich Research Park, Norwich, UK
| | - Stephen D Robinson
- Gut Microbes and Health, Quadram Institute Bioscience, Norwich Research Park, Norwich, UK.,School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich, UK
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Wang X, Min S, Liu H, Wu N, Liu X, Wang T, Li W, Shen Y, Wang H, Qian Z, Xu H, Zhao C, Chen Y. Nf1 loss promotes Kras-driven lung adenocarcinoma and results in Psat1-mediated glutamate dependence. EMBO Mol Med 2020; 11:emmm.201809856. [PMID: 31036704 PMCID: PMC6554671 DOI: 10.15252/emmm.201809856] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Mutations to KRAS are recurrent in lung adenocarcinomas (LUAD) and are daunting to treat due to the difficulties in KRAS oncoprotein inhibition. A possible resolution to this problem may lie with co-mutations to other genes that also occur in KRAS-driven LUAD that may provide alternative therapeutic vulnerabilities. Approximately 3% of KRAS-mutant LUADs carry functional mutations in NF1 gene encoding neurofibromin-1, a negative regulator of focal adhesion kinase 1 (FAK1). We evaluated the impact of Nf1 loss on LUAD development using a CRISPR/Cas9 platform in a murine model of Kras-mutant LUAD We discovered that Nf1 deactivation is associated with Fak1 hyperactivation and phosphoserine aminotransferase 1 (Psat1) upregulation in mice. Nf1 loss also accelerates murine Kras-driven LUAD tumorigenesis. Analysis of the transcriptome and metabolome reveals that LUAD cells with mutation to Nf1 are addicted to glutamine metabolism. We also reveal that this metabolic vulnerability can be leveraged as a treatment option by pharmacologically inhibiting glutaminase and/or Psat1. Lastly, the findings advocate that tumor stratification by co-mutations to KRAS/NF1 highlights the LAUD patient population expected to be susceptible to inhibiting PSAT1.
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Affiliation(s)
- Xiaojing Wang
- Anhui Clinical and Preclinical Key Laboratory of Respiratory Disease, Department of Respiration, First Affiliated Hospital, Bengbu Medical College, Bengbu, Anhui Province, China
| | - Shengping Min
- Anhui Clinical and Preclinical Key Laboratory of Respiratory Disease, Department of Respiration, First Affiliated Hospital, Bengbu Medical College, Bengbu, Anhui Province, China
| | - Hongli Liu
- Department of Gynecological Oncology, First Affiliated Hospital, Bengbu Medical College, Bengbu, Anhui Province, China
| | - Nan Wu
- Anhui Clinical and Preclinical Key Laboratory of Respiratory Disease, Department of Respiration, First Affiliated Hospital, Bengbu Medical College, Bengbu, Anhui Province, China
| | - Xincheng Liu
- Anhui Clinical and Preclinical Key Laboratory of Respiratory Disease, Department of Respiration, First Affiliated Hospital, Bengbu Medical College, Bengbu, Anhui Province, China
| | - Tao Wang
- Anhui Clinical and Preclinical Key Laboratory of Respiratory Disease, Department of Respiration, First Affiliated Hospital, Bengbu Medical College, Bengbu, Anhui Province, China
| | - Wei Li
- Anhui Clinical and Preclinical Key Laboratory of Respiratory Disease, Department of Respiration, First Affiliated Hospital, Bengbu Medical College, Bengbu, Anhui Province, China
| | - Yuanbing Shen
- Anhui Clinical and Preclinical Key Laboratory of Respiratory Disease, Department of Respiration, First Affiliated Hospital, Bengbu Medical College, Bengbu, Anhui Province, China
| | - Hongtao Wang
- Department of Immunology, Bengbu Medical College, Bengbu, Anhui Province, China
| | - Zhongqing Qian
- Department of Immunology, Bengbu Medical College, Bengbu, Anhui Province, China
| | - Huanbai Xu
- Department of Endocrinology and Metabolism, Shanghai Jiaotong University Affiliated First People's Hospital, Shanghai, China
| | - Chengling Zhao
- Anhui Clinical and Preclinical Key Laboratory of Respiratory Disease, Department of Respiration, First Affiliated Hospital, Bengbu Medical College, Bengbu, Anhui Province, China
| | - Yuqing Chen
- Anhui Clinical and Preclinical Key Laboratory of Respiratory Disease, Department of Respiration, First Affiliated Hospital, Bengbu Medical College, Bengbu, Anhui Province, China
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