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Wang M, Yi J, Gao H, Wei X, Xu W, Zhao M, Zhao M, Shen Y, Wang Z, Wu N, Wei W, Jin S. Radiation-induced YAP/TEAD4 binding confers non-small cell lung cancer radioresistance via promoting NRP1 transcription. Cell Death Dis 2024; 15:619. [PMID: 39187525 PMCID: PMC11347582 DOI: 10.1038/s41419-024-07017-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 08/08/2024] [Accepted: 08/19/2024] [Indexed: 08/28/2024]
Abstract
Despite the importance of radiation therapy as a non-surgical treatment for non-small cell lung cancer (NSCLC), radiation resistance has always been a concern, due to poor patient response and prognosis. Therefore, it is crucial to uncover novel targets to enhance radiotherapy and investigate the mechanisms underlying radiation resistance. Previously, we demonstrated that NRP1 was connected to radiation resistance in NSCLC cells. In the present study, bioinformatics analysis of constructed radiation-resistant A549 and H1299 cell models revealed that transcription coactivator YAP is a significant factor in cell proliferation and metastasis. However, there has been no evidence linking YAP and NRP1 to date. In this research, we have observed that YAP contributes to radiation resistance in NSCLC cells by stimulating cell proliferation, migration, and invasion. Mechanistically, YAP dephosphorylation after NSCLC cell radiation. YAP acts as a transcription co-activator by binding to the transcription factor TEAD4, facilitating TEAD4 to bind to the NRP1 promoter region and thereby increasing NRP1 expression. NRP1 has been identified as a new target gene for YAP/TEAD4. Notably, when inhibiting YAP binds to TEAD4, it inhibits NRP1 expression, and Rescue experiments show that YAP/TEAD4 influences NRP1 to regulate cell proliferation, metastasis and leading to radiation resistance generation. According to these results, YAP/TEAD4/NRP1 is a significant mechanism for radioresistance and can be utilized as a target for enhancing radiotherapy efficacy.
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MESH Headings
- Humans
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/radiotherapy
- Carcinoma, Non-Small-Cell Lung/pathology
- TEA Domain Transcription Factors
- Transcription Factors/metabolism
- Transcription Factors/genetics
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- Lung Neoplasms/radiotherapy
- Lung Neoplasms/genetics
- Radiation Tolerance
- DNA-Binding Proteins/metabolism
- DNA-Binding Proteins/genetics
- YAP-Signaling Proteins/metabolism
- Cell Proliferation
- Adaptor Proteins, Signal Transducing/metabolism
- Adaptor Proteins, Signal Transducing/genetics
- Neuropilin-1/metabolism
- Neuropilin-1/genetics
- Muscle Proteins/metabolism
- Muscle Proteins/genetics
- Gene Expression Regulation, Neoplastic
- Cell Line, Tumor
- Cell Movement
- Animals
- A549 Cells
- Mice, Nude
- Protein Binding
- Transcription, Genetic/radiation effects
- Mice
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Affiliation(s)
- Mingwei Wang
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, Jilin, China
| | - Junxuan Yi
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, Jilin, China
| | - Hui Gao
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, Jilin, China
- Department of Orthopedics, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Xinfeng Wei
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, Jilin, China
| | - Weiqiang Xu
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, Jilin, China
| | - Mingqi Zhao
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, Jilin, China
| | - Mengdie Zhao
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, Jilin, China
| | - Yannan Shen
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, Jilin, China
| | - Zhicheng Wang
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, Jilin, China
| | - Ning Wu
- Department of Radiation Oncology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Wei Wei
- Department of Radiotherapy, Chinese PLA General Hospital, Beijing, China.
| | - Shunzi Jin
- NHC Key Laboratory of Radiobiology, School of Public Health, Jilin University, Changchun, Jilin, China.
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2
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Chen Y, Gialeli C, Shen J, Dunér P, Walse B, Duelli A, Caing-Carlsson R, Blom AM, Zibert JR, Nilsson AH, Alenfall J, Liang C, Nilsson J. Identification of an osteopontin-derived peptide that binds neuropilin-1 and activates vascular repair responses and angiogenesis. Pharmacol Res 2024; 205:107259. [PMID: 38871237 DOI: 10.1016/j.phrs.2024.107259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 05/10/2024] [Accepted: 06/10/2024] [Indexed: 06/15/2024]
Abstract
The osteopontin-derived peptide FOL-005 stimulates hair growth. Using ligand-receptor glyco-capture technology we identified neuropilin-1 (NRP-1), a known co-receptor for vascular endothelial growth factor (VEGF) receptors, as the most probable receptor for FOL-005 and the more stable analogue FOL-026. X-ray diffraction and microscale thermophoresis analysis revealed that FOL-026 shares binding site with VEGF in the NRP-1 b1-subdomain. Stimulation of human umbilical vein endothelial cells with FOL-026 resulted in phosphorylation of VEGFR-2, ERK1/2 and AKT, increased cell growth and migration, stimulation of endothelial tube formation and inhibition of apoptosis in vitro. FOL-026 also promoted angiogenesis in vivo as assessed by subcutaneous Matrigel plug and hind limb ischemia models. NRP-1 knock-down or treatment of NRP-1 antagonist EG00229 blocked the stimulatory effects of FOL-026 on endothelial cells. Exposure of human coronary artery smooth muscle cells to FOL-026 stimulated cell growth, migration, inhibited apoptosis, and induced VEGF gene expression and VEGFR-2/AKT phosphorylation by an NRP-1-dependent mechanism. RNA sequencing showed that FOL-026 activated pathways involved in tissue repair. These findings identify NRP-1 as the receptor for FOL-026 and show that its biological effects mimic that of growth factors binding to the VEGF receptor family. They also suggest that FOL-026 may have therapeutical potential in conditions that require vascular repair and/or enhanced angiogenesis.
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Affiliation(s)
- Yihong Chen
- Department of Cardiology, Second Affiliated Hospital of Naval Medical University, Shanghai Cardiovascular Institute of Integrative Medicine, Shanghai, China; Department of Experimental Medical Science, Lund University, Sweden
| | | | - Junyan Shen
- Department of Experimental Medical Science, Lund University, Sweden; Institute for Regenerative Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Pontus Dunér
- Department of Clinical Sciences Malmö, Lund University, Sweden
| | | | | | | | - Anna M Blom
- Department of Translational Medicine, Lund University, Sweden
| | | | | | - Jan Alenfall
- Department of Clinical Sciences Malmö, Lund University, Sweden; Coegin Pharma AB, Lund, Sweden
| | - Chun Liang
- Department of Cardiology, Second Affiliated Hospital of Naval Medical University, Shanghai Cardiovascular Institute of Integrative Medicine, Shanghai, China.
| | - Jan Nilsson
- Department of Clinical Sciences Malmö, Lund University, Sweden.
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3
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Zhou H, Li C, Ren Y, Wang WA, Zhuang J, Ren Y, Shen L, Chen Y. Modulation of epithelial-mesenchymal transition by gemcitabine: Targeting ionizing radiation-induced cellular senescence in lung cancer cell. Biochem Pharmacol 2024; 224:116234. [PMID: 38670436 DOI: 10.1016/j.bcp.2024.116234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 04/05/2024] [Accepted: 04/22/2024] [Indexed: 04/28/2024]
Abstract
Ionizing radiation, a standard therapeutic approach for lung cancer, often leads to cellular senescence and the induction of epithelial-mesenchymal transition (EMT), posing significant challenges in treatment efficacy and cancer progression. Overcoming these obstacles is crucial for enhancing therapeutic outcomes in lung cancer management. This study investigates the effects of ionizing radiation and gemcitabine on lung cancer cells, with a focus on induced senescence, EMT, and apoptosis. Human-derived A549, PC-9, and mouse-derived Lewis lung carcinoma cells exposed to 10 Gy X-ray irradiation exhibited senescence, as indicated by morphological changes, β-galactosidase staining, and cell cycle arrest through the p53-p21 pathway. Ionizing radiation also promoted EMT via TGFβ/SMAD signaling, evidenced by increased TGFβ1 levels, altered EMT marker expressions, and enhanced cell migration. Gemcitabine, a first-line lung cancer treatment, was shown to enhance apoptosis in senescent cells caused by radiation. It inhibited cell proliferation, induced mitochondrial damage, and triggered caspase-mediated apoptosis, thus mitigating EMT in vitro. Furthermore, in vivo studies using a lung cancer mouse model revealed that gemcitabine, combined with radiation, significantly reduced tumor volume and weight, extended survival, and suppressed malignancy indices in irradiated tumors. Collectively, these findings demonstrate that gemcitabine enhances the therapeutic efficacy against radiation-resistant lung cancer cells, both by inducing apoptosis in senescent cells and inhibiting EMT, offering potential improvements in lung cancer treatment strategies.
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Affiliation(s)
- Heng Zhou
- Department of Radio-Chemotherapy, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China; School of Public Health, Yangzhou University, Yangzhou, China
| | - Chenghao Li
- Department of Radio-Chemotherapy, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China; Yangzhou University Medical College, Yangzhou, China.
| | - Yanxian Ren
- School of Public Health, Yangzhou University, Yangzhou, China; The First Hospital of Lanzhou University, Lanzhou University, Lanzhou, China
| | - Wen-An Wang
- School of Public Health, Yangzhou University, Yangzhou, China; The First Hospital of Lanzhou University, Lanzhou University, Lanzhou, China
| | - Jiayuan Zhuang
- School of Public Health, Yangzhou University, Yangzhou, China; Clinical College of Chinese Medicine, Gansu University of Chinese Medicine, Lanzhou, China
| | - Yue Ren
- Department of Radio-Chemotherapy, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China; Yangzhou University Medical College, Yangzhou, China
| | - Lin Shen
- Department of Radio-Chemotherapy, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China; Yangzhou University Medical College, Yangzhou, China
| | - Yong Chen
- Department of Radio-Chemotherapy, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China; Yangzhou University Medical College, Yangzhou, China.
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Rodrigues EM, Giovanini AF, Ribas CAPM, Malafaia O, Roesler R, Isolan GR. The Nervous System Development Regulator Neuropilin-1 as a Potential Prognostic Marker and Therapeutic Target in Brain Cancer. Cancers (Basel) 2023; 15:4922. [PMID: 37894289 PMCID: PMC10605093 DOI: 10.3390/cancers15204922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/29/2023] Open
Abstract
Neuropilins are transmembrane glycoproteins that regulate developmental processes in the nervous system and other tissues. Overexpression of neuropilin-1 (NRP1) occurs in many solid tumor types and, in several instances, may predict patient outcome in terms of overall survival. Experimental inhibition of NRP1 activity can display antitumor effects in different cancer models. Here, we review NRP1 expression and function in adult and pediatric brain cancers, particularly glioblastomas (GBMs) and medulloblastomas, and present analyses of NRP1 transcript levels and their association with patient survival in GBMs. The case of NRP1 highlights the potential of regulators of neurodevelopment as biomarkers and therapeutic targets in brain cancer.
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Affiliation(s)
- Eduardo Mello Rodrigues
- Graduate Program in Principles of Surgery, Mackenzie Evangelical University, Curitiba 80730-000, PR, Brazil; (E.M.R.)
- The Center for Advanced Neurology and Neurosurgery (CEANNE), Porto Alegre 90560-010, RS, Brazil
| | - Allan Fernando Giovanini
- Graduate Program in Principles of Surgery, Mackenzie Evangelical University, Curitiba 80730-000, PR, Brazil; (E.M.R.)
| | | | - Osvaldo Malafaia
- Graduate Program in Principles of Surgery, Mackenzie Evangelical University, Curitiba 80730-000, PR, Brazil; (E.M.R.)
| | - Rafael Roesler
- Department of Pharmacology, Institute for Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre 90035-003, RS, Brazil
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital (CPE-HCPA), Federal University of Rio Grande do Sul, Porto Alegre 90035-003, RS, Brazil
- National Science and Technology Institute for Children’s Cancer Biology and Pediatric Oncology—INCT BioOncoPed, Porto Alegre 90035-003, RS, Brazil
| | - Gustavo R. Isolan
- Graduate Program in Principles of Surgery, Mackenzie Evangelical University, Curitiba 80730-000, PR, Brazil; (E.M.R.)
- The Center for Advanced Neurology and Neurosurgery (CEANNE), Porto Alegre 90560-010, RS, Brazil
- National Science and Technology Institute for Children’s Cancer Biology and Pediatric Oncology—INCT BioOncoPed, Porto Alegre 90035-003, RS, Brazil
- Spalt Therapeutics, Porto Alegre 90560-010, RS, Brazil
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5
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Fernández-Palanca P, Payo-Serafín T, San-Miguel B, Méndez-Blanco C, Tuñón MJ, González-Gallego J, Mauriz JL. Hepatocellular carcinoma cells loss lenvatinib efficacy in vitro through autophagy and hypoxia response-derived neuropilin-1 degradation. Acta Pharmacol Sin 2022; 44:1066-1082. [PMID: 36376373 PMCID: PMC10104874 DOI: 10.1038/s41401-022-01021-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 10/25/2022] [Indexed: 11/16/2022] Open
Abstract
AbstractDespite pharmacological advances such as lenvatinib approval, therapeutic failure of hepatocellular carcinoma (HCC) remains a big challenge due to the complexity of its underlying molecular mechanisms. Neuropilin-1 (NRP1) is a co-receptor involved in several cellular processes associated to chemoresistance development. Since both the double-edged process of autophagy and hypoxia-derived response play crucial roles in the loss of therapeutic effectiveness, herein we investigated the interplay among NRP1, autophagy and hypoxia in development of lenvatinib resistance in HCC cell lines. We first analyzed NRP1 expression levels in human HCC samples from public databases, found significantly increased NRP1 expression in human HCC samples as well as its correlation with advanced tumor and metastasis stages. Among 3 HCC cell lines (HepG2, Huh-7 and Hep3B), Hep3B and Huh-7 cells showed significantly increased NRP1 expression levels and cell migration ability together with higher susceptibility to lenvatinib. We demonstrated that NRP1 gene silencing significantly enhanced the anticancer effects of lenvatinib on Hep3B and Huh-7 cells. Furthermore, lenvatinib suppressed NRP1 expression through promoting autophagy in Hep3B and Huh-7 cells; co-treatment with bafilomycin A1 attenuated the antitumor effects of lenvatinib, and NRP1 silencing prevented this loss of in vitro effectiveness of lenvatinib even in the presence of bafilomycin A1. In addition, exposure to a hypoxic microenvironment significantly decreased NRP1 expression through autophagy in Hep3B and Huh-7 cells. Under hypoxia, HIF-1α directly modulated NRP1 expression; HIF-1α silencing not only enhanced the anticancer effects of combined lenvatinib and hypoxia, but also prevented the loss of effectiveness caused by bafilomycin A1, highlighting the potential role of HIF-1α-derived hypoxia response in the adaptive cellular response to lenvatinib and promoting resistance acquisition by autophagy modulation. Overall, NRP1 may constitute a potential therapeutic target to prevent lenvatinib failure derived from a hypoxia-associated modulation of autophagy in advanced HCC.
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6
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Zheng C, Wang H, Zhao S, Ma C, Gao H, Yang F, Zhou X, Lu J, Zhang C, Zhu H. Inhibition of neuropilin-1 enhances the therapeutic effects of lenvatinib in suppressing cholangiocarcinoma cells via the c-Met pathway. Eur J Pharmacol 2022; 935:175290. [DOI: 10.1016/j.ejphar.2022.175290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 09/11/2022] [Accepted: 09/13/2022] [Indexed: 11/28/2022]
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Ashrafi A, Akter Z, Modareszadeh P, Modareszadeh P, Berisha E, Alemi PS, Chacon Castro MDC, Deese AR, Zhang L. Current Landscape of Therapeutic Resistance in Lung Cancer and Promising Strategies to Overcome Resistance. Cancers (Basel) 2022; 14:4562. [PMID: 36230484 PMCID: PMC9558974 DOI: 10.3390/cancers14194562] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/12/2022] [Accepted: 09/15/2022] [Indexed: 02/06/2023] Open
Abstract
Lung cancer is one of the leading causes of cancer-related deaths worldwide with a 5-year survival rate of less than 18%. Current treatment modalities include surgery, chemotherapy, radiation therapy, targeted therapy, and immunotherapy. Despite advances in therapeutic options, resistance to therapy remains a major obstacle to the effectiveness of long-term treatment, eventually leading to therapeutic insensitivity, poor progression-free survival, and disease relapse. Resistance mechanisms stem from genetic mutations and/or epigenetic changes, unregulated drug efflux, tumor hypoxia, alterations in the tumor microenvironment, and several other cellular and molecular alterations. A better understanding of these mechanisms is crucial for targeting factors involved in therapeutic resistance, establishing novel antitumor targets, and developing therapeutic strategies to resensitize cancer cells towards treatment. In this review, we summarize diverse mechanisms driving resistance to chemotherapy, radiotherapy, targeted therapy, and immunotherapy, and promising strategies to help overcome this therapeutic resistance.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Li Zhang
- Department of Biological Sciences, The University of Texas at Dallas, Richardson, TX 75080, USA
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GATA3 Exerts Distinct Transcriptional Functions to Regulate Radiation Resistance in A549 and H1299 Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9174111. [PMID: 35993027 PMCID: PMC9385326 DOI: 10.1155/2022/9174111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 07/23/2022] [Indexed: 11/17/2022]
Abstract
Background Radiation resistance of lung cancer cells is a vital factor affecting the curative effect of lung cancer. Transcription factor GATA3 is involved in cell proliferation, invasion, and migration and is significantly expressed in a variety of malignancies. However, the molecular mechanism governing GATA3 regulation in lung cancer cells' radiation resistance is unknown. Methods Radiation-resistant cell models (A549-RR and H1299-RR) were made using fractionated high-dose irradiation. Use clone formation, CCK-8, F-actin staining, cell cycle detection, and other experiments to verify whether the model is successfully constructed. Cells were transiently transfected with knockdown or overexpression plasmid. To explore the relationship between GATA3/H3K4me3 and target genes, we used ChIP-qPCR, ChIP-seq, and dual luciferase reporter gene experiments. Xenograft tumor models were used to evaluate the effect of GATA3 depletion on the tumorigenic behavior of lung cancer cells. Results We report that transcription factors GATA3 and H3K4me3 coactivate NRP1 gene transcription when A549 cells develop radiation resistance. However, the mechanism of radiation resistance in H1299 cells is that GATA3 acts as a transcription inhibitor. The decrease of GATA3 will promote the increase of NRP1 transcription, in which H3K4me3 does not play a leading role. Conclusions GATA3, an upstream transcriptional regulator of NRP1 gene, regulates the radioresistance of A549 and H1299 cells by opposite mechanisms, which provides a new target for radiotherapy of lung cancer.
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Zhang J, Yu Y, Yin X, Feng L, Li Z, Liu X, Yu X, Li B. A Circ-0007022/miR-338-3p/Neuropilin-1 Axis Reduces the Radiosensitivity of Esophageal Squamous Cell Carcinoma by Activating Epithelial-To-Mesenchymal Transition and PI3K/AKT Pathway. Front Genet 2022; 13:854097. [PMID: 35571014 PMCID: PMC9100939 DOI: 10.3389/fgene.2022.854097] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 03/24/2022] [Indexed: 11/13/2022] Open
Abstract
Radiotherapy resistance is an important cause of treatment failure in esophageal squamous cell carcinoma (ESCC). Circular RNAs have attracted a lot of attention in cancer research, but their role in ESCC radiosensitivity has not been elucidated yet. Here, we aimed to evaluated the functional impacts of circ-0007022 on ESCC radiosensitivity. In this study, a stable radiotherapy-resistant cell line was established and verified by a series of functional experiments. Subsequently, high-throughput sequencing revealed that circ-0007022 was significantly overexpressed in the radiotherapy-resistant cell line and this conclusion was verified in ESCC patients’ tumor tissues by real-time quantitative PCR. Moreover, loss-of-function and overexpression experiments in vitro and in vivo revealed that, after irradiation, the abilities of proliferation and migration in circ-0007022-overexpressing stable transgenic strain were significantly higher than that in circ-0007022-knockdown stable transgenic strain. Additionally, RNA Immunoprecipitation, RNA pull-down, luciferase reporter assays, and fluorescence in situ hybridization experiments demonstrated the mechanism of how circ-0007022 could sponge miR-338-3p and upregulate downstream target of miR-338-3p, neuropilin-1 (NRP1). Moreover, NRP1 led to poor prognosis for ESCC patients receiving radiotherapy, and NRP1 knock-down enhanced radiosensitivity of ESCC cells. Furthermore, circ-0007022 overexpression activated Epithelial-to-mesenchymal transition and PI3K/Akt pathway, and NRP1 knock-down could reversed this phenomenon. Finally, Akt Inhibitor reversed circ-0007022s role in radiotherapy in ESCC cells. Taken together, the circ-0007022/miR-338-3p/NRP1 axis enhances the radiation resistance of ESCC cells via regulating EMT and PI3K/Akt pathway. The new circRNA circ-0007022 is thus expected to be a therapeutic target for ESCC patients.
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Affiliation(s)
- Junpeng Zhang
- Department of Graduate, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Yanyan Yu
- Department of Neurology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Xiaoyang Yin
- Department of Graduate, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Lei Feng
- Department of Graduate, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Zhe Li
- Department of Graduate, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Xiaomeng Liu
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Xinshuang Yu
- Department of Oncology, The First Affiliated Hospital of Shandong First Medical University and Shandong Provincial Qianfoshan Hospital, Jinan, China
| | - Baosheng Li
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
- *Correspondence: Baosheng Li,
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